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net: Move RecordBytesSent() call out of cs_vSend lock #20816

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merged 2 commits into from
Jan 6, 2021
Merged

net: Move RecordBytesSent() call out of cs_vSend lock #20816

merged 2 commits into from
Jan 6, 2021

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jnewbery
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RecordBytesSent() does not require cs_vSend to be locked, so reduce the scope of cs_vSend.

Also correctly annotate the CNode data members that are guarded by cs_vSend.

This is a simpler alternative to #19673.

@jnewbery jnewbery mentioned this pull request Dec 31, 2020
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@fanquake fanquake added the P2P label Dec 31, 2020
@maflcko
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maflcko commented Dec 31, 2020

Concept ACK. Will review next year.

@DrahtBot
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DrahtBot commented Dec 31, 2020 •
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The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

Conflicts

Reviewers, this pull request conflicts with the following ones:

If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

@practicalswift
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Concept ACK

Thanks for improving locking!

@DrahtBot DrahtBot mentioned this pull request Dec 31, 2020
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theStack
theStack approved these changes Jan 2, 2021
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ACK a06c1ed 🔒

src/net.cpp Outdated Show resolved Hide resolved
theStack
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re-ACK 378aedc

maflcko
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review ACK 378aedc 🔌

Show signature and timestamp

Signature:

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review ACK 378aedc45248cea82d9a3e6dc1038d6828008a76 🔌
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@maflcko
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maflcko commented Jan 5, 2021

let me know if you want this merged or address the style nits

@jnewbery
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jnewbery commented Jan 5, 2021

let me know if you want this merged or address the style nits

I'll address your review comments. Might as well fix those things up while I'm touching this code.

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jnewbery commented Jan 5, 2021

Thanks for the review @MarcoFalke. I've addressed your comments.

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theStack commented Jan 5, 2021

CI is failing now:

In file included from net.cpp:10:
./net.h:451:77: error: member access into incomplete type 'CNode'
    size_t SocketSendData(CNode& pnode) const EXCLUSIVE_LOCKS_REQUIRED(pnode.cs_vSend);
                                                                            ^
./net.h:39:7: note: forward declaration of 'CNode'
class CNode;
      ^
1 error generated.

@jnewbery
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jnewbery commented Jan 5, 2021

ok, reverting to commit 378aedc which has two ACKs already. Any style issues can be fixed up in future PRs.

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ACK 378aedc

This is definitely the right way to fix this.

@maflcko maflcko merged commit 4eada5d into bitcoin:master Jan 6, 2021
@jnewbery jnewbery deleted the 2020-12-cs-vsend branch January 6, 2021 09:42
sidhujag pushed a commit to syscoin/syscoin that referenced this pull request Jan 6, 2021
Merge bitcoin#20816: net: Move RecordBytesSent() call out of cs_vSend…
c1fd7a4 
… lock

378aedc [net] Add cs_vSend lock annotations (John Newbery)
6732545 [net] Move RecordBytesSent() call out of cs_vSend lock (John Newbery)

Pull request description:

  RecordBytesSent() does not require cs_vSend to be locked, so reduce the scope of cs_vSend.

  Also correctly annotate the CNode data members that are guarded by cs_vSend.

  This is a simpler alternative to bitcoin#19673.

ACKs for top commit:
  jnewbery:
    ok, reverting to commit 378aedc which has two ACKs already. Any style issues can be fixed up in future PRs.
  troygiorshev:
    ACK 378aedc
  theStack:
    re-ACK 378aedc
  MarcoFalke:
    review ACK 378aedc 🔌

Tree-SHA512: e9cd6c472b7e1479120c1bf2d1c640cf6d18c7d589a5f9b7dfc4875e5790adaab403a7a1b945a47e79e7249a614b8583270e4549f89b22e8a9edb2e4818b0d07
@bitcoin bitcoin locked as resolved and limited conversation to collaborators Aug 16, 2022
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@jnewbery @maflcko @DrahtBot @practicalswift @theStack @troygiorshev @fanquake