live555 任务调度处理函数使用

来源：互联网发布：数据分发服务器编辑：程序博客网时间：2024/05/22 12:54

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live555 任务调度采用几个函数进行设置

void setBackgroundHandling(int socketNum, int conditionSet　,BackgroundHandlerProc* handlerProc, void* clientData)

以RTSP 连接处理为例

RTSPServer::RTSPClientConnection::RTSPClientConnection(RTSPServer& ourServer, int clientSocket, struct sockaddr_in clientAddr)  : fOurServer(ourServer), fIsActive(True),    fClientInputSocket(clientSocket), fClientOutputSocket(clientSocket), fClientAddr(clientAddr),    fRecursionCount(0), fOurSessionCookie(NULL) {  // Add ourself to our 'client connections' table:  fOurServer.fClientConnections->Add((char const*)this, this);    // Arrange to handle incoming requests:  resetRequestBuffer();  envir().taskScheduler().setBackgroundHandling(fClientInputSocket, SOCKET_READABLE|SOCKET_EXCEPTION,(TaskScheduler::BackgroundHandlerProc*)&incomingRequestHandler, this);}

析构函数中关闭socket 需要移除处理函数

void RTSPServer::RTSPClientConnection::closeSockets() {  // Turn off background handling on our input socket (and output socket, if different); then close it (or them):  if (fClientOutputSocket != fClientInputSocket) {    envir().taskScheduler().disableBackgroundHandling(fClientOutputSocket);    ::closeSocket(fClientOutputSocket);  }    envir().taskScheduler().disableBackgroundHandling(fClientInputSocket);  ::closeSocket(fClientInputSocket);    fClientInputSocket = fClientOutputSocket = -1;}

添加延迟任务：

TaskToken scheduleDelayedTask(int64_t microseconds, TaskFunc* proc,void* clientData)

在我的RTSP客户端中使用的示例:

void CloseClientFun(void *data){   RTSPClient* pClient=(RTSPClient*)data;shutdownStream(pClient,0);}int CStreamItem::Close(){if (m_pRtspClient){m_pRtspClient->m_lpStreamCallBack=NULL;m_pRtspClient->m_pUserData=NULL;theApp.g_scheduler->scheduleDelayedTask(1, CloseClientFun, m_pRtspClient);m_pRtspClient=NULL;}return 0;}

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