diff options
49 files changed, 3419 insertions, 2394 deletions
diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json index 41cb28a12..2480ff9a2 100644 --- a/Godeps/Godeps.json +++ b/Godeps/Godeps.json @@ -17,8 +17,8 @@ }, { "ImportPath": "github.com/ethereum/ethash", - "Comment": "v23.1-82-g908aad3", - "Rev": "908aad345c9fbf3ab9bbb94031dc02d0d90df1b8" + "Comment": "v23.1-195-g4d50db9", + "Rev": "4d50db90d8bb5f2fae357570366cb8c657a4ddfc" }, { "ImportPath": "github.com/howeyc/fsnotify", diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/.travis.yml b/Godeps/_workspace/src/github.com/ethereum/ethash/.travis.yml index 30e944a68..b83b02bf3 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/.travis.yml +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/.travis.yml @@ -1,14 +1,23 @@ -# making our travis.yml play well with C++11 by obtaining g++4.8 -# Taken from this file: -# https://github.com/beark/ftl/blob/master/.travis.yml +language: go +go: + - 1.4.2 + before_install: + # for g++4.8 and C++11 - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test + + # Set up go-ethereum - sudo apt-get update -y -qq + - sudo apt-get install -yqq libgmp3-dev + - git clone --depth=10 https://github.com/ethereum/go-ethereum ${GOPATH}/src/github.com/ethereum/go-ethereum + # use canned dependencies from the go-ethereum repository + - export GOPATH=$GOPATH:$GOPATH/src/github.com/ethereum/go-ethereum/Godeps/_workspace/ + - echo $GOPATH install: + # need to explicitly request version 1.48 since by default we get 1.46 which does not work with C++11 - sudo apt-get install -qq --yes --force-yes g++-4.8 - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 50 - # need to explicitly request version 1.48 since by default we get 1.46 which does not work with C++11 - - sudo apt-get install -qq wget cmake bash libboost-test1.48-dev libboost-system1.48-dev libboost-filesystem1.48-dev nodejs python-pip python-dev + - sudo apt-get install -qq wget cmake bash libboost-test1.48-dev libboost-system1.48-dev libboost-filesystem1.48-dev nodejs python-pip python-dev valgrind - sudo pip install virtualenv -q script: "./test/test.sh" diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/README.md b/Godeps/_workspace/src/github.com/ethereum/ethash/README.md index 8b9e015cf..2b2c3b544 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/README.md +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/README.md @@ -1,7 +1,22 @@ [](https://travis-ci.org/ethereum/ethash) - +[](https://ci.appveyor.com/project/debris/ethash-nr37r/branch/master) # Ethash For details on this project, please see the Ethereum wiki: https://github.com/ethereum/wiki/wiki/Ethash + +### Coding Style for C++ code: + +Follow the same exact style as in [cpp-ethereum](https://github.com/ethereum/cpp-ethereum/blob/develop/CodingStandards.txt) + +### Coding Style for C code: + +The main thing above all is code consistency. + +- Tabs for indentation. A tab is 4 spaces +- Try to stick to the [K&R](http://en.wikipedia.org/wiki/Indent_style#K.26R_style), + especially for the C code. +- Keep the line lengths reasonable. No hard limit on 80 characters but don't go further + than 110. Some people work with multiple buffers next to each other. + Make them like you :) diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/appveyor.yml b/Godeps/_workspace/src/github.com/ethereum/ethash/appveyor.yml new file mode 100644 index 000000000..ac36a0626 --- /dev/null +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/appveyor.yml @@ -0,0 +1,43 @@ +version: 1.0.0.{build} + +environment: + BOOST_ROOT: "c:/projects/ethash/deps/boost" + +branches: + only: + - master + - develop + +os: Windows Server 2012 R2 + +clone_folder: c:\projects\ethash + +#platform: Any CPU +#configuration: Debug + +install: + # by default, all script lines are interpreted as batch + +# scripts to run before build +before_build: + - echo "Downloading boost..." + - mkdir c:\projects\ethash\deps + - cd c:\projects\ethash\deps + - curl -O https://build.ethdev.com/builds/windows-precompiled/boost.tar.gz + - echo "Unzipping boost..." + - 7z x boost.tar.gz > nul + - 7z x boost.tar > nul + - ls + - echo "Running cmake..." + - cd c:\projects\ethash + - cmake . + +build: + project: ALL_BUILD.vcxproj # path to Visual Studio solution or project + +after_build: + - echo "Running tests..." + - cd c:\projects\ethash\test\c\Debug + - Test.exe + - echo "Finished!" + diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go b/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go index 74285a33c..5b94711c4 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go @@ -1,32 +1,22 @@ -/* -################################################################################### -################################################################################### -#################### #################### -#################### EDIT AND YOU SHALL FEEL MY WRATH - jeff #################### -#################### #################### -################################################################################### -################################################################################### -*/ - package ethash /* -#cgo CFLAGS: -std=gnu99 -Wall -#include "src/libethash/util.c" -#include "src/libethash/internal.c" -#include "src/libethash/sha3.c" +#include "src/libethash/internal.h" + +int ethashGoCallback_cgo(unsigned); */ import "C" import ( - "bytes" - "encoding/binary" + "errors" "fmt" "io/ioutil" "math/big" "math/rand" "os" - "path" + "os/user" + "path/filepath" + "runtime" "sync" "time" "unsafe" @@ -38,318 +28,267 @@ import ( "github.com/ethereum/go-ethereum/pow" ) -var minDifficulty = new(big.Int).Exp(big.NewInt(2), big.NewInt(256), big.NewInt(0)) - -type ParamsAndCache struct { - params *C.ethash_params - cache *C.ethash_cache - Epoch uint64 -} - -type DAG struct { - dag unsafe.Pointer // full GB of memory for dag - file bool - paramsAndCache *ParamsAndCache -} - -type Ethash struct { - turbo bool - HashRate int64 - chainManager pow.ChainManager - dag *DAG - paramsAndCache *ParamsAndCache - ret *C.ethash_return_value - dagMutex *sync.RWMutex - cacheMutex *sync.RWMutex -} +var ( + minDifficulty = new(big.Int).Exp(big.NewInt(2), big.NewInt(256), big.NewInt(0)) + sharedLight = new(Light) +) -func parseNonce(nonce []byte) (uint64, error) { - nonceBuf := bytes.NewBuffer(nonce) - nonceInt, err := binary.ReadUvarint(nonceBuf) - if err != nil { - return 0, err - } - return nonceInt, nil -} +const ( + epochLength uint64 = 30000 + cacheSizeForTesting C.uint64_t = 1024 + dagSizeForTesting C.uint64_t = 1024 * 32 +) -const epochLength uint64 = 30000 +var DefaultDir = defaultDir() -func makeParamsAndCache(chainManager pow.ChainManager, blockNum uint64) (*ParamsAndCache, error) { - if blockNum >= epochLength*2048 { - return nil, fmt.Errorf("block number is out of bounds (value %v, limit is %v)", blockNum, epochLength*2048) +func defaultDir() string { + home := os.Getenv("HOME") + if user, err := user.Current(); err == nil { + home = user.HomeDir } - paramsAndCache := &ParamsAndCache{ - params: new(C.ethash_params), - cache: new(C.ethash_cache), - Epoch: blockNum / epochLength, + if runtime.GOOS == "windows" { + return filepath.Join(home, "AppData", "Ethash") } - C.ethash_params_init(paramsAndCache.params, C.uint32_t(uint32(blockNum))) - paramsAndCache.cache.mem = C.malloc(C.size_t(paramsAndCache.params.cache_size)) - - seedHash, err := GetSeedHash(blockNum) - if err != nil { - return nil, err - } - - glog.V(logger.Info).Infof("Making cache for epoch: %d (%v) (%x)\n", paramsAndCache.Epoch, blockNum, seedHash) - start := time.Now() - C.ethash_mkcache(paramsAndCache.cache, paramsAndCache.params, (*C.ethash_blockhash_t)(unsafe.Pointer(&seedHash[0]))) + return filepath.Join(home, ".ethash") +} - if glog.V(logger.Info) { - glog.Infoln("Took:", time.Since(start)) - } +// cache wraps an ethash_light_t with some metadata +// and automatic memory management. +type cache struct { + epoch uint64 + test bool - return paramsAndCache, nil + gen sync.Once // ensures cache is only generated once. + ptr *C.struct_ethash_light } -func (pow *Ethash) UpdateCache(blockNum uint64, force bool) error { - pow.cacheMutex.Lock() - defer pow.cacheMutex.Unlock() - - thisEpoch := blockNum / epochLength - if force || pow.paramsAndCache.Epoch != thisEpoch { - var err error - pow.paramsAndCache, err = makeParamsAndCache(pow.chainManager, blockNum) - if err != nil { - panic(err) +// generate creates the actual cache. it can be called from multiple +// goroutines. the first call will generate the cache, subsequent +// calls wait until it is generated. +func (cache *cache) generate() { + cache.gen.Do(func() { + started := time.Now() + seedHash := makeSeedHash(cache.epoch) + glog.V(logger.Debug).Infof("Generating cache for epoch %d (%x)", cache.epoch, seedHash) + size := C.ethash_get_cachesize(C.uint64_t(cache.epoch * epochLength)) + if cache.test { + size = cacheSizeForTesting } - } - - return nil + cache.ptr = C.ethash_light_new_internal(size, (*C.ethash_h256_t)(unsafe.Pointer(&seedHash[0]))) + runtime.SetFinalizer(cache, freeCache) + glog.V(logger.Debug).Infof("Done generating cache for epoch %d, it took %v", cache.epoch, time.Since(started)) + }) } -func makeDAG(p *ParamsAndCache) *DAG { - d := &DAG{ - dag: C.malloc(C.size_t(p.params.full_size)), - file: false, - paramsAndCache: p, - } +func freeCache(cache *cache) { + C.ethash_light_delete(cache.ptr) + cache.ptr = nil +} - donech := make(chan string) - go func() { - t := time.NewTicker(5 * time.Second) - tstart := time.Now() - done: - for { - select { - case <-t.C: - glog.V(logger.Info).Infof("... still generating DAG (%v) ...\n", time.Since(tstart).Seconds()) - case str := <-donech: - glog.V(logger.Info).Infof("... %s ...\n", str) - break done - } - } - }() - C.ethash_compute_full_data(d.dag, p.params, p.cache) - donech <- "DAG generation completed" - return d +// Light implements the Verify half of the proof of work. +// It uses a small in-memory cache to verify the nonces +// found by Full. +type Light struct { + test bool // if set use a smaller cache size + mu sync.Mutex // protects current + current *cache // last cache which was generated. + // TODO: keep multiple caches. } -func (pow *Ethash) writeDagToDisk(dag *DAG, epoch uint64) *os.File { - if epoch > 2048 { - panic(fmt.Errorf("Epoch must be less than 2048 (is %v)", epoch)) +// Verify checks whether the block's nonce is valid. +func (l *Light) Verify(block pow.Block) bool { + // TODO: do ethash_quick_verify before getCache in order + // to prevent DOS attacks. + var ( + blockNum = block.NumberU64() + difficulty = block.Difficulty() + cache = l.getCache(blockNum) + dagSize = C.ethash_get_datasize(C.uint64_t(blockNum)) + ) + if l.test { + dagSize = dagSizeForTesting } - data := C.GoBytes(unsafe.Pointer(dag.dag), C.int(dag.paramsAndCache.params.full_size)) - file, err := os.Create("/tmp/dag") - if err != nil { - panic(err) + if blockNum >= epochLength*2048 { + glog.V(logger.Debug).Infof("block number %d too high, limit is %d", epochLength*2048) + return false } + // Recompute the hash using the cache. + hash := hashToH256(block.HashNoNonce()) + ret := C.ethash_light_compute_internal(cache.ptr, dagSize, hash, C.uint64_t(block.Nonce())) + if !ret.success { + return false + } + // Make sure cache is live until after the C call. + // This is important because a GC might happen and execute + // the finalizer before the call completes. + _ = cache + // The actual check. + target := new(big.Int).Div(minDifficulty, difficulty) + return h256ToHash(ret.result).Big().Cmp(target) <= 0 +} - dataEpoch := make([]byte, 8) - binary.BigEndian.PutUint64(dataEpoch, epoch) - - file.Write(dataEpoch) - file.Write(data) +func h256ToHash(in C.ethash_h256_t) common.Hash { + return *(*common.Hash)(unsafe.Pointer(&in.b)) +} - return file +func hashToH256(in common.Hash) C.ethash_h256_t { + return C.ethash_h256_t{b: *(*[32]C.uint8_t)(unsafe.Pointer(&in[0]))} } -func (pow *Ethash) UpdateDAG() { - blockNum := pow.chainManager.CurrentBlock().NumberU64() - if blockNum >= epochLength*2048 { - // This will crash in the 2030s or 2040s - panic(fmt.Errorf("Current block number is out of bounds (value %v, limit is %v)", blockNum, epochLength*2048)) +func (l *Light) getCache(blockNum uint64) *cache { + var c *cache + epoch := blockNum / epochLength + // Update or reuse the last cache. + l.mu.Lock() + if l.current != nil && l.current.epoch == epoch { + c = l.current + } else { + c = &cache{epoch: epoch, test: l.test} + l.current = c } + l.mu.Unlock() + // Wait for the cache to finish generating. + c.generate() + return c +} - pow.dagMutex.Lock() - defer pow.dagMutex.Unlock() - thisEpoch := blockNum / epochLength - if pow.dag == nil || pow.dag.paramsAndCache.Epoch != thisEpoch { - if pow.dag != nil && pow.dag.dag != nil { - C.free(pow.dag.dag) - pow.dag.dag = nil - } +// dag wraps an ethash_full_t with some metadata +// and automatic memory management. +type dag struct { + epoch uint64 + test bool + dir string - if pow.dag != nil && pow.dag.paramsAndCache.cache.mem != nil { - C.free(pow.dag.paramsAndCache.cache.mem) - pow.dag.paramsAndCache.cache.mem = nil - } + gen sync.Once // ensures DAG is only generated once. + ptr *C.struct_ethash_full +} - // Make the params and cache for the DAG - paramsAndCache, err := makeParamsAndCache(pow.chainManager, blockNum) - if err != nil { - panic(err) +// generate creates the actual DAG. it can be called from multiple +// goroutines. the first call will generate the DAG, subsequent +// calls wait until it is generated. +func (d *dag) generate() { + d.gen.Do(func() { + var ( + started = time.Now() + seedHash = makeSeedHash(d.epoch) + blockNum = C.uint64_t(d.epoch * epochLength) + cacheSize = C.ethash_get_cachesize(blockNum) + dagSize = C.ethash_get_datasize(blockNum) + ) + if d.test { + cacheSize = cacheSizeForTesting + dagSize = dagSizeForTesting } - - // TODO: On non-SSD disks, loading the DAG from disk takes longer than generating it in memory - pow.paramsAndCache = paramsAndCache - path := path.Join("/", "tmp", "dag") - pow.dag = nil - glog.V(logger.Info).Infoln("Retrieving DAG") - start := time.Now() - - file, err := os.Open(path) - if err != nil { - glog.V(logger.Info).Infof("No DAG found. Generating new DAG in '%s' (this takes a while)...\n", path) - pow.dag = makeDAG(paramsAndCache) - file = pow.writeDagToDisk(pow.dag, thisEpoch) - pow.dag.file = true - } else { - data, err := ioutil.ReadAll(file) - if err != nil { - glog.V(logger.Info).Infof("DAG load err: %v\n", err) - } - - if len(data) < 8 { - glog.V(logger.Info).Infof("DAG in '%s' is less than 8 bytes, it must be corrupted. Generating new DAG (this takes a while)...\n", path) - pow.dag = makeDAG(paramsAndCache) - file = pow.writeDagToDisk(pow.dag, thisEpoch) - pow.dag.file = true - } else { - dataEpoch := binary.BigEndian.Uint64(data[0:8]) - if dataEpoch < thisEpoch { - glog.V(logger.Info).Infof("DAG in '%s' is stale. Generating new DAG (this takes a while)...\n", path) - pow.dag = makeDAG(paramsAndCache) - file = pow.writeDagToDisk(pow.dag, thisEpoch) - pow.dag.file = true - } else if dataEpoch > thisEpoch { - // FIXME - panic(fmt.Errorf("Saved DAG in '%s' reports to be from future epoch %v (current epoch is %v)\n", path, dataEpoch, thisEpoch)) - } else if len(data) != (int(paramsAndCache.params.full_size) + 8) { - glog.V(logger.Info).Infof("DAG in '%s' is corrupted. Generating new DAG (this takes a while)...\n", path) - pow.dag = makeDAG(paramsAndCache) - file = pow.writeDagToDisk(pow.dag, thisEpoch) - pow.dag.file = true - } else { - data = data[8:] - pow.dag = &DAG{ - dag: unsafe.Pointer(&data[0]), - file: true, - paramsAndCache: paramsAndCache, - } - } - } + if d.dir == "" { + d.dir = DefaultDir } - glog.V(logger.Info).Infoln("Took:", time.Since(start)) - - file.Close() - } -} - -func New(chainManager pow.ChainManager) *Ethash { - paramsAndCache, err := makeParamsAndCache(chainManager, chainManager.CurrentBlock().NumberU64()) - if err != nil { - panic(err) - } - - return &Ethash{ - turbo: true, - paramsAndCache: paramsAndCache, - chainManager: chainManager, - dag: nil, - cacheMutex: new(sync.RWMutex), - dagMutex: new(sync.RWMutex), - } + glog.V(logger.Info).Infof("Generating DAG for epoch %d (%x)", d.epoch, seedHash) + // Generate a temporary cache. + // TODO: this could share the cache with Light + cache := C.ethash_light_new_internal(cacheSize, (*C.ethash_h256_t)(unsafe.Pointer(&seedHash[0]))) + defer C.ethash_light_delete(cache) + // Generate the actual DAG. + d.ptr = C.ethash_full_new_internal( + C.CString(d.dir), + hashToH256(seedHash), + dagSize, + cache, + (C.ethash_callback_t)(unsafe.Pointer(C.ethashGoCallback_cgo)), + ) + if d.ptr == nil { + panic("ethash_full_new IO or memory error") + } + runtime.SetFinalizer(d, freeDAG) + glog.V(logger.Info).Infof("Done generating DAG for epoch %d, it took %v", d.epoch, time.Since(started)) + }) } -func (pow *Ethash) DAGSize() uint64 { - return uint64(pow.dag.paramsAndCache.params.full_size) +func freeDAG(h *dag) { + C.ethash_full_delete(h.ptr) + h.ptr = nil } -func (pow *Ethash) CacheSize() uint64 { - return uint64(pow.paramsAndCache.params.cache_size) +//export ethashGoCallback +func ethashGoCallback(percent C.unsigned) C.int { + glog.V(logger.Info).Infof("Still generating DAG: %d%%", percent) + return 0 } -func GetSeedHash(blockNum uint64) ([]byte, error) { +// MakeDAG pre-generates a DAG file for the given block number in the +// given directory. If dir is the empty string, the default directory +// is used. +func MakeDAG(blockNum uint64, dir string) error { + d := &dag{epoch: blockNum / epochLength, dir: dir} if blockNum >= epochLength*2048 { - return nil, fmt.Errorf("block number is out of bounds (value %v, limit is %v)", blockNum, epochLength*2048) - } - - epoch := blockNum / epochLength - seedHash := make([]byte, 32) - var i uint64 - for i = 0; i < 32; i++ { - seedHash[i] = 0 + return fmt.Errorf("block number too high, limit is %d", epochLength*2048) } - for i = 0; i < epoch; i++ { - seedHash = crypto.Sha3(seedHash) + d.generate() + if d.ptr == nil { + return errors.New("failed") } - return seedHash, nil + return nil } -func (pow *Ethash) Stop() { - pow.cacheMutex.Lock() - pow.dagMutex.Lock() - defer pow.dagMutex.Unlock() - defer pow.cacheMutex.Unlock() +// Full implements the Search half of the proof of work. +type Full struct { + Dir string // use this to specify a non-default DAG directory - if pow.paramsAndCache.cache != nil { - C.free(pow.paramsAndCache.cache.mem) - } - if pow.dag.dag != nil && !pow.dag.file { - C.free(pow.dag.dag) - } - if pow.dag != nil && pow.dag.paramsAndCache != nil && pow.dag.paramsAndCache.cache.mem != nil { - C.free(pow.dag.paramsAndCache.cache.mem) - pow.dag.paramsAndCache.cache.mem = nil - } - pow.dag.dag = nil + test bool // if set use a smaller DAG size + turbo bool + hashRate int64 + + mu sync.Mutex // protects dag + current *dag // current full DAG } -func (pow *Ethash) Search(block pow.Block, stop <-chan struct{}) (uint64, []byte, []byte) { - pow.UpdateDAG() +func (pow *Full) getDAG(blockNum uint64) (d *dag) { + epoch := blockNum / epochLength + pow.mu.Lock() + if pow.current != nil && pow.current.epoch == epoch { + d = pow.current + } else { + d = &dag{epoch: epoch, test: pow.test, dir: pow.Dir} + pow.current = d + } + pow.mu.Unlock() + // wait for it to finish generating. + d.generate() + return d +} - pow.dagMutex.RLock() - defer pow.dagMutex.RUnlock() +func (pow *Full) Search(block pow.Block, stop <-chan struct{}) (nonce uint64, mixDigest []byte) { + dag := pow.getDAG(block.NumberU64()) r := rand.New(rand.NewSource(time.Now().UnixNano())) - miningHash := block.HashNoNonce() diff := block.Difficulty() i := int64(0) starti := i start := time.Now().UnixNano() - nonce := uint64(r.Int63()) - cMiningHash := (*C.ethash_blockhash_t)(unsafe.Pointer(&miningHash[0])) + nonce = uint64(r.Int63()) + hash := hashToH256(block.HashNoNonce()) target := new(big.Int).Div(minDifficulty, diff) - - var ret C.ethash_return_value for { select { case <-stop: - pow.HashRate = 0 - return 0, nil, nil + pow.hashRate = 0 + return 0, nil default: i++ elapsed := time.Now().UnixNano() - start hashes := ((float64(1e9) / float64(elapsed)) * float64(i-starti)) / 1000 - pow.HashRate = int64(hashes) + pow.hashRate = int64(hashes) - C.ethash_full(&ret, pow.dag.dag, pow.dag.paramsAndCache.params, cMiningHash, C.uint64_t(nonce)) - result := common.Bytes2Big(C.GoBytes(unsafe.Pointer(&ret.result), C.int(32))) + ret := C.ethash_full_compute(dag.ptr, hash, C.uint64_t(nonce)) + result := h256ToHash(ret.result).Big() // TODO: disagrees with the spec https://github.com/ethereum/wiki/wiki/Ethash#mining - if result.Cmp(target) <= 0 { - mixDigest := C.GoBytes(unsafe.Pointer(&ret.mix_hash), C.int(32)) - seedHash, err := GetSeedHash(block.NumberU64()) // This seedhash is useless - if err != nil { - panic(err) - } - return nonce, mixDigest, seedHash + if ret.success && result.Cmp(target) <= 0 { + mixDigest = C.GoBytes(unsafe.Pointer(&ret.mix_hash), C.int(32)) + return nonce, mixDigest } - nonce += 1 } @@ -357,82 +296,57 @@ func (pow *Ethash) Search(block pow.Block, stop <-chan struct{}) (uint64, []byte time.Sleep(20 * time.Microsecond) } } - } -func (pow *Ethash) Verify(block pow.Block) bool { - - return pow.verify(block.HashNoNonce(), block.MixDigest(), block.Difficulty(), block.NumberU64(), block.Nonce()) +func (pow *Full) GetHashrate() int64 { + // TODO: this needs to use an atomic operation. + return pow.hashRate } -func (pow *Ethash) verify(hash common.Hash, mixDigest common.Hash, difficulty *big.Int, blockNum uint64, nonce uint64) bool { - // Make sure the block num is valid - if blockNum >= epochLength*2048 { - glog.V(logger.Info).Infoln(fmt.Sprintf("Block number exceeds limit, invalid (value is %v, limit is %v)", - blockNum, epochLength*2048)) - return false - } - - // First check: make sure header, mixDigest, nonce are correct without hitting the cache - // This is to prevent DOS attacks - chash := (*C.ethash_blockhash_t)(unsafe.Pointer(&hash[0])) - cnonce := C.uint64_t(nonce) - target := new(big.Int).Div(minDifficulty, difficulty) - - var pAc *ParamsAndCache - // If its an old block (doesn't use the current cache) - // get the cache for it but don't update (so we don't need the mutex) - // Otherwise, it's the current block or a future block. - // If current, updateCache will do nothing. - if blockNum/epochLength < pow.paramsAndCache.Epoch { - var err error - // If we can't make the params for some reason, this block is invalid - pAc, err = makeParamsAndCache(pow.chainManager, blockNum) - if err != nil { - glog.V(logger.Info).Infoln("big fucking eror", err) - return false - } - } else { - pow.UpdateCache(blockNum, false) - pow.cacheMutex.RLock() - defer pow.cacheMutex.RUnlock() - pAc = pow.paramsAndCache - } - - ret := new(C.ethash_return_value) - - C.ethash_light(ret, pAc.cache, pAc.params, chash, cnonce) +func (pow *Full) Turbo(on bool) { + // TODO: this needs to use an atomic operation. + pow.turbo = on +} - result := common.Bytes2Big(C.GoBytes(unsafe.Pointer(&ret.result), C.int(32))) - return result.Cmp(target) <= 0 +// Ethash combines block verification with Light and +// nonce searching with Full into a single proof of work. +type Ethash struct { + *Light + *Full } -func (pow *Ethash) GetHashrate() int64 { - return pow.HashRate +// New creates an instance of the proof of work. +// A single instance of Light is shared across all instances +// created with New. +func New() *Ethash { + return &Ethash{sharedLight, &Full{turbo: true}} } -func (pow *Ethash) Turbo(on bool) { - pow.turbo = on +// NewForTesting creates a proof of work for use in unit tests. +// It uses a smaller DAG and cache size to keep test times low. +// DAG files are stored in a temporary directory. +// +// Nonces found by a testing instance are not verifiable with a +// regular-size cache. +func NewForTesting() (*Ethash, error) { + dir, err := ioutil.TempDir("", "ethash-test") + if err != nil { + return nil, err + } + return &Ethash{&Light{test: true}, &Full{Dir: dir, test: true}}, nil } -func (pow *Ethash) FullHash(nonce uint64, miningHash []byte) []byte { - pow.UpdateDAG() - pow.dagMutex.Lock() - defer pow.dagMutex.Unlock() - cMiningHash := (*C.ethash_blockhash_t)(unsafe.Pointer(&miningHash[0])) - cnonce := C.uint64_t(nonce) - ret := new(C.ethash_return_value) - // pow.hash is the output/return of ethash_full - C.ethash_full(ret, pow.dag.dag, pow.paramsAndCache.params, cMiningHash, cnonce) - ghash_full := C.GoBytes(unsafe.Pointer(&ret.result), 32) - return ghash_full +func GetSeedHash(blockNum uint64) ([]byte, error) { + if blockNum >= epochLength*2048 { + return nil, fmt.Errorf("block number too high, limit is %d", epochLength*2048) + } + sh := makeSeedHash(blockNum / epochLength) + return sh[:], nil } -func (pow *Ethash) LightHash(nonce uint64, miningHash []byte) []byte { - cMiningHash := (*C.ethash_blockhash_t)(unsafe.Pointer(&miningHash[0])) - cnonce := C.uint64_t(nonce) - ret := new(C.ethash_return_value) - C.ethash_light(ret, pow.paramsAndCache.cache, pow.paramsAndCache.params, cMiningHash, cnonce) - ghash_light := C.GoBytes(unsafe.Pointer(&ret.result), 32) - return ghash_light +func makeSeedHash(epoch uint64) (sh common.Hash) { + for ; epoch > 0; epoch-- { + sh = crypto.Sha3Hash(sh[:]) + } + return sh } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/ethash_test.go b/Godeps/_workspace/src/github.com/ethereum/ethash/ethash_test.go new file mode 100644 index 000000000..42be77b94 --- /dev/null +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/ethash_test.go @@ -0,0 +1,176 @@ +package ethash + +import ( + "bytes" + "crypto/rand" + "encoding/hex" + "log" + "math/big" + "os" + "sync" + "testing" + + "github.com/ethereum/go-ethereum/common" +) + +func init() { + // glog.SetV(6) + // glog.SetToStderr(true) +} + +type testBlock struct { + difficulty *big.Int + hashNoNonce common.Hash + nonce uint64 + mixDigest common.Hash + number uint64 +} + +func (b *testBlock) Difficulty() *big.Int { return b.difficulty } +func (b *testBlock) HashNoNonce() common.Hash { return b.hashNoNonce } +func (b *testBlock) Nonce() uint64 { return b.nonce } +func (b *testBlock) MixDigest() common.Hash { return b.mixDigest } +func (b *testBlock) NumberU64() uint64 { return b.number } + +var validBlocks = []*testBlock{ + // from proof of concept nine testnet, epoch 0 + { + number: 22, + hashNoNonce: common.HexToHash("372eca2454ead349c3df0ab5d00b0b706b23e49d469387db91811cee0358fc6d"), + difficulty: big.NewInt(132416), + nonce: 0x495732e0ed7a801c, + }, + // from proof of concept nine testnet, epoch 1 + { + number: 30001, + hashNoNonce: common.HexToHash("7e44356ee3441623bc72a683fd3708fdf75e971bbe294f33e539eedad4b92b34"), + difficulty: big.NewInt(1532671), + nonce: 0x318df1c8adef7e5e, + }, + // from proof of concept nine testnet, epoch 2 + { + number: 60000, + hashNoNonce: common.HexToHash("5fc898f16035bf5ac9c6d9077ae1e3d5fc1ecc3c9fd5bee8bb00e810fdacbaa0"), + difficulty: big.NewInt(2467358), + nonce: 0x50377003e5d830ca, + }, +} + +func TestEthashVerifyValid(t *testing.T) { + eth := New() + for i, block := range validBlocks { + if !eth.Verify(block) { + t.Errorf("block %d (%x) did not validate.", i, block.hashNoNonce[:6]) + } + } +} + +func TestEthashConcurrentVerify(t *testing.T) { + eth, err := NewForTesting() + if err != nil { + t.Fatal(err) + } + defer os.RemoveAll(eth.Full.Dir) + + block := &testBlock{difficulty: big.NewInt(10)} + nonce, _ := eth.Search(block, nil) + block.nonce = nonce + + // Verify the block concurrently to check for data races. + var wg sync.WaitGroup + wg.Add(100) + for i := 0; i < 100; i++ { + go func() { + if !eth.Verify(block) { + t.Error("Block could not be verified") + } + wg.Done() + }() + } + wg.Wait() +} + +func TestEthashConcurrentSearch(t *testing.T) { + eth, err := NewForTesting() + if err != nil { + t.Fatal(err) + } + eth.Turbo(true) + defer os.RemoveAll(eth.Full.Dir) + + // launch n searches concurrently. + var ( + block = &testBlock{difficulty: big.NewInt(35000)} + nsearch = 10 + wg = new(sync.WaitGroup) + found = make(chan uint64) + stop = make(chan struct{}) + ) + rand.Read(block.hashNoNonce[:]) + wg.Add(nsearch) + for i := 0; i < nsearch; i++ { + go func() { + nonce, _ := eth.Search(block, stop) + select { + case found <- nonce: + case <-stop: + } + wg.Done() + }() + } + + // wait for one of them to find the nonce + nonce := <-found + // stop the others + close(stop) + wg.Wait() + + if block.nonce = nonce; !eth.Verify(block) { + t.Error("Block could not be verified") + } +} + +func TestEthashSearchAcrossEpoch(t *testing.T) { + eth, err := NewForTesting() + if err != nil { + t.Fatal(err) + } + defer os.RemoveAll(eth.Full.Dir) + + for i := epochLength - 40; i < epochLength+40; i++ { + block := &testBlock{number: i, difficulty: big.NewInt(90)} + rand.Read(block.hashNoNonce[:]) + nonce, _ := eth.Search(block, nil) + block.nonce = nonce + if !eth.Verify(block) { + t.Fatalf("Block could not be verified") + } + } +} + +func TestGetSeedHash(t *testing.T) { + seed0, err := GetSeedHash(0) + if err != nil { + t.Errorf("Failed to get seedHash for block 0: %v", err) + } + if bytes.Compare(seed0, make([]byte, 32)) != 0 { + log.Printf("seedHash for block 0 should be 0s, was: %v\n", seed0) + } + seed1, err := GetSeedHash(30000) + if err != nil { + t.Error(err) + } + + // From python: + // > from pyethash import get_seedhash + // > get_seedhash(30000) + expectedSeed1, err := hex.DecodeString("290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563") + if err != nil { + t.Error(err) + } + + if bytes.Compare(seed1, expectedSeed1) != 0 { + log.Printf("seedHash for block 1 should be: %v,\nactual value: %v\n", expectedSeed1, seed1) + } + +} diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/ethashc.go b/Godeps/_workspace/src/github.com/ethereum/ethash/ethashc.go new file mode 100644 index 000000000..25863828f --- /dev/null +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/ethashc.go @@ -0,0 +1,25 @@ +package ethash + +/* +#cgo CFLAGS: -std=gnu99 -Wall +#cgo windows CFLAGS: -mno-stack-arg-probe +#cgo LDFLAGS: -lm + +#include "src/libethash/internal.c" +#include "src/libethash/sha3.c" +#include "src/libethash/io.c" + +#ifdef _WIN32 +# include "src/libethash/util_win32.c" +# include "src/libethash/io_win32.c" +# include "src/libethash/mmap_win32.c" +#else +# include "src/libethash/io_posix.c" +#endif + +// 'gateway function' for calling back into go. +extern int ethashGoCallback(unsigned); +int ethashGoCallback_cgo(unsigned percent) { return ethashGoCallback(percent); } + +*/ +import "C" diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/setup.py b/Godeps/_workspace/src/github.com/ethereum/ethash/setup.py index 6a6b93839..18aa20f6d 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/setup.py +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/setup.py @@ -1,23 +1,36 @@ #!/usr/bin/env python +import os from distutils.core import setup, Extension - +sources = [ + 'src/python/core.c', + 'src/libethash/io.c', + 'src/libethash/internal.c', + 'src/libethash/sha3.c'] +if os.name == 'nt': + sources += [ + 'src/libethash/util_win32.c', + 'src/libethash/io_win32.c', + 'src/libethash/mmap_win32.c', + ] +else: + sources += [ + 'src/libethash/io_posix.c' + ] +depends = [ + 'src/libethash/ethash.h', + 'src/libethash/compiler.h', + 'src/libethash/data_sizes.h', + 'src/libethash/endian.h', + 'src/libethash/ethash.h', + 'src/libethash/io.h', + 'src/libethash/fnv.h', + 'src/libethash/internal.h', + 'src/libethash/sha3.h', + 'src/libethash/util.h', +] pyethash = Extension('pyethash', - sources=[ - 'src/python/core.c', - 'src/libethash/util.c', - 'src/libethash/internal.c', - 'src/libethash/sha3.c'], - depends=[ - 'src/libethash/ethash.h', - 'src/libethash/compiler.h', - 'src/libethash/data_sizes.h', - 'src/libethash/endian.h', - 'src/libethash/ethash.h', - 'src/libethash/fnv.h', - 'src/libethash/internal.h', - 'src/libethash/sha3.h', - 'src/libethash/util.h' - ], + sources=sources, + depends=depends, extra_compile_args=["-Isrc/", "-std=gnu99", "-Wall"]) setup( diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/CMakeLists.txt b/Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/CMakeLists.txt index 840fe5146..3df4ab596 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/CMakeLists.txt +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/CMakeLists.txt @@ -3,56 +3,56 @@ include_directories(..) set(CMAKE_BUILD_TYPE Release) if (MSVC) - add_definitions("/openmp") + add_definitions("/openmp") endif() # enable C++11, should probably be a bit more specific about compiler if (NOT MSVC) - SET(CMAKE_CXX_FLAGS "-std=c++11") + SET(CMAKE_CXX_FLAGS "-std=c++11") endif() if (NOT MPI_FOUND) - find_package(MPI) + find_package(MPI) endif() if (NOT CRYPTOPP_FOUND) - find_package(CryptoPP 5.6.2) + find_package(CryptoPP 5.6.2) endif() if (CRYPTOPP_FOUND) - add_definitions(-DWITH_CRYPTOPP) + add_definitions(-DWITH_CRYPTOPP) + find_package (Threads REQUIRED) endif() if (NOT OpenCL_FOUND) - find_package(OpenCL) + find_package(OpenCL) endif() if (OpenCL_FOUND) - add_definitions(-DWITH_OPENCL) - include_directories(${OpenCL_INCLUDE_DIRS}) - list(APPEND FILES ethash_cl_miner.cpp ethash_cl_miner.h) + add_definitions(-DWITH_OPENCL) + include_directories(${OpenCL_INCLUDE_DIRS}) + list(APPEND FILES ethash_cl_miner.cpp ethash_cl_miner.h) endif() if (MPI_FOUND) - include_directories(${MPI_INCLUDE_PATH}) - add_executable (Benchmark_MPI_FULL benchmark.cpp) - target_link_libraries (Benchmark_MPI_FULL ${ETHHASH_LIBS} ${MPI_LIBRARIES}) - SET_TARGET_PROPERTIES(Benchmark_MPI_FULL PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} ${MPI_COMPILE_FLAGS} -DFULL -DMPI") + include_directories(${MPI_INCLUDE_PATH}) + add_executable (Benchmark_MPI_FULL benchmark.cpp) + target_link_libraries (Benchmark_MPI_FULL ${ETHHASH_LIBS} ${MPI_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT}) + SET_TARGET_PROPERTIES(Benchmark_MPI_FULL PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} ${MPI_COMPILE_FLAGS} -DFULL -DMPI") - add_executable (Benchmark_MPI_LIGHT benchmark.cpp) - target_link_libraries (Benchmark_MPI_LIGHT ${ETHHASH_LIBS} ${MPI_LIBRARIES}) - SET_TARGET_PROPERTIES(Benchmark_MPI_LIGHT PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} ${MPI_COMPILE_FLAGS} -DMPI") + add_executable (Benchmark_MPI_LIGHT benchmark.cpp) + target_link_libraries (Benchmark_MPI_LIGHT ${ETHHASH_LIBS} ${MPI_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT}) + SET_TARGET_PROPERTIES(Benchmark_MPI_LIGHT PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} ${MPI_COMPILE_FLAGS} -DMPI") endif() add_executable (Benchmark_FULL benchmark.cpp) -target_link_libraries (Benchmark_FULL ${ETHHASH_LIBS}) +target_link_libraries (Benchmark_FULL ${ETHHASH_LIBS} ${CMAKE_THREAD_LIBS_INIT}) SET_TARGET_PROPERTIES(Benchmark_FULL PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -DFULL") add_executable (Benchmark_LIGHT benchmark.cpp) -target_link_libraries (Benchmark_LIGHT ${ETHHASH_LIBS}) +target_link_libraries (Benchmark_LIGHT ${ETHHASH_LIBS} ${CMAKE_THREAD_LIBS_INIT}) if (OpenCL_FOUND) - add_executable (Benchmark_CL benchmark.cpp) - target_link_libraries (Benchmark_CL ${ETHHASH_LIBS} ethash-cl) - SET_TARGET_PROPERTIES(Benchmark_CL PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -DOPENCL") -endif() - + add_executable (Benchmark_CL benchmark.cpp) + target_link_libraries (Benchmark_CL ${ETHHASH_LIBS} ethash-cl ${CMAKE_THREAD_LIBS_INIT}) + SET_TARGET_PROPERTIES(Benchmark_CL PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -DOPENCL") +endif()
\ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/benchmark.cpp b/Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/benchmark.cpp index 2635c8038..1a648edf4 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/benchmark.cpp +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/benchmark.cpp @@ -96,6 +96,11 @@ static std::string bytesToHexString(uint8_t const* bytes, unsigned size) return str; } +static std::string bytesToHexString(ethash_h256_t const *hash, unsigned size) +{ + return bytesToHexString((uint8_t*)hash, size); +} + extern "C" int main(void) { // params for ethash @@ -106,12 +111,12 @@ extern "C" int main(void) //params.full_size = 8209 * 4096; // 8MBish; //params.cache_size = 8209*4096; //params.cache_size = 2053*4096; - ethash_blockhash_t seed; - ethash_blockhash_t previous_hash; + ethash_h256_t seed; + ethash_h256_t previous_hash; memcpy(&seed, hexStringToBytes("9410b944535a83d9adf6bbdcc80e051f30676173c16ca0d32d6f1263fc246466").data(), 32); memcpy(&previous_hash, hexStringToBytes("c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470").data(), 32); - + // allocate page aligned buffer for dataset #ifdef FULL void* full_mem_buf = malloc(params.full_size + 4095); @@ -122,24 +127,24 @@ extern "C" int main(void) ethash_cache cache; cache.mem = cache_mem; - + // compute cache or full data { auto startTime = high_resolution_clock::now(); - ethash_mkcache(&cache, ¶ms, seed); + ethash_mkcache(&cache, ¶ms, &seed); auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count(); - ethash_blockhash_t cache_hash; + ethash_h256_t cache_hash; SHA3_256(&cache_hash, (uint8_t const*)cache_mem, params.cache_size); - debugf("ethash_mkcache: %ums, sha3: %s\n", (unsigned)((time*1000)/CLOCKS_PER_SEC), bytesToHexString(cache_hash,sizeof(cache_hash)).data()); + debugf("ethash_mkcache: %ums, sha3: %s\n", (unsigned)((time*1000)/CLOCKS_PER_SEC), bytesToHexString(&cache_hash, sizeof(cache_hash)).data()); // print a couple of test hashes { auto startTime = high_resolution_clock::now(); ethash_return_value hash; - ethash_light(&hash, &cache, ¶ms, previous_hash, 0); + ethash_light(&hash, &cache, ¶ms, &previous_hash, 0); auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count(); - debugf("ethash_light test: %ums, %s\n", (unsigned)time, bytesToHexString(hash.result, 32).data()); + debugf("ethash_light test: %ums, %s\n", (unsigned)time, bytesToHexString(&hash.result, 32).data()); } #ifdef FULL @@ -154,34 +159,34 @@ extern "C" int main(void) ethash_cl_miner miner; { auto startTime = high_resolution_clock::now(); - if (!miner.init(params, seed)) + if (!miner.init(params, &seed)) exit(-1); auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count(); - debugf("ethash_cl_miner init: %ums\n", (unsigned)time); + debugf("ethash_cl_miner init: %ums\n", (unsigned)time); } #endif #ifdef FULL - { - auto startTime = high_resolution_clock::now(); + { + auto startTime = high_resolution_clock::now(); ethash_return_value hash; - ethash_full(&hash, full_mem, ¶ms, previous_hash, 0); - auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count(); - debugf("ethash_full test: %uns, %s\n", (unsigned)time); - } + ethash_full(&hash, full_mem, ¶ms, &previous_hash, 0); + auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count(); + debugf("ethash_full test: %uns\n", (unsigned)time); + } #endif #ifdef OPENCL // validate 1024 hashes against CPU - miner.hash(g_hashes, previous_hash, 0, 1024); + miner.hash(g_hashes, (uint8_t*)&previous_hash, 0, 1024); for (unsigned i = 0; i != 1024; ++i) { ethash_return_value hash; - ethash_light(&hash, &cache, ¶ms, previous_hash, i); - if (memcmp(hash.result, g_hashes + 32*i, 32) != 0) + ethash_light(&hash, &cache, ¶ms, &previous_hash, i); + if (memcmp(&hash.result, g_hashes + 32*i, 32) != 0) { - debugf("nonce %u failed: %s %s\n", i, bytesToHexString(g_hashes + 32*i, 32).c_str(), bytesToHexString(hash.result, 32).c_str()); + debugf("nonce %u failed: %s %s\n", i, bytesToHexString(g_hashes + 32*i, 32).c_str(), bytesToHexString(&hash.result, 32).c_str()); static unsigned c = 0; if (++c == 16) { @@ -189,14 +194,14 @@ extern "C" int main(void) } } } - + // ensure nothing else is going on miner.finish(); #endif auto startTime = high_resolution_clock::now(); unsigned hash_count = trials; - + #ifdef OPENCL { struct search_hook : ethash_cl_miner::search_hook @@ -220,14 +225,14 @@ extern "C" int main(void) search_hook hook; hook.hash_count = 0; - miner.search(previous_hash, 0x000000ffffffffff, hook); + miner.search((uint8_t*)&previous_hash, 0x000000ffffffffff, hook); for (unsigned i = 0; i != hook.nonce_vec.size(); ++i) { uint64_t nonce = hook.nonce_vec[i]; ethash_return_value hash; - ethash_light(&hash, &cache, ¶ms, previous_hash, nonce); - debugf("found: %.8x%.8x -> %s\n", unsigned(nonce>>32), unsigned(nonce), bytesToHexString(hash.result, 32).c_str()); + ethash_light(&hash, &cache, ¶ms, &previous_hash, nonce); + debugf("found: %.8x%.8x -> %s\n", unsigned(nonce>>32), unsigned(nonce), bytesToHexString(&hash.result, 32).c_str()); } hash_count = hook.hash_count; @@ -239,9 +244,9 @@ extern "C" int main(void) { ethash_return_value hash; #ifdef FULL - ethash_full(&hash, full_mem, ¶ms, previous_hash, nonce); + ethash_full(&hash, full_mem, ¶ms, &previous_hash, nonce); #else - ethash_light(&hash, &cache, ¶ms, previous_hash, nonce); + ethash_light(&hash, &cache, ¶ms, &previous_hash, nonce); #endif // FULL } } @@ -249,7 +254,7 @@ extern "C" int main(void) auto time = std::chrono::duration_cast<std::chrono::microseconds>(high_resolution_clock::now() - startTime).count(); debugf("Search took: %ums\n", (unsigned)time/1000); - unsigned read_size = ACCESSES * MIX_BYTES; + unsigned read_size = ETHASH_ACCESSES * ETHASH_MIX_BYTES; #if defined(OPENCL) || defined(FULL) debugf( "hashrate: %8.2f Mh/s, bw: %8.2f GB/s\n", diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/CMakeLists.txt b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/CMakeLists.txt index 30fa7ed4b..3cfe1644d 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/CMakeLists.txt +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/CMakeLists.txt @@ -13,7 +13,7 @@ if (NOT MSVC) set(CMAKE_CXX_FLAGS "-Wall -std=c++11") set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g") set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os -DNDEBUG") - set(CMAKE_CXX_FLAGS_RELEASE "-O4 -DNDEBUG") + set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG") set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g") # Compiler-specific C++11 activation. diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.cpp b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.cpp index bf7bb2128..65f15d7ca 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.cpp +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.cpp @@ -24,12 +24,15 @@ #include <cstdio> #include <cstdlib> +#include <iostream> #include <assert.h> #include <queue> #include <vector> +#include <libethash/util.h> +#include <libethash/ethash.h> +#include <libethash/internal.h> #include "ethash_cl_miner.h" #include "ethash_cl_miner_kernel.h" -#include <libethash/util.h> #define ETHASH_BYTES 32 @@ -42,6 +45,8 @@ #undef min #undef max +using namespace std; + static void add_definition(std::string& source, char const* id, unsigned value) { char buf[256]; @@ -49,52 +54,108 @@ static void add_definition(std::string& source, char const* id, unsigned value) source.insert(source.begin(), buf, buf + strlen(buf)); } +ethash_cl_miner::search_hook::~search_hook() {} + ethash_cl_miner::ethash_cl_miner() : m_opencl_1_1() { } -bool ethash_cl_miner::init(ethash_params const& params, ethash_blockhash_t const *seed, unsigned workgroup_size) +std::string ethash_cl_miner::platform_info(unsigned _platformId, unsigned _deviceId) +{ + std::vector<cl::Platform> platforms; + cl::Platform::get(&platforms); + if (platforms.empty()) + { + cout << "No OpenCL platforms found." << endl; + return std::string(); + } + + // get GPU device of the selected platform + std::vector<cl::Device> devices; + unsigned platform_num = std::min<unsigned>(_platformId, platforms.size() - 1); + platforms[platform_num].getDevices(CL_DEVICE_TYPE_ALL, &devices); + if (devices.empty()) + { + cout << "No OpenCL devices found." << endl; + return std::string(); + } + + // use selected default device + unsigned device_num = std::min<unsigned>(_deviceId, devices.size() - 1); + cl::Device& device = devices[device_num]; + std::string device_version = device.getInfo<CL_DEVICE_VERSION>(); + + return "{ \"platform\": \"" + platforms[platform_num].getInfo<CL_PLATFORM_NAME>() + "\", \"device\": \"" + device.getInfo<CL_DEVICE_NAME>() + "\", \"version\": \"" + device_version + "\" }"; +} + +unsigned ethash_cl_miner::get_num_devices(unsigned _platformId) +{ + std::vector<cl::Platform> platforms; + cl::Platform::get(&platforms); + if (platforms.empty()) + { + cout << "No OpenCL platforms found." << endl; + return 0; + } + + std::vector<cl::Device> devices; + unsigned platform_num = std::min<unsigned>(_platformId, platforms.size() - 1); + platforms[platform_num].getDevices(CL_DEVICE_TYPE_ALL, &devices); + if (devices.empty()) + { + cout << "No OpenCL devices found." << endl; + return 0; + } + return devices.size(); +} + +void ethash_cl_miner::finish() +{ + if (m_queue()) + m_queue.finish(); +} + +bool ethash_cl_miner::init(uint64_t block_number, std::function<void(void*)> _fillDAG, unsigned workgroup_size, unsigned _platformId, unsigned _deviceId) { // store params - m_params = params; + m_fullSize = ethash_get_datasize(block_number); // get all platforms - std::vector<cl::Platform> platforms; - cl::Platform::get(&platforms); + std::vector<cl::Platform> platforms; + cl::Platform::get(&platforms); if (platforms.empty()) { - debugf("No OpenCL platforms found.\n"); + cout << "No OpenCL platforms found." << endl; return false; } - // use default platform - debugf("Using platform: %s\n", platforms[0].getInfo<CL_PLATFORM_NAME>().c_str()); + // use selected platform + _platformId = std::min<unsigned>(_platformId, platforms.size() - 1); - // get GPU device of the default platform - std::vector<cl::Device> devices; - platforms[0].getDevices(CL_DEVICE_TYPE_ALL, &devices); - if (devices.empty()) + cout << "Using platform: " << platforms[_platformId].getInfo<CL_PLATFORM_NAME>().c_str() << endl; + + // get GPU device of the default platform + std::vector<cl::Device> devices; + platforms[_platformId].getDevices(CL_DEVICE_TYPE_ALL, &devices); + if (devices.empty()) { - debugf("No OpenCL devices found.\n"); + cout << "No OpenCL devices found." << endl; return false; } - // use default device - unsigned device_num = 0; - cl::Device& device = devices[device_num]; + // use selected device + cl::Device& device = devices[std::min<unsigned>(_deviceId, devices.size() - 1)]; std::string device_version = device.getInfo<CL_DEVICE_VERSION>(); - debugf("Using device: %s (%s)\n", device.getInfo<CL_DEVICE_NAME>().c_str(),device_version.c_str()); + cout << "Using device: " << device.getInfo<CL_DEVICE_NAME>().c_str() << "(" << device_version.c_str() << ")" << endl; if (strncmp("OpenCL 1.0", device_version.c_str(), 10) == 0) { - debugf("OpenCL 1.0 is not supported.\n"); + cout << "OpenCL 1.0 is not supported." << endl; return false; } if (strncmp("OpenCL 1.1", device_version.c_str(), 10) == 0) - { m_opencl_1_1 = true; - } // create context m_context = cl::Context(std::vector<cl::Device>(&device, &device + 1)); @@ -106,8 +167,8 @@ bool ethash_cl_miner::init(ethash_params const& params, ethash_blockhash_t const // patch source code std::string code(ETHASH_CL_MINER_KERNEL, ETHASH_CL_MINER_KERNEL + ETHASH_CL_MINER_KERNEL_SIZE); add_definition(code, "GROUP_SIZE", m_workgroup_size); - add_definition(code, "DAG_SIZE", (unsigned)(params.full_size / MIX_BYTES)); - add_definition(code, "ACCESSES", ACCESSES); + add_definition(code, "DAG_SIZE", (unsigned)(m_fullSize / ETHASH_MIX_BYTES)); + add_definition(code, "ACCESSES", ETHASH_ACCESSES); add_definition(code, "MAX_OUTPUTS", c_max_search_results); //debugf("%s", code.c_str()); @@ -122,31 +183,25 @@ bool ethash_cl_miner::init(ethash_params const& params, ethash_blockhash_t const } catch (cl::Error err) { - debugf("%s\n", program.getBuildInfo<CL_PROGRAM_BUILD_LOG>(device).c_str()); + cout << program.getBuildInfo<CL_PROGRAM_BUILD_LOG>(device).c_str(); return false; } m_hash_kernel = cl::Kernel(program, "ethash_hash"); m_search_kernel = cl::Kernel(program, "ethash_search"); // create buffer for dag - m_dag = cl::Buffer(m_context, CL_MEM_READ_ONLY, params.full_size); - + m_dag = cl::Buffer(m_context, CL_MEM_READ_ONLY, m_fullSize); + // create buffer for header m_header = cl::Buffer(m_context, CL_MEM_READ_ONLY, 32); // compute dag on CPU { - void* cache_mem = malloc(params.cache_size + 63); - ethash_cache cache; - cache.mem = (void*)(((uintptr_t)cache_mem + 63) & ~63); - ethash_mkcache(&cache, ¶ms, seed); - // if this throws then it's because we probably need to subdivide the dag uploads for compatibility - void* dag_ptr = m_queue.enqueueMapBuffer(m_dag, true, m_opencl_1_1 ? CL_MAP_WRITE : CL_MAP_WRITE_INVALIDATE_REGION, 0, params.full_size); - ethash_compute_full_data(dag_ptr, ¶ms, &cache); + void* dag_ptr = m_queue.enqueueMapBuffer(m_dag, true, m_opencl_1_1 ? CL_MAP_WRITE : CL_MAP_WRITE_INVALIDATE_REGION, 0, m_fullSize); + // memcpying 1GB: horrible... really. horrible. but necessary since we can't mmap *and* gpumap. + _fillDAG(dag_ptr); m_queue.enqueueUnmapMemObject(m_dag, dag_ptr); - - free(cache_mem); } // create mining buffers @@ -167,7 +222,7 @@ void ethash_cl_miner::hash(uint8_t* ret, uint8_t const* header, uint64_t nonce, unsigned buf; }; std::queue<pending_batch> pending; - + // update header constant buffer m_queue.enqueueWriteBuffer(m_header, true, 0, 32, header); @@ -191,8 +246,8 @@ void ethash_cl_miner::hash(uint8_t* ret, uint8_t const* header, uint64_t nonce, // how many this batch if (i < count) { - unsigned const this_count = std::min(count - i, c_hash_batch_size); - unsigned const batch_count = std::max(this_count, m_workgroup_size); + unsigned const this_count = std::min<unsigned>(count - i, c_hash_batch_size); + unsigned const batch_count = std::max<unsigned>(this_count, m_workgroup_size); // supply output hash buffer to kernel m_hash_kernel.setArg(0, m_hash_buf[buf]); @@ -205,7 +260,7 @@ void ethash_cl_miner::hash(uint8_t* ret, uint8_t const* header, uint64_t nonce, cl::NDRange(m_workgroup_size) ); m_queue.flush(); - + pending.push({i, this_count, buf}); i += this_count; buf = (buf + 1) % c_num_buffers; @@ -245,7 +300,7 @@ void ethash_cl_miner::search(uint8_t const* header, uint64_t target, search_hook m_queue.enqueueWriteBuffer(m_search_buf[i], false, 0, 4, &c_zero); } -#if CL_VERSION_1_2 +#if CL_VERSION_1_2 && 0 cl::Event pre_return_event; if (!m_opencl_1_1) { @@ -284,7 +339,7 @@ void ethash_cl_miner::search(uint8_t const* header, uint64_t target, search_hook // execute it! m_queue.enqueueNDRangeKernel(m_search_kernel, cl::NullRange, c_search_batch_size, m_workgroup_size); - + pending.push({start_nonce, buf}); buf = (buf + 1) % c_num_buffers; @@ -295,16 +350,16 @@ void ethash_cl_miner::search(uint8_t const* header, uint64_t target, search_hook // could use pinned host pointer instead uint32_t* results = (uint32_t*)m_queue.enqueueMapBuffer(m_search_buf[batch.buf], true, CL_MAP_READ, 0, (1+c_max_search_results) * sizeof(uint32_t)); - unsigned num_found = std::min(results[0], c_max_search_results); + unsigned num_found = std::min<unsigned>(results[0], c_max_search_results); uint64_t nonces[c_max_search_results]; for (unsigned i = 0; i != num_found; ++i) { nonces[i] = batch.start_nonce + results[i+1]; } - + m_queue.enqueueUnmapMemObject(m_search_buf[batch.buf], results); - + bool exit = num_found && hook.found(nonces, num_found); exit |= hook.searched(batch.start_nonce, c_search_batch_size); // always report searched before exit if (exit) @@ -319,7 +374,7 @@ void ethash_cl_miner::search(uint8_t const* header, uint64_t target, search_hook } // not safe to return until this is ready -#if CL_VERSION_1_2 +#if CL_VERSION_1_2 && 0 if (!m_opencl_1_1) { pre_return_event.wait(); diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.h index af614b3e4..23868b2c7 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.h @@ -1,9 +1,19 @@ #pragma once -#define __CL_ENABLE_EXCEPTIONS +#define __CL_ENABLE_EXCEPTIONS #define CL_USE_DEPRECATED_OPENCL_2_0_APIS + +#if defined(__clang__) +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wunused-parameter" +#include "cl.hpp" +#pragma clang diagnostic pop +#else #include "cl.hpp" +#endif + #include <time.h> +#include <functional> #include <libethash/ethash.h> class ethash_cl_miner @@ -11,6 +21,8 @@ class ethash_cl_miner public: struct search_hook { + virtual ~search_hook(); // always a virtual destructor for a class with virtuals. + // reports progress, return true to abort virtual bool found(uint64_t const* nonces, uint32_t count) = 0; virtual bool searched(uint64_t start_nonce, uint32_t count) = 0; @@ -19,19 +31,19 @@ public: public: ethash_cl_miner(); - bool init(ethash_params const& params, ethash_blockhash_t const *seed, unsigned workgroup_size = 64); + bool init(uint64_t block_number, std::function<void(void*)> _fillDAG, unsigned workgroup_size = 64, unsigned _platformId = 0, unsigned _deviceId = 0); + static std::string platform_info(unsigned _platformId = 0, unsigned _deviceId = 0); + static unsigned get_num_devices(unsigned _platformId = 0); + void finish(); void hash(uint8_t* ret, uint8_t const* header, uint64_t nonce, unsigned count); void search(uint8_t const* header, uint64_t target, search_hook& hook); private: - static unsigned const c_max_search_results = 63; - static unsigned const c_num_buffers = 2; - static unsigned const c_hash_batch_size = 1024; - static unsigned const c_search_batch_size = 1024*256; + enum { c_max_search_results = 63, c_num_buffers = 2, c_hash_batch_size = 1024, c_search_batch_size = 1024*256 }; - ethash_params m_params; + uint64_t m_fullSize; cl::Context m_context; cl::CommandQueue m_queue; cl::Kernel m_hash_kernel; diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner_kernel.cl b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner_kernel.cl index ee21a331e..3c8b9dc92 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner_kernel.cl +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner_kernel.cl @@ -415,8 +415,7 @@ __kernel void ethash_search_simple( { uint const gid = get_global_id(0); hash32_t hash = compute_hash_simple(g_header, g_dag, start_nonce + gid, isolate); - - if (hash.ulongs[countof(hash.ulongs)-1] < target) + if (as_ulong(as_uchar8(hash.ulongs[0]).s76543210) < target) { uint slot = min(MAX_OUTPUTS, atomic_inc(&g_output[0]) + 1); g_output[slot] = gid; @@ -453,7 +452,7 @@ __kernel void ethash_search( uint const gid = get_global_id(0); hash32_t hash = compute_hash(share, g_header, g_dag, start_nonce + gid, isolate); - if (hash.ulongs[countof(hash.ulongs)-1] < target) + if (as_ulong(as_uchar8(hash.ulongs[0]).s76543210) < target) { uint slot = min(MAX_OUTPUTS, atomic_inc(&g_output[0]) + 1); g_output[slot] = gid; diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/CMakeLists.txt b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/CMakeLists.txt index c92240086..a65621c3e 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/CMakeLists.txt +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/CMakeLists.txt @@ -10,8 +10,7 @@ if (NOT MSVC) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99") endif() -set(FILES util.c - util.h +set(FILES util.h io.c internal.c ethash.h @@ -21,7 +20,7 @@ set(FILES util.c data_sizes.h) if (MSVC) - list(APPEND FILES io_win32.c) + list(APPEND FILES util_win32.c io_win32.c mmap_win32.c) else() list(APPEND FILES io_posix.c) endif() diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h index cf52ae4f8..83cc30bcb 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h @@ -49,416 +49,416 @@ extern "C" { static const uint64_t dag_sizes[2048] = { - 1073739904U, 1082130304U, 1090514816U, 1098906752U, 1107293056U, - 1115684224U, 1124070016U, 1132461952U, 1140849536U, 1149232768U, - 1157627776U, 1166013824U, 1174404736U, 1182786944U, 1191180416U, - 1199568512U, 1207958912U, 1216345216U, 1224732032U, 1233124736U, - 1241513344U, 1249902464U, 1258290304U, 1266673792U, 1275067264U, - 1283453312U, 1291844992U, 1300234112U, 1308619904U, 1317010048U, - 1325397376U, 1333787776U, 1342176128U, 1350561664U, 1358954368U, - 1367339392U, 1375731584U, 1384118144U, 1392507008U, 1400897408U, - 1409284736U, 1417673344U, 1426062464U, 1434451072U, 1442839168U, - 1451229056U, 1459615616U, 1468006016U, 1476394112U, 1484782976U, - 1493171584U, 1501559168U, 1509948032U, 1518337664U, 1526726528U, - 1535114624U, 1543503488U, 1551892096U, 1560278656U, 1568669056U, - 1577056384U, 1585446272U, 1593831296U, 1602219392U, 1610610304U, - 1619000192U, 1627386752U, 1635773824U, 1644164224U, 1652555648U, - 1660943488U, 1669332608U, 1677721216U, 1686109312U, 1694497664U, - 1702886272U, 1711274624U, 1719661184U, 1728047744U, 1736434816U, - 1744829056U, 1753218944U, 1761606272U, 1769995904U, 1778382464U, - 1786772864U, 1795157888U, 1803550592U, 1811937664U, 1820327552U, - 1828711552U, 1837102976U, 1845488768U, 1853879936U, 1862269312U, - 1870656896U, 1879048064U, 1887431552U, 1895825024U, 1904212096U, - 1912601216U, 1920988544U, 1929379456U, 1937765504U, 1946156672U, - 1954543232U, 1962932096U, 1971321728U, 1979707264U, 1988093056U, - 1996487552U, 2004874624U, 2013262208U, 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17825785984U, 17834178944U, 17842563968U, + 17850955648U, 17859344512U, 17867732864U, 17876119424U, 17884511872U, + 17892900224U, 17901287296U, 17909677696U, 17918058112U, 17926451072U, + 17934843776U, 17943230848U, 17951609216U, 17960008576U, 17968397696U, + 17976784256U, 17985175424U, 17993564032U, 18001952128U, 18010339712U, + 18018728576U, 18027116672U, 18035503232U, 18043894144U, 18052283264U, + 18060672128U, 18069056384U, 18077449856U, 18085837184U, 18094225792U, + 18102613376U, 18111004544U, 18119388544U, 18127781248U, 18136170368U, + 18144558976U, 18152947328U, 18161336192U, 18169724288U, 18178108544U, + 18186498944U, 18194886784U, 18203275648U, 18211666048U, 18220048768U, + 18228444544U, 18236833408U, 18245220736U }; @@ -478,335 +478,335 @@ static const uint64_t dag_sizes[2048] = { // Sow[i*HashBytes]; j++]]]][[2]][[1]] const uint64_t cache_sizes[2048] = { - 16776896U, 16907456U, 17039296U, 17170112U, 17301056U, 17432512U, 17563072U, - 17693888U, 17824192U, 17955904U, 18087488U, 18218176U, 18349504U, 18481088U, - 18611392U, 18742336U, 18874304U, 19004224U, 19135936U, 19267264U, 19398208U, - 19529408U, 19660096U, 19791424U, 19922752U, 20053952U, 20184896U, 20315968U, - 20446912U, 20576576U, 20709184U, 20840384U, 20971072U, 21102272U, 21233216U, - 21364544U, 21494848U, 21626816U, 21757376U, 21887552U, 22019392U, 22151104U, - 22281536U, 22412224U, 22543936U, 22675264U, 22806464U, 22935872U, 23068096U, - 23198272U, 23330752U, 23459008U, 23592512U, 23723968U, 23854912U, 23986112U, - 24116672U, 24247616U, 24378688U, 24509504U, 24640832U, 24772544U, 24903488U, - 25034432U, 25165376U, 25296704U, 25427392U, 25558592U, 25690048U, 25820096U, - 25951936U, 26081728U, 26214208U, 26345024U, 26476096U, 26606656U, 26737472U, - 26869184U, 26998208U, 27131584U, 27262528U, 27393728U, 27523904U, 27655744U, - 27786688U, 27917888U, 28049344U, 28179904U, 28311488U, 28441792U, 28573504U, - 28700864U, 28835648U, 28966208U, 29096768U, 29228608U, 29359808U, 29490752U, - 29621824U, 29752256U, 29882816U, 30014912U, 30144448U, 30273728U, 30406976U, - 30538432U, 30670784U, 30799936U, 30932672U, 31063744U, 31195072U, 31325248U, - 31456192U, 31588288U, 31719232U, 31850432U, 31981504U, 32110784U, 32243392U, - 32372672U, 32505664U, 32636608U, 32767808U, 32897344U, 33029824U, 33160768U, - 33289664U, 33423296U, 33554368U, 33683648U, 33816512U, 33947456U, 34076992U, - 34208704U, 34340032U, 34471744U, 34600256U, 34734016U, 34864576U, 34993984U, - 35127104U, 35258176U, 35386688U, 35518528U, 35650624U, 35782336U, 35910976U, - 36044608U, 36175808U, 36305728U, 36436672U, 36568384U, 36699968U, 36830656U, - 36961984U, 37093312U, 37223488U, 37355072U, 37486528U, 37617472U, 37747904U, - 37879232U, 38009792U, 38141888U, 38272448U, 38403392U, 38535104U, 38660672U, - 38795584U, 38925632U, 39059264U, 39190336U, 39320768U, 39452096U, 39581632U, - 39713984U, 39844928U, 39974848U, 40107968U, 40238144U, 40367168U, 40500032U, - 40631744U, 40762816U, 40894144U, 41023552U, 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251133632U, 251263552U, 251395136U, 251523904U, 251657792U, 251789248U, + 251919424U, 252051392U, 252182464U, 252313408U, 252444224U, 252575552U, + 252706624U, 252836032U, 252968512U, 253099712U, 253227584U, 253361728U, + 253493056U, 253623488U, 253754432U, 253885504U, 254017216U, 254148032U, + 254279488U, 254410432U, 254541376U, 254672576U, 254803264U, 254933824U, + 255065792U, 255196736U, 255326528U, 255458752U, 255589952U, 255721408U, + 255851072U, 255983296U, 256114624U, 256244416U, 256374208U, 256507712U, + 256636096U, 256768832U, 256900544U, 257031616U, 257162176U, 257294272U, + 257424448U, 257555776U, 257686976U, 257818432U, 257949632U, 258079552U, + 258211136U, 258342464U, 258473408U, 258603712U, 258734656U, 258867008U, + 258996544U, 259127744U, 259260224U, 259391296U, 259522112U, 259651904U, + 259784384U, 259915328U, 260045888U, 260175424U, 260308544U, 260438336U, + 260570944U, 260700992U, 260832448U, 260963776U, 261092672U, 261226304U, + 261356864U, 261487936U, 261619648U, 261750592U, 261879872U, 262011968U, + 262143424U, 262274752U, 262404416U, 262537024U, 262667968U, 262799296U, + 262928704U, 263061184U, 263191744U, 263322944U, 263454656U, 263585216U, + 263716672U, 263847872U, 263978944U, 264108608U, 264241088U, 264371648U, + 264501184U, 264632768U, 264764096U, 264895936U, 265024576U, 265158464U, + 265287488U, 265418432U, 265550528U, 265681216U, 265813312U, 265943488U, + 266075968U, 266206144U, 266337728U, 266468032U, 266600384U, 266731072U, + 266862272U, 266993344U, 267124288U, 267255616U, 267386432U, 267516992U, + 267648704U, 267777728U, 267910592U, 268040512U, 268172096U, 268302784U, + 268435264U, 268566208U, 268696256U, 268828096U, 268959296U, 269090368U, + 269221312U, 269352256U, 269482688U, 269614784U, 269745856U, 269876416U, + 270007616U, 270139328U, 270270272U, 270401216U, 270531904U, 270663616U, + 270791744U, 270924736U, 271056832U, 271186112U, 271317184U, 271449536U, + 271580992U, 271711936U, 271843136U, 271973056U, 272105408U, 272236352U, + 272367296U, 272498368U, 272629568U, 272759488U, 272891456U, 273022784U, + 273153856U, 273284672U, 273415616U, 273547072U, 273677632U, 273808448U, + 273937088U, 274071488U, 274200896U, 274332992U, 274463296U, 274595392U, + 274726208U, 274857536U, 274988992U, 275118656U, 275250496U, 275382208U, + 275513024U, 275643968U, 275775296U, 275906368U, 276037184U, 276167872U, + 276297664U, 276429376U, 276560576U, 276692672U, 276822976U, 276955072U, + 277085632U, 277216832U, 277347008U, 277478848U, 277609664U, 277740992U, + 277868608U, 278002624U, 278134336U, 278265536U, 278395328U, 278526784U, + 278657728U, 278789824U, 278921152U, 279052096U, 279182912U, 279313088U, + 279443776U, 279576256U, 279706048U, 279838528U, 279969728U, 280099648U, + 280230976U, 280361408U, 280493632U, 280622528U, 280755392U, 280887104U, + 281018176U, 281147968U, 281278912U, 281411392U, 281542592U, 281673152U, + 281803712U, 281935552U, 282066496U, 282197312U, 282329024U, 282458816U, + 282590272U, 282720832U, 282853184U, 282983744U, 283115072U, 283246144U, + 283377344U, 283508416U, 283639744U, 283770304U, 283901504U, 284032576U, + 284163136U, 284294848U, 284426176U, 284556992U, 284687296U, 284819264U, + 284950208U, 285081536U }; #ifdef __cplusplus } -#endif
\ No newline at end of file +#endif diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/endian.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/endian.h index 9ca842e47..0ee402d9a 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/endian.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/endian.h @@ -3,38 +3,6 @@ #include <stdint.h> #include "compiler.h" -static const uint8_t BitReverseTable256[] = - { - 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, - 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, - 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, - 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, - 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, - 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, - 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6, - 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, - 0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1, - 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9, - 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, - 0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD, - 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, - 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, - 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, - 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF - }; - -static inline uint32_t bitfn_swap32(uint32_t a) { - return (BitReverseTable256[a & 0xff] << 24) | - (BitReverseTable256[(a >> 8) & 0xff] << 16) | - (BitReverseTable256[(a >> 16) & 0xff] << 8) | - (BitReverseTable256[(a >> 24) & 0xff]); -} - -static inline uint64_t bitfn_swap64(uint64_t a) { - return ((uint64_t) bitfn_swap32((uint32_t) (a >> 32))) | - (((uint64_t) bitfn_swap32((uint32_t) a)) << 32); -} - #if defined(__MINGW32__) || defined(_WIN32) # define LITTLE_ENDIAN 1234 # define BYTE_ORDER LITTLE_ENDIAN @@ -53,22 +21,52 @@ static inline uint64_t bitfn_swap64(uint64_t a) { # define BIG_ENDIAN 1234 # define BYTE_ORDER BIG_ENDIAN #else - # include <endian.h> +#endif +#if defined(_WIN32) +#include <stdlib.h> +#define ethash_swap_u32(input_) _byteswap_ulong(input_) +#define ethash_swap_u64(input_) _byteswap_uint64(input_) +#elif defined(__APPLE__) +#include <libkern/OSByteOrder.h> +#define ethash_swap_u32(input_) OSSwapInt32(input_) +#define ethash_swap_u64(input_) OSSwapInt64(input_) +#else // posix +#include <byteswap.h> +#define ethash_swap_u32(input_) __bswap_32(input_) +#define ethash_swap_u64(input_) __bswap_64(input_) #endif #if LITTLE_ENDIAN == BYTE_ORDER -#define fix_endian32(x) (x) -#define fix_endian64(x) (x) +#define fix_endian32(dst_ ,src_) dst_ = src_ +#define fix_endian32_same(val_) +#define fix_endian64(dst_, src_) dst_ = src_ +#define fix_endian64_same(val_) +#define fix_endian_arr32(arr_, size_) +#define fix_endian_arr64(arr_, size_) #elif BIG_ENDIAN == BYTE_ORDER -#define fix_endian32(x) bitfn_swap32(x) -#define fix_endian64(x) bitfn_swap64(x) +#define fix_endian32(dst_, src_) dst_ = ethash_swap_u32(src_) +#define fix_endian32_same(val_) val_ = ethash_swap_u32(val_) +#define fix_endian64(dst_, src_) dst_ = ethash_swap_u64(src_ +#define fix_endian64_same(val_) val_ = ethash_swap_u64(val_) +#define fix_endian_arr32(arr_, size_) \ + do { \ + for (unsigned i_ = 0; i_ < (size_), ++i_) { \ + arr_[i_] = ethash_swap_u32(arr_[i_]); \ + } \ + while (0) +#define fix_endian_arr64(arr_, size_) \ + do { \ + for (unsigned i_ = 0; i_ < (size_), ++i_) { \ + arr_[i_] = ethash_swap_u64(arr_[i_]); \ + } \ + while (0) \ #else # error "endian not supported" -#endif // BYTE_ORDER
\ No newline at end of file +#endif // BYTE_ORDER diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h index fad964449..0c6a1f9e9 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h @@ -26,124 +26,121 @@ #include <stddef.h> #include "compiler.h" -#define REVISION 23 -#define DATASET_BYTES_INIT 1073741824U // 2**30 -#define DATASET_BYTES_GROWTH 8388608U // 2**23 -#define CACHE_BYTES_INIT 1073741824U // 2**24 -#define CACHE_BYTES_GROWTH 131072U // 2**17 -#define EPOCH_LENGTH 30000U -#define MIX_BYTES 128 -#define HASH_BYTES 64 -#define DATASET_PARENTS 256 -#define CACHE_ROUNDS 3 -#define ACCESSES 64 +#define ETHASH_REVISION 23 +#define ETHASH_DATASET_BYTES_INIT 1073741824U // 2**30 +#define ETHASH_DATASET_BYTES_GROWTH 8388608U // 2**23 +#define ETHASH_CACHE_BYTES_INIT 1073741824U // 2**24 +#define ETHASH_CACHE_BYTES_GROWTH 131072U // 2**17 +#define ETHASH_EPOCH_LENGTH 30000U +#define ETHASH_MIX_BYTES 128 +#define ETHASH_HASH_BYTES 64 +#define ETHASH_DATASET_PARENTS 256 +#define ETHASH_CACHE_ROUNDS 3 +#define ETHASH_ACCESSES 64 +#define ETHASH_DAG_MAGIC_NUM_SIZE 8 +#define ETHASH_DAG_MAGIC_NUM 0xFEE1DEADBADDCAFE #ifdef __cplusplus extern "C" { #endif -typedef struct ethash_params { - uint64_t full_size; // Size of full data set (in bytes, multiple of mix size (128)). - uint64_t cache_size; // Size of compute cache (in bytes, multiple of node size (64)). -} ethash_params; +/// Type of a seedhash/blockhash e.t.c. +typedef struct ethash_h256 { uint8_t b[32]; } ethash_h256_t; -/// Type of a blockhash -typedef struct ethash_blockhash { uint8_t b[32]; } ethash_blockhash_t; -static inline uint8_t ethash_blockhash_get(ethash_blockhash_t const* hash, unsigned int i) -{ - return hash->b[i]; -} +// convenience macro to statically initialize an h256_t +// usage: +// ethash_h256_t a = ethash_h256_static_init(1, 2, 3, ... ) +// have to provide all 32 values. If you don't provide all the rest +// will simply be unitialized (not guranteed to be 0) +#define ethash_h256_static_init(...) \ + { {__VA_ARGS__} } -static inline void ethash_blockhash_set(ethash_blockhash_t *hash, unsigned int i, uint8_t v) -{ - hash->b[i] = v; -} - -static inline void ethash_blockhash_reset(ethash_blockhash_t *hash) -{ - memset(hash, 0, 32); -} +struct ethash_light; +typedef struct ethash_light* ethash_light_t; +struct ethash_full; +typedef struct ethash_full* ethash_full_t; +typedef int(*ethash_callback_t)(unsigned); typedef struct ethash_return_value { - ethash_blockhash_t result; - ethash_blockhash_t mix_hash; -} ethash_return_value; - -uint64_t ethash_get_datasize(const uint32_t block_number); -uint64_t ethash_get_cachesize(const uint32_t block_number); - -// initialize the parameters -static inline void ethash_params_init(ethash_params *params, const uint32_t block_number) { - params->full_size = ethash_get_datasize(block_number); - params->cache_size = ethash_get_cachesize(block_number); -} - -typedef struct ethash_cache { - void *mem; -} ethash_cache; - -void ethash_mkcache(ethash_cache *cache, ethash_params const *params, ethash_blockhash_t const *seed); -void ethash_compute_full_data(void *mem, ethash_params const *params, ethash_cache const *cache); -void ethash_full(ethash_return_value *ret, - void const *full_mem, - ethash_params const *params, - ethash_blockhash_t const *header_hash, - const uint64_t nonce); -void ethash_light(ethash_return_value *ret, - ethash_cache const *cache, - ethash_params const *params, - ethash_blockhash_t const *header_hash, - const uint64_t nonce); -void ethash_get_seedhash(ethash_blockhash_t *seedhash, const uint32_t block_number); - -static inline void ethash_prep_light(void *cache, ethash_params const *params, ethash_blockhash_t const* seed) -{ - ethash_cache c; - c.mem = cache; - ethash_mkcache(&c, params, seed); -} - -static inline void ethash_compute_light(ethash_return_value *ret, void const *cache, ethash_params const *params, ethash_blockhash_t const *header_hash, const uint64_t nonce) -{ - ethash_cache c; - c.mem = (void *) cache; - ethash_light(ret, &c, params, header_hash, nonce); -} - -static inline void ethash_prep_full(void *full, ethash_params const *params, void const *cache) -{ - ethash_cache c; - c.mem = (void *) cache; - ethash_compute_full_data(full, params, &c); -} - -static inline void ethash_compute_full(ethash_return_value *ret, - void const *full, - ethash_params const *params, - ethash_blockhash_t const *header_hash, - const uint64_t nonce) -{ - ethash_full(ret, full, params, header_hash, nonce); -} - -// Returns if hash is less than or equal to difficulty -static inline int ethash_check_difficulty(ethash_blockhash_t const *hash, - ethash_blockhash_t const *difficulty) -{ - // Difficulty is big endian - for (int i = 0; i < 32; i++) { - if (ethash_blockhash_get(hash, i) == ethash_blockhash_get(difficulty, i)) { - continue; - } - return ethash_blockhash_get(hash, i) < ethash_blockhash_get(difficulty, i); - } - return 1; -} - -int ethash_quick_check_difficulty(ethash_blockhash_t const *header_hash, - const uint64_t nonce, - ethash_blockhash_t const *mix_hash, - ethash_blockhash_t const *difficulty); + ethash_h256_t result; + ethash_h256_t mix_hash; + bool success; +} ethash_return_value_t; + +/** + * Allocate and initialize a new ethash_light handler + * + * @param block_number The block number for which to create the handler + * @return Newly allocated ethash_light handler or NULL in case of + * ERRNOMEM or invalid parameters used for @ref ethash_compute_cache_nodes() + */ +ethash_light_t ethash_light_new(uint64_t block_number); +/** + * Frees a previously allocated ethash_light handler + * @param light The light handler to free + */ +void ethash_light_delete(ethash_light_t light); +/** + * Calculate the light client data + * + * @param light The light client handler + * @param header_hash The header hash to pack into the mix + * @param nonce The nonce to pack into the mix + * @return an object of ethash_return_value_t holding the return values + */ +ethash_return_value_t ethash_light_compute( + ethash_light_t light, + ethash_h256_t const header_hash, + uint64_t nonce +); + +/** + * Allocate and initialize a new ethash_full handler + * + * @param light The light handler containing the cache. + * @param callback A callback function with signature of @ref ethash_callback_t + * It accepts an unsigned with which a progress of DAG calculation + * can be displayed. If all goes well the callback should return 0. + * If a non-zero value is returned then DAG generation will stop. + * Be advised. A progress value of 100 means that DAG creation is + * almost complete and that this function will soon return succesfully. + * It does not mean that the function has already had a succesfull return. + * @return Newly allocated ethash_full handler or NULL in case of + * ERRNOMEM or invalid parameters used for @ref ethash_compute_full_data() + */ +ethash_full_t ethash_full_new(ethash_light_t light, ethash_callback_t callback); + +/** + * Frees a previously allocated ethash_full handler + * @param full The light handler to free + */ +void ethash_full_delete(ethash_full_t full); +/** + * Calculate the full client data + * + * @param full The full client handler + * @param header_hash The header hash to pack into the mix + * @param nonce The nonce to pack into the mix + * @return An object of ethash_return_value to hold the return value + */ +ethash_return_value_t ethash_full_compute( + ethash_full_t full, + ethash_h256_t const header_hash, + uint64_t nonce +); +/** + * Get a pointer to the full DAG data + */ +void const* ethash_full_dag(ethash_full_t full); +/** + * Get the size of the DAG data + */ +uint64_t ethash_full_dag_size(ethash_full_t full); + +/** + * Calculate the seedhash for a given block number + */ +ethash_h256_t ethash_get_seedhash(uint64_t block_number); #ifdef __cplusplus } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/fnv.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/fnv.h index edabeaae2..d23c4e247 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/fnv.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/fnv.h @@ -29,10 +29,11 @@ extern "C" { #define FNV_PRIME 0x01000193 -static inline uint32_t fnv_hash(const uint32_t x, const uint32_t y) { - return x*FNV_PRIME ^ y; +static inline uint32_t fnv_hash(uint32_t const x, uint32_t const y) +{ + return x * FNV_PRIME ^ y; } #ifdef __cplusplus } -#endif
\ No newline at end of file +#endif diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c index 5009d52f5..607e44138 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c @@ -8,11 +8,11 @@ ethash is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>. + along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>. */ /** @file internal.c * @author Tim Hughes <tim@twistedfury.com> @@ -23,11 +23,15 @@ #include <assert.h> #include <inttypes.h> #include <stddef.h> +#include <errno.h> +#include <math.h> +#include "mmap.h" #include "ethash.h" #include "fnv.h" #include "endian.h" #include "internal.h" #include "data_sizes.h" +#include "io.h" #ifdef WITH_CRYPTOPP @@ -37,274 +41,456 @@ #include "sha3.h" #endif // WITH_CRYPTOPP -uint64_t ethash_get_datasize(const uint32_t block_number) { - assert(block_number / EPOCH_LENGTH < 2048); - return dag_sizes[block_number / EPOCH_LENGTH]; +uint64_t ethash_get_datasize(uint64_t const block_number) +{ + assert(block_number / ETHASH_EPOCH_LENGTH < 2048); + return dag_sizes[block_number / ETHASH_EPOCH_LENGTH]; } -uint64_t ethash_get_cachesize(const uint32_t block_number) { - assert(block_number / EPOCH_LENGTH < 2048); - return cache_sizes[block_number / EPOCH_LENGTH]; +uint64_t ethash_get_cachesize(uint64_t const block_number) +{ + assert(block_number / ETHASH_EPOCH_LENGTH < 2048); + return cache_sizes[block_number / ETHASH_EPOCH_LENGTH]; } // Follows Sergio's "STRICT MEMORY HARD HASHING FUNCTIONS" (2014) // https://bitslog.files.wordpress.com/2013/12/memohash-v0-3.pdf // SeqMemoHash(s, R, N) -void static ethash_compute_cache_nodes(node *const nodes, - ethash_params const *params, - ethash_blockhash_t const* seed) -{ - assert((params->cache_size % sizeof(node)) == 0); - uint32_t const num_nodes = (uint32_t) (params->cache_size / sizeof(node)); - - SHA3_512(nodes[0].bytes, (uint8_t*)seed, 32); - - for (unsigned i = 1; i != num_nodes; ++i) { - SHA3_512(nodes[i].bytes, nodes[i - 1].bytes, 64); - } - - for (unsigned j = 0; j != CACHE_ROUNDS; j++) { - for (unsigned i = 0; i != num_nodes; i++) { - uint32_t const idx = nodes[i].words[0] % num_nodes; - node data; - data = nodes[(num_nodes - 1 + i) % num_nodes]; - for (unsigned w = 0; w != NODE_WORDS; ++w) { - data.words[w] ^= nodes[idx].words[w]; - } - SHA3_512(nodes[i].bytes, data.bytes, sizeof(data)); - } - } - - // now perform endian conversion -#if BYTE_ORDER != LITTLE_ENDIAN - for (unsigned w = 0; w != (num_nodes*NODE_WORDS); ++w) - { - nodes->words[w] = fix_endian32(nodes->words[w]); - } -#endif -} - -void ethash_mkcache(ethash_cache *cache, - ethash_params const *params, - ethash_blockhash_t const* seed) +bool static ethash_compute_cache_nodes( + node* const nodes, + uint64_t cache_size, + ethash_h256_t const* seed +) { - node *nodes = (node *) cache->mem; - ethash_compute_cache_nodes(nodes, params, seed); + if (cache_size % sizeof(node) != 0) { + return false; + } + uint32_t const num_nodes = (uint32_t) (cache_size / sizeof(node)); + + SHA3_512(nodes[0].bytes, (uint8_t*)seed, 32); + + for (uint32_t i = 1; i != num_nodes; ++i) { + SHA3_512(nodes[i].bytes, nodes[i - 1].bytes, 64); + } + + for (uint32_t j = 0; j != ETHASH_CACHE_ROUNDS; j++) { + for (uint32_t i = 0; i != num_nodes; i++) { + uint32_t const idx = nodes[i].words[0] % num_nodes; + node data; + data = nodes[(num_nodes - 1 + i) % num_nodes]; + for (uint32_t w = 0; w != NODE_WORDS; ++w) { + data.words[w] ^= nodes[idx].words[w]; + } + SHA3_512(nodes[i].bytes, data.bytes, sizeof(data)); + } + } + + // now perform endian conversion + fix_endian_arr32(nodes->words, num_nodes * NODE_WORDS); + return true; } -void ethash_calculate_dag_item(node *const ret, - const unsigned node_index, - const struct ethash_params *params, - const struct ethash_cache *cache) +void ethash_calculate_dag_item( + node* const ret, + uint32_t node_index, + ethash_light_t const light +) { - uint32_t num_parent_nodes = (uint32_t) (params->cache_size / sizeof(node)); - node const *cache_nodes = (node const *) cache->mem; - node const *init = &cache_nodes[node_index % num_parent_nodes]; - - memcpy(ret, init, sizeof(node)); - ret->words[0] ^= node_index; - SHA3_512(ret->bytes, ret->bytes, sizeof(node)); - + uint32_t num_parent_nodes = (uint32_t) (light->cache_size / sizeof(node)); + node const* cache_nodes = (node const *) light->cache; + node const* init = &cache_nodes[node_index % num_parent_nodes]; + memcpy(ret, init, sizeof(node)); + ret->words[0] ^= node_index; + SHA3_512(ret->bytes, ret->bytes, sizeof(node)); #if defined(_M_X64) && ENABLE_SSE - __m128i const fnv_prime = _mm_set1_epi32(FNV_PRIME); - __m128i xmm0 = ret->xmm[0]; - __m128i xmm1 = ret->xmm[1]; - __m128i xmm2 = ret->xmm[2]; - __m128i xmm3 = ret->xmm[3]; + __m128i const fnv_prime = _mm_set1_epi32(FNV_PRIME); + __m128i xmm0 = ret->xmm[0]; + __m128i xmm1 = ret->xmm[1]; + __m128i xmm2 = ret->xmm[2]; + __m128i xmm3 = ret->xmm[3]; #endif - for (unsigned i = 0; i != DATASET_PARENTS; ++i) { - uint32_t parent_index = ((node_index ^ i) * FNV_PRIME ^ ret->words[i % NODE_WORDS]) % num_parent_nodes; - node const *parent = &cache_nodes[parent_index]; + for (uint32_t i = 0; i != ETHASH_DATASET_PARENTS; ++i) { + uint32_t parent_index = fnv_hash(node_index ^ i, ret->words[i % NODE_WORDS]) % num_parent_nodes; + node const *parent = &cache_nodes[parent_index]; #if defined(_M_X64) && ENABLE_SSE - { - xmm0 = _mm_mullo_epi32(xmm0, fnv_prime); - xmm1 = _mm_mullo_epi32(xmm1, fnv_prime); - xmm2 = _mm_mullo_epi32(xmm2, fnv_prime); - xmm3 = _mm_mullo_epi32(xmm3, fnv_prime); - xmm0 = _mm_xor_si128(xmm0, parent->xmm[0]); - xmm1 = _mm_xor_si128(xmm1, parent->xmm[1]); - xmm2 = _mm_xor_si128(xmm2, parent->xmm[2]); - xmm3 = _mm_xor_si128(xmm3, parent->xmm[3]); - - // have to write to ret as values are used to compute index - ret->xmm[0] = xmm0; - ret->xmm[1] = xmm1; - ret->xmm[2] = xmm2; - ret->xmm[3] = xmm3; - } - #else - { - for (unsigned w = 0; w != NODE_WORDS; ++w) { - ret->words[w] = fnv_hash(ret->words[w], parent->words[w]); - } - } + { + xmm0 = _mm_mullo_epi32(xmm0, fnv_prime); + xmm1 = _mm_mullo_epi32(xmm1, fnv_prime); + xmm2 = _mm_mullo_epi32(xmm2, fnv_prime); + xmm3 = _mm_mullo_epi32(xmm3, fnv_prime); + xmm0 = _mm_xor_si128(xmm0, parent->xmm[0]); + xmm1 = _mm_xor_si128(xmm1, parent->xmm[1]); + xmm2 = _mm_xor_si128(xmm2, parent->xmm[2]); + xmm3 = _mm_xor_si128(xmm3, parent->xmm[3]); + + // have to write to ret as values are used to compute index + ret->xmm[0] = xmm0; + ret->xmm[1] = xmm1; + ret->xmm[2] = xmm2; + ret->xmm[3] = xmm3; + } + #else + { + for (unsigned w = 0; w != NODE_WORDS; ++w) { + ret->words[w] = fnv_hash(ret->words[w], parent->words[w]); + } + } #endif - } - - SHA3_512(ret->bytes, ret->bytes, sizeof(node)); + } + SHA3_512(ret->bytes, ret->bytes, sizeof(node)); } -void ethash_compute_full_data( - void *mem, - ethash_params const *params, - ethash_cache const *cache) { - assert((params->full_size % (sizeof(uint32_t) * MIX_WORDS)) == 0); - assert((params->full_size % sizeof(node)) == 0); - node *full_nodes = mem; - - // now compute full nodes - for (unsigned n = 0; n != (params->full_size / sizeof(node)); ++n) { - ethash_calculate_dag_item(&(full_nodes[n]), n, params, cache); - } +bool ethash_compute_full_data( + void* mem, + uint64_t full_size, + ethash_light_t const light, + ethash_callback_t callback +) +{ + if (full_size % (sizeof(uint32_t) * MIX_WORDS) != 0 || + (full_size % sizeof(node)) != 0) { + return false; + } + uint32_t const max_n = (uint32_t)(full_size / sizeof(node)); + node* full_nodes = mem; + double const progress_change = 1.0f / max_n; + double progress = 0.0f; + // now compute full nodes + for (uint32_t n = 0; n != max_n; ++n) { + if (callback && + n % (max_n / 100) == 0 && + callback((unsigned int)(ceil(progress * 100.0f))) != 0) { + + return false; + } + progress += progress_change; + ethash_calculate_dag_item(&(full_nodes[n]), n, light); + } + return true; } -static void ethash_hash(ethash_return_value *ret, - node const *full_nodes, - ethash_cache const *cache, - ethash_params const *params, - ethash_blockhash_t const *header_hash, - const uint64_t nonce) +static bool ethash_hash( + ethash_return_value_t* ret, + node const* full_nodes, + ethash_light_t const light, + uint64_t full_size, + ethash_h256_t const header_hash, + uint64_t const nonce +) { + if (full_size % MIX_WORDS != 0) { + return false; + } + + // pack hash and nonce together into first 40 bytes of s_mix + assert(sizeof(node) * 8 == 512); + node s_mix[MIX_NODES + 1]; + memcpy(s_mix[0].bytes, &header_hash, 32); + fix_endian64(s_mix[0].double_words[4], nonce); + + // compute sha3-512 hash and replicate across mix + SHA3_512(s_mix->bytes, s_mix->bytes, 40); + fix_endian_arr32(s_mix[0].words, 16); + + node* const mix = s_mix + 1; + for (uint32_t w = 0; w != MIX_WORDS; ++w) { + mix->words[w] = s_mix[0].words[w % NODE_WORDS]; + } + + unsigned const page_size = sizeof(uint32_t) * MIX_WORDS; + unsigned const num_full_pages = (unsigned) (full_size / page_size); + + for (unsigned i = 0; i != ETHASH_ACCESSES; ++i) { + uint32_t const index = fnv_hash(s_mix->words[0] ^ i, mix->words[i % MIX_WORDS]) % num_full_pages; + + for (unsigned n = 0; n != MIX_NODES; ++n) { + node const* dag_node; + if (full_nodes) { + dag_node = &full_nodes[MIX_NODES * index + n]; + } else { + node tmp_node; + ethash_calculate_dag_item(&tmp_node, index * MIX_NODES + n, light); + dag_node = &tmp_node; + } - assert((params->full_size % MIX_WORDS) == 0); - - // pack hash and nonce together into first 40 bytes of s_mix - assert(sizeof(node) * 8 == 512); - node s_mix[MIX_NODES + 1]; - memcpy(s_mix[0].bytes, header_hash, 32); - -#if BYTE_ORDER != LITTLE_ENDIAN - s_mix[0].double_words[4] = fix_endian64(nonce); -#else - s_mix[0].double_words[4] = nonce; +#if defined(_M_X64) && ENABLE_SSE + { + __m128i fnv_prime = _mm_set1_epi32(FNV_PRIME); + __m128i xmm0 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[0]); + __m128i xmm1 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[1]); + __m128i xmm2 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[2]); + __m128i xmm3 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[3]); + mix[n].xmm[0] = _mm_xor_si128(xmm0, dag_node->xmm[0]); + mix[n].xmm[1] = _mm_xor_si128(xmm1, dag_node->xmm[1]); + mix[n].xmm[2] = _mm_xor_si128(xmm2, dag_node->xmm[2]); + mix[n].xmm[3] = _mm_xor_si128(xmm3, dag_node->xmm[3]); + } + #else + { + for (unsigned w = 0; w != NODE_WORDS; ++w) { + mix[n].words[w] = fnv_hash(mix[n].words[w], dag_node->words[w]); + } + } #endif + } + + } + + // compress mix + for (uint32_t w = 0; w != MIX_WORDS; w += 4) { + uint32_t reduction = mix->words[w + 0]; + reduction = reduction * FNV_PRIME ^ mix->words[w + 1]; + reduction = reduction * FNV_PRIME ^ mix->words[w + 2]; + reduction = reduction * FNV_PRIME ^ mix->words[w + 3]; + mix->words[w / 4] = reduction; + } + + fix_endian_arr32(mix->words, MIX_WORDS / 4); + memcpy(&ret->mix_hash, mix->bytes, 32); + // final Keccak hash + SHA3_256(&ret->result, s_mix->bytes, 64 + 32); // Keccak-256(s + compressed_mix) + return true; +} - // compute sha3-512 hash and replicate across mix - SHA3_512(s_mix->bytes, s_mix->bytes, 40); - -#if BYTE_ORDER != LITTLE_ENDIAN - for (unsigned w = 0; w != 16; ++w) { - s_mix[0].words[w] = fix_endian32(s_mix[0].words[w]); - } -#endif +void ethash_quick_hash( + ethash_h256_t* return_hash, + ethash_h256_t const* header_hash, + uint64_t const nonce, + ethash_h256_t const* mix_hash +) +{ + uint8_t buf[64 + 32]; + memcpy(buf, header_hash, 32); + fix_endian64_same(nonce); + memcpy(&(buf[32]), &nonce, 8); + SHA3_512(buf, buf, 40); + memcpy(&(buf[64]), mix_hash, 32); + SHA3_256(return_hash, buf, 64 + 32); +} - node *const mix = s_mix + 1; - for (unsigned w = 0; w != MIX_WORDS; ++w) { - mix->words[w] = s_mix[0].words[w % NODE_WORDS]; - } +ethash_h256_t ethash_get_seedhash(uint64_t block_number) +{ + ethash_h256_t ret; + ethash_h256_reset(&ret); + uint64_t const epochs = block_number / ETHASH_EPOCH_LENGTH; + for (uint32_t i = 0; i < epochs; ++i) + SHA3_256(&ret, (uint8_t*)&ret, 32); + return ret; +} - unsigned const - page_size = sizeof(uint32_t) * MIX_WORDS, - num_full_pages = (unsigned) (params->full_size / page_size); +int ethash_quick_check_difficulty( + ethash_h256_t const* header_hash, + uint64_t const nonce, + ethash_h256_t const* mix_hash, + ethash_h256_t const* difficulty +) +{ + ethash_h256_t return_hash; + ethash_quick_hash(&return_hash, header_hash, nonce, mix_hash); + return ethash_check_difficulty(&return_hash, difficulty); +} - for (unsigned i = 0; i != ACCESSES; ++i) { - uint32_t const index = ((s_mix->words[0] ^ i) * FNV_PRIME ^ mix->words[i % MIX_WORDS]) % num_full_pages; +ethash_light_t ethash_light_new_internal(uint64_t cache_size, ethash_h256_t const* seed) +{ + struct ethash_light *ret; + ret = calloc(sizeof(*ret), 1); + if (!ret) { + return NULL; + } + ret->cache = malloc((size_t)cache_size); + if (!ret->cache) { + goto fail_free_light; + } + node* nodes = (node*)ret->cache; + if (!ethash_compute_cache_nodes(nodes, cache_size, seed)) { + goto fail_free_cache_mem; + } + ret->cache_size = cache_size; + return ret; + +fail_free_cache_mem: + free(ret->cache); +fail_free_light: + free(ret); + return NULL; +} - for (unsigned n = 0; n != MIX_NODES; ++n) { - const node *dag_node = &full_nodes[MIX_NODES * index + n]; +ethash_light_t ethash_light_new(uint64_t block_number) +{ + ethash_h256_t seedhash = ethash_get_seedhash(block_number); + ethash_light_t ret; + ret = ethash_light_new_internal(ethash_get_cachesize(block_number), &seedhash); + ret->block_number = block_number; + return ret; +} - if (!full_nodes) { - node tmp_node; - ethash_calculate_dag_item(&tmp_node, index * MIX_NODES + n, params, cache); - dag_node = &tmp_node; - } +void ethash_light_delete(ethash_light_t light) +{ + if (light->cache) { + free(light->cache); + } + free(light); +} -#if defined(_M_X64) && ENABLE_SSE - { - __m128i fnv_prime = _mm_set1_epi32(FNV_PRIME); - __m128i xmm0 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[0]); - __m128i xmm1 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[1]); - __m128i xmm2 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[2]); - __m128i xmm3 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[3]); - mix[n].xmm[0] = _mm_xor_si128(xmm0, dag_node->xmm[0]); - mix[n].xmm[1] = _mm_xor_si128(xmm1, dag_node->xmm[1]); - mix[n].xmm[2] = _mm_xor_si128(xmm2, dag_node->xmm[2]); - mix[n].xmm[3] = _mm_xor_si128(xmm3, dag_node->xmm[3]); - } - #else - { - for (unsigned w = 0; w != NODE_WORDS; ++w) { - mix[n].words[w] = fnv_hash(mix[n].words[w], dag_node->words[w]); - } - } -#endif - } - - } - - // compress mix - for (unsigned w = 0; w != MIX_WORDS; w += 4) { - uint32_t reduction = mix->words[w + 0]; - reduction = reduction * FNV_PRIME ^ mix->words[w + 1]; - reduction = reduction * FNV_PRIME ^ mix->words[w + 2]; - reduction = reduction * FNV_PRIME ^ mix->words[w + 3]; - mix->words[w / 4] = reduction; - } - -#if BYTE_ORDER != LITTLE_ENDIAN - for (unsigned w = 0; w != MIX_WORDS/4; ++w) { - mix->words[w] = fix_endian32(mix->words[w]); - } -#endif +ethash_return_value_t ethash_light_compute_internal( + ethash_light_t light, + uint64_t full_size, + ethash_h256_t const header_hash, + uint64_t nonce +) +{ + ethash_return_value_t ret; + ret.success = true; + if (!ethash_hash(&ret, NULL, light, full_size, header_hash, nonce)) { + ret.success = false; + } + return ret; +} - memcpy(&ret->mix_hash, mix->bytes, 32); - // final Keccak hash - SHA3_256(&ret->result, s_mix->bytes, 64 + 32); // Keccak-256(s + compressed_mix) +ethash_return_value_t ethash_light_compute( + ethash_light_t light, + ethash_h256_t const header_hash, + uint64_t nonce +) +{ + uint64_t full_size = ethash_get_datasize(light->block_number); + return ethash_light_compute_internal(light, full_size, header_hash, nonce); } -void ethash_quick_hash(ethash_blockhash_t *return_hash, - ethash_blockhash_t const *header_hash, - const uint64_t nonce, - ethash_blockhash_t const *mix_hash) +static bool ethash_mmap(struct ethash_full* ret, FILE* f) { + int fd; + char* mmapped_data; + ret->file = f; + if ((fd = ethash_fileno(ret->file)) == -1) { + return false; + } + mmapped_data= mmap( + NULL, + (size_t)ret->file_size + ETHASH_DAG_MAGIC_NUM_SIZE, + PROT_READ | PROT_WRITE, + MAP_SHARED, + fd, + 0 + ); + if (mmapped_data == MAP_FAILED) { + return false; + } + ret->data = (node*)(mmapped_data + ETHASH_DAG_MAGIC_NUM_SIZE); + return true; +} - uint8_t buf[64 + 32]; - memcpy(buf, header_hash, 32); -#if BYTE_ORDER != LITTLE_ENDIAN - nonce = fix_endian64(nonce); -#endif - memcpy(&(buf[32]), &nonce, 8); - SHA3_512(buf, buf, 40); - memcpy(&(buf[64]), mix_hash, 32); - SHA3_256(return_hash, buf, 64 + 32); +ethash_full_t ethash_full_new_internal( + char const* dirname, + ethash_h256_t const seed_hash, + uint64_t full_size, + ethash_light_t const light, + ethash_callback_t callback +) +{ + struct ethash_full* ret; + FILE *f = NULL; + ret = calloc(sizeof(*ret), 1); + if (!ret) { + return NULL; + } + ret->file_size = (size_t)full_size; + switch (ethash_io_prepare(dirname, seed_hash, &f, (size_t)full_size, false)) { + case ETHASH_IO_FAIL: + goto fail_free_full; + case ETHASH_IO_MEMO_MATCH: + if (!ethash_mmap(ret, f)) { + goto fail_close_file; + } + return ret; + case ETHASH_IO_MEMO_SIZE_MISMATCH: + // if a DAG of same filename but unexpected size is found, silently force new file creation + if (ethash_io_prepare(dirname, seed_hash, &f, (size_t)full_size, true) != ETHASH_IO_MEMO_MISMATCH) { + goto fail_free_full; + } + // fallthrough to the mismatch case here, DO NOT go through match + case ETHASH_IO_MEMO_MISMATCH: + if (!ethash_mmap(ret, f)) { + goto fail_close_file; + } + break; + } + + if (!ethash_compute_full_data(ret->data, full_size, light, callback)) { + goto fail_free_full_data; + } + + // after the DAG has been filled then we finalize it by writting the magic number at the beginning + if (fseek(f, 0, SEEK_SET) != 0) { + goto fail_free_full_data; + } + uint64_t const magic_num = ETHASH_DAG_MAGIC_NUM; + if (fwrite(&magic_num, ETHASH_DAG_MAGIC_NUM_SIZE, 1, f) != 1) { + goto fail_free_full_data; + } + fflush(f); // make sure the magic number IS there + return ret; + +fail_free_full_data: + // could check that munmap(..) == 0 but even if it did not can't really do anything here + munmap(ret->data, (size_t)full_size); +fail_close_file: + fclose(ret->file); +fail_free_full: + free(ret); + return NULL; } -void ethash_get_seedhash(ethash_blockhash_t *seedhash, const uint32_t block_number) +ethash_full_t ethash_full_new(ethash_light_t light, ethash_callback_t callback) { - ethash_blockhash_reset(seedhash); - const uint32_t epochs = block_number / EPOCH_LENGTH; - for (uint32_t i = 0; i < epochs; ++i) - SHA3_256(seedhash, (uint8_t*)seedhash, 32); + char strbuf[256]; + if (!ethash_get_default_dirname(strbuf, 256)) { + return NULL; + } + uint64_t full_size = ethash_get_datasize(light->block_number); + ethash_h256_t seedhash = ethash_get_seedhash(light->block_number); + return ethash_full_new_internal(strbuf, seedhash, full_size, light, callback); } -int ethash_quick_check_difficulty(ethash_blockhash_t const *header_hash, - const uint64_t nonce, - ethash_blockhash_t const *mix_hash, - ethash_blockhash_t const *difficulty) +void ethash_full_delete(ethash_full_t full) { + // could check that munmap(..) == 0 but even if it did not can't really do anything here + munmap(full->data, (size_t)full->file_size); + if (full->file) { + fclose(full->file); + } + free(full); +} - ethash_blockhash_t return_hash; - ethash_quick_hash(&return_hash, header_hash, nonce, mix_hash); - return ethash_check_difficulty(&return_hash, difficulty); +ethash_return_value_t ethash_full_compute( + ethash_full_t full, + ethash_h256_t const header_hash, + uint64_t nonce +) +{ + ethash_return_value_t ret; + ret.success = true; + if (!ethash_hash( + &ret, + (node const*)full->data, + NULL, + full->file_size, + header_hash, + nonce)) { + ret.success = false; + } + return ret; } -void ethash_full(ethash_return_value *ret, - void const *full_mem, - ethash_params const *params, - ethash_blockhash_t const *header_hash, - const uint64_t nonce) +void const* ethash_full_dag(ethash_full_t full) { - ethash_hash(ret, (node const *) full_mem, NULL, params, header_hash, nonce); + return full->data; } -void ethash_light(ethash_return_value *ret, - ethash_cache const *cache, - ethash_params const *params, - ethash_blockhash_t const *header_hash, - const uint64_t nonce) +uint64_t ethash_full_dag_size(ethash_full_t full) { - ethash_hash(ret, NULL, cache, params, header_hash, nonce); + return full->file_size; } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.h index 1e19cd1fd..221ff290a 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.h @@ -2,6 +2,7 @@ #include "compiler.h" #include "endian.h" #include "ethash.h" +#include <stdio.h> #define ENABLE_SSE 0 @@ -15,14 +16,14 @@ extern "C" { // compile time settings #define NODE_WORDS (64/4) -#define MIX_WORDS (MIX_BYTES/4) +#define MIX_WORDS (ETHASH_MIX_BYTES/4) #define MIX_NODES (MIX_WORDS / NODE_WORDS) #include <stdint.h> typedef union node { - uint8_t bytes[NODE_WORDS * 4]; - uint32_t words[NODE_WORDS]; - uint64_t double_words[NODE_WORDS / 2]; + uint8_t bytes[NODE_WORDS * 4]; + uint32_t words[NODE_WORDS]; + uint64_t double_words[NODE_WORDS / 2]; #if defined(_M_X64) && ENABLE_SSE __m128i xmm[NODE_WORDS/4]; @@ -30,15 +31,139 @@ typedef union node { } node; -void ethash_calculate_dag_item(node *const ret, - const unsigned node_index, - ethash_params const *params, - ethash_cache const *cache); +static inline uint8_t ethash_h256_get(ethash_h256_t const* hash, unsigned int i) +{ + return hash->b[i]; +} + +static inline void ethash_h256_set(ethash_h256_t* hash, unsigned int i, uint8_t v) +{ + hash->b[i] = v; +} + +static inline void ethash_h256_reset(ethash_h256_t* hash) +{ + memset(hash, 0, 32); +} + +// Returns if hash is less than or equal to difficulty +static inline int ethash_check_difficulty( + ethash_h256_t const* hash, + ethash_h256_t const* difficulty +) +{ + // Difficulty is big endian + for (int i = 0; i < 32; i++) { + if (ethash_h256_get(hash, i) == ethash_h256_get(difficulty, i)) { + continue; + } + return ethash_h256_get(hash, i) < ethash_h256_get(difficulty, i); + } + return 1; +} + +int ethash_quick_check_difficulty( + ethash_h256_t const* header_hash, + uint64_t const nonce, + ethash_h256_t const* mix_hash, + ethash_h256_t const* difficulty +); + +struct ethash_light { + void* cache; + uint64_t cache_size; + uint64_t block_number; +}; + +/** + * Allocate and initialize a new ethash_light handler. Internal version + * + * @param cache_size The size of the cache in bytes + * @param seed Block seedhash to be used during the computation of the + * cache nodes + * @return Newly allocated ethash_light handler or NULL in case of + * ERRNOMEM or invalid parameters used for @ref ethash_compute_cache_nodes() + */ +ethash_light_t ethash_light_new_internal(uint64_t cache_size, ethash_h256_t const* seed); + +/** + * Calculate the light client data. Internal version. + * + * @param light The light client handler + * @param full_size The size of the full data in bytes. + * @param header_hash The header hash to pack into the mix + * @param nonce The nonce to pack into the mix + * @return The resulting hash. + */ +ethash_return_value_t ethash_light_compute_internal( + ethash_light_t light, + uint64_t full_size, + ethash_h256_t const header_hash, + uint64_t nonce +); + +struct ethash_full { + FILE* file; + uint64_t file_size; + node* data; +}; + +/** + * Allocate and initialize a new ethash_full handler. Internal version. + * + * @param dirname The directory in which to put the DAG file. + * @param seedhash The seed hash of the block. Used in the DAG file naming. + * @param full_size The size of the full data in bytes. + * @param cache A cache object to use that was allocated with @ref ethash_cache_new(). + * Iff this function succeeds the ethash_full_t will take memory + * memory ownership of the cache and free it at deletion. If + * not then the user still has to handle freeing of the cache himself. + * @param callback A callback function with signature of @ref ethash_callback_t + * It accepts an unsigned with which a progress of DAG calculation + * can be displayed. If all goes well the callback should return 0. + * If a non-zero value is returned then DAG generation will stop. + * @return Newly allocated ethash_full handler or NULL in case of + * ERRNOMEM or invalid parameters used for @ref ethash_compute_full_data() + */ +ethash_full_t ethash_full_new_internal( + char const* dirname, + ethash_h256_t const seed_hash, + uint64_t full_size, + ethash_light_t const light, + ethash_callback_t callback +); + +void ethash_calculate_dag_item( + node* const ret, + uint32_t node_index, + ethash_light_t const cache +); + +void ethash_quick_hash( + ethash_h256_t* return_hash, + ethash_h256_t const* header_hash, + const uint64_t nonce, + ethash_h256_t const* mix_hash +); + +uint64_t ethash_get_datasize(uint64_t const block_number); +uint64_t ethash_get_cachesize(uint64_t const block_number); -void ethash_quick_hash(ethash_blockhash_t *return_hash, - ethash_blockhash_t const *header_hash, - const uint64_t nonce, - ethash_blockhash_t const *mix_hash); +/** + * Compute the memory data for a full node's memory + * + * @param mem A pointer to an ethash full's memory + * @param full_size The size of the full data in bytes + * @param cache A cache object to use in the calculation + * @param callback The callback function. Check @ref ethash_full_new() for details. + * @return true if all went fine and false for invalid parameters + */ +bool ethash_compute_full_data( + void* mem, + uint64_t full_size, + ethash_light_t const light, + ethash_callback_t callback +); #ifdef __cplusplus } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.c index 5a8eebae5..5b4e7da2b 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.c @@ -22,68 +22,81 @@ #include <string.h> #include <stdio.h> -// silly macro to save some typing -#define PASS_ARR(c_) (c_), sizeof(c_) - -static bool ethash_io_write_file(char const *dirname, - char const* filename, - size_t filename_length, - void const* data, - size_t data_size) -{ - bool ret = false; - char *fullname = ethash_io_create_filename(dirname, filename, filename_length); - if (!fullname) { - return false; - } - FILE *f = fopen(fullname, "wb"); - if (!f) { - goto free_name; - } - if (data_size != fwrite(data, 1, data_size, f)) { - goto close; - } - - ret = true; -close: - fclose(f); -free_name: - free(fullname); - return ret; -} - -bool ethash_io_write(char const *dirname, - ethash_params const* params, - ethash_blockhash_t seedhash, - void const* cache, - uint8_t **data, - uint64_t *data_size) +enum ethash_io_rc ethash_io_prepare( + char const* dirname, + ethash_h256_t const seedhash, + FILE** output_file, + uint64_t file_size, + bool force_create +) { - char info_buffer[DAG_MEMO_BYTESIZE]; - // allocate the bytes - uint8_t *temp_data_ptr = malloc((size_t)params->full_size); - if (!temp_data_ptr) { - goto end; - } - ethash_compute_full_data(temp_data_ptr, params, cache); + char mutable_name[DAG_MUTABLE_NAME_MAX_SIZE]; + enum ethash_io_rc ret = ETHASH_IO_FAIL; - if (!ethash_io_write_file(dirname, PASS_ARR(DAG_FILE_NAME), temp_data_ptr, (size_t)params->full_size)) { - goto fail_free; - } + // assert directory exists + if (!ethash_mkdir(dirname)) { + goto end; + } - ethash_io_serialize_info(REVISION, seedhash, info_buffer); - if (!ethash_io_write_file(dirname, PASS_ARR(DAG_MEMO_NAME), info_buffer, DAG_MEMO_BYTESIZE)) { - goto fail_free; - } + ethash_io_mutable_name(ETHASH_REVISION, &seedhash, mutable_name); + char* tmpfile = ethash_io_create_filename(dirname, mutable_name, strlen(mutable_name)); + if (!tmpfile) { + goto end; + } - *data = temp_data_ptr; - *data_size = params->full_size; - return true; + FILE *f; + if (!force_create) { + // try to open the file + f = ethash_fopen(tmpfile, "rb+"); + if (f) { + size_t found_size; + if (!ethash_file_size(f, &found_size)) { + fclose(f); + goto free_memo; + } + if (file_size != found_size - ETHASH_DAG_MAGIC_NUM_SIZE) { + fclose(f); + ret = ETHASH_IO_MEMO_SIZE_MISMATCH; + goto free_memo; + } + // compare the magic number, no need to care about endianess since it's local + uint64_t magic_num; + if (fread(&magic_num, ETHASH_DAG_MAGIC_NUM_SIZE, 1, f) != 1) { + // I/O error + fclose(f); + ret = ETHASH_IO_MEMO_SIZE_MISMATCH; + goto free_memo; + } + if (magic_num != ETHASH_DAG_MAGIC_NUM) { + fclose(f); + ret = ETHASH_IO_MEMO_SIZE_MISMATCH; + goto free_memo; + } + ret = ETHASH_IO_MEMO_MATCH; + goto set_file; + } + } + + // file does not exist, will need to be created + f = ethash_fopen(tmpfile, "wb+"); + if (!f) { + goto free_memo; + } + // make sure it's of the proper size + if (fseek(f, (long int)(file_size + ETHASH_DAG_MAGIC_NUM_SIZE - 1), SEEK_SET) != 0) { + fclose(f); + goto free_memo; + } + fputc('\n', f); + fflush(f); + ret = ETHASH_IO_MEMO_MISMATCH; + goto set_file; -fail_free: - free(temp_data_ptr); + ret = ETHASH_IO_MEMO_MATCH; +set_file: + *output_file = f; +free_memo: + free(tmpfile); end: - return false; + return ret; } - -#undef PASS_ARR diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.h index 8cf8b69bf..4fe46d756 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.h @@ -22,93 +22,162 @@ #include <stdlib.h> #include <stdint.h> #include <stdbool.h> +#include <stdio.h> +#ifdef __cplusplus +#define __STDC_FORMAT_MACROS 1 +#endif +#include <inttypes.h> +#include "endian.h" #include "ethash.h" #ifdef __cplusplus extern "C" { #endif - -static const char DAG_FILE_NAME[] = "full"; -static const char DAG_MEMO_NAME[] = "full.info"; -// MSVC thinks that "static const unsigned int" is not a compile time variable. Sorry for the #define :( -#define DAG_MEMO_BYTESIZE 36 - +// Maximum size for mutable part of DAG file name +// 10 is for maximum number of digits of a uint32_t (for REVISION) +// 1 is for _ and 16 is for the first 16 hex digits for first 8 bytes of +// the seedhash and last 1 is for the null terminating character +// Reference: https://github.com/ethereum/wiki/wiki/Ethash-DAG +#define DAG_MUTABLE_NAME_MAX_SIZE (10 + 1 + 16 + 1) /// Possible return values of @see ethash_io_prepare enum ethash_io_rc { - ETHASH_IO_FAIL = 0, ///< There has been an IO failure - ETHASH_IO_MEMO_MISMATCH, ///< Memo file either did not exist or there was content mismatch - ETHASH_IO_MEMO_MATCH, ///< Memo file existed and contents matched. No need to do anything + ETHASH_IO_FAIL = 0, ///< There has been an IO failure + ETHASH_IO_MEMO_SIZE_MISMATCH, ///< DAG with revision/hash match, but file size was wrong. + ETHASH_IO_MEMO_MISMATCH, ///< The DAG file did not exist or there was revision/hash mismatch + ETHASH_IO_MEMO_MATCH, ///< DAG file existed and revision/hash matched. No need to do anything }; +// small hack for windows. I don't feel I should use va_args and forward just +// to have this one function properly cross-platform abstracted +#if defined(_WIN32) && !defined(__GNUC__) +#define snprintf(...) sprintf_s(__VA_ARGS__) +#endif + /** * Prepares io for ethash * - * Create the DAG directory if it does not exist, and check if the memo file matches. - * If it does not match then it's deleted to pave the way for @ref ethash_io_write() + * Create the DAG directory and the DAG file if they don't exist. * - * @param dirname A null terminated c-string of the path of the ethash - * data directory. If it does not exist it's created. - * @param seedhash The seedhash of the current block number - * @return For possible return values @see enum ethash_io_rc + * @param[in] dirname A null terminated c-string of the path of the ethash + * data directory. If it does not exist it's created. + * @param[in] seedhash The seedhash of the current block number, used in the + * naming of the file as can be seen from the spec at: + * https://github.com/ethereum/wiki/wiki/Ethash-DAG + * @param[out] output_file If there was no failure then this will point to an open + * file descriptor. User is responsible for closing it. + * In the case of memo match then the file is open on read + * mode, while on the case of mismatch a new file is created + * on write mode + * @param[in] file_size The size that the DAG file should have on disk + * @param[out] force_create If true then there is no check to see if the file + * already exists + * @return For possible return values @see enum ethash_io_rc */ -enum ethash_io_rc ethash_io_prepare(char const *dirname, ethash_blockhash_t seedhash); +enum ethash_io_rc ethash_io_prepare( + char const* dirname, + ethash_h256_t const seedhash, + FILE** output_file, + uint64_t file_size, + bool force_create +); /** - * Fully computes data and writes it to the file on disk. + * An fopen wrapper for no-warnings crossplatform fopen. * - * This function should be called after @see ethash_io_prepare() and only if - * its return value is @c ETHASH_IO_MEMO_MISMATCH. Will write both the full data - * and the memo file. + * Msvc compiler considers fopen to be insecure and suggests to use their + * alternative. This is a wrapper for this alternative. Another way is to + * #define _CRT_SECURE_NO_WARNINGS, but disabling all security warnings does + * not sound like a good idea. * - * @param[in] dirname A null terminated c-string of the path of the ethash - * data directory. Has to exist. - * @param[in] params An ethash_params object containing the full size - * and the cache size - * @param[in] seedhash The seedhash of the current block number - * @param[in] cache The cache data. Would have usually been calulated by - * @see ethash_prep_light(). - * @param[out] data Pass a pointer to uint8_t by reference here. If the - * function is succesfull then this point to the allocated - * data calculated by @see ethash_prep_full(). Memory - * ownership is transfered to the callee. Remember that - * you eventually need to free this with a call to free(). - * @param[out] data_size Pass a uint64_t by value. If the function is succesfull - * then this will contain the number of bytes allocated - * for @a data. - * @return True for success and false in case of failure. + * @param file_name The path to the file to open + * @param mode Opening mode. Check fopen() + * @return The FILE* or NULL in failure */ -bool ethash_io_write(char const *dirname, - ethash_params const* params, - ethash_blockhash_t seedhash, - void const* cache, - uint8_t **data, - uint64_t *data_size); +FILE* ethash_fopen(char const* file_name, char const* mode); -static inline void ethash_io_serialize_info(uint32_t revision, - ethash_blockhash_t seed_hash, - char *output) -{ - // if .info is only consumed locally we don't really care about endianess - memcpy(output, &revision, 4); - memcpy(output + 4, &seed_hash, 32); -} +/** + * An strncat wrapper for no-warnings crossplatform strncat. + * + * Msvc compiler considers strncat to be insecure and suggests to use their + * alternative. This is a wrapper for this alternative. Another way is to + * #define _CRT_SECURE_NO_WARNINGS, but disabling all security warnings does + * not sound like a good idea. + * + * @param des Destination buffer + * @param dest_size Maximum size of the destination buffer. This is the + * extra argument for the MSVC secure strncat + * @param src Souce buffer + * @param count Number of bytes to copy from source + * @return If all is well returns the dest buffer. If there is an + * error returns NULL + */ +char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count); -static inline char *ethash_io_create_filename(char const *dirname, - char const* filename, - size_t filename_length) -{ - // in C the cast is not needed, but a C++ compiler will complain for invalid conversion - char *name = (char*)malloc(strlen(dirname) + filename_length); - if (!name) { - return NULL; - } +/** + * A cross-platform mkdir wrapper to create a directory or assert it's there + * + * @param dirname The full path of the directory to create + * @return true if the directory was created or if it already + * existed + */ +bool ethash_mkdir(char const* dirname); - name[0] = '\0'; - strcat(name, dirname); - strcat(name, filename); - return name; -} +/** + * Get a file's size + * + * @param[in] f The open file stream whose size to get + * @param[out] size Pass a size_t by reference to contain the file size + * @return true in success and false if there was a failure + */ +bool ethash_file_size(FILE* f, size_t* ret_size); + +/** + * Get a file descriptor number from a FILE stream + * + * @param f The file stream whose fd to get + * @return Platform specific fd handler + */ +int ethash_fileno(FILE* f); +/** + * Create the filename for the DAG. + * + * @param dirname The directory name in which the DAG file should reside + * If it does not end with a directory separator it is appended. + * @param filename The actual name of the file + * @param filename_length The length of the filename in bytes + * @return A char* containing the full name. User must deallocate. + */ +char* ethash_io_create_filename( + char const* dirname, + char const* filename, + size_t filename_length +); + +/** + * Gets the default directory name for the DAG depending on the system + * + * The spec defining this directory is here: https://github.com/ethereum/wiki/wiki/Ethash-DAG + * + * @param[out] strbuf A string buffer of sufficient size to keep the + * null termninated string of the directory name + * @param[in] buffsize Size of @a strbuf in bytes + * @return true for success and false otherwise + */ +bool ethash_get_default_dirname(char* strbuf, size_t buffsize); + +static inline bool ethash_io_mutable_name( + uint32_t revision, + ethash_h256_t const* seed_hash, + char* output +) +{ + uint64_t hash = *((uint64_t*)seed_hash); +#if LITTLE_ENDIAN == BYTE_ORDER + hash = ethash_swap_u64(hash); +#endif + return snprintf(output, DAG_MUTABLE_NAME_MAX_SIZE, "%u_%016" PRIx64, revision, hash) >= 0; +} #ifdef __cplusplus } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_posix.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_posix.c index 693bdf750..7f03d5482 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_posix.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_posix.c @@ -27,50 +27,76 @@ #include <stdio.h> #include <unistd.h> -enum ethash_io_rc ethash_io_prepare(char const *dirname, ethash_blockhash_t seedhash) +FILE* ethash_fopen(char const* file_name, char const* mode) { - char read_buffer[DAG_MEMO_BYTESIZE]; - char expect_buffer[DAG_MEMO_BYTESIZE]; - enum ethash_io_rc ret = ETHASH_IO_FAIL; + return fopen(file_name, mode); +} - // assert directory exists, full owner permissions and read/search for others - int rc = mkdir(dirname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); - if (rc == -1 && errno != EEXIST) { - goto end; - } +char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count) +{ + return strlen(dest) + count + 1 <= dest_size ? strncat(dest, src, count) : NULL; +} - char *memofile = ethash_io_create_filename(dirname, DAG_MEMO_NAME, sizeof(DAG_MEMO_NAME)); - if (!memofile) { - goto end; - } +bool ethash_mkdir(char const* dirname) +{ + int rc = mkdir(dirname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); + return rc != -1 || errno == EEXIST; +} - // try to open memo file - FILE *f = fopen(memofile, "rb"); - if (!f) { - // file does not exist, so no checking happens. All is fine. - ret = ETHASH_IO_MEMO_MISMATCH; - goto free_memo; - } +int ethash_fileno(FILE *f) +{ + return fileno(f); +} - if (fread(read_buffer, 1, DAG_MEMO_BYTESIZE, f) != DAG_MEMO_BYTESIZE) { - goto close; - } +char* ethash_io_create_filename( + char const* dirname, + char const* filename, + size_t filename_length +) +{ + size_t dirlen = strlen(dirname); + size_t dest_size = dirlen + filename_length + 1; + if (dirname[dirlen] != '/') { + dest_size += 1; + } + char* name = malloc(dest_size); + if (!name) { + return NULL; + } - ethash_io_serialize_info(REVISION, seedhash, expect_buffer); - if (memcmp(read_buffer, expect_buffer, DAG_MEMO_BYTESIZE) != 0) { - // we have different memo contents so delete the memo file - if (unlink(memofile) != 0) { - goto close; - } - ret = ETHASH_IO_MEMO_MISMATCH; - } + name[0] = '\0'; + ethash_strncat(name, dest_size, dirname, dirlen); + if (dirname[dirlen] != '/') { + ethash_strncat(name, dest_size, "/", 1); + } + ethash_strncat(name, dest_size, filename, filename_length); + return name; +} - ret = ETHASH_IO_MEMO_MATCH; +bool ethash_file_size(FILE* f, size_t* ret_size) +{ + struct stat st; + int fd; + if ((fd = fileno(f)) == -1 || fstat(fd, &st) != 0) { + return false; + } + *ret_size = st.st_size; + return true; +} -close: - fclose(f); -free_memo: - free(memofile); -end: - return ret; +bool ethash_get_default_dirname(char* strbuf, size_t buffsize) +{ + static const char dir_suffix[] = ".ethash/"; + strbuf[0] = '\0'; + char* home_dir = getenv("HOME"); + size_t len = strlen(home_dir); + if (!ethash_strncat(strbuf, buffsize, home_dir, len)) { + return false; + } + if (home_dir[len] != '/') { + if (!ethash_strncat(strbuf, buffsize, "/", 1)) { + return false; + } + } + return ethash_strncat(strbuf, buffsize, dir_suffix, sizeof(dir_suffix)); } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_win32.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_win32.c index 2cabc939a..d9c54d141 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_win32.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_win32.c @@ -23,51 +23,78 @@ #include <direct.h> #include <errno.h> #include <stdio.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <Shlobj.h> -enum ethash_io_rc ethash_io_prepare(char const *dirname, ethash_blockhash_t seedhash) +FILE* ethash_fopen(char const* file_name, char const* mode) { - char read_buffer[DAG_MEMO_BYTESIZE]; - char expect_buffer[DAG_MEMO_BYTESIZE]; - enum ethash_io_rc ret = ETHASH_IO_FAIL; + FILE* f; + return fopen_s(&f, file_name, mode) == 0 ? f : NULL; +} - // assert directory exists - int rc = _mkdir(dirname); - if (rc == -1 && errno != EEXIST) { - goto end; - } +char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count) +{ + return strncat_s(dest, dest_size, src, count) == 0 ? dest : NULL; +} - char *memofile = ethash_io_create_filename(dirname, DAG_MEMO_NAME, sizeof(DAG_MEMO_NAME)); - if (!memofile) { - goto end; - } +bool ethash_mkdir(char const* dirname) +{ + int rc = _mkdir(dirname); + return rc != -1 || errno == EEXIST; +} - // try to open memo file - FILE *f = fopen(memofile, "rb"); - if (!f) { - // file does not exist, so no checking happens. All is fine. - ret = ETHASH_IO_MEMO_MISMATCH; - goto free_memo; - } +int ethash_fileno(FILE* f) +{ + return _fileno(f); +} - if (fread(read_buffer, 1, DAG_MEMO_BYTESIZE, f) != DAG_MEMO_BYTESIZE) { - goto close; - } +char* ethash_io_create_filename( + char const* dirname, + char const* filename, + size_t filename_length +) +{ + size_t dirlen = strlen(dirname); + size_t dest_size = dirlen + filename_length + 1; + if (dirname[dirlen] != '\\' || dirname[dirlen] != '/') { + dest_size += 1; + } + char* name = malloc(dest_size); + if (!name) { + return NULL; + } + + name[0] = '\0'; + ethash_strncat(name, dest_size, dirname, dirlen); + if (dirname[dirlen] != '\\' || dirname[dirlen] != '/') { + ethash_strncat(name, dest_size, "\\", 1); + } + ethash_strncat(name, dest_size, filename, filename_length); + return name; +} - ethash_io_serialize_info(REVISION, seedhash, expect_buffer); - if (memcmp(read_buffer, expect_buffer, DAG_MEMO_BYTESIZE) != 0) { - // we have different memo contents so delete the memo file - if (_unlink(memofile) != 0) { - goto close; - } - ret = ETHASH_IO_MEMO_MISMATCH; - } +bool ethash_file_size(FILE* f, size_t* ret_size) +{ + struct _stat st; + int fd; + if ((fd = _fileno(f)) == -1 || _fstat(fd, &st) != 0) { + return false; + } + *ret_size = st.st_size; + return true; +} - ret = ETHASH_IO_MEMO_MATCH; +bool ethash_get_default_dirname(char* strbuf, size_t buffsize) +{ + static const char dir_suffix[] = "Appdata\\Ethash\\"; + strbuf[0] = '\0'; + if (!SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_PROFILE, NULL, 0, (WCHAR*)strbuf))) { + return false; + } + if (!ethash_strncat(strbuf, buffsize, "\\", 1)) { + return false; + } -close: - fclose(f); -free_memo: - free(memofile); -end: - return ret; + return ethash_strncat(strbuf, buffsize, dir_suffix, sizeof(dir_suffix)); } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/mmap.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/mmap.h new file mode 100644 index 000000000..1e226e83f --- /dev/null +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/mmap.h @@ -0,0 +1,47 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file mmap.h + * @author Lefteris Karapetsas <lefteris@ethdev.com> + * @date 2015 + */ +#pragma once +#if defined(__MINGW32__) || defined(_WIN32) +#include <sys/types.h> + +#define PROT_READ 0x1 +#define PROT_WRITE 0x2 +/* This flag is only available in WinXP+ */ +#ifdef FILE_MAP_EXECUTE +#define PROT_EXEC 0x4 +#else +#define PROT_EXEC 0x0 +#define FILE_MAP_EXECUTE 0 +#endif + +#define MAP_SHARED 0x01 +#define MAP_PRIVATE 0x02 +#define MAP_ANONYMOUS 0x20 +#define MAP_ANON MAP_ANONYMOUS +#define MAP_FAILED ((void *) -1) + +void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t offset); +void munmap(void* addr, size_t length); +#else // posix, yay! ^_^ +#include <sys/mman.h> +#endif + + diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/mmap_win32.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/mmap_win32.c new file mode 100644 index 000000000..42968b98a --- /dev/null +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/mmap_win32.c @@ -0,0 +1,84 @@ +/* mmap() replacement for Windows + * + * Author: Mike Frysinger <vapier@gentoo.org> + * Placed into the public domain + */ + +/* References: + * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx + * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx + * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx + * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx + */ + +#include <io.h> +#include <windows.h> +#include "mmap.h" + +#ifdef __USE_FILE_OFFSET64 +# define DWORD_HI(x) (x >> 32) +# define DWORD_LO(x) ((x) & 0xffffffff) +#else +# define DWORD_HI(x) (0) +# define DWORD_LO(x) (x) +#endif + +void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t offset) +{ + if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) + return MAP_FAILED; + if (fd == -1) { + if (!(flags & MAP_ANON) || offset) + return MAP_FAILED; + } else if (flags & MAP_ANON) + return MAP_FAILED; + + DWORD flProtect; + if (prot & PROT_WRITE) { + if (prot & PROT_EXEC) + flProtect = PAGE_EXECUTE_READWRITE; + else + flProtect = PAGE_READWRITE; + } else if (prot & PROT_EXEC) { + if (prot & PROT_READ) + flProtect = PAGE_EXECUTE_READ; + else if (prot & PROT_EXEC) + flProtect = PAGE_EXECUTE; + } else + flProtect = PAGE_READONLY; + + off_t end = length + offset; + HANDLE mmap_fd, h; + if (fd == -1) + mmap_fd = INVALID_HANDLE_VALUE; + else + mmap_fd = (HANDLE)_get_osfhandle(fd); + h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); + if (h == NULL) + return MAP_FAILED; + + DWORD dwDesiredAccess; + if (prot & PROT_WRITE) + dwDesiredAccess = FILE_MAP_WRITE; + else + dwDesiredAccess = FILE_MAP_READ; + if (prot & PROT_EXEC) + dwDesiredAccess |= FILE_MAP_EXECUTE; + if (flags & MAP_PRIVATE) + dwDesiredAccess |= FILE_MAP_COPY; + void *ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); + if (ret == NULL) { + ret = MAP_FAILED; + } + // since we are handling the file ourselves with fd, close the Windows Handle here + CloseHandle(h); + return ret; +} + +void munmap(void* addr, size_t length) +{ + UnmapViewOfFile(addr); +} + +#undef DWORD_HI +#undef DWORD_LO diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3.c index 0c28230b8..e72fe1018 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3.c @@ -17,65 +17,65 @@ /*** Constants. ***/ static const uint8_t rho[24] = \ - { 1, 3, 6, 10, 15, 21, - 28, 36, 45, 55, 2, 14, - 27, 41, 56, 8, 25, 43, - 62, 18, 39, 61, 20, 44}; + { 1, 3, 6, 10, 15, 21, + 28, 36, 45, 55, 2, 14, + 27, 41, 56, 8, 25, 43, + 62, 18, 39, 61, 20, 44}; static const uint8_t pi[24] = \ - {10, 7, 11, 17, 18, 3, - 5, 16, 8, 21, 24, 4, - 15, 23, 19, 13, 12, 2, - 20, 14, 22, 9, 6, 1}; + {10, 7, 11, 17, 18, 3, + 5, 16, 8, 21, 24, 4, + 15, 23, 19, 13, 12, 2, + 20, 14, 22, 9, 6, 1}; static const uint64_t RC[24] = \ - {1ULL, 0x8082ULL, 0x800000000000808aULL, 0x8000000080008000ULL, - 0x808bULL, 0x80000001ULL, 0x8000000080008081ULL, 0x8000000000008009ULL, - 0x8aULL, 0x88ULL, 0x80008009ULL, 0x8000000aULL, - 0x8000808bULL, 0x800000000000008bULL, 0x8000000000008089ULL, 0x8000000000008003ULL, - 0x8000000000008002ULL, 0x8000000000000080ULL, 0x800aULL, 0x800000008000000aULL, - 0x8000000080008081ULL, 0x8000000000008080ULL, 0x80000001ULL, 0x8000000080008008ULL}; + {1ULL, 0x8082ULL, 0x800000000000808aULL, 0x8000000080008000ULL, + 0x808bULL, 0x80000001ULL, 0x8000000080008081ULL, 0x8000000000008009ULL, + 0x8aULL, 0x88ULL, 0x80008009ULL, 0x8000000aULL, + 0x8000808bULL, 0x800000000000008bULL, 0x8000000000008089ULL, 0x8000000000008003ULL, + 0x8000000000008002ULL, 0x8000000000000080ULL, 0x800aULL, 0x800000008000000aULL, + 0x8000000080008081ULL, 0x8000000000008080ULL, 0x80000001ULL, 0x8000000080008008ULL}; /*** Helper macros to unroll the permutation. ***/ #define rol(x, s) (((x) << s) | ((x) >> (64 - s))) #define REPEAT6(e) e e e e e e #define REPEAT24(e) REPEAT6(e e e e) #define REPEAT5(e) e e e e e -#define FOR5(v, s, e) \ - v = 0; \ - REPEAT5(e; v += s;) +#define FOR5(v, s, e) \ + v = 0; \ + REPEAT5(e; v += s;) /*** Keccak-f[1600] ***/ static inline void keccakf(void* state) { - uint64_t* a = (uint64_t*)state; - uint64_t b[5] = {0}; - uint64_t t = 0; - uint8_t x, y; + uint64_t* a = (uint64_t*)state; + uint64_t b[5] = {0}; + uint64_t t = 0; + uint8_t x, y; - for (int i = 0; i < 24; i++) { - // Theta - FOR5(x, 1, - b[x] = 0; - FOR5(y, 5, - b[x] ^= a[x + y]; )) - FOR5(x, 1, - FOR5(y, 5, - a[y + x] ^= b[(x + 4) % 5] ^ rol(b[(x + 1) % 5], 1); )) - // Rho and pi - t = a[1]; - x = 0; - REPEAT24(b[0] = a[pi[x]]; - a[pi[x]] = rol(t, rho[x]); - t = b[0]; - x++; ) - // Chi - FOR5(y, - 5, - FOR5(x, 1, - b[x] = a[y + x];) - FOR5(x, 1, - a[y + x] = b[x] ^ ((~b[(x + 1) % 5]) & b[(x + 2) % 5]); )) - // Iota - a[0] ^= RC[i]; - } + for (int i = 0; i < 24; i++) { + // Theta + FOR5(x, 1, + b[x] = 0; + FOR5(y, 5, + b[x] ^= a[x + y]; )) + FOR5(x, 1, + FOR5(y, 5, + a[y + x] ^= b[(x + 4) % 5] ^ rol(b[(x + 1) % 5], 1); )) + // Rho and pi + t = a[1]; + x = 0; + REPEAT24(b[0] = a[pi[x]]; + a[pi[x]] = rol(t, rho[x]); + t = b[0]; + x++; ) + // Chi + FOR5(y, + 5, + FOR5(x, 1, + b[x] = a[y + x];) + FOR5(x, 1, + a[y + x] = b[x] ^ ((~b[(x + 1) % 5]) & b[(x + 2) % 5]); )) + // Iota + a[0] ^= RC[i]; + } } /******** The FIPS202-defined functions. ********/ @@ -83,20 +83,20 @@ static inline void keccakf(void* state) { /*** Some helper macros. ***/ #define _(S) do { S } while (0) -#define FOR(i, ST, L, S) \ - _(for (size_t i = 0; i < L; i += ST) { S; }) -#define mkapply_ds(NAME, S) \ - static inline void NAME(uint8_t* dst, \ - const uint8_t* src, \ - size_t len) { \ - FOR(i, 1, len, S); \ - } -#define mkapply_sd(NAME, S) \ - static inline void NAME(const uint8_t* src, \ - uint8_t* dst, \ - size_t len) { \ - FOR(i, 1, len, S); \ - } +#define FOR(i, ST, L, S) \ + _(for (size_t i = 0; i < L; i += ST) { S; }) +#define mkapply_ds(NAME, S) \ + static inline void NAME(uint8_t* dst, \ + const uint8_t* src, \ + size_t len) { \ + FOR(i, 1, len, S); \ + } +#define mkapply_sd(NAME, S) \ + static inline void NAME(const uint8_t* src, \ + uint8_t* dst, \ + size_t len) { \ + FOR(i, 1, len, S); \ + } mkapply_ds(xorin, dst[i] ^= src[i]) // xorin mkapply_sd(setout, dst[i] = src[i]) // setout @@ -105,47 +105,47 @@ mkapply_sd(setout, dst[i] = src[i]) // setout #define Plen 200 // Fold P*F over the full blocks of an input. -#define foldP(I, L, F) \ - while (L >= rate) { \ - F(a, I, rate); \ - P(a); \ - I += rate; \ - L -= rate; \ - } +#define foldP(I, L, F) \ + while (L >= rate) { \ + F(a, I, rate); \ + P(a); \ + I += rate; \ + L -= rate; \ + } /** The sponge-based hash construction. **/ static inline int hash(uint8_t* out, size_t outlen, - const uint8_t* in, size_t inlen, - size_t rate, uint8_t delim) { - if ((out == NULL) || ((in == NULL) && inlen != 0) || (rate >= Plen)) { - return -1; - } - uint8_t a[Plen] = {0}; - // Absorb input. - foldP(in, inlen, xorin); - // Xor in the DS and pad frame. - a[inlen] ^= delim; - a[rate - 1] ^= 0x80; - // Xor in the last block. - xorin(a, in, inlen); - // Apply P - P(a); - // Squeeze output. - foldP(out, outlen, setout); - setout(a, out, outlen); - memset(a, 0, 200); - return 0; + const uint8_t* in, size_t inlen, + size_t rate, uint8_t delim) { + if ((out == NULL) || ((in == NULL) && inlen != 0) || (rate >= Plen)) { + return -1; + } + uint8_t a[Plen] = {0}; + // Absorb input. + foldP(in, inlen, xorin); + // Xor in the DS and pad frame. + a[inlen] ^= delim; + a[rate - 1] ^= 0x80; + // Xor in the last block. + xorin(a, in, inlen); + // Apply P + P(a); + // Squeeze output. + foldP(out, outlen, setout); + setout(a, out, outlen); + memset(a, 0, 200); + return 0; } -#define defsha3(bits) \ - int sha3_##bits(uint8_t* out, size_t outlen, \ - const uint8_t* in, size_t inlen) { \ - if (outlen > (bits/8)) { \ - return -1; \ - } \ - return hash(out, outlen, in, inlen, 200 - (bits / 4), 0x01); \ - } +#define defsha3(bits) \ + int sha3_##bits(uint8_t* out, size_t outlen, \ + const uint8_t* in, size_t inlen) { \ + if (outlen > (bits/8)) { \ + return -1; \ + } \ + return hash(out, outlen, in, inlen, 200 - (bits / 4), 0x01); \ + } /*** FIPS202 SHA3 FOFs ***/ defsha3(256) -defsha3(512)
\ No newline at end of file +defsha3(512) diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3.h index 84dca241b..a38006292 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3.h @@ -8,22 +8,22 @@ extern "C" { #include <stdint.h> #include <stdlib.h> -struct ethash_blockhash; +struct ethash_h256; #define decsha3(bits) \ - int sha3_##bits(uint8_t*, size_t, const uint8_t*, size_t); + int sha3_##bits(uint8_t*, size_t, uint8_t const*, size_t); decsha3(256) decsha3(512) -static inline void SHA3_256(struct ethash_blockhash const* ret, uint8_t const *data, const size_t size) +static inline void SHA3_256(struct ethash_h256 const* ret, uint8_t const* data, size_t const size) { - sha3_256((uint8_t*)ret, 32, data, size); + sha3_256((uint8_t*)ret, 32, data, size); } -static inline void SHA3_512(uint8_t *ret, uint8_t const *data, const size_t size) +static inline void SHA3_512(uint8_t* ret, uint8_t const* data, size_t const size) { - sha3_512(ret, 64, data, size); + sha3_512(ret, 64, data, size); } #ifdef __cplusplus diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.cpp b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.cpp index e4d8b1855..2a7c02664 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.cpp +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.cpp @@ -23,13 +23,15 @@ #include <cryptopp/sha3.h> extern "C" { -struct ethash_blockhash; -typedef struct ethash_blockhash ethash_blockhash_t; -void SHA3_256(ethash_blockhash_t const* ret, const uint8_t *data, size_t size) { - CryptoPP::SHA3_256().CalculateDigest((uint8_t*)ret, data, size); +struct ethash_h256; +typedef struct ethash_h256 ethash_h256_t; +void SHA3_256(ethash_h256_t const* ret, uint8_t const* data, size_t size) +{ + CryptoPP::SHA3_256().CalculateDigest((uint8_t*)ret, data, size); } -void SHA3_512(uint8_t *const ret, const uint8_t *data, size_t size) { - CryptoPP::SHA3_512().CalculateDigest(ret, data, size); +void SHA3_512(uint8_t* const ret, uint8_t const* data, size_t size) +{ + CryptoPP::SHA3_512().CalculateDigest(ret, data, size); } } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.h index 6b257b87c..9edc407d5 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.h @@ -8,11 +8,10 @@ extern "C" { #endif -struct ethash_blockhash; -typedef struct ethash_blockhash ethash_blockhash_t; +struct ethash_h256; -void SHA3_256(ethash_blockhash_t *const ret, const uint8_t *data, size_t size); -void SHA3_512(uint8_t *const ret, const uint8_t *data, size_t size); +void SHA3_256(struct ethash_h256 const* ret, uint8_t const* data, size_t size); +void SHA3_512(uint8_t* const ret, uint8_t const* data, size_t size); #ifdef __cplusplus } diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/util.h b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/util.h index ba8957815..0d2307f3d 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/util.h +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/util.h @@ -26,11 +26,11 @@ extern "C" { #endif -#ifdef _MSC_VER -void debugf(const char *str, ...); -#else -#define debugf printf -#endif +//#ifdef _MSC_VER +void debugf(char const* str, ...); +//#else +//#define debugf printf +//#endif static inline uint32_t min_u32(uint32_t a, uint32_t b) { diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/util.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/util_win32.c index fbf268b7d..268e6db05 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/util.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/util_win32.c @@ -22,20 +22,17 @@ #include <stdio.h> #include "util.h" -#ifdef _MSC_VER // foward declare without all of Windows.h -__declspec(dllimport) void __stdcall OutputDebugStringA(const char* lpOutputString); +__declspec(dllimport) void __stdcall OutputDebugStringA(char const* lpOutputString); -void debugf(const char *str, ...) +void debugf(char const* str, ...) { va_list args; - va_start(args, str); + va_start(args, str); char buf[1<<16]; _vsnprintf_s(buf, sizeof(buf), sizeof(buf), str, args); buf[sizeof(buf)-1] = '\0'; OutputDebugStringA(buf); } - -#endif diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c index 9024bd584..d77b9761b 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c @@ -13,16 +13,16 @@ #define PY_CONST_STRING_FORMAT "s" #endif -#define MIX_WORDS (MIX_BYTES/4) +#define MIX_WORDS (ETHASH_MIX_BYTES/4) static PyObject * get_cache_size(PyObject *self, PyObject *args) { unsigned long block_number; if (!PyArg_ParseTuple(args, "k", &block_number)) return 0; - if (block_number >= EPOCH_LENGTH * 2048) { + if (block_number >= ETHASH_EPOCH_LENGTH * 2048) { char error_message[1024]; - sprintf(error_message, "Block number must be less than %i (was %lu)", EPOCH_LENGTH * 2048, block_number); + sprintf(error_message, "Block number must be less than %i (was %lu)", ETHASH_EPOCH_LENGTH * 2048, block_number); PyErr_SetString(PyExc_ValueError, error_message); return 0; @@ -36,9 +36,9 @@ get_full_size(PyObject *self, PyObject *args) { unsigned long block_number; if (!PyArg_ParseTuple(args, "k", &block_number)) return 0; - if (block_number >= EPOCH_LENGTH * 2048) { + if (block_number >= ETHASH_EPOCH_LENGTH * 2048) { char error_message[1024]; - sprintf(error_message, "Block number must be less than %i (was %lu)", EPOCH_LENGTH * 2048, block_number); + sprintf(error_message, "Block number must be less than %i (was %lu)", ETHASH_EPOCH_LENGTH * 2048, block_number); PyErr_SetString(PyExc_ValueError, error_message); return 0; @@ -69,7 +69,7 @@ mkcache_bytes(PyObject *self, PyObject *args) { params.cache_size = (size_t) cache_size; ethash_cache cache; cache.mem = malloc(cache_size); - ethash_mkcache(&cache, ¶ms, (ethash_blockhash_t *) seed); + ethash_mkcache(&cache, ¶ms, (ethash_h256_t *) seed); PyObject * val = Py_BuildValue(PY_STRING_FORMAT, cache.mem, cache_size); free(cache.mem); return val; @@ -92,9 +92,9 @@ calc_dataset_bytes(PyObject *self, PyObject *args) { return 0; } - if (cache_size % HASH_BYTES != 0) { + if (cache_size % ETHASH_HASH_BYTES != 0) { char error_message[1024]; - sprintf(error_message, "The size of the cache must be a multiple of %i bytes (was %i)", HASH_BYTES, cache_size); + sprintf(error_message, "The size of the cache must be a multiple of %i bytes (was %i)", ETHASH_HASH_BYTES, cache_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } @@ -127,9 +127,9 @@ hashimoto_light(PyObject *self, PyObject *args) { PyErr_SetString(PyExc_ValueError, error_message); return 0; } - if (cache_size % HASH_BYTES != 0) { + if (cache_size % ETHASH_HASH_BYTES != 0) { char error_message[1024]; - sprintf(error_message, "The size of the cache must be a multiple of %i bytes (was %i)", HASH_BYTES, cache_size); + sprintf(error_message, "The size of the cache must be a multiple of %i bytes (was %i)", ETHASH_HASH_BYTES, cache_size); PyErr_SetString(PyExc_ValueError, error_message); return 0; } @@ -146,7 +146,7 @@ hashimoto_light(PyObject *self, PyObject *args) { params.full_size = (size_t) full_size; ethash_cache cache; cache.mem = (void *) cache_bytes; - ethash_light(&out, &cache, ¶ms, (ethash_blockhash_t *) header, nonce); + ethash_light(&out, &cache, ¶ms, (ethash_h256_t *) header, nonce); return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "," PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "}", "mix digest", &out.mix_hash, 32, "result", &out.result, 32); @@ -181,7 +181,7 @@ hashimoto_full(PyObject *self, PyObject *args) { ethash_return_value out; ethash_params params; params.full_size = (size_t) full_size; - ethash_full(&out, (void *) full_bytes, ¶ms, (ethash_blockhash_t *) header, nonce); + ethash_full(&out, (void *) full_bytes, ¶ms, (ethash_h256_t *) header, nonce); return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "}", "mix digest", &out.mix_hash, 32, "result", &out.result, 32); @@ -227,9 +227,9 @@ mine(PyObject *self, PyObject *args) { // TODO: Multi threading? do { - ethash_full(&out, (void *) full_bytes, ¶ms, (const ethash_blockhash_t *) header, nonce++); + ethash_full(&out, (void *) full_bytes, ¶ms, (const ethash_h256_t *) header, nonce++); // TODO: disagrees with the spec https://github.com/ethereum/wiki/wiki/Ethash#mining - } while (!ethash_check_difficulty(&out.result, (const ethash_blockhash_t *) difficulty)); + } while (!ethash_check_difficulty(&out.result, (const ethash_h256_t *) difficulty)); return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":K}", "mix digest", &out.mix_hash, 32, @@ -243,15 +243,14 @@ get_seedhash(PyObject *self, PyObject *args) { unsigned long block_number; if (!PyArg_ParseTuple(args, "k", &block_number)) return 0; - if (block_number >= EPOCH_LENGTH * 2048) { + if (block_number >= ETHASH_EPOCH_LENGTH * 2048) { char error_message[1024]; - sprintf(error_message, "Block number must be less than %i (was %lu)", EPOCH_LENGTH * 2048, block_number); + sprintf(error_message, "Block number must be less than %i (was %lu)", ETHASH_EPOCH_LENGTH * 2048, block_number); PyErr_SetString(PyExc_ValueError, error_message); return 0; } - ethash_blockhash_t seedhash; - ethash_get_seedhash(&seedhash, block_number); + ethash_h256_t seedhash = ethash_get_seedhash(block_number); return Py_BuildValue(PY_STRING_FORMAT, (char *) &seedhash, 32); } @@ -306,17 +305,17 @@ static struct PyModuleDef PyethashModule = { PyMODINIT_FUNC PyInit_pyethash(void) { PyObject *module = PyModule_Create(&PyethashModule); // Following Spec: https://github.com/ethereum/wiki/wiki/Ethash#definitions - PyModule_AddIntConstant(module, "REVISION", (long) REVISION); - PyModule_AddIntConstant(module, "DATASET_BYTES_INIT", (long) DATASET_BYTES_INIT); - PyModule_AddIntConstant(module, "DATASET_BYTES_GROWTH", (long) DATASET_BYTES_GROWTH); - PyModule_AddIntConstant(module, "CACHE_BYTES_INIT", (long) CACHE_BYTES_INIT); - PyModule_AddIntConstant(module, "CACHE_BYTES_GROWTH", (long) CACHE_BYTES_GROWTH); - PyModule_AddIntConstant(module, "EPOCH_LENGTH", (long) EPOCH_LENGTH); - PyModule_AddIntConstant(module, "MIX_BYTES", (long) MIX_BYTES); - PyModule_AddIntConstant(module, "HASH_BYTES", (long) HASH_BYTES); - PyModule_AddIntConstant(module, "DATASET_PARENTS", (long) DATASET_PARENTS); - PyModule_AddIntConstant(module, "CACHE_ROUNDS", (long) CACHE_ROUNDS); - PyModule_AddIntConstant(module, "ACCESSES", (long) ACCESSES); + PyModule_AddIntConstant(module, "REVISION", (long) ETHASH_REVISION); + PyModule_AddIntConstant(module, "DATASET_BYTES_INIT", (long) ETHASH_DATASET_BYTES_INIT); + PyModule_AddIntConstant(module, "DATASET_BYTES_GROWTH", (long) ETHASH_DATASET_BYTES_GROWTH); + PyModule_AddIntConstant(module, "CACHE_BYTES_INIT", (long) ETHASH_CACHE_BYTES_INIT); + PyModule_AddIntConstant(module, "CACHE_BYTES_GROWTH", (long) ETHASH_CACHE_BYTES_GROWTH); + PyModule_AddIntConstant(module, "EPOCH_LENGTH", (long) ETHASH_EPOCH_LENGTH); + PyModule_AddIntConstant(module, "MIX_BYTES", (long) ETHASH_MIX_BYTES); + PyModule_AddIntConstant(module, "HASH_BYTES", (long) ETHASH_HASH_BYTES); + PyModule_AddIntConstant(module, "DATASET_PARENTS", (long) ETHASH_DATASET_PARENTS); + PyModule_AddIntConstant(module, "CACHE_ROUNDS", (long) ETHASH_CACHE_ROUNDS); + PyModule_AddIntConstant(module, "ACCESSES", (long) ETHASH_ACCESSES); return module; } #else @@ -324,16 +323,16 @@ PyMODINIT_FUNC initpyethash(void) { PyObject *module = Py_InitModule("pyethash", PyethashMethods); // Following Spec: https://github.com/ethereum/wiki/wiki/Ethash#definitions - PyModule_AddIntConstant(module, "REVISION", (long) REVISION); - PyModule_AddIntConstant(module, "DATASET_BYTES_INIT", (long) DATASET_BYTES_INIT); - PyModule_AddIntConstant(module, "DATASET_BYTES_GROWTH", (long) DATASET_BYTES_GROWTH); - PyModule_AddIntConstant(module, "CACHE_BYTES_INIT", (long) CACHE_BYTES_INIT); - PyModule_AddIntConstant(module, "CACHE_BYTES_GROWTH", (long) CACHE_BYTES_GROWTH); - PyModule_AddIntConstant(module, "EPOCH_LENGTH", (long) EPOCH_LENGTH); - PyModule_AddIntConstant(module, "MIX_BYTES", (long) MIX_BYTES); - PyModule_AddIntConstant(module, "HASH_BYTES", (long) HASH_BYTES); - PyModule_AddIntConstant(module, "DATASET_PARENTS", (long) DATASET_PARENTS); - PyModule_AddIntConstant(module, "CACHE_ROUNDS", (long) CACHE_ROUNDS); - PyModule_AddIntConstant(module, "ACCESSES", (long) ACCESSES); + PyModule_AddIntConstant(module, "REVISION", (long) ETHASH_REVISION); + PyModule_AddIntConstant(module, "DATASET_BYTES_INIT", (long) ETHASH_DATASET_BYTES_INIT); + PyModule_AddIntConstant(module, "DATASET_BYTES_GROWTH", (long) ETHASH_DATASET_BYTES_GROWTH); + PyModule_AddIntConstant(module, "CACHE_BYTES_INIT", (long) ETHASH_CACHE_BYTES_INIT); + PyModule_AddIntConstant(module, "CACHE_BYTES_GROWTH", (long) ETHASH_CACHE_BYTES_GROWTH); + PyModule_AddIntConstant(module, "EPOCH_LENGTH", (long) ETHASH_EPOCH_LENGTH); + PyModule_AddIntConstant(module, "MIX_BYTES", (long) ETHASH_MIX_BYTES); + PyModule_AddIntConstant(module, "HASH_BYTES", (long) ETHASH_HASH_BYTES); + PyModule_AddIntConstant(module, "DATASET_PARENTS", (long) ETHASH_DATASET_PARENTS); + PyModule_AddIntConstant(module, "CACHE_ROUNDS", (long) ETHASH_CACHE_ROUNDS); + PyModule_AddIntConstant(module, "ACCESSES", (long) ETHASH_ACCESSES); } #endif diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/CMakeLists.txt b/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/CMakeLists.txt index dd91d8a92..f94531c3d 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/CMakeLists.txt +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/CMakeLists.txt @@ -27,13 +27,16 @@ IF( NOT Boost_FOUND ) find_package(Boost 1.48.0 COMPONENTS unit_test_framework system filesystem) ENDIF() -IF( Boost_FOUND ) +IF (Boost_FOUND) + message(STATUS "boost header: ${Boost_INCLUDE_DIRS}") + message(STATUS "boost libs : ${Boost_LIBRARIES}") + include_directories( ${Boost_INCLUDE_DIR} ) include_directories(../../src) - link_directories ( ${Boost_LIBRARY_DIRS} ) + link_directories(${Boost_LIBRARY_DIRS}) file(GLOB HEADERS "*.h") - if (NOT MSVC) + if ((NOT MSVC) AND (NOT APPLE)) ADD_DEFINITIONS(-DBOOST_TEST_DYN_LINK) endif() if (NOT CRYPTOPP_FOUND) @@ -48,11 +51,11 @@ IF( Boost_FOUND ) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ") endif() - add_executable (Test test.cpp ${HEADERS}) + add_executable (Test "./test.cpp" ${HEADERS}) target_link_libraries(Test ${ETHHASH_LIBS}) target_link_libraries(Test ${Boost_FILESYSTEM_LIBRARIES}) target_link_libraries(Test ${Boost_SYSTEM_LIBRARIES}) - target_link_libraries (Test ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY}) + target_link_libraries(Test ${Boost_UNIT_TEST_FRAMEWORK_LIBRARIES}) if (CRYPTOPP_FOUND) TARGET_LINK_LIBRARIES(Test ${CRYPTOPP_LIBRARIES}) diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp b/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp index ffe8d53f3..55fe02316 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp @@ -12,6 +12,11 @@ #include <libethash/sha3.h> #endif // WITH_CRYPTOPP +#ifdef _WIN32 +#include <windows.h> +#include <Shlobj.h> +#endif + #define BOOST_TEST_MODULE Daggerhashimoto #define BOOST_TEST_MAIN @@ -22,367 +27,609 @@ #include <boost/test/unit_test.hpp> using namespace std; +using byte = uint8_t; +using bytes = std::vector<byte>; namespace fs = boost::filesystem; // Just an alloca "wrapper" to silence uint64_t to size_t conversion warnings in windows // consider replacing alloca calls with something better though! #define our_alloca(param__) alloca((size_t)(param__)) -std::string bytesToHexString(const uint8_t *str, const uint64_t s) { - std::ostringstream ret; - for (size_t i = 0; i < s; ++i) - ret << std::hex << std::setfill('0') << std::setw(2) << std::nouppercase << (int) str[i]; +// some functions taken from eth::dev for convenience. +std::string bytesToHexString(const uint8_t *str, const uint64_t s) +{ + std::ostringstream ret; + + for (size_t i = 0; i < s; ++i) + ret << std::hex << std::setfill('0') << std::setw(2) << std::nouppercase << (int) str[i]; + + return ret.str(); +} + +std::string blockhashToHexString(ethash_h256_t* _hash) +{ + return bytesToHexString((uint8_t*)_hash, 32); +} - return ret.str(); +int fromHex(char _i) +{ + if (_i >= '0' && _i <= '9') + return _i - '0'; + if (_i >= 'a' && _i <= 'f') + return _i - 'a' + 10; + if (_i >= 'A' && _i <= 'F') + return _i - 'A' + 10; + + BOOST_REQUIRE_MESSAGE(false, "should never get here"); + return -1; } -std::string blockhashToHexString(ethash_blockhash_t *hash) { - return bytesToHexString((uint8_t*)hash, 32); +bytes hexStringToBytes(std::string const& _s) +{ + unsigned s = (_s[0] == '0' && _s[1] == 'x') ? 2 : 0; + std::vector<uint8_t> ret; + ret.reserve((_s.size() - s + 1) / 2); + + if (_s.size() % 2) + try + { + ret.push_back(fromHex(_s[s++])); + } + catch (...) + { + ret.push_back(0); + } + for (unsigned i = s; i < _s.size(); i += 2) + try + { + ret.push_back((byte)(fromHex(_s[i]) * 16 + fromHex(_s[i + 1]))); + } + catch (...){ + ret.push_back(0); + } + return ret; } +ethash_h256_t stringToBlockhash(std::string const& _s) +{ + ethash_h256_t ret; + bytes b = hexStringToBytes(_s); + memcpy(&ret, b.data(), b.size()); + return ret; +} + + + BOOST_AUTO_TEST_CASE(fnv_hash_check) { - uint32_t x = 1235U; - const uint32_t - y = 9999999U, - expected = (FNV_PRIME * x) ^y; + uint32_t x = 1235U; + const uint32_t + y = 9999999U, + expected = (FNV_PRIME * x) ^y; - x = fnv_hash(x, y); + x = fnv_hash(x, y); - BOOST_REQUIRE_MESSAGE(x == expected, - "\nexpected: " << expected << "\n" - << "actual: " << x << "\n"); + BOOST_REQUIRE_MESSAGE(x == expected, + "\nexpected: " << expected << "\n" + << "actual: " << x << "\n"); } BOOST_AUTO_TEST_CASE(SHA256_check) { - ethash_blockhash_t input; - ethash_blockhash_t out; - memcpy(&input, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); - SHA3_256(&out, (uint8_t*)&input, 32); - const std::string - expected = "2b5ddf6f4d21c23de216f44d5e4bdc68e044b71897837ea74c83908be7037cd7", - actual = bytesToHexString((uint8_t*)&out, 32); - BOOST_REQUIRE_MESSAGE(expected == actual, - "\nexpected: " << expected.c_str() << "\n" - << "actual: " << actual.c_str() << "\n"); + ethash_h256_t input; + ethash_h256_t out; + memcpy(&input, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + SHA3_256(&out, (uint8_t*)&input, 32); + const std::string + expected = "2b5ddf6f4d21c23de216f44d5e4bdc68e044b71897837ea74c83908be7037cd7", + actual = bytesToHexString((uint8_t*)&out, 32); + BOOST_REQUIRE_MESSAGE(expected == actual, + "\nexpected: " << expected.c_str() << "\n" + << "actual: " << actual.c_str() << "\n"); } BOOST_AUTO_TEST_CASE(SHA512_check) { - uint8_t input[64], out[64]; - memcpy(input, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 64); - SHA3_512(out, input, 64); - const std::string - expected = "0be8a1d334b4655fe58c6b38789f984bb13225684e86b20517a55ab2386c7b61c306f25e0627c60064cecd6d80cd67a82b3890bd1289b7ceb473aad56a359405", - actual = bytesToHexString(out, 64); - BOOST_REQUIRE_MESSAGE(expected == actual, - "\nexpected: " << expected.c_str() << "\n" - << "actual: " << actual.c_str() << "\n"); + uint8_t input[64], out[64]; + memcpy(input, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 64); + SHA3_512(out, input, 64); + const std::string + expected = "0be8a1d334b4655fe58c6b38789f984bb13225684e86b20517a55ab2386c7b61c306f25e0627c60064cecd6d80cd67a82b3890bd1289b7ceb473aad56a359405", + actual = bytesToHexString(out, 64); + BOOST_REQUIRE_MESSAGE(expected == actual, + "\nexpected: " << expected.c_str() << "\n" + << "actual: " << actual.c_str() << "\n"); +} + +BOOST_AUTO_TEST_CASE(test_swap_endian32) { + uint32_t v32 = (uint32_t)0xBAADF00D; + v32 = ethash_swap_u32(v32); + BOOST_REQUIRE_EQUAL(v32, (uint32_t)0x0DF0ADBA); +} + +BOOST_AUTO_TEST_CASE(test_swap_endian64) { + uint64_t v64 = (uint64_t)0xFEE1DEADDEADBEEF; + v64 = ethash_swap_u64(v64); + BOOST_REQUIRE_EQUAL(v64, (uint64_t)0xEFBEADDEADDEE1FE); } BOOST_AUTO_TEST_CASE(ethash_params_init_genesis_check) { - ethash_params params; - ethash_params_init(¶ms, 0); - BOOST_REQUIRE_MESSAGE(params.full_size < DATASET_BYTES_INIT, - "\nfull size: " << params.full_size << "\n" - << "should be less than or equal to: " << DATASET_BYTES_INIT << "\n"); - BOOST_REQUIRE_MESSAGE(params.full_size + 20 * MIX_BYTES >= DATASET_BYTES_INIT, - "\nfull size + 20*MIX_BYTES: " << params.full_size + 20 * MIX_BYTES << "\n" - << "should be greater than or equal to: " << DATASET_BYTES_INIT << "\n"); - BOOST_REQUIRE_MESSAGE(params.cache_size < DATASET_BYTES_INIT / 32, - "\ncache size: " << params.cache_size << "\n" - << "should be less than or equal to: " << DATASET_BYTES_INIT / 32 << "\n"); + uint64_t full_size = ethash_get_datasize(0); + uint64_t cache_size = ethash_get_cachesize(0); + BOOST_REQUIRE_MESSAGE(full_size < ETHASH_DATASET_BYTES_INIT, + "\nfull size: " << full_size << "\n" + << "should be less than or equal to: " << ETHASH_DATASET_BYTES_INIT << "\n"); + BOOST_REQUIRE_MESSAGE(full_size + 20 * ETHASH_MIX_BYTES >= ETHASH_DATASET_BYTES_INIT, + "\nfull size + 20*MIX_BYTES: " << full_size + 20 * ETHASH_MIX_BYTES << "\n" + << "should be greater than or equal to: " << ETHASH_DATASET_BYTES_INIT << "\n"); + BOOST_REQUIRE_MESSAGE(cache_size < ETHASH_DATASET_BYTES_INIT / 32, + "\ncache size: " << cache_size << "\n" + << "should be less than or equal to: " << ETHASH_DATASET_BYTES_INIT / 32 << "\n"); } BOOST_AUTO_TEST_CASE(ethash_params_init_genesis_calcifide_check) { - ethash_params params; - ethash_params_init(¶ms, 0); - const uint32_t expected_full_size = 1073739904; - const uint32_t expected_cache_size = 16776896; - BOOST_REQUIRE_MESSAGE(params.full_size == expected_full_size, - "\nexpected: " << expected_cache_size << "\n" - << "actual: " << params.full_size << "\n"); - BOOST_REQUIRE_MESSAGE(params.cache_size == expected_cache_size, - "\nexpected: " << expected_cache_size << "\n" - << "actual: " << params.cache_size << "\n"); + uint64_t full_size = ethash_get_datasize(0); + uint64_t cache_size = ethash_get_cachesize(0); + const uint32_t expected_full_size = 1073739904; + const uint32_t expected_cache_size = 16776896; + BOOST_REQUIRE_MESSAGE(full_size == expected_full_size, + "\nexpected: " << expected_cache_size << "\n" + << "actual: " << full_size << "\n"); + BOOST_REQUIRE_MESSAGE(cache_size == expected_cache_size, + "\nexpected: " << expected_cache_size << "\n" + << "actual: " << cache_size << "\n"); } -BOOST_AUTO_TEST_CASE(light_and_full_client_checks) { - ethash_params params; - ethash_blockhash_t seed; - ethash_blockhash_t hash; - ethash_blockhash_t difficulty; - ethash_return_value light_out; - ethash_return_value full_out; - memcpy(&seed, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); - memcpy(&hash, "~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); - - // Set the difficulty - ethash_blockhash_set(&difficulty, 0, 197); - ethash_blockhash_set(&difficulty, 1, 90); - for (int i = 2; i < 32; i++) - ethash_blockhash_set(&difficulty, i, 255); - - ethash_params_init(¶ms, 0); - params.cache_size = 1024; - params.full_size = 1024 * 32; - ethash_cache cache; - cache.mem = our_alloca(params.cache_size); - ethash_mkcache(&cache, ¶ms, &seed); - node *full_mem = (node *) our_alloca(params.full_size); - ethash_compute_full_data(full_mem, ¶ms, &cache); - - { - const std::string - expected = "2da2b506f21070e1143d908e867962486d6b0a02e31d468fd5e3a7143aafa76a14201f63374314e2a6aaf84ad2eb57105dea3378378965a1b3873453bb2b78f9a8620b2ebeca41fbc773bb837b5e724d6eb2de570d99858df0d7d97067fb8103b21757873b735097b35d3bea8fd1c359a9e8a63c1540c76c9784cf8d975e995ca8620b2ebeca41fbc773bb837b5e724d6eb2de570d99858df0d7d97067fb8103b21757873b735097b35d3bea8fd1c359a9e8a63c1540c76c9784cf8d975e995ca8620b2ebeca41fbc773bb837b5e724d6eb2de570d99858df0d7d97067fb8103b21757873b735097b35d3bea8fd1c359a9e8a63c1540c76c9784cf8d975e995c259440b89fa3481c2c33171477c305c8e1e421f8d8f6d59585449d0034f3e421808d8da6bbd0b6378f567647cc6c4ba6c434592b198ad444e7284905b7c6adaf70bf43ec2daa7bd5e8951aa609ab472c124cf9eba3d38cff5091dc3f58409edcc386c743c3bd66f92408796ee1e82dd149eaefbf52b00ce33014a6eb3e50625413b072a58bc01da28262f42cbe4f87d4abc2bf287d15618405a1fe4e386fcdafbb171064bd99901d8f81dd6789396ce5e364ac944bbbd75a7827291c70b42d26385910cd53ca535ab29433dd5c5714d26e0dce95514c5ef866329c12e958097e84462197c2b32087849dab33e88b11da61d52f9dbc0b92cc61f742c07dbbf751c49d7678624ee60dfbe62e5e8c47a03d8247643f3d16ad8c8e663953bcda1f59d7e2d4a9bf0768e789432212621967a8f41121ad1df6ae1fa78782530695414c6213942865b2730375019105cae91a4c17a558d4b63059661d9f108362143107babe0b848de412e4da59168cce82bfbff3c99e022dd6ac1e559db991f2e3f7bb910cefd173e65ed00a8d5d416534e2c8416ff23977dbf3eb7180b75c71580d08ce95efeb9b0afe904ea12285a392aff0c8561ff79fca67f694a62b9e52377485c57cc3598d84cac0a9d27960de0cc31ff9bbfe455acaa62c8aa5d2cce96f345da9afe843d258a99c4eaf3650fc62efd81c7b81cd0d534d2d71eeda7a6e315d540b4473c80f8730037dc2ae3e47b986240cfc65ccc565f0d8cde0bc68a57e39a271dda57440b3598bee19f799611d25731a96b5dbbbefdff6f4f656161462633030d62560ea4e9c161cf78fc96a2ca5aaa32453a6c5dea206f766244e8c9d9a8dc61185ce37f1fc804459c5f07434f8ecb34141b8dcae7eae704c950b55556c5f40140c3714b45eddb02637513268778cbf937a33e4e33183685f9deb31ef54e90161e76d969587dd782eaa94e289420e7c2ee908517f5893a26fdb5873d68f92d118d4bcf98d7a4916794d6ab290045e30f9ea00ca547c584b8482b0331ba1539a0f2714fddc3a0b06b0cfbb6a607b8339c39bcfd6640b1f653e9d70ef6c985b", - actual = bytesToHexString((uint8_t const *) cache.mem, params.cache_size); - - BOOST_REQUIRE_MESSAGE(expected == actual, - "\nexpected: " << expected.c_str() << "\n" - << "actual: " << actual.c_str() << "\n"); - } - - - { - node node; - ethash_calculate_dag_item(&node, 0, ¶ms, &cache); - const std::string - actual = bytesToHexString((uint8_t const *) &node, sizeof(node)), - expected = "b1698f829f90b35455804e5185d78f549fcb1bdce2bee006d4d7e68eb154b596be1427769eb1c3c3e93180c760af75f81d1023da6a0ffbe321c153a7c0103597"; - BOOST_REQUIRE_MESSAGE(actual == expected, - "\n" << "expected: " << expected.c_str() << "\n" - << "actual: " << actual.c_str() << "\n"); - } - - { - for (int i = 0; i < params.full_size / sizeof(node); ++i) { - for (uint32_t j = 0; j < 32; ++j) { - node expected_node; - ethash_calculate_dag_item(&expected_node, j, ¶ms, &cache); - const std::string - actual = bytesToHexString((uint8_t const *) &(full_mem[j]), sizeof(node)), - expected = bytesToHexString((uint8_t const *) &expected_node, sizeof(node)); - BOOST_REQUIRE_MESSAGE(actual == expected, - "\ni: " << j << "\n" - << "expected: " << expected.c_str() << "\n" - << "actual: " << actual.c_str() << "\n"); - } - } - } - - { - uint64_t nonce = 0x7c7c597c; - ethash_full(&full_out, full_mem, ¶ms, &hash, nonce); - ethash_light(&light_out, &cache, ¶ms, &hash, nonce); - const std::string - light_result_string = blockhashToHexString(&light_out.result), - full_result_string = blockhashToHexString(&full_out.result); - BOOST_REQUIRE_MESSAGE(light_result_string == full_result_string, - "\nlight result: " << light_result_string.c_str() << "\n" - << "full result: " << full_result_string.c_str() << "\n"); - const std::string - light_mix_hash_string = blockhashToHexString(&light_out.mix_hash), - full_mix_hash_string = blockhashToHexString(&full_out.mix_hash); - BOOST_REQUIRE_MESSAGE(full_mix_hash_string == light_mix_hash_string, - "\nlight mix hash: " << light_mix_hash_string.c_str() << "\n" - << "full mix hash: " << full_mix_hash_string.c_str() << "\n"); - ethash_blockhash_t check_hash; - ethash_quick_hash(&check_hash, &hash, nonce, &full_out.mix_hash); - const std::string check_hash_string = blockhashToHexString(&check_hash); - BOOST_REQUIRE_MESSAGE(check_hash_string == full_result_string, - "\ncheck hash string: " << check_hash_string.c_str() << "\n" - << "full result: " << full_result_string.c_str() << "\n"); - } - { - ethash_full(&full_out, full_mem, ¶ms, &hash, 5); - std::string - light_result_string = blockhashToHexString(&light_out.result), - full_result_string = blockhashToHexString(&full_out.result); - - BOOST_REQUIRE_MESSAGE(light_result_string != full_result_string, - "\nlight result and full result should differ: " << light_result_string.c_str() << "\n"); - - ethash_light(&light_out, &cache, ¶ms, &hash, 5); - light_result_string = blockhashToHexString(&light_out.result); - BOOST_REQUIRE_MESSAGE(light_result_string == full_result_string, - "\nlight result and full result should be the same\n" - << "light result: " << light_result_string.c_str() << "\n" - << "full result: " << full_result_string.c_str() << "\n"); - std::string - light_mix_hash_string = blockhashToHexString(&light_out.mix_hash), - full_mix_hash_string = blockhashToHexString(&full_out.mix_hash); - BOOST_REQUIRE_MESSAGE(full_mix_hash_string == light_mix_hash_string, - "\nlight mix hash: " << light_mix_hash_string.c_str() << "\n" - << "full mix hash: " << full_mix_hash_string.c_str() << "\n"); - BOOST_REQUIRE_MESSAGE(ethash_check_difficulty(&full_out.result, &difficulty), - "ethash_check_difficulty failed" - ); - BOOST_REQUIRE_MESSAGE(ethash_quick_check_difficulty(&hash, 5U, &full_out.mix_hash, &difficulty), - "ethash_quick_check_difficulty failed" - ); - } +BOOST_AUTO_TEST_CASE(ethash_check_difficulty_check) { + ethash_h256_t hash; + ethash_h256_t target; + memcpy(&hash, "11111111111111111111111111111111", 32); + memcpy(&target, "22222222222222222222222222222222", 32); + BOOST_REQUIRE_MESSAGE( + ethash_check_difficulty(&hash, &target), + "\nexpected \"" << std::string((char *) &hash, 32).c_str() << "\" to have the same or less difficulty than \"" << std::string((char *) &target, 32).c_str() << "\"\n"); + BOOST_REQUIRE_MESSAGE( + ethash_check_difficulty(&hash, &hash), ""); + // "\nexpected \"" << hash << "\" to have the same or less difficulty than \"" << hash << "\"\n"); + memcpy(&target, "11111111111111111111111111111112", 32); + BOOST_REQUIRE_MESSAGE( + ethash_check_difficulty(&hash, &target), ""); + // "\nexpected \"" << hash << "\" to have the same or less difficulty than \"" << target << "\"\n"); + memcpy(&target, "11111111111111111111111111111110", 32); + BOOST_REQUIRE_MESSAGE( + !ethash_check_difficulty(&hash, &target), ""); + // "\nexpected \"" << hash << "\" to have more difficulty than \"" << target << "\"\n"); } -BOOST_AUTO_TEST_CASE(ethash_check_difficulty_check) { - ethash_blockhash_t hash; - ethash_blockhash_t target; - memcpy(&hash, "11111111111111111111111111111111", 32); - memcpy(&target, "22222222222222222222222222222222", 32); - BOOST_REQUIRE_MESSAGE( - ethash_check_difficulty(&hash, &target), - "\nexpected \"" << std::string((char *) &hash, 32).c_str() << "\" to have the same or less difficulty than \"" << std::string((char *) &target, 32).c_str() << "\"\n"); - BOOST_REQUIRE_MESSAGE( - ethash_check_difficulty(&hash, &hash), ""); - // "\nexpected \"" << hash << "\" to have the same or less difficulty than \"" << hash << "\"\n"); - memcpy(&target, "11111111111111111111111111111112", 32); - BOOST_REQUIRE_MESSAGE( - ethash_check_difficulty(&hash, &target), ""); - // "\nexpected \"" << hash << "\" to have the same or less difficulty than \"" << target << "\"\n"); - memcpy(&target, "11111111111111111111111111111110", 32); - BOOST_REQUIRE_MESSAGE( - !ethash_check_difficulty(&hash, &target), ""); - // "\nexpected \"" << hash << "\" to have more difficulty than \"" << target << "\"\n"); +BOOST_AUTO_TEST_CASE(test_ethash_io_mutable_name) { + char mutable_name[DAG_MUTABLE_NAME_MAX_SIZE]; + // should have at least 8 bytes provided since this is what we test :) + ethash_h256_t seed1 = ethash_h256_static_init(0, 10, 65, 255, 34, 55, 22, 8); + ethash_io_mutable_name(1, &seed1, mutable_name); + BOOST_REQUIRE_EQUAL(0, strcmp(mutable_name, "1_000a41ff22371608")); + ethash_h256_t seed2 = ethash_h256_static_init(0, 0, 0, 0, 0, 0, 0, 0); + ethash_io_mutable_name(44, &seed2, mutable_name); + BOOST_REQUIRE_EQUAL(0, strcmp(mutable_name, "44_0000000000000000")); } BOOST_AUTO_TEST_CASE(test_ethash_dir_creation) { - ethash_blockhash_t seedhash; - memset(&seedhash, 0, 32); - BOOST_REQUIRE_EQUAL( - ETHASH_IO_MEMO_MISMATCH, - ethash_io_prepare("./test_ethash_directory/", seedhash) - ); - - // let's make sure that the directory was created - BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/"))); - - // cleanup - fs::remove_all("./test_ethash_directory/"); + ethash_h256_t seedhash; + FILE *f = NULL; + memset(&seedhash, 0, 32); + BOOST_REQUIRE_EQUAL( + ETHASH_IO_MEMO_MISMATCH, + ethash_io_prepare("./test_ethash_directory/", seedhash, &f, 64, false) + ); + BOOST_REQUIRE(f); + + // let's make sure that the directory was created + BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/"))); + + // cleanup + fclose(f); + fs::remove_all("./test_ethash_directory/"); +} + +BOOST_AUTO_TEST_CASE(test_ethash_io_memo_file_match) { + uint64_t full_size; + uint64_t cache_size; + ethash_h256_t seed; + ethash_h256_t hash; + FILE* f; + memcpy(&seed, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + memcpy(&hash, "~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + + cache_size = 1024; + full_size = 1024 * 32; + + ethash_light_t light = ethash_light_new_internal(cache_size, &seed); + ethash_full_t full = ethash_full_new_internal( + "./test_ethash_directory/", + seed, + full_size, + light, + NULL + ); + BOOST_ASSERT(full); + // let's make sure that the directory was created + BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/"))); + // delete the full here so that memory is properly unmapped and FILE handler freed + ethash_full_delete(full); + // and check that we have a match when checking again + BOOST_REQUIRE_EQUAL( + ETHASH_IO_MEMO_MATCH, + ethash_io_prepare("./test_ethash_directory/", seed, &f, full_size, false) + ); + BOOST_REQUIRE(f); + + // cleanup + fclose(f); + ethash_light_delete(light); + fs::remove_all("./test_ethash_directory/"); } -BOOST_AUTO_TEST_CASE(test_ethash_io_write_files_are_created) { - ethash_blockhash_t seedhash; - static const int blockn = 0; - ethash_get_seedhash(&seedhash, blockn); - BOOST_REQUIRE_EQUAL( - ETHASH_IO_MEMO_MISMATCH, - ethash_io_prepare("./test_ethash_directory/", seedhash) - ); - - // let's make sure that the directory was created - BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/"))); - - ethash_cache cache; - ethash_params params; - uint8_t *data; - uint64_t size; - ethash_params_init(¶ms, blockn); - params.cache_size = 1024; - params.full_size = 1024 * 32; - cache.mem = our_alloca(params.cache_size); - ethash_mkcache(&cache, ¶ms, &seedhash); - - BOOST_REQUIRE( - ethash_io_write("./test_ethash_directory/", ¶ms, seedhash, &cache, &data, &size) - ); - - BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full"))); - BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full.info"))); - - // cleanup - fs::remove_all("./test_ethash_directory/"); - free(data); +BOOST_AUTO_TEST_CASE(test_ethash_io_memo_file_size_mismatch) { + static const int blockn = 0; + ethash_h256_t seedhash = ethash_get_seedhash(blockn); + FILE *f = NULL; + BOOST_REQUIRE_EQUAL( + ETHASH_IO_MEMO_MISMATCH, + ethash_io_prepare("./test_ethash_directory/", seedhash, &f, 64, false) + ); + BOOST_REQUIRE(f); + fclose(f); + + // let's make sure that the directory was created + BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/"))); + // and check that we get the size mismatch detected if we request diffferent size + BOOST_REQUIRE_EQUAL( + ETHASH_IO_MEMO_SIZE_MISMATCH, + ethash_io_prepare("./test_ethash_directory/", seedhash, &f, 65, false) + ); + + // cleanup + fs::remove_all("./test_ethash_directory/"); } -BOOST_AUTO_TEST_CASE(test_ethash_io_memo_file_match) { - ethash_blockhash_t seedhash; - static const int blockn = 0; - ethash_get_seedhash(&seedhash, blockn); - BOOST_REQUIRE_EQUAL( - ETHASH_IO_MEMO_MISMATCH, - ethash_io_prepare("./test_ethash_directory/", seedhash) - ); - - // let's make sure that the directory was created - BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/"))); - - ethash_cache cache; - ethash_params params; - uint8_t *data; - uint64_t size; - ethash_params_init(¶ms, blockn); - params.cache_size = 1024; - params.full_size = 1024 * 32; - cache.mem = our_alloca(params.cache_size); - ethash_mkcache(&cache, ¶ms, &seedhash); - - BOOST_REQUIRE( - ethash_io_write("./test_ethash_directory/", ¶ms, seedhash, &cache, &data, &size) - ); - - BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full"))); - BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full.info"))); - - BOOST_REQUIRE_EQUAL( - ETHASH_IO_MEMO_MATCH, - ethash_io_prepare("./test_ethash_directory/", seedhash) - ); - - // cleanup - fs::remove_all("./test_ethash_directory/"); - free(data); +BOOST_AUTO_TEST_CASE(test_ethash_get_default_dirname) { + char result[256]; + // this is really not an easy thing to test for in a unit test, so yeah it does look ugly +#ifdef _WIN32 + char homedir[256]; + BOOST_REQUIRE(SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_PROFILE, NULL, 0, (WCHAR*)homedir))); + BOOST_REQUIRE(ethash_get_default_dirname(result, 256)); + std::string res = std::string(homedir) + std::string("\\Appdata\\Ethash\\"); +#else + char* homedir = getenv("HOME"); + BOOST_REQUIRE(ethash_get_default_dirname(result, 256)); + std::string res = std::string(homedir) + std::string("/.ethash/"); +#endif + BOOST_CHECK_MESSAGE(strcmp(res.c_str(), result) == 0, + "Expected \"" + res + "\" but got \"" + std::string(result) + "\"" + ); +} + +BOOST_AUTO_TEST_CASE(light_and_full_client_checks) { + uint64_t full_size; + uint64_t cache_size; + ethash_h256_t seed; + ethash_h256_t hash; + ethash_h256_t difficulty; + ethash_return_value_t light_out; + ethash_return_value_t full_out; + memcpy(&seed, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + memcpy(&hash, "~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + + // Set the difficulty + ethash_h256_set(&difficulty, 0, 197); + ethash_h256_set(&difficulty, 1, 90); + for (int i = 2; i < 32; i++) + ethash_h256_set(&difficulty, i, 255); + + cache_size = 1024; + full_size = 1024 * 32; + + ethash_light_t light = ethash_light_new_internal(cache_size, &seed); + ethash_full_t full = ethash_full_new_internal( + "./test_ethash_directory/", + seed, + full_size, + light, + NULL + ); + BOOST_ASSERT(full); + { + const std::string + expected = "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", + actual = bytesToHexString((uint8_t const *) light->cache, cache_size); + + BOOST_REQUIRE_MESSAGE(expected == actual, + "\nexpected: " << expected.c_str() << "\n" + << "actual: " << actual.c_str() << "\n"); + } + { + node node; + ethash_calculate_dag_item(&node, 0, light); + const std::string + actual = bytesToHexString((uint8_t const *) &node, sizeof(node)), + expected = "b1698f829f90b35455804e5185d78f549fcb1bdce2bee006d4d7e68eb154b596be1427769eb1c3c3e93180c760af75f81d1023da6a0ffbe321c153a7c0103597"; + BOOST_REQUIRE_MESSAGE(actual == expected, + "\n" << "expected: " << expected.c_str() << "\n" + << "actual: " << actual.c_str() << "\n"); + } + { + for (int i = 0; i < full_size / sizeof(node); ++i) { + for (uint32_t j = 0; j < 32; ++j) { + node expected_node; + ethash_calculate_dag_item(&expected_node, j, light); + const std::string + actual = bytesToHexString((uint8_t const *) &(full->data[j]), sizeof(node)), + expected = bytesToHexString((uint8_t const *) &expected_node, sizeof(node)); + BOOST_REQUIRE_MESSAGE(actual == expected, + "\ni: " << j << "\n" + << "expected: " << expected.c_str() << "\n" + << "actual: " << actual.c_str() << "\n"); + } + } + } + { + uint64_t nonce = 0x7c7c597c; + full_out = ethash_full_compute(full, hash, nonce); + BOOST_REQUIRE(full_out.success); + light_out = ethash_light_compute_internal(light, full_size, hash, nonce); + BOOST_REQUIRE(light_out.success); + const std::string + light_result_string = blockhashToHexString(&light_out.result), + full_result_string = blockhashToHexString(&full_out.result); + BOOST_REQUIRE_MESSAGE(light_result_string == full_result_string, + "\nlight result: " << light_result_string.c_str() << "\n" + << "full result: " << full_result_string.c_str() << "\n"); + const std::string + light_mix_hash_string = blockhashToHexString(&light_out.mix_hash), + full_mix_hash_string = blockhashToHexString(&full_out.mix_hash); + BOOST_REQUIRE_MESSAGE(full_mix_hash_string == light_mix_hash_string, + "\nlight mix hash: " << light_mix_hash_string.c_str() << "\n" + << "full mix hash: " << full_mix_hash_string.c_str() << "\n"); + ethash_h256_t check_hash; + ethash_quick_hash(&check_hash, &hash, nonce, &full_out.mix_hash); + const std::string check_hash_string = blockhashToHexString(&check_hash); + BOOST_REQUIRE_MESSAGE(check_hash_string == full_result_string, + "\ncheck hash string: " << check_hash_string.c_str() << "\n" + << "full result: " << full_result_string.c_str() << "\n"); + } + { + full_out = ethash_full_compute(full, hash, 5); + BOOST_REQUIRE(full_out.success); + std::string + light_result_string = blockhashToHexString(&light_out.result), + full_result_string = blockhashToHexString(&full_out.result); + BOOST_REQUIRE_MESSAGE(light_result_string != full_result_string, + "\nlight result and full result should differ: " << light_result_string.c_str() << "\n"); + + light_out = ethash_light_compute_internal(light, full_size, hash, 5); + BOOST_REQUIRE(light_out.success); + light_result_string = blockhashToHexString(&light_out.result); + BOOST_REQUIRE_MESSAGE(light_result_string == full_result_string, + "\nlight result and full result should be the same\n" + << "light result: " << light_result_string.c_str() << "\n" + << "full result: " << full_result_string.c_str() << "\n"); + std::string + light_mix_hash_string = blockhashToHexString(&light_out.mix_hash), + full_mix_hash_string = blockhashToHexString(&full_out.mix_hash); + BOOST_REQUIRE_MESSAGE(full_mix_hash_string == light_mix_hash_string, + "\nlight mix hash: " << light_mix_hash_string.c_str() << "\n" + << "full mix hash: " << full_mix_hash_string.c_str() << "\n"); + BOOST_REQUIRE_MESSAGE(ethash_check_difficulty(&full_out.result, &difficulty), + "ethash_check_difficulty failed" + ); + BOOST_REQUIRE_MESSAGE(ethash_quick_check_difficulty(&hash, 5U, &full_out.mix_hash, &difficulty), + "ethash_quick_check_difficulty failed" + ); + } + ethash_light_delete(light); + ethash_full_delete(full); + fs::remove_all("./test_ethash_directory/"); +} + +BOOST_AUTO_TEST_CASE(ethash_full_new_when_dag_exists_with_wrong_size) { + uint64_t full_size; + uint64_t cache_size; + ethash_h256_t seed; + ethash_h256_t hash; + ethash_return_value_t full_out; + ethash_return_value_t light_out; + memcpy(&seed, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + memcpy(&hash, "~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + + cache_size = 1024; + full_size = 1024 * 32; + + // first make a DAG file of "wrong size" + FILE *f; + BOOST_REQUIRE_EQUAL( + ETHASH_IO_MEMO_MISMATCH, + ethash_io_prepare("./test_ethash_directory/", seed, &f, 64, false) + ); + fclose(f); + + // then create new DAG, which should detect the wrong size and force create a new file + ethash_light_t light = ethash_light_new_internal(cache_size, &seed); + BOOST_ASSERT(light); + ethash_full_t full = ethash_full_new_internal( + "./test_ethash_directory/", + seed, + full_size, + light, + NULL + ); + BOOST_ASSERT(full); + { + uint64_t nonce = 0x7c7c597c; + full_out = ethash_full_compute(full, hash, nonce); + BOOST_REQUIRE(full_out.success); + light_out = ethash_light_compute_internal(light, full_size, hash, nonce); + BOOST_REQUIRE(light_out.success); + const std::string + light_result_string = blockhashToHexString(&light_out.result), + full_result_string = blockhashToHexString(&full_out.result); + BOOST_REQUIRE_MESSAGE(light_result_string == full_result_string, + "\nlight result: " << light_result_string.c_str() << "\n" + << "full result: " << full_result_string.c_str() << "\n"); + const std::string + light_mix_hash_string = blockhashToHexString(&light_out.mix_hash), + full_mix_hash_string = blockhashToHexString(&full_out.mix_hash); + BOOST_REQUIRE_MESSAGE(full_mix_hash_string == light_mix_hash_string, + "\nlight mix hash: " << light_mix_hash_string.c_str() << "\n" + << "full mix hash: " << full_mix_hash_string.c_str() << "\n"); + ethash_h256_t check_hash; + ethash_quick_hash(&check_hash, &hash, nonce, &full_out.mix_hash); + const std::string check_hash_string = blockhashToHexString(&check_hash); + BOOST_REQUIRE_MESSAGE(check_hash_string == full_result_string, + "\ncheck hash string: " << check_hash_string.c_str() << "\n" + << "full result: " << full_result_string.c_str() << "\n"); + } + + ethash_light_delete(light); + ethash_full_delete(full); + fs::remove_all("./test_ethash_directory/"); } -// could have used dev::contentsNew but don't wanna try to import -// libdevcore just for one function -static std::vector<char> readFileIntoVector(char const* filename) +static bool g_executed = false; +static unsigned g_prev_progress = 0; +static int test_full_callback(unsigned _progress) { - ifstream ifs(filename, ios::binary|ios::ate); - ifstream::pos_type pos = ifs.tellg(); + g_executed = true; + BOOST_CHECK(_progress >= g_prev_progress); + g_prev_progress = _progress; + return 0; +} - std::vector<char> result((unsigned int)pos); +static int test_full_callback_that_fails(unsigned _progress) +{ + return 1; +} - ifs.seekg(0, ios::beg); - ifs.read(&result[0], pos); +static int test_full_callback_create_incomplete_dag(unsigned _progress) +{ + if (_progress >= 30) { + return 1; + } + return 0; +} + +BOOST_AUTO_TEST_CASE(full_client_callback) { + uint64_t full_size; + uint64_t cache_size; + ethash_h256_t seed; + ethash_h256_t hash; + memcpy(&seed, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + memcpy(&hash, "~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + + cache_size = 1024; + full_size = 1024 * 32; + + ethash_light_t light = ethash_light_new_internal(cache_size, &seed); + ethash_full_t full = ethash_full_new_internal( + "./test_ethash_directory/", + seed, + full_size, + light, + test_full_callback + ); + BOOST_ASSERT(full); + BOOST_CHECK(g_executed); + BOOST_REQUIRE_EQUAL(g_prev_progress, 100); + + ethash_full_delete(full); + ethash_light_delete(light); + fs::remove_all("./test_ethash_directory/"); +} + +BOOST_AUTO_TEST_CASE(failing_full_client_callback) { + uint64_t full_size; + uint64_t cache_size; + ethash_h256_t seed; + ethash_h256_t hash; + memcpy(&seed, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + memcpy(&hash, "~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + + cache_size = 1024; + full_size = 1024 * 32; + + ethash_light_t light = ethash_light_new_internal(cache_size, &seed); + ethash_full_t full = ethash_full_new_internal( + "./test_ethash_directory/", + seed, + full_size, + light, + test_full_callback_that_fails + ); + BOOST_ASSERT(!full); + ethash_light_delete(light); + fs::remove_all("./test_ethash_directory/"); +} - return result; +BOOST_AUTO_TEST_CASE(test_incomplete_dag_file) { + uint64_t full_size; + uint64_t cache_size; + ethash_h256_t seed; + ethash_h256_t hash; + memcpy(&seed, "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + memcpy(&hash, "~~~X~~~~~~~~~~~~~~~~~~~~~~~~~~~~", 32); + + cache_size = 1024; + full_size = 1024 * 32; + + ethash_light_t light = ethash_light_new_internal(cache_size, &seed); + // create a full but stop at 30%, so no magic number is written + ethash_full_t full = ethash_full_new_internal( + "./test_ethash_directory/", + seed, + full_size, + light, + test_full_callback_create_incomplete_dag + ); + BOOST_ASSERT(!full); + FILE *f = NULL; + // confirm that we get a size_mismatch because the magic number is missing + BOOST_REQUIRE_EQUAL( + ETHASH_IO_MEMO_SIZE_MISMATCH, + ethash_io_prepare("./test_ethash_directory/", seed, &f, full_size, false) + ); + ethash_light_delete(light); + fs::remove_all("./test_ethash_directory/"); +} + +BOOST_AUTO_TEST_CASE(test_block_verification) { + ethash_light_t light = ethash_light_new(22); + ethash_h256_t seedhash = stringToBlockhash("372eca2454ead349c3df0ab5d00b0b706b23e49d469387db91811cee0358fc6d"); + BOOST_ASSERT(light); + ethash_return_value_t ret = ethash_light_compute( + light, + seedhash, + 0x495732e0ed7a801c + ); + BOOST_REQUIRE_EQUAL(blockhashToHexString(&ret.result), "00000b184f1fdd88bfd94c86c39e65db0c36144d5e43f745f722196e730cb614"); + ethash_light_delete(light); +} + +// Test of Full DAG creation with the minimal ethash.h API. +// Commented out since travis tests would take too much time. +// Uncomment and run on your own machine if you want to confirm +// it works fine. +#if 0 +static int lef_cb(unsigned _progress) +{ + printf("CREATING DAG. PROGRESS: %u\n", _progress); + fflush(stdout); + return 0; } -BOOST_AUTO_TEST_CASE(test_ethash_io_memo_file_contents) { - ethash_blockhash_t seedhash; - static const int blockn = 0; - ethash_get_seedhash(&seedhash, blockn); - BOOST_REQUIRE_EQUAL( - ETHASH_IO_MEMO_MISMATCH, - ethash_io_prepare("./test_ethash_directory/", seedhash) - ); - - // let's make sure that the directory was created - BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/"))); - - ethash_cache cache; - ethash_params params; - uint8_t *data; - uint64_t size; - ethash_params_init(¶ms, blockn); - params.cache_size = 1024; - params.full_size = 1024 * 32; - cache.mem = our_alloca(params.cache_size); - ethash_mkcache(&cache, ¶ms, &seedhash); - - BOOST_REQUIRE( - ethash_io_write("./test_ethash_directory/", ¶ms, seedhash, &cache, &data, &size) - ); - - BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full"))); - BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full.info"))); - - char expect_buffer[DAG_MEMO_BYTESIZE]; - ethash_io_serialize_info(REVISION, seedhash, expect_buffer); - auto vec = readFileIntoVector("./test_ethash_directory/full.info"); - BOOST_REQUIRE_EQUAL(vec.size(), DAG_MEMO_BYTESIZE); - BOOST_REQUIRE(memcmp(expect_buffer, &vec[0], DAG_MEMO_BYTESIZE) == 0); - - // cleanup - fs::remove_all("./test_ethash_directory/"); - free(data); +BOOST_AUTO_TEST_CASE(full_dag_test) { + ethash_light_t light = ethash_light_new(55); + BOOST_ASSERT(light); + ethash_full_t full = ethash_full_new(light, lef_cb); + BOOST_ASSERT(full); + ethash_light_delete(light); + ethash_full_delete(full); } +#endif diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.sh b/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.sh index 6d02d30f8..92b6b8b66 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.sh +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.sh @@ -3,6 +3,13 @@ # Strict mode set -e +VALGRIND_ARGS="--tool=memcheck" +VALGRIND_ARGS+=" --leak-check=yes" +VALGRIND_ARGS+=" --track-origins=yes" +VALGRIND_ARGS+=" --show-reachable=yes" +VALGRIND_ARGS+=" --num-callers=20" +VALGRIND_ARGS+=" --track-fds=yes" + SOURCE="${BASH_SOURCE[0]}" while [ -h "$SOURCE" ]; do DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )" @@ -17,3 +24,9 @@ cd $TEST_DIR/build ; cmake ../../.. > /dev/null make Test ./test/c/Test + +# If we have valgrind also run memory check tests +if hash valgrind 2>/dev/null; then + echo "======== Running tests under valgrind ========"; + cd $TEST_DIR/build/ && valgrind $VALGRIND_ARGS ./test/c/Test +fi diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/test/go/ethash_test.go b/Godeps/_workspace/src/github.com/ethereum/ethash/test/go/ethash_test.go deleted file mode 100644 index 67ca51702..000000000 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/test/go/ethash_test.go +++ /dev/null @@ -1,82 +0,0 @@ -package ethashTest - -import ( - "bytes" - "crypto/rand" - "encoding/hex" - "log" - "math/big" - "testing" - - "github.com/ethereum/ethash" - "github.com/ethereum/go-ethereum/core" - "github.com/ethereum/go-ethereum/ethdb" -) - -func TestEthash(t *testing.T) { - seedHash := make([]byte, 32) - _, err := rand.Read(seedHash) - if err != nil { - panic(err) - } - - db, err := ethdb.NewMemDatabase() - if err != nil { - panic(err) - } - - blockProcessor, err := core.NewCanonical(5, db) - if err != nil { - panic(err) - } - - log.Println("Block Number: ", blockProcessor.ChainManager().CurrentBlock().Number()) - - e := ethash.New(blockProcessor.ChainManager()) - - miningHash := make([]byte, 32) - if _, err := rand.Read(miningHash); err != nil { - panic(err) - } - diff := big.NewInt(10000) - log.Println("difficulty", diff) - - nonce := uint64(0) - - ghash_full := e.FullHash(nonce, miningHash) - log.Printf("ethash full (on nonce): %x %x\n", ghash_full, nonce) - - ghash_light := e.LightHash(nonce, miningHash) - log.Printf("ethash light (on nonce): %x %x\n", ghash_light, nonce) - - if bytes.Compare(ghash_full, ghash_light) != 0 { - t.Errorf("full: %x, light: %x", ghash_full, ghash_light) - } -} - -func TestGetSeedHash(t *testing.T) { - seed0, err := ethash.GetSeedHash(0) - if err != nil { - t.Errorf("Failed to get seedHash for block 0: %v", err) - } - if bytes.Compare(seed0, []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}) != 0 { - log.Printf("seedHash for block 0 should be 0s, was: %v\n", seed0) - } - seed1, err := ethash.GetSeedHash(30000) - if err != nil { - t.Error(err) - } - - // From python: - // > from pyethash import get_seedhash - // > get_seedhash(30000) - expectedSeed1, err := hex.DecodeString("290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563") - if err != nil { - t.Error(err) - } - - if bytes.Compare(seed1, expectedSeed1) != 0 { - log.Printf("seedHash for block 1 should be: %v,\nactual value: %v\n", expectedSeed1, seed1) - } - -} diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/test/test.sh b/Godeps/_workspace/src/github.com/ethereum/ethash/test/test.sh index fd3508609..aaeaa878c 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/test/test.sh +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/test/test.sh @@ -24,8 +24,9 @@ fi echo -e "\n################# Testing C ##################" $TEST_DIR/c/test.sh -echo -e "\n################# Testing Python ##################" -$TEST_DIR/python/test.sh +# Temporarily commenting out python tests until they conform to the API +#echo -e "\n################# Testing Python ##################" +#$TEST_DIR/python/test.sh -#echo "################# Testing Go ##################" -#$TEST_DIR/go/test.sh +echo "################# Testing Go ##################" +cd $TEST_DIR/.. && go test -timeout 9999s diff --git a/cmd/geth/main.go b/cmd/geth/main.go index e00b139c0..f2497ccf4 100644 --- a/cmd/geth/main.go +++ b/cmd/geth/main.go @@ -27,8 +27,10 @@ import ( "io/ioutil" "os" "path" + "path/filepath" "runtime" "strconv" + "strings" "time" "github.com/codegangsta/cli" @@ -601,12 +603,32 @@ func dump(ctx *cli.Context) { } func makedag(ctx *cli.Context) { - chain, _, _ := utils.GetChain(ctx) - pow := ethash.New(chain) - fmt.Println("making cache") - pow.UpdateCache(0, true) - fmt.Println("making DAG") - pow.UpdateDAG() + args := ctx.Args() + wrongArgs := func() { + utils.Fatalf(`Usage: geth makedag <block number> <outputdir>`) + } + switch { + case len(args) == 2: + blockNum, err := strconv.ParseUint(args[0], 0, 64) + dir := args[1] + if err != nil { + wrongArgs() + } else { + dir = filepath.Clean(dir) + // seems to require a trailing slash + if !strings.HasSuffix(dir, "/") { + dir = dir + "/" + } + _, err = ioutil.ReadDir(dir) + if err != nil { + utils.Fatalf("Can't find dir") + } + fmt.Println("making DAG, this could take awhile...") + ethash.MakeDAG(blockNum, dir) + } + default: + wrongArgs() + } } func version(c *cli.Context) { diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go index c013510d8..1fdc8dfe5 100644 --- a/cmd/utils/flags.go +++ b/cmd/utils/flags.go @@ -316,7 +316,7 @@ func GetChain(ctx *cli.Context) (*core.ChainManager, common.Database, common.Dat eventMux := new(event.TypeMux) chainManager := core.NewChainManager(blockDb, stateDb, eventMux) - pow := ethash.New(chainManager) + pow := ethash.New() txPool := core.NewTxPool(eventMux, chainManager.State, chainManager.GasLimit) blockProcessor := core.NewBlockProcessor(stateDb, extraDb, pow, txPool, chainManager, eventMux) chainManager.SetProcessor(blockProcessor) diff --git a/core/chain_makers.go b/core/chain_makers.go index 73c2205f4..5cd7ab4ab 100644 --- a/core/chain_makers.go +++ b/core/chain_makers.go @@ -14,8 +14,8 @@ import ( // So we can generate blocks easily type FakePow struct{} -func (f FakePow) Search(block pow.Block, stop <-chan struct{}) (uint64, []byte, []byte) { - return 0, nil, nil +func (f FakePow) Search(block pow.Block, stop <-chan struct{}) (uint64, []byte) { + return 0, nil } func (f FakePow) Verify(block pow.Block) bool { return true } func (f FakePow) GetHashrate() int64 { return 0 } diff --git a/eth/backend.go b/eth/backend.go index a8b0fae50..5acef2ded 100644 --- a/eth/backend.go +++ b/eth/backend.go @@ -220,7 +220,7 @@ func New(config *Config) (*Ethereum, error) { eth.chainManager = core.NewChainManager(blockDb, stateDb, eth.EventMux()) eth.downloader = downloader.New(eth.chainManager.HasBlock, eth.chainManager.GetBlock) - eth.pow = ethash.New(eth.chainManager) + eth.pow = ethash.New() eth.txPool = core.NewTxPool(eth.EventMux(), eth.chainManager.State, eth.chainManager.GasLimit) eth.blockProcessor = core.NewBlockProcessor(stateDb, extraDb, eth.pow, eth.txPool, eth.chainManager, eth.EventMux()) eth.chainManager.SetProcessor(eth.blockProcessor) @@ -318,7 +318,6 @@ func (s *Ethereum) PeersInfo() (peersinfo []*PeerInfo) { func (s *Ethereum) ResetWithGenesisBlock(gb *types.Block) { s.chainManager.ResetWithGenesisBlock(gb) - s.pow.UpdateCache(0, true) } func (s *Ethereum) StartMining() error { diff --git a/miner/agent.go b/miner/agent.go index 547fdfbef..b2f89aaab 100644 --- a/miner/agent.go +++ b/miner/agent.go @@ -85,7 +85,7 @@ func (self *CpuMiner) mine(block *types.Block) { self.chMu.Unlock() // Mine - nonce, mixDigest, _ := self.pow.Search(block, self.quitCurrentOp) + nonce, mixDigest := self.pow.Search(block, self.quitCurrentOp) if nonce != 0 { block.SetNonce(nonce) block.Header().MixDigest = common.BytesToHash(mixDigest) diff --git a/miner/miner.go b/miner/miner.go index 883956370..bff0026dc 100644 --- a/miner/miner.go +++ b/miner/miner.go @@ -3,7 +3,6 @@ package miner import ( "math/big" - "github.com/ethereum/ethash" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/state" @@ -41,13 +40,7 @@ func (self *Miner) Mining() bool { func (self *Miner) Start(coinbase common.Address) { self.mining = true self.worker.coinbase = coinbase - - if self.threads > 0 { - self.pow.(*ethash.Ethash).UpdateDAG() - } - self.worker.start() - self.worker.commitNewWork() } diff --git a/pow/dagger/dagger.go b/pow/dagger/dagger.go index f2d65e8ef..b941c0eeb 100644 --- a/pow/dagger/dagger.go +++ b/pow/dagger/dagger.go @@ -6,8 +6,8 @@ import ( "math/rand" "time" - "github.com/ethereum/go-ethereum/crypto/sha3" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/crypto/sha3" "github.com/ethereum/go-ethereum/logger" ) @@ -44,7 +44,7 @@ func (dag *Dagger) Find(obj *big.Int, resChan chan int64) { resChan <- 0 } -func (dag *Dagger) Search(hash, diff *big.Int) ([]byte, []byte, []byte) { +func (dag *Dagger) Search(hash, diff *big.Int) (uint64, []byte) { // TODO fix multi threading. Somehow it results in the wrong nonce amountOfRoutines := 1 @@ -69,7 +69,7 @@ func (dag *Dagger) Search(hash, diff *big.Int) ([]byte, []byte, []byte) { } } - return big.NewInt(res).Bytes(), nil, nil + return uint64(res), nil } func (dag *Dagger) Verify(hash, diff, nonce *big.Int) bool { diff --git a/pow/ezp/pow.go b/pow/ezp/pow.go index bd2927fe8..c838dd5ec 100644 --- a/pow/ezp/pow.go +++ b/pow/ezp/pow.go @@ -32,7 +32,7 @@ func (pow *EasyPow) Turbo(on bool) { pow.turbo = on } -func (pow *EasyPow) Search(block pow.Block, stop <-chan struct{}) (uint64, []byte, []byte) { +func (pow *EasyPow) Search(block pow.Block, stop <-chan struct{}) (uint64, []byte) { r := rand.New(rand.NewSource(time.Now().UnixNano())) hash := block.HashNoNonce() diff := block.Difficulty() @@ -57,7 +57,7 @@ empty: for { select { case <-stop: - return 0, nil, nil + return 0, nil default: i++ @@ -67,7 +67,7 @@ empty: sha := uint64(r.Int63()) if verify(hash, diff, sha) { - return sha, nil, nil + return sha, nil } } @@ -76,7 +76,7 @@ empty: } } - return 0, nil, nil + return 0, nil } func (pow *EasyPow) Verify(block pow.Block) bool { diff --git a/pow/pow.go b/pow/pow.go index 3908e5f76..73984a4ae 100644 --- a/pow/pow.go +++ b/pow/pow.go @@ -1,7 +1,7 @@ package pow type PoW interface { - Search(block Block, stop <-chan struct{}) (uint64, []byte, []byte) + Search(block Block, stop <-chan struct{}) (uint64, []byte) Verify(block Block) bool GetHashrate() int64 Turbo(bool) diff --git a/tests/block_test.go b/tests/block_test.go index a46751f00..2cf2da75c 100644 --- a/tests/block_test.go +++ b/tests/block_test.go @@ -13,42 +13,37 @@ import ( // TODO: refactor test setup & execution to better align with vm and tx tests func TestBcValidBlockTests(t *testing.T) { - t.Skip("Skipped in lieu of performance fixes.") runBlockTestsInFile("files/BlockTests/bcValidBlockTest.json", []string{}, t) } func TestBcUncleTests(t *testing.T) { - t.Skip("Skipped in lieu of performance fixes.") + t.Skip("Skipped until https://github.com/ethereum/go-ethereum/pull/857 is merged.") runBlockTestsInFile("files/BlockTests/bcUncleTest.json", []string{}, t) } func TestBcUncleHeaderValidityTests(t *testing.T) { - t.Skip("Skipped in lieu of performance fixes.") + t.Skip("Skipped until https://github.com/ethereum/go-ethereum/pull/857 is merged.") runBlockTestsInFile("files/BlockTests/bcUncleHeaderValiditiy.json", []string{}, t) } func TestBcInvalidHeaderTests(t *testing.T) { - t.Skip("Skipped in lieu of performance fixes.") runBlockTestsInFile("files/BlockTests/bcInvalidHeaderTest.json", []string{}, t) } func TestBcInvalidRLPTests(t *testing.T) { - t.Skip("Skipped in lieu of performance fixes.") runBlockTestsInFile("files/BlockTests/bcInvalidRLPTest.json", []string{}, t) } func TestBcJSAPITests(t *testing.T) { - t.Skip("Skipped in lieu of performance fixes.") runBlockTestsInFile("files/BlockTests/bcJS_API_Test.json", []string{}, t) } func TestBcRPCAPITests(t *testing.T) { - t.Skip("Skipped in lieu of performance fixes.") + t.Skip("Skipped until https://github.com/ethereum/go-ethereum/pull/857 is merged.") runBlockTestsInFile("files/BlockTests/bcRPC_API_Test.json", []string{}, t) } func TestBcForkBlockTests(t *testing.T) { - t.Skip("Skipped in lieu of performance fixes.") runBlockTestsInFile("files/BlockTests/bcForkBlockTest.json", []string{}, t) } @@ -71,7 +66,6 @@ func runBlockTestsInFile(filepath string, snafus []string, t *testing.T) { } func runBlockTest(name string, test *BlockTest, t *testing.T) { - t.Log("Running test: ", name) cfg := testEthConfig() ethereum, err := eth.New(cfg) if err != nil { @@ -100,7 +94,7 @@ func runBlockTest(name string, test *BlockTest, t *testing.T) { if err = test.ValidatePostState(statedb); err != nil { t.Fatal("post state validation failed: %v", err) } - t.Log("Test passed: ", name) + t.Log("Test passed: ", name) } func testEthConfig() *eth.Config { |