diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/net.cpp | 74 | ||||
| -rw-r--r-- | src/net.h | 1 |
2 files changed, 49 insertions, 26 deletions
diff --git a/src/net.cpp b/src/net.cpp index 2242afb863..7c45cff1dd 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -425,6 +425,7 @@ void CConnman::DumpBanlist() void CNode::CloseSocketDisconnect() { fDisconnect = true; + LOCK(cs_hSocket); if (hSocket != INVALID_SOCKET) { LogPrint("net", "disconnecting peer=%d\n", id); @@ -789,7 +790,13 @@ size_t CConnman::SocketSendData(CNode *pnode) const while (it != pnode->vSendMsg.end()) { const auto &data = *it; assert(data.size() > pnode->nSendOffset); - int nBytes = send(pnode->hSocket, reinterpret_cast<const char*>(data.data()) + pnode->nSendOffset, data.size() - pnode->nSendOffset, MSG_NOSIGNAL | MSG_DONTWAIT); + int nBytes = 0; + { + LOCK(pnode->cs_hSocket); + if (pnode->hSocket == INVALID_SOCKET) + break; + nBytes = send(pnode->hSocket, reinterpret_cast<const char*>(data.data()) + pnode->nSendOffset, data.size() - pnode->nSendOffset, MSG_NOSIGNAL | MSG_DONTWAIT); + } if (nBytes > 0) { pnode->nLastSend = GetSystemTimeInSeconds(); pnode->nSendBytes += nBytes; @@ -1148,12 +1155,6 @@ void CConnman::ThreadSocketHandler() LOCK(cs_vNodes); BOOST_FOREACH(CNode* pnode, vNodes) { - if (pnode->hSocket == INVALID_SOCKET) - continue; - FD_SET(pnode->hSocket, &fdsetError); - hSocketMax = std::max(hSocketMax, pnode->hSocket); - have_fds = true; - // Implement the following logic: // * If there is data to send, select() for sending data. As this only // happens when optimistic write failed, we choose to first drain the @@ -1164,16 +1165,28 @@ void CConnman::ThreadSocketHandler() // receiving data. // * Hand off all complete messages to the processor, to be handled without // blocking here. + + bool select_recv = !pnode->fPauseRecv; + bool select_send; { LOCK(pnode->cs_vSend); - if (!pnode->vSendMsg.empty()) { - FD_SET(pnode->hSocket, &fdsetSend); - continue; - } + select_send = !pnode->vSendMsg.empty(); } - { - if (!pnode->fPauseRecv) - FD_SET(pnode->hSocket, &fdsetRecv); + + LOCK(pnode->cs_hSocket); + if (pnode->hSocket == INVALID_SOCKET) + continue; + + FD_SET(pnode->hSocket, &fdsetError); + hSocketMax = std::max(hSocketMax, pnode->hSocket); + have_fds = true; + + if (select_send) { + FD_SET(pnode->hSocket, &fdsetSend); + continue; + } + if (select_recv) { + FD_SET(pnode->hSocket, &fdsetRecv); } } } @@ -1227,15 +1240,30 @@ void CConnman::ThreadSocketHandler() // // Receive // - if (pnode->hSocket == INVALID_SOCKET) - continue; - if (FD_ISSET(pnode->hSocket, &fdsetRecv) || FD_ISSET(pnode->hSocket, &fdsetError)) + bool recvSet = false; + bool sendSet = false; + bool errorSet = false; + { + LOCK(pnode->cs_hSocket); + if (pnode->hSocket == INVALID_SOCKET) + continue; + recvSet = FD_ISSET(pnode->hSocket, &fdsetRecv); + sendSet = FD_ISSET(pnode->hSocket, &fdsetSend); + errorSet = FD_ISSET(pnode->hSocket, &fdsetError); + } + if (recvSet || errorSet) { { { // typical socket buffer is 8K-64K char pchBuf[0x10000]; - int nBytes = recv(pnode->hSocket, pchBuf, sizeof(pchBuf), MSG_DONTWAIT); + int nBytes = 0; + { + LOCK(pnode->cs_hSocket); + if (pnode->hSocket == INVALID_SOCKET) + continue; + nBytes = recv(pnode->hSocket, pchBuf, sizeof(pchBuf), MSG_DONTWAIT); + } if (nBytes > 0) { bool notify = false; @@ -1284,9 +1312,7 @@ void CConnman::ThreadSocketHandler() // // Send // - if (pnode->hSocket == INVALID_SOCKET) - continue; - if (FD_ISSET(pnode->hSocket, &fdsetSend)) + if (sendSet) { LOCK(pnode->cs_vSend); size_t nBytes = SocketSendData(pnode); @@ -2275,8 +2301,7 @@ void CConnman::Stop() // Close sockets BOOST_FOREACH(CNode* pnode, vNodes) - if (pnode->hSocket != INVALID_SOCKET) - CloseSocket(pnode->hSocket); + pnode->CloseSocketDisconnect(); BOOST_FOREACH(ListenSocket& hListenSocket, vhListenSocket) if (hListenSocket.socket != INVALID_SOCKET) if (!CloseSocket(hListenSocket.socket)) @@ -2677,9 +2702,6 @@ void CConnman::PushMessage(CNode* pnode, CSerializedNetMsg&& msg) size_t nBytesSent = 0; { LOCK(pnode->cs_vSend); - if(pnode->hSocket == INVALID_SOCKET) { - return; - } bool optimisticSend(pnode->vSendMsg.empty()); //log total amount of bytes per command @@ -572,6 +572,7 @@ public: uint64_t nSendBytes; std::deque<std::vector<unsigned char>> vSendMsg; CCriticalSection cs_vSend; + CCriticalSection cs_hSocket; CCriticalSection cs_vProcessMsg; std::list<CNetMessage> vProcessMsg; |