diff options
Diffstat (limited to 'trie/sync.go')
| -rw-r--r-- | trie/sync.go | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/trie/sync.go b/trie/sync.go index 4ae975d04..ccec80c9e 100644 --- a/trie/sync.go +++ b/trie/sync.go @@ -68,19 +68,19 @@ func newSyncMemBatch() *syncMemBatch { } } -// TrieSync is the main state trie synchronisation scheduler, which provides yet +// Sync is the main state trie synchronisation scheduler, which provides yet // unknown trie hashes to retrieve, accepts node data associated with said hashes // and reconstructs the trie step by step until all is done. -type TrieSync struct { +type Sync struct { database DatabaseReader // Persistent database to check for existing entries membatch *syncMemBatch // Memory buffer to avoid frequest database writes requests map[common.Hash]*request // Pending requests pertaining to a key hash queue *prque.Prque // Priority queue with the pending requests } -// NewTrieSync creates a new trie data download scheduler. -func NewTrieSync(root common.Hash, database DatabaseReader, callback LeafCallback) *TrieSync { - ts := &TrieSync{ +// NewSync creates a new trie data download scheduler. +func NewSync(root common.Hash, database DatabaseReader, callback LeafCallback) *Sync { + ts := &Sync{ database: database, membatch: newSyncMemBatch(), requests: make(map[common.Hash]*request), @@ -91,7 +91,7 @@ func NewTrieSync(root common.Hash, database DatabaseReader, callback LeafCallbac } // AddSubTrie registers a new trie to the sync code, rooted at the designated parent. -func (s *TrieSync) AddSubTrie(root common.Hash, depth int, parent common.Hash, callback LeafCallback) { +func (s *Sync) AddSubTrie(root common.Hash, depth int, parent common.Hash, callback LeafCallback) { // Short circuit if the trie is empty or already known if root == emptyRoot { return @@ -126,7 +126,7 @@ func (s *TrieSync) AddSubTrie(root common.Hash, depth int, parent common.Hash, c // interpreted as a trie node, but rather accepted and stored into the database // as is. This method's goal is to support misc state metadata retrievals (e.g. // contract code). -func (s *TrieSync) AddRawEntry(hash common.Hash, depth int, parent common.Hash) { +func (s *Sync) AddRawEntry(hash common.Hash, depth int, parent common.Hash) { // Short circuit if the entry is empty or already known if hash == emptyState { return @@ -156,7 +156,7 @@ func (s *TrieSync) AddRawEntry(hash common.Hash, depth int, parent common.Hash) } // Missing retrieves the known missing nodes from the trie for retrieval. -func (s *TrieSync) Missing(max int) []common.Hash { +func (s *Sync) Missing(max int) []common.Hash { requests := []common.Hash{} for !s.queue.Empty() && (max == 0 || len(requests) < max) { requests = append(requests, s.queue.PopItem().(common.Hash)) @@ -167,7 +167,7 @@ func (s *TrieSync) Missing(max int) []common.Hash { // Process injects a batch of retrieved trie nodes data, returning if something // was committed to the database and also the index of an entry if processing of // it failed. -func (s *TrieSync) Process(results []SyncResult) (bool, int, error) { +func (s *Sync) Process(results []SyncResult) (bool, int, error) { committed := false for i, item := range results { @@ -213,7 +213,7 @@ func (s *TrieSync) Process(results []SyncResult) (bool, int, error) { // Commit flushes the data stored in the internal membatch out to persistent // storage, returning the number of items written and any occurred error. -func (s *TrieSync) Commit(dbw ethdb.Putter) (int, error) { +func (s *Sync) Commit(dbw ethdb.Putter) (int, error) { // Dump the membatch into a database dbw for i, key := range s.membatch.order { if err := dbw.Put(key[:], s.membatch.batch[key]); err != nil { @@ -228,14 +228,14 @@ func (s *TrieSync) Commit(dbw ethdb.Putter) (int, error) { } // Pending returns the number of state entries currently pending for download. -func (s *TrieSync) Pending() int { +func (s *Sync) Pending() int { return len(s.requests) } // schedule inserts a new state retrieval request into the fetch queue. If there // is already a pending request for this node, the new request will be discarded // and only a parent reference added to the old one. -func (s *TrieSync) schedule(req *request) { +func (s *Sync) schedule(req *request) { // If we're already requesting this node, add a new reference and stop if old, ok := s.requests[req.hash]; ok { old.parents = append(old.parents, req.parents...) @@ -248,7 +248,7 @@ func (s *TrieSync) schedule(req *request) { // children retrieves all the missing children of a state trie entry for future // retrieval scheduling. -func (s *TrieSync) children(req *request, object node) ([]*request, error) { +func (s *Sync) children(req *request, object node) ([]*request, error) { // Gather all the children of the node, irrelevant whether known or not type child struct { node node @@ -310,7 +310,7 @@ func (s *TrieSync) children(req *request, object node) ([]*request, error) { // commit finalizes a retrieval request and stores it into the membatch. If any // of the referencing parent requests complete due to this commit, they are also // committed themselves. -func (s *TrieSync) commit(req *request) (err error) { +func (s *Sync) commit(req *request) (err error) { // Write the node content to the membatch s.membatch.batch[req.hash] = req.data s.membatch.order = append(s.membatch.order, req.hash) |