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Merge #14984: rpc: Speedup getrawmempool when verbose=true

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2d5cf4c41d rpc: Speedup getrawmempool when verbose=true (João Barbosa)

Pull request description:

  Instead of calling `pushKV(hash, info)`, which incurs in duplicate key checks, call `__pushKV` which (currently) doesn't.

  Improves RPC `getrawmempool` and REST `/rest/mempool/contents.json`.

  Fixes #14765.

ACKs for commit 2d5cf4:

Tree-SHA512: c3e91371bb41f39e79dcef820815e1dc27fb689ca3c4bf3a00467d2215b3baecd44d9792f7a481577a5b7ae1fc6cbaa07b1cd62123b845082eba65b35c2b3ca5
This commit is contained in:
MarcoFalke 2019-05-15 11:32:23 -04:00
parent 65526fc866 2d5cf4c41d
commit 2d16fb7a2b
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GPG key ID: D2EA4850E7528B25
1 changed files with 4 additions and 1 deletions
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5
src/rpc/blockchain.cpp
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@ -486,7 +486,10 @@ UniValue MempoolToJSON(const CTxMemPool& pool, bool verbose)
const uint256& hash = e.GetTx().GetHash(); const uint256& hash = e.GetTx().GetHash();
UniValue info(UniValue::VOBJ); UniValue info(UniValue::VOBJ);
entryToJSON(pool, info, e); entryToJSON(pool, info, e);
o.pushKV(hash.ToString(), info); // Mempool has unique entries so there is no advantage in using
// UniValue::pushKV, which checks if the key already exists in O(N).
// UniValue::__pushKV is used instead which currently is O(1).
o.__pushKV(hash.ToString(), info);
} }
return o; return o;
} else { } else {