Mike Hearn ab8227882d Patch 5 from Steves lazy parsing patchset: ... Optimise BitcoinSerialiser for Transactions. When calculating checksum on deserialize use it prepopulate the transaction's hash. Likewise on serialize check if the Transaction already has a hash and use that to write checksum bytes. This yields performance improvesment up to 400% by saving on a double hash. Don't parse all the subcomponents of a Transaction purely to calculate its length, instead do the minimal work possible. Recaching on a call to bitcoinSerialise(). Prevents double serialization of transactions and inputs/outputs when calculating a merkleroot during block serialization. Also makes it more likely the original larger byte array can be GC'd		2011-10-14 12:25:05 +00:00
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google/bitcoin	Patch 5 from Steves lazy parsing patchset:	2011-10-14 12:25:05 +00:00