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

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378aedc452 [net] Add cs_vSend lock annotations (John Newbery)
673254515a [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 #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 378aedc452
  theStack:
    re-ACK 378aedc452
  MarcoFalke:
    review ACK 378aedc452 🔌

Tree-SHA512: e9cd6c472b7e1479120c1bf2d1c640cf6d18c7d589a5f9b7dfc4875e5790adaab403a7a1b945a47e79e7249a614b8583270e4549f89b22e8a9edb2e4818b0d07
This commit is contained in:
MarcoFalke 2021-01-06 07:07:32 +01:00
commit 4eada5d8b1
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2 changed files with 9 additions and 13 deletions
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14
src/net.cpp
View file

@ -1506,16 +1506,10 @@ void CConnman::SocketHandler()
}
}
//
// Send
//
if (sendSet)
{
LOCK(pnode->cs_vSend);
size_t nBytes = SocketSendData(pnode);
if (nBytes) {
RecordBytesSent(nBytes);
}
if (sendSet) {
// Send data
size_t bytes_sent = WITH_LOCK(pnode->cs_vSend, return SocketSendData(pnode));
if (bytes_sent) RecordBytesSent(bytes_sent);
}
InactivityCheck(pnode);

8
src/net.h
View file

@ -849,8 +849,10 @@ public:
// socket
std::atomic<ServiceFlags> nServices{NODE_NONE};
SOCKET hSocket GUARDED_BY(cs_hSocket);
size_t nSendSize{0}; // total size of all vSendMsg entries
size_t nSendOffset{0}; // offset inside the first vSendMsg already sent
/** Total size of all vSendMsg entries */
size_t nSendSize GUARDED_BY(cs_vSend){0};
/** Offset inside the first vSendMsg already sent */
size_t nSendOffset GUARDED_BY(cs_vSend){0};
uint64_t nSendBytes GUARDED_BY(cs_vSend){0};
std::deque<std::vector<unsigned char>> vSendMsg GUARDED_BY(cs_vSend);
Mutex cs_vSend;
@ -979,7 +981,7 @@ public:
Network ConnectedThroughNetwork() const;
protected:
mapMsgCmdSize mapSendBytesPerMsgCmd;
mapMsgCmdSize mapSendBytesPerMsgCmd GUARDED_BY(cs_vSend);
mapMsgCmdSize mapRecvBytesPerMsgCmd GUARDED_BY(cs_vRecv);
public: