forked from cerc-io/plugeth
GetBlockByNumber now properly looks for a number in the database
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parent
fee9aecfb2
commit
b927c29469
@ -17,6 +17,9 @@ import (
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var (
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chainlogger = logger.NewLogger("CHAIN")
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jsonlogger = logger.NewJsonLogger()
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blockHashPre = []byte("block-hash-")
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blockNumPre = []byte("block-num-")
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)
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type StateQuery interface {
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@ -165,9 +168,8 @@ func (self *ChainManager) setTransState(statedb *state.StateDB) {
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func (bc *ChainManager) setLastBlock() {
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data, _ := bc.blockDb.Get([]byte("LastBlock"))
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if len(data) != 0 {
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var block types.Block
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rlp.Decode(bytes.NewReader(data), &block)
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bc.currentBlock = &block
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block := bc.GetBlock(data)
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bc.currentBlock = block
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bc.lastBlockHash = block.Hash()
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// Set the last know difficulty (might be 0x0 as initial value, Genesis)
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@ -220,7 +222,7 @@ func (bc *ChainManager) Reset() {
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defer bc.mu.Unlock()
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for block := bc.currentBlock; block != nil; block = bc.GetBlock(block.Header().ParentHash) {
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bc.blockDb.Delete(block.Hash())
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bc.removeBlock(block)
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}
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// Prepare the genesis block
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@ -231,12 +233,16 @@ func (bc *ChainManager) Reset() {
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bc.setTotalDifficulty(ethutil.Big("0"))
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}
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func (bc *ChainManager) removeBlock(block *types.Block) {
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bc.blockDb.Delete(append(blockHashPre, block.Hash()...))
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}
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func (bc *ChainManager) ResetWithGenesisBlock(gb *types.Block) {
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bc.mu.Lock()
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defer bc.mu.Unlock()
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for block := bc.currentBlock; block != nil; block = bc.GetBlock(block.Header().ParentHash) {
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bc.blockDb.Delete(block.Hash())
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bc.removeBlock(block)
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}
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// Prepare the genesis block
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@ -261,15 +267,20 @@ func (self *ChainManager) Export() []byte {
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}
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func (bc *ChainManager) insert(block *types.Block) {
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encodedBlock := ethutil.Encode(block)
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bc.blockDb.Put([]byte("LastBlock"), encodedBlock)
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//encodedBlock := ethutil.Encode(block)
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bc.blockDb.Put([]byte("LastBlock"), block.Hash())
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bc.currentBlock = block
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bc.lastBlockHash = block.Hash()
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key := append(blockNumPre, block.Number().Bytes()...)
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bc.blockDb.Put(key, bc.lastBlockHash)
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}
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func (bc *ChainManager) write(block *types.Block) {
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encodedBlock := ethutil.Encode(block.RlpDataForStorage())
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bc.blockDb.Put(block.Hash(), encodedBlock)
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key := append(blockHashPre, block.Hash()...)
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bc.blockDb.Put(key, encodedBlock)
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}
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// Accessors
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@ -279,7 +290,7 @@ func (bc *ChainManager) Genesis() *types.Block {
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// Block fetching methods
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func (bc *ChainManager) HasBlock(hash []byte) bool {
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data, _ := bc.blockDb.Get(hash)
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data, _ := bc.blockDb.Get(append(blockHashPre, hash...))
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return len(data) != 0
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}
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@ -307,7 +318,7 @@ func (self *ChainManager) GetBlockHashesFromHash(hash []byte, max uint64) (chain
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}
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func (self *ChainManager) GetBlock(hash []byte) *types.Block {
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data, _ := self.blockDb.Get(hash)
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data, _ := self.blockDb.Get(append(blockHashPre, hash...))
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if len(data) == 0 {
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return nil
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}
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@ -320,6 +331,18 @@ func (self *ChainManager) GetBlock(hash []byte) *types.Block {
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return &block
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}
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func (self *ChainManager) GetBlockByNumber(num uint64) *types.Block {
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self.mu.RLock()
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defer self.mu.RUnlock()
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key, _ := self.blockDb.Get(append(blockNumPre, big.NewInt(int64(num)).Bytes()...))
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if len(key) == 0 {
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return nil
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}
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return self.GetBlock(key)
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}
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func (self *ChainManager) GetUnclesInChain(block *types.Block, length int) (uncles []*types.Header) {
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for i := 0; block != nil && i < length; i++ {
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uncles = append(uncles, block.Uncles()...)
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@ -342,24 +365,6 @@ func (self *ChainManager) GetAncestors(block *types.Block, length int) (blocks [
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return
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}
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func (self *ChainManager) GetBlockByNumber(num uint64) *types.Block {
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self.mu.RLock()
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defer self.mu.RUnlock()
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var block *types.Block
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if num <= self.currentBlock.Number().Uint64() {
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block = self.currentBlock
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for ; block != nil; block = self.GetBlock(block.Header().ParentHash) {
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if block.Header().Number.Uint64() == num {
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break
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}
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}
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}
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return block
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}
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func (bc *ChainManager) setTotalDifficulty(td *big.Int) {
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bc.blockDb.Put([]byte("LTD"), td.Bytes())
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bc.td = td
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