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[release/1.4.13] core/state: track all accounts in canon state

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This change introduces a global, per-state cache that keeps account data
in the canon state. Thanks to @karalabe for lots of fixes.

(cherry picked from commit a59a93f476)
This commit is contained in:
Felix Lange
2016-09-22 21:04:58 +02:00
parent 6999f1da6b
commit dc2b23c869
15 changed files with 412 additions and 338 deletions
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34
core/blockchain.go
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@@ -95,10 +95,11 @@ type BlockChain struct {
currentBlock *types.Block // Current head of the block chain
currentFastBlock *types.Block // Current head of the fast-sync chain (may be above the block chain!)
bodyCache *lru.Cache // Cache for the most recent block bodies
bodyRLPCache *lru.Cache // Cache for the most recent block bodies in RLP encoded format
blockCache *lru.Cache // Cache for the most recent entire blocks
futureBlocks *lru.Cache // future blocks are blocks added for later processing
stateCache *state.StateDB // State database to reuse between imports (contains state cache)
bodyCache *lru.Cache // Cache for the most recent block bodies
bodyRLPCache *lru.Cache // Cache for the most recent block bodies in RLP encoded format
blockCache *lru.Cache // Cache for the most recent entire blocks
futureBlocks *lru.Cache // future blocks are blocks added for later processing
quit chan struct{} // blockchain quit channel
running int32 // running must be called atomically
@@ -198,11 +199,18 @@ func (self *BlockChain) loadLastState() error {
self.currentFastBlock = block
}
}
// Initialize a statedb cache to ensure singleton account bloom filter generation
statedb, err := state.New(self.currentBlock.Root(), self.chainDb)
if err != nil {
return err
}
self.stateCache = statedb
self.stateCache.GetAccount(common.Address{})
// Issue a status log and return
headerTd := self.GetTd(self.hc.CurrentHeader().Hash())
blockTd := self.GetTd(self.currentBlock.Hash())
fastTd := self.GetTd(self.currentFastBlock.Hash())
glog.V(logger.Info).Infof("Last header: #%d [%x…] TD=%v", self.hc.CurrentHeader().Number, self.hc.CurrentHeader().Hash().Bytes()[:4], headerTd)
glog.V(logger.Info).Infof("Last block: #%d [%x…] TD=%v", self.currentBlock.Number(), self.currentBlock.Hash().Bytes()[:4], blockTd)
glog.V(logger.Info).Infof("Fast block: #%d [%x…] TD=%v", self.currentFastBlock.Number(), self.currentFastBlock.Hash().Bytes()[:4], fastTd)
@@ -817,7 +825,6 @@ func (self *BlockChain) InsertChain(chain types.Blocks) (int, error) {
tstart = time.Now()
nonceChecked = make([]bool, len(chain))
statedb *state.StateDB
)
// Start the parallel nonce verifier.
@@ -884,29 +891,30 @@ func (self *BlockChain) InsertChain(chain types.Blocks) (int, error) {
// Create a new statedb using the parent block and report an
// error if it fails.
if statedb == nil {
statedb, err = state.New(self.GetBlock(block.ParentHash()).Root(), self.chainDb)
} else {
err = statedb.Reset(chain[i-1].Root())
switch {
case i == 0:
err = self.stateCache.Reset(self.GetBlock(block.ParentHash()).Root())
default:
err = self.stateCache.Reset(chain[i-1].Root())
}
if err != nil {
reportBlock(block, err)
return i, err
}
// Process block using the parent state as reference point.
receipts, logs, usedGas, err := self.processor.Process(block, statedb, self.config.VmConfig)
receipts, logs, usedGas, err := self.processor.Process(block, self.stateCache, self.config.VmConfig)
if err != nil {
reportBlock(block, err)
return i, err
}
// Validate the state using the default validator
err = self.Validator().ValidateState(block, self.GetBlock(block.ParentHash()), statedb, receipts, usedGas)
err = self.Validator().ValidateState(block, self.GetBlock(block.ParentHash()), self.stateCache, receipts, usedGas)
if err != nil {
reportBlock(block, err)
return i, err
}
// Write state changes to database
_, err = statedb.Commit()
_, err = self.stateCache.Commit()
if err != nil {
return i, err
}