Cgw.Channel.MonitorChannelRelationManager.TryStartSendRtpData C# (CSharp) Method

        private SmcErr TryStartSendRtpData(string cameraNo, string channelLabel)
        {
            SmcErr err = new CgwError();
            NLogEx.LoggerEx logEx = new NLogEx.LoggerEx(log);
            logEx.Trace("TryStartSendRtpData start.cameraNo:{0},channelLabel:{1}", cameraNo, channelLabel);

            try
            {
                //bool successed = this.cameraVideoRelationDicLocker.TryEnterWriteLock(CgwConst.ENTER_LOCK_WAIT_TIME);
                //// 申请互斥
                //if (successed)
                //{
                //    try
                //    {

                if (!this.cameraVideoRelationDic.ContainsKey(cameraNo))
                {
                    if (this.cameraVideoRelationDicLocker.TryEnterWriteLock(CgwConst.ENTER_LOCK_WAIT_TIME))
                    {
                        try
                        {
                            if (startCameraLists.Contains(cameraNo))
                            {
                                logEx.Trace("TryStartSendRtpData start.Contains CameraNo:{0}",cameraNo);
                                err.SetErrorNo(CgwError.START_RECEIVE_VIDEO_FAILED);
                                return err;
                            }
                            else
                            {
                                startCameraLists.Add(cameraNo);
                                logEx.Info("TryStartSendRtpData start.Add CameraNo:{0}",cameraNo);
                            }
                        }
                        finally
                        {
                            this.cameraVideoRelationDicLocker.ExitWriteLock();
                        }
                    }
                    string pipeName = "";
                    logEx.Trace("TryStartSendRtpData Begin StartReceiveVideo cameraNo={0}", cameraNo);
                    err = CgwMonitorManageAdapter.Instance().StartReceiveVideoByPipe(cameraNo, out pipeName);
                    //startCameraLists.Remove(cameraNo);
                    if (!err.IsSuccess())
                    {
                        logEx.Error("TryStartSendRtpData StartReceiveVideo cameraNo={0} failed.", cameraNo);
                        startCameraLists.Remove(cameraNo);
                        return err;
                    }
                    //this.cameraVideoRelationDic.Add(cameraNo, new List<string>());
                }

                if (this.cameraVideoRelationDicLocker.TryEnterWriteLock(CgwConst.ENTER_LOCK_WAIT_TIME))
                {
                    try
                    {
                        if (!this.cameraVideoRelationDic.ContainsKey(cameraNo))
                        {
                            this.cameraVideoRelationDic.Add(cameraNo, new List<string>());
                        }
                        if (startCameraLists.Contains(cameraNo))
                        {
                            startCameraLists.Remove(cameraNo);
                        }

                        // 判断通道是否已经存在
                        bool isExist = this.cameraVideoRelationDic[cameraNo].Exists(a => { return a == channelLabel; });
                        if (!isExist)
                        {
                            logEx.Trace("TryStartSendRtpData add CameraVideoRelationDic cameraNo={0},channelLabel={1}", cameraNo, channelLabel);
                            this.cameraVideoRelationDic[cameraNo].Add(channelLabel);
                        }
                    }
                    finally
                    {
                        this.cameraVideoRelationDicLocker.ExitWriteLock();
                    }
                }
                else
                {
                    err.SetErrorNo(CgwError.ERR_CGW_CHANNEL_GET_LOCK_FAIL);
                    logEx.Error("TryStartSendRtpData: Enert Write Lock Failed.WaitingReadCount:{0};WaitingWriteCount:{1}.", this.cameraVideoRelationDicLocker.WaitingReadCount, this.cameraVideoRelationDicLocker.WaitingWriteCount);
                }
                //}
                //finally
                //{
                //    // 释放互斥量
                //    this.cameraVideoRelationDicLocker.ExitWriteLock();
                //}
                //}
                //else
                //{
                //    // 日志
                //    err.SetErrorNo(CgwError.ERR_CGW_CHANNEL_GET_LOCK_FAIL);
                //    logEx.Error("TryStartSendRtpData: Enert Write Lock Failed.WaitingReadCount:{0};WaitingWriteCount:{1}.", this.cameraVideoRelationDicLocker.WaitingReadCount, this.cameraVideoRelationDicLocker.WaitingWriteCount);
                //}
            }
            catch (Exception ex)
            {
                // 日志
                err.SetErrorNo(CgwError.ERR_CGW_CHANNEL_SERVICE_ADNORMAL);
                logEx.Error(ex, "TryStartSendRtpData: Enert Write Lock Exception.");
            }

            logEx.Trace("TryStartSendRtpData cameraNo={0}, channelLabel={1} successfully.", cameraNo, channelLabel);
            return err;
        }