mirror of
https://gitee.com/ldcsaa/HP-Socket.git
synced 2024-12-06 05:38:02 +08:00
870 lines
17 KiB
C++
870 lines
17 KiB
C++
/*
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* Copyright: JessMA Open Source (ldcsaa@gmail.com)
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*
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* Author : Bruce Liang
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* Website : https://github.com/ldcsaa
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* Project : https://github.com/ldcsaa/HP-Socket
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* Blog : http://www.cnblogs.com/ldcsaa
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* Wiki : http://www.oschina.net/p/hp-socket
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* QQ Group : 44636872, 75375912
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "stdafx.h"
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#include "UdpClient.h"
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#include "Common/WaitFor.h"
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#ifdef _UDP_SUPPORT
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const CInitSocket CUdpClient::sm_wsSocket;
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BOOL CUdpClient::Start(LPCTSTR lpszRemoteAddress, USHORT usPort, BOOL bAsyncConnect, LPCTSTR lpszBindAddress, USHORT usLocalPort)
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{
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if(!CheckParams() || !CheckStarting())
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return FALSE;
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PrepareStart();
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m_ccContext.Reset();
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BOOL isOK = FALSE;
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HP_SOCKADDR addrRemote, addrBind;
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if(CreateClientSocket(lpszRemoteAddress, addrRemote, usPort, lpszBindAddress, addrBind))
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{
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if(BindClientSocket(addrBind, addrRemote, usLocalPort))
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{
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if(TRIGGER(FirePrepareConnect(m_soClient)) != HR_ERROR)
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{
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if(ConnectToServer(addrRemote, bAsyncConnect))
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{
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if(CreateWorkerThread())
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{
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isOK = TRUE;
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m_evWait.Reset();
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}
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else
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SetLastError(SE_WORKER_THREAD_CREATE, __FUNCTION__, ERROR_CREATE_FAILED);
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}
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else
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SetLastError(SE_CONNECT_SERVER, __FUNCTION__, ::WSAGetLastError());
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}
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else
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SetLastError(SE_SOCKET_PREPARE, __FUNCTION__, ENSURE_ERROR_CANCELLED);
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}
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else
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SetLastError(SE_SOCKET_BIND, __FUNCTION__, ::WSAGetLastError());
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}
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else
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SetLastError(SE_SOCKET_CREATE, __FUNCTION__, ::WSAGetLastError());
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if(!isOK)
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{
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m_ccContext.Reset(FALSE);
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EXECUTE_RESTORE_ERROR(Stop());
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}
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return isOK;
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}
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BOOL CUdpClient::CheckParams()
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{
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if (((int)m_dwMaxDatagramSize > 0 && m_dwMaxDatagramSize <= MAXIMUM_UDP_MAX_DATAGRAM_SIZE) &&
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((int)m_dwFreeBufferPoolSize >= 0) &&
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((int)m_dwFreeBufferPoolHold >= 0) &&
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((int)m_dwDetectAttempts >= 0) &&
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((int)m_dwDetectInterval >= 1000 || m_dwDetectInterval == 0) )
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return TRUE;
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SetLastError(SE_INVALID_PARAM, __FUNCTION__, ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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void CUdpClient::PrepareStart()
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{
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m_itPool.SetItemCapacity((int)m_dwMaxDatagramSize);
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m_itPool.SetPoolSize((int)m_dwFreeBufferPoolSize);
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m_itPool.SetPoolHold((int)m_dwFreeBufferPoolHold);
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m_itPool.Prepare();
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}
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BOOL CUdpClient::CheckStarting()
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{
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CSpinLock locallock(m_csState);
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if(m_enState == SS_STOPPED)
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m_enState = SS_STARTING;
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else
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{
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SetLastError(SE_ILLEGAL_STATE, __FUNCTION__, ERROR_INVALID_STATE);
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return FALSE;
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}
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return TRUE;
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}
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BOOL CUdpClient::CheckStoping(DWORD dwCurrentThreadID)
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{
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if(m_enState != SS_STOPPED)
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{
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CSpinLock locallock(m_csState);
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if(HasStarted())
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{
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m_enState = SS_STOPPING;
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return TRUE;
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}
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}
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SetLastError(SE_ILLEGAL_STATE, __FUNCTION__, ERROR_INVALID_STATE);
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return FALSE;
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}
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BOOL CUdpClient::CreateClientSocket(LPCTSTR lpszRemoteAddress, HP_SOCKADDR& addrRemote, USHORT usPort, LPCTSTR lpszBindAddress, HP_SOCKADDR& addrBind)
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{
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HP_SCOPE_HOST host(lpszRemoteAddress);
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if(!::GetSockAddrByHostName(host.addr, usPort, addrRemote))
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return FALSE;
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if(::IsStrNotEmpty(lpszBindAddress))
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{
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if(!::sockaddr_A_2_IN(lpszBindAddress, 0, addrBind))
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return FALSE;
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if(addrRemote.family != addrBind.family)
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{
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::WSASetLastError(WSAEAFNOSUPPORT);
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return FALSE;
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}
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}
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m_soClient = socket(addrRemote.family, SOCK_DGRAM, IPPROTO_UDP);
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if(m_soClient == INVALID_SOCKET)
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return FALSE;
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ENSURE(::SSO_UDP_ConnReset(m_soClient, FALSE) == NO_ERROR);
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ENSURE(::SSO_ReuseAddress(m_soClient, m_enReusePolicy) == NO_ERROR);
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m_evSocket = ::WSACreateEvent();
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ASSERT(m_evSocket != WSA_INVALID_EVENT);
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SetRemoteHost(host.name, usPort);
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return TRUE;
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}
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BOOL CUdpClient::BindClientSocket(const HP_SOCKADDR& addrBind, const HP_SOCKADDR& addrRemote, USHORT usLocalPort)
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{
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if(addrBind.IsSpecified() && usLocalPort == 0)
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{
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if(::bind(m_soClient, addrBind.Addr(), addrBind.AddrSize()) == SOCKET_ERROR)
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return FALSE;
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}
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else if(usLocalPort != 0)
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{
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HP_SOCKADDR realBindAddr = addrBind.IsSpecified() ? addrBind : HP_SOCKADDR::AnyAddr(addrRemote.family);
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realBindAddr.SetPort(usLocalPort);
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if(::bind(m_soClient, realBindAddr.Addr(), realBindAddr.AddrSize()) == SOCKET_ERROR)
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return FALSE;
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}
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m_dwConnID = ::GenerateConnectionID();
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return TRUE;
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}
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BOOL CUdpClient::ConnectToServer(const HP_SOCKADDR& addrRemote, BOOL bAsyncConnect)
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{
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BOOL isOK = FALSE;
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if(bAsyncConnect)
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{
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if(::WSAEventSelect(m_soClient, m_evSocket, FD_CONNECT | FD_CLOSE) != SOCKET_ERROR)
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{
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int rc = ::connect(m_soClient, addrRemote.Addr(), addrRemote.AddrSize());
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isOK = (rc == NO_ERROR || (rc == SOCKET_ERROR && ::WSAGetLastError() == WSAEWOULDBLOCK));
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}
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}
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else
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{
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if(::connect(m_soClient, addrRemote.Addr(), addrRemote.AddrSize()) != SOCKET_ERROR)
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{
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if(::WSAEventSelect(m_soClient, m_evSocket, FD_READ | FD_WRITE | FD_CLOSE) != SOCKET_ERROR)
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{
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SetConnected();
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if(TRIGGER(FireConnect()) == HR_ERROR)
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::WSASetLastError(ENSURE_ERROR_CANCELLED);
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else
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{
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ENSURE(DetectConnection() == NO_ERROR);
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isOK = TRUE;
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}
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}
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}
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}
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return isOK;
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}
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BOOL CUdpClient::CreateWorkerThread()
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{
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m_hWorker = (HANDLE)_beginthreadex(nullptr, 0, WorkerThreadProc, (LPVOID)this, 0, &m_dwWorkerID);
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return m_hWorker != nullptr;
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}
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UINT WINAPI CUdpClient::WorkerThreadProc(LPVOID pv)
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{
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::SetCurrentWorkerThreadName();
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TRACE("---------------> Client Worker Thread 0x%08X started <---------------\n", SELF_THREAD_ID);
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CUdpClient* pClient = (CUdpClient*)pv;
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pClient->OnWorkerThreadStart(SELF_THREAD_ID);
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BOOL bCallStop = TRUE;
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DWORD dwSize = 4;
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DWORD dwIndex = 0;
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BOOL bDetect = pClient->IsNeedDetect();
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HANDLE hUserEvt = pClient->GetUserEvent();
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if(bDetect) ++dwSize;
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if(hUserEvt != nullptr) ++dwSize;
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HANDLE* hEvents = CreateLocalObjects(HANDLE, dwSize);
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hEvents[dwIndex++] = pClient->m_evSocket;
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hEvents[dwIndex++] = pClient->m_evBuffer;
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hEvents[dwIndex++] = pClient->m_evWorker;
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hEvents[dwIndex++] = pClient->m_evUnpause;
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unique_ptr<CTimerEvt> evDetectPtr;
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if(bDetect)
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{
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evDetectPtr.reset(new CTimerEvt());
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evDetectPtr->Set(pClient->m_dwDetectInterval);
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hEvents[dwIndex++] = evDetectPtr->GetHandle();
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}
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if(hUserEvt != nullptr)
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hEvents[dwIndex++] = hUserEvt;
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pClient->m_rcBuffer.Malloc(pClient->m_dwMaxDatagramSize);
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while(pClient->HasStarted())
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{
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DWORD retval = ::WSAWaitForMultipleEvents(dwSize, hEvents, FALSE, WSA_INFINITE, FALSE);
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if(retval == WSA_WAIT_EVENT_0)
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{
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if(!pClient->ProcessNetworkEvent())
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break;
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}
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else if(retval == WSA_WAIT_EVENT_0 + 1)
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{
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if(!pClient->SendData())
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break;
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}
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else if(retval == WSA_WAIT_EVENT_0 + 2)
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{
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bCallStop = FALSE;
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break;
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}
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else if(retval == WSA_WAIT_EVENT_0 + 3)
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{
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if(!pClient->ReadData())
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break;
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}
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else if(retval == WSA_WAIT_EVENT_0 + 4)
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{
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if(bDetect)
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{
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if(!pClient->CheckConnection())
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break;
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}
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else
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{
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if(!pClient->OnUserEvent())
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{
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pClient->m_ccContext.Reset(TRUE, SO_CLOSE, ENSURE_ERROR_CANCELLED);
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break;
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}
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}
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}
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else if(retval == WSA_WAIT_EVENT_0 + 5)
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{
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if(!pClient->OnUserEvent())
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{
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pClient->m_ccContext.Reset(TRUE, SO_CLOSE, ENSURE_ERROR_CANCELLED);
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break;
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}
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}
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else if(retval == WSA_WAIT_FAILED)
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{
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pClient->m_ccContext.Reset(TRUE, SO_UNKNOWN, ::WSAGetLastError());
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break;
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}
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else
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ENSURE(FALSE);
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}
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pClient->OnWorkerThreadEnd(SELF_THREAD_ID);
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if(bCallStop && pClient->HasStarted())
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pClient->Stop();
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TRACE("---------------> Client Worker Thread 0x%08X stoped <---------------\n", SELF_THREAD_ID);
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return 0;
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}
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BOOL CUdpClient::CheckConnection()
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{
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if(m_dwDetectFails++ >= m_dwDetectAttempts)
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{
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m_ccContext.Reset(TRUE, SO_CLOSE, NO_ERROR, FALSE);
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return FALSE;
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}
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DetectConnection();
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return TRUE;
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}
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int CUdpClient::DetectConnection()
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{
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int result = NO_ERROR;
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if(send(m_soClient, nullptr, 0, 0) == SOCKET_ERROR)
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{
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result = ::WSAGetLastError();
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if(result == WSAEWOULDBLOCK)
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result = NO_ERROR;
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}
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if(result == NO_ERROR)
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{
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TRACE("<C-CNNID: %Iu> send 0 bytes (detect package succ)\n", m_dwConnID);
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}
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else
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{
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TRACE("<C-CNNID: %Iu> send 0 bytes (detect package fail [%d])\n", m_dwConnID, result);
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}
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return result;
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}
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BOOL CUdpClient::ProcessNetworkEvent()
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{
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BOOL bContinue = TRUE;
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WSANETWORKEVENTS events;
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int rc = ::WSAEnumNetworkEvents(m_soClient, m_evSocket, &events);
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if(rc == SOCKET_ERROR)
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bContinue = HandleError(events);
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if(!IsConnected() && bContinue && events.lNetworkEvents & FD_CONNECT)
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bContinue = HandleConnect(events);
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if(bContinue && events.lNetworkEvents & FD_READ)
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bContinue = HandleRead(events);
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if(bContinue && events.lNetworkEvents & FD_WRITE)
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bContinue = HandleWrite(events);
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if(bContinue && events.lNetworkEvents & FD_CLOSE)
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bContinue = HandleClose(events);
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return bContinue;
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}
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BOOL CUdpClient::HandleError(WSANETWORKEVENTS& events)
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{
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int iCode = ::WSAGetLastError();
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EnSocketOperation enOperation = SO_UNKNOWN;
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if(events.lNetworkEvents & FD_CONNECT)
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enOperation = SO_CONNECT;
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else if(events.lNetworkEvents & FD_CLOSE)
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enOperation = SO_CLOSE;
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else if(events.lNetworkEvents & FD_READ)
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enOperation = SO_RECEIVE;
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else if(events.lNetworkEvents & FD_WRITE)
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enOperation = SO_SEND;
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ENSURE(::WSAResetEvent(m_evSocket));
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m_ccContext.Reset(TRUE, enOperation, iCode);
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return FALSE;
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}
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BOOL CUdpClient::HandleRead(WSANETWORKEVENTS& events)
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{
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BOOL bContinue = TRUE;
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int iCode = events.iErrorCode[FD_READ_BIT];
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if(iCode == 0)
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bContinue = ReadData();
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else
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{
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m_ccContext.Reset(TRUE, SO_RECEIVE, iCode);
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bContinue = FALSE;
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}
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return bContinue;
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}
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BOOL CUdpClient::HandleWrite(WSANETWORKEVENTS& events)
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{
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BOOL bContinue = TRUE;
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int iCode = events.iErrorCode[FD_WRITE_BIT];
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if(iCode == 0)
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bContinue = SendData();
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else
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{
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m_ccContext.Reset(TRUE, SO_SEND, iCode);
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bContinue = FALSE;
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}
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return bContinue;
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}
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BOOL CUdpClient::HandleConnect(WSANETWORKEVENTS& events)
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{
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int iCode = events.iErrorCode[FD_CONNECT_BIT];
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if(iCode != 0)
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{
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m_ccContext.Reset(TRUE, SO_CONNECT, iCode);
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return FALSE;
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}
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if(::WSAEventSelect(m_soClient, m_evSocket, FD_READ | FD_WRITE | FD_CLOSE) == SOCKET_ERROR)
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{
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m_ccContext.Reset(TRUE, SO_CONNECT, ::WSAGetLastError());
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return FALSE;
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}
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SetConnected();
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if(TRIGGER(FireConnect()) != HR_ERROR)
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ENSURE(DetectConnection() == NO_ERROR);
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else
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{
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m_ccContext.Reset(FALSE, SO_CLOSE, ENSURE_ERROR_CANCELLED, FALSE);
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return FALSE;
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}
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return TRUE;
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}
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BOOL CUdpClient::HandleClose(WSANETWORKEVENTS& events)
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{
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int iCode = events.iErrorCode[FD_CLOSE_BIT];
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if(iCode == 0)
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m_ccContext.Reset(TRUE, SO_CLOSE, SE_OK);
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else
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m_ccContext.Reset(TRUE, SO_CLOSE, iCode);
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return FALSE;
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}
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BOOL CUdpClient::ReadData()
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{
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while(TRUE)
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{
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if(m_bPaused)
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break;
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int rc = recv(m_soClient, (char*)(BYTE*)m_rcBuffer, m_dwMaxDatagramSize, 0);
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if(rc > 0)
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{
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m_dwDetectFails = 0;
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if(::IsUdpCloseNotify(m_rcBuffer, rc))
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{
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m_ccContext.Reset(TRUE, SO_CLOSE, NO_ERROR, FALSE);
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return FALSE;
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}
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if(TRIGGER(FireReceive(m_rcBuffer, rc)) == HR_ERROR)
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{
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TRACE("<C-CNNID: %Iu> OnReceive() event return 'HR_ERROR', connection will be closed !\n", m_dwConnID);
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m_ccContext.Reset(TRUE, SO_RECEIVE, ENSURE_ERROR_CANCELLED);
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return FALSE;
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}
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}
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else if(rc == SOCKET_ERROR)
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{
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int code = ::WSAGetLastError();
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if(code == WSAEWOULDBLOCK)
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break;
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else if(IS_UDP_RESET_ERROR(code))
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continue;
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else
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{
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m_ccContext.Reset(TRUE, SO_RECEIVE, code);
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return FALSE;
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}
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}
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else if(rc == 0)
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{
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m_dwDetectFails = 0;
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TRACE("<C-CNNID: %Iu> recv 0 bytes (detect package)\n", m_dwConnID);
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}
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else
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ASSERT(FALSE);
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}
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return TRUE;
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}
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BOOL CUdpClient::PauseReceive(BOOL bPause)
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{
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if(!IsConnected())
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{
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::SetLastError(ERROR_INVALID_STATE);
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return FALSE;
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}
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if(m_bPaused == bPause)
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return TRUE;
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|
|
if(::WSAEventSelect(m_soClient, m_evSocket, bPause ? 0 : FD_READ | FD_WRITE | FD_CLOSE) != SOCKET_ERROR)
|
|
{
|
|
m_bPaused = bPause;
|
|
|
|
if(!bPause)
|
|
m_evUnpause.Set();
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL CUdpClient::SendData()
|
|
{
|
|
while(TRUE)
|
|
{
|
|
TItemPtr itPtr(m_itPool, GetSendBuffer());
|
|
|
|
if(itPtr.IsValid())
|
|
{
|
|
ASSERT(!itPtr->IsEmpty());
|
|
|
|
int rc = send(m_soClient, (char*)itPtr->Ptr(), itPtr->Size(), 0);
|
|
|
|
if(rc > 0)
|
|
{
|
|
ASSERT(rc == itPtr->Size());
|
|
|
|
{
|
|
CCriSecLock locallock(m_csSend);
|
|
m_iPending -= rc;
|
|
}
|
|
|
|
if(TRIGGER(FireSend(itPtr->Ptr(), rc)) == HR_ERROR)
|
|
{
|
|
TRACE("<C-CNNID: %Iu> OnSend() event should not return 'HR_ERROR' !!\n", m_dwConnID);
|
|
ASSERT(FALSE);
|
|
}
|
|
}
|
|
else if(rc == SOCKET_ERROR)
|
|
{
|
|
int iCode = ::WSAGetLastError();
|
|
|
|
if(iCode == WSAEWOULDBLOCK)
|
|
{
|
|
CCriSecLock locallock(m_csSend);
|
|
m_lsSend.PushFront(itPtr.Detach());
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
m_ccContext.Reset(TRUE, SO_SEND, iCode);
|
|
return FALSE;
|
|
}
|
|
}
|
|
else
|
|
ASSERT(FALSE);
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
TItem* CUdpClient::GetSendBuffer()
|
|
{
|
|
TItem* pItem = nullptr;
|
|
|
|
if(m_iPending > 0)
|
|
{
|
|
CCriSecLock locallock(m_csSend);
|
|
pItem = m_lsSend.PopFront();
|
|
}
|
|
|
|
return pItem;
|
|
}
|
|
|
|
BOOL CUdpClient::Stop()
|
|
{
|
|
DWORD dwCurrentThreadID = SELF_THREAD_ID;
|
|
|
|
if(!CheckStoping(dwCurrentThreadID))
|
|
return FALSE;
|
|
|
|
WaitForWorkerThreadEnd(dwCurrentThreadID);
|
|
|
|
CheckConnected();
|
|
|
|
if(m_ccContext.bFireOnClose)
|
|
FireClose(m_ccContext.enOperation, m_ccContext.iErrorCode);
|
|
|
|
if(m_evSocket != nullptr)
|
|
{
|
|
::WSACloseEvent(m_evSocket);
|
|
m_evSocket = nullptr;
|
|
}
|
|
|
|
if(m_soClient != INVALID_SOCKET)
|
|
{
|
|
shutdown(m_soClient, SD_SEND);
|
|
closesocket(m_soClient);
|
|
m_soClient = INVALID_SOCKET;
|
|
}
|
|
|
|
Reset();
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void CUdpClient::Reset()
|
|
{
|
|
CCriSecLock locallock(m_csSend);
|
|
|
|
m_rcBuffer.Free();
|
|
m_evBuffer.Reset();
|
|
m_evWorker.Reset();
|
|
m_evUnpause.Reset();
|
|
m_lsSend.Clear();
|
|
m_itPool.Clear();
|
|
|
|
m_strHost.Empty();
|
|
|
|
m_usPort = 0;
|
|
m_iPending = 0;
|
|
m_dwDetectFails = 0;
|
|
m_bPaused = FALSE;
|
|
m_enState = SS_STOPPED;
|
|
|
|
m_evWait.Set();
|
|
}
|
|
|
|
void CUdpClient::WaitForWorkerThreadEnd(DWORD dwCurrentThreadID)
|
|
{
|
|
if(m_hWorker != nullptr)
|
|
{
|
|
if(dwCurrentThreadID != m_dwWorkerID)
|
|
{
|
|
m_evWorker.Set();
|
|
ENSURE(::MsgWaitForSingleObject(m_hWorker));
|
|
}
|
|
|
|
::CloseHandle(m_hWorker);
|
|
|
|
m_hWorker = nullptr;
|
|
m_dwWorkerID = 0;
|
|
}
|
|
}
|
|
|
|
void CUdpClient::CheckConnected()
|
|
{
|
|
if(!IsConnected())
|
|
return;
|
|
|
|
if(m_ccContext.bNotify)
|
|
::SendUdpCloseNotify(m_soClient);
|
|
|
|
SetConnected(FALSE);
|
|
}
|
|
|
|
BOOL CUdpClient::DoSend(const BYTE* pBuffer, int iLength, int iOffset)
|
|
{
|
|
ASSERT(pBuffer && iLength > 0 && iLength <= (int)m_dwMaxDatagramSize);
|
|
|
|
int result = NO_ERROR;
|
|
|
|
if(pBuffer && iLength > 0 && iLength <= (int)m_dwMaxDatagramSize)
|
|
{
|
|
if(IsConnected())
|
|
{
|
|
if(iOffset != 0) pBuffer += iOffset;
|
|
|
|
TItemPtr itPtr(m_itPool, m_itPool.PickFreeItem());
|
|
itPtr->Cat(pBuffer, iLength);
|
|
|
|
result = SendInternal(itPtr);
|
|
}
|
|
else
|
|
result = ERROR_INVALID_STATE;
|
|
}
|
|
else
|
|
result = ERROR_INVALID_PARAMETER;
|
|
|
|
if(result != NO_ERROR)
|
|
::SetLastError(result);
|
|
|
|
return (result == NO_ERROR);
|
|
}
|
|
|
|
BOOL CUdpClient::SendPackets(const WSABUF pBuffers[], int iCount)
|
|
{
|
|
ASSERT(pBuffers && iCount > 0);
|
|
|
|
if(!pBuffers || iCount <= 0)
|
|
return ERROR_INVALID_PARAMETER;
|
|
if(!IsConnected())
|
|
return ERROR_INVALID_STATE;
|
|
|
|
int result = NO_ERROR;
|
|
int iLength = 0;
|
|
int iMaxLen = (int)m_dwMaxDatagramSize;
|
|
|
|
TItemPtr itPtr(m_itPool, m_itPool.PickFreeItem());
|
|
|
|
for(int i = 0; i < iCount; i++)
|
|
{
|
|
int iBufLen = pBuffers[i].len;
|
|
|
|
if(iBufLen > 0)
|
|
{
|
|
BYTE* pBuffer = (BYTE*)pBuffers[i].buf;
|
|
ASSERT(pBuffer);
|
|
|
|
iLength += iBufLen;
|
|
|
|
if(iLength <= iMaxLen)
|
|
itPtr->Cat(pBuffer, iBufLen);
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(iLength > 0 && iLength <= iMaxLen)
|
|
result = SendInternal(itPtr);
|
|
else
|
|
result = ERROR_INCORRECT_SIZE;
|
|
|
|
if(result != NO_ERROR)
|
|
::SetLastError(result);
|
|
|
|
return (result == NO_ERROR);
|
|
}
|
|
|
|
int CUdpClient::SendInternal(TItemPtr& itPtr)
|
|
{
|
|
int iPending;
|
|
|
|
{
|
|
CCriSecLock locallock(m_csSend);
|
|
|
|
if(!IsConnected())
|
|
return ERROR_INVALID_STATE;
|
|
|
|
iPending = m_iPending;
|
|
m_iPending += itPtr->Size();
|
|
|
|
ASSERT(m_iPending > 0);
|
|
|
|
m_lsSend.PushBack(itPtr.Detach());
|
|
}
|
|
|
|
if(iPending == 0 && m_iPending > 0) m_evBuffer.Set();
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void CUdpClient::SetLastError(EnSocketError code, LPCSTR func, int ec)
|
|
{
|
|
TRACE("%s --> Error: %d, EC: %d\n", func, code, ec);
|
|
|
|
m_enLastError = code;
|
|
::SetLastError(ec);
|
|
}
|
|
|
|
BOOL CUdpClient::GetLocalAddress(TCHAR lpszAddress[], int& iAddressLen, USHORT& usPort)
|
|
{
|
|
ASSERT(lpszAddress != nullptr && iAddressLen > 0);
|
|
|
|
return ::GetSocketLocalAddress(m_soClient, lpszAddress, iAddressLen, usPort);
|
|
}
|
|
|
|
void CUdpClient::SetRemoteHost(LPCTSTR lpszHost, USHORT usPort)
|
|
{
|
|
m_strHost = lpszHost;
|
|
m_usPort = usPort;
|
|
}
|
|
|
|
BOOL CUdpClient::GetRemoteHost(TCHAR lpszHost[], int& iHostLen, USHORT& usPort)
|
|
{
|
|
BOOL isOK = FALSE;
|
|
|
|
if(m_strHost.IsEmpty())
|
|
return isOK;
|
|
|
|
int iLen = m_strHost.GetLength() + 1;
|
|
|
|
if(iHostLen >= iLen)
|
|
{
|
|
memcpy(lpszHost, CA2CT(m_strHost), iLen * sizeof(TCHAR));
|
|
usPort = m_usPort;
|
|
|
|
isOK = TRUE;
|
|
}
|
|
|
|
iHostLen = iLen;
|
|
|
|
return isOK;
|
|
}
|
|
|
|
BOOL CUdpClient::GetRemoteHost(LPCSTR* lpszHost, USHORT* pusPort)
|
|
{
|
|
*lpszHost = m_strHost;
|
|
|
|
if(pusPort != nullptr)
|
|
*pusPort = m_usPort;
|
|
|
|
return !m_strHost.IsEmpty();
|
|
}
|
|
|
|
#endif
|