rpc: Capture UniValue by ref for rpcdoccheck #25237
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furszy
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May 29, 2022
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bitcoin-core/univalue-subtree#27 might have helped to discover this bug? |
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Post-merge ACK. Very good catch, I imagine this could result in quite a lot of allocation, copy and reallocation overhead for complex objects. |
sidhujag
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May 30, 2022
20ff499 rpc: Capture potentially large UniValue by ref for rpcdoccheck (Martin Zumsande) Pull request description: Capturing it by reference instead of value should save us from making a copy of a potentially large object. Saw this while having a look at bitcoin#25229 although I couldn't reproduce an actual leak, so this is not a fix for that issue. ACKs for top commit: MarcoFalke: review ACK 20ff499 theStack: Code-review ACK 20ff499 furszy: Code ACK 20ff499 Tree-SHA512: faf7bb14e37f8324b93a39095b07693626329da47c4a1ac8929bf99385e2e0567008e959e7e8540bc7d454d08fa41cccd39f55253c9a839fa88362922058a93b
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Capturing it by reference instead of value should save us from making a copy of a potentially large object. Saw this while having a look at #25229 although I couldn't reproduce an actual leak, so this is not a fix for that issue.