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Changed prev_hash to block_hash, state transition now uses vm env

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* PREVHASH => BLOCKHASH( N )
* State transition object uses VMEnv as it's query interface
* Updated vm.Enviroment has GetHash( n ) for BLOCKHASH instruction
* Added GetHash to xeth, core, utils & test environments
This commit is contained in:
obscuren
2015-01-03 17:18:43 +01:00
parent 16f417f5af
commit ca1b2a1a91
13 changed files with 91 additions and 57 deletions
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16
core/chain_manager.go
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@ -271,15 +271,15 @@ func (self *ChainManager) GetBlockByNumber(num uint64) *types.Block {
self.mu.RLock()
defer self.mu.RUnlock()
block := self.currentBlock
for ; block != nil; block = self.GetBlock(block.Header().ParentHash) {
if block.Header().Number.Uint64() == num {
break
}
}
var block *types.Block
if block != nil && block.Header().Number.Uint64() == 0 && num != 0 {
return nil
if num <= self.currentBlock.Number().Uint64() {
block = self.currentBlock
for ; block != nil; block = self.GetBlock(block.Header().ParentHash) {
if block.Header().Number.Uint64() == num {
break
}
}
}
return block