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core: use blockchain's block cache for headers #23299

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merged 1 commit into from Aug 3, 2021
Merged

core: use blockchain's block cache for headers #23299

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10 changes: 10 additions & 0 deletions core/blockchain.go
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Expand Up @@ -2417,12 +2417,22 @@ func (bc *BlockChain) GetTdByHash(hash common.Hash) *big.Int {
// GetHeader retrieves a block header from the database by hash and number,
// caching it if found.
func (bc *BlockChain) GetHeader(hash common.Hash, number uint64) *types.Header {
// Blockchain might have cached the whole block, only if not go to headerchain
if block, ok := bc.blockCache.Get(hash); ok {
return block.(*types.Block).Header()
}

return bc.hc.GetHeader(hash, number)
}

// GetHeaderByHash retrieves a block header from the database by hash, caching it if
// found.
func (bc *BlockChain) GetHeaderByHash(hash common.Hash) *types.Header {
// Blockchain might have cached the whole block, only if not go to headerchain
if block, ok := bc.blockCache.Get(hash); ok {
return block.(*types.Block).Header()
}

return bc.hc.GetHeaderByHash(hash)
}

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