net: simplify the call to vProcessMsg.splice() #26888
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theStack
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Jan 21, 2023
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Concept ACK
Could apply the same simplifcation to ConnmanTestMsg::NodeReceiveMsgBytes (in ./src/test/util/net.cpp)?
At the time when ```cpp pnode->vProcessMsg.splice(pnode->vProcessMsg.end(), pnode->vRecvMsg, pnode->vRecvMsg.begin(), it); ``` is called, `it` is certainly `pnode->vRecvMsg.end()` which makes the call equivalent to: ```cpp pnode->vProcessMsg.splice(pnode->vProcessMsg.end(), pnode->vRecvMsg, pnode->vRecvMsg.begin(), pnode->vRecvMsg.end()); ``` which is equivalent to: ```cpp pnode->vProcessMsg.splice(pnode->vProcessMsg.end(), pnode->vRecvMsg); ``` Thus, use the latter. Further, maybe irrelevant, but the latter has constant complexity while the original code is `O(length of vRecvMsg)`.
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Good catch, done! |
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Looks like this was made superfluous in 6294ecd |
maflcko
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review ACK dfc01ccd73e1f12698278d467c241f398da9fc7d 🐑
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jonatack
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dfc01cc net: simplify the call to vProcessMsg.splice() (Vasil Dimov) Pull request description: At the time when ```cpp pnode->vProcessMsg.splice(pnode->vProcessMsg.end(), pnode->vRecvMsg, pnode->vRecvMsg.begin(), it); ``` is called, `it` is certainly `pnode->vRecvMsg.end()` which makes the call equivalent to: ```cpp pnode->vProcessMsg.splice(pnode->vProcessMsg.end(), pnode->vRecvMsg, pnode->vRecvMsg.begin(), pnode->vRecvMsg.end()); ``` which is equivalent to: ```cpp pnode->vProcessMsg.splice(pnode->vProcessMsg.end(), pnode->vRecvMsg); ``` Thus, use the latter. Further, maybe irrelevant, but the latter has constant complexity while the original code is `O(length of vRecvMsg)`. ACKs for top commit: theStack: Code-review ACK dfc01cc MarcoFalke: review ACK dfc01cc 🐑 jonatack: Light review ACK dfc01cc Tree-SHA512: 9f4eb61d1caf4af9a61ba2f54b915fcfe406db62c58ab1ec42f736505b6792e9379a83d0458d6cc04f289edcec070b7c962f94a920ab51701c3cab103152866f
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At the time when
is called,
itis certainlypnode->vRecvMsg.end()which makes the call equivalent to:which is equivalent to:
Thus, use the latter. Further, maybe irrelevant, but the latter has constant complexity while the original code is
O(length of vRecvMsg).