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authorobscuren <geffobscura@gmail.com>2014-02-15 06:56:09 +0800
committerobscuren <geffobscura@gmail.com>2014-02-15 06:56:09 +0800
commitf6d1bfe45bf3709d7bad40bf563b5c09228622e3 (patch)
treedf48311a5a494c66c74dcd51f1056cc699f01507 /ethdb/database.go
parentc2fb9f06ad018d01ce335c82b3542de16045a32d (diff)
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The great merge
Diffstat (limited to 'ethdb/database.go')
-rw-r--r--ethdb/database.go64
1 files changed, 64 insertions, 0 deletions
diff --git a/ethdb/database.go b/ethdb/database.go
new file mode 100644
index 000000000..76e4b4e4d
--- /dev/null
+++ b/ethdb/database.go
@@ -0,0 +1,64 @@
+package ethdb
+
+import (
+ "fmt"
+ "github.com/ethereum/eth-go/ethutil"
+ "github.com/syndtr/goleveldb/leveldb"
+ "path"
+)
+
+type LDBDatabase struct {
+ db *leveldb.DB
+}
+
+func NewLDBDatabase() (*LDBDatabase, error) {
+ dbPath := path.Join(ethutil.Config.ExecPath, "database")
+
+ // Open the db
+ db, err := leveldb.OpenFile(dbPath, nil)
+ if err != nil {
+ return nil, err
+ }
+
+ database := &LDBDatabase{db: db}
+
+ return database, nil
+}
+
+func (db *LDBDatabase) Put(key []byte, value []byte) {
+ err := db.db.Put(key, value, nil)
+ if err != nil {
+ fmt.Println("Error put", err)
+ }
+}
+
+func (db *LDBDatabase) Get(key []byte) ([]byte, error) {
+ return db.db.Get(key, nil)
+}
+
+func (db *LDBDatabase) LastKnownTD() []byte {
+ data, _ := db.db.Get([]byte("LastKnownTotalDifficulty"), nil)
+
+ if len(data) == 0 {
+ data = []byte{0x0}
+ }
+
+ return data
+}
+
+func (db *LDBDatabase) Close() {
+ // Close the leveldb database
+ db.db.Close()
+}
+
+func (db *LDBDatabase) Print() {
+ iter := db.db.NewIterator(nil)
+ for iter.Next() {
+ key := iter.Key()
+ value := iter.Value()
+
+ fmt.Printf("%x(%d): ", key, len(key))
+ node := ethutil.NewValueFromBytes(value)
+ fmt.Printf("%v\n", node)
+ }
+}