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Merge #17242: refactor: Remove unused cacheSigStore from CheckInputsFromMempooAndCache

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0a433fc876 [validation] Remove unused cacheSigStore from CheckInputsFromMempoolAndCache (John Newbery)

Pull request description:

  CheckInputsFromMempoolAndCache() is only called in one place, and
  cacheSigStore is set to true in that call site. Remove the argument
  entirely.

  Also improve commenting.

ACKs for top commit:
  MarcoFalke:
    unsigned ACK 0a433fc876 Comment looks good
  jamesob:
    ACK https://github.com/bitcoin/bitcoin/pull/17242/commits/0a433fc876d82df1005f175c1254fff62f0f36f8
  laanwj:
    ACK 0a433fc876
  fanquake:
    ACK 0a433fc876. Checked that `CheckInputsFromMempoolAndCache` is only called once, in `MemPoolAccept::ConsensusScriptChecks`, and that `cacheSigStore` is true.

Tree-SHA512: e4b4d2550e35df55c8f8fa4c539174cc2d3728112ddb937cb2ff759d8630a01566b5ec42a70a82e33994e6586f5a457a75a59f64b15d27c65331c723cbb097af
This commit is contained in:
fanquake 2019-10-25 07:57:42 -04:00
commit 48cb468ce3
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1 changed files with 4 additions and 3 deletions
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7
src/validation.cpp
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@ -392,7 +392,7 @@ static void UpdateMempoolForReorg(DisconnectedBlockTransactions& disconnectpool,
// Used to avoid mempool polluting consensus critical paths if CCoinsViewMempool
// were somehow broken and returning the wrong scriptPubKeys
static bool CheckInputsFromMempoolAndCache(const CTransaction& tx, CValidationState& state, const CCoinsViewCache& view, const CTxMemPool& pool,
unsigned int flags, bool cacheSigStore, PrecomputedTransactionData& txdata) EXCLUSIVE_LOCKS_REQUIRED(cs_main) {
unsigned int flags, PrecomputedTransactionData& txdata) EXCLUSIVE_LOCKS_REQUIRED(cs_main) {
AssertLockHeld(cs_main);
// pool.cs should be locked already, but go ahead and re-take the lock here
@ -422,7 +422,8 @@ static bool CheckInputsFromMempoolAndCache(const CTransaction& tx, CValidationSt
}
}
return CheckInputs(tx, state, view, flags, cacheSigStore, true, txdata);
// Call CheckInputs() to cache signature and script validity against current tip consensus rules.
return CheckInputs(tx, state, view, flags, /* cacheSigStore = */ true, /* cacheFullSciptStore = */ true, txdata);
}
namespace {
@ -959,7 +960,7 @@ bool MemPoolAccept::ConsensusScriptChecks(ATMPArgs& args, Workspace& ws, Precomp
// invalid blocks (using TestBlockValidity), however allowing such
// transactions into the mempool can be exploited as a DoS attack.
unsigned int currentBlockScriptVerifyFlags = GetBlockScriptFlags(::ChainActive().Tip(), chainparams.GetConsensus());
if (!CheckInputsFromMempoolAndCache(tx, state, m_view, m_pool, currentBlockScriptVerifyFlags, true, txdata)) {
if (!CheckInputsFromMempoolAndCache(tx, state, m_view, m_pool, currentBlockScriptVerifyFlags, txdata)) {
return error("%s: BUG! PLEASE REPORT THIS! CheckInputs failed against latest-block but not STANDARD flags %s, %s",
__func__, hash.ToString(), FormatStateMessage(state));
}