CgwMonitorManage.VideoMonitor.VideoMonitorManage.Unload C# (CSharp) Method

        public SmcErr Unload()
        {
            NLogEx.LoggerEx logEx = new NLogEx.LoggerEx(log);
            logEx.Info("Enter: VideoMonitorManage.Unload().");
            SmcErr err = new CgwError();
            if (this.monitorsOperateLock.TryEnterWriteLock(CgwConst.ENTER_LOCK_WAIT_TIME))
            {
                try
                {
                    foreach (KeyValuePair<string, IVideoMonitor> monitor in monitorsDictionary)
                    {
                        IVideoMonitor videoMonitor = monitor.Value;
                        SmcErr result = videoMonitor.Unload();
                        if (!result.IsSuccess())
                        {
                            logEx.Error("Unload monitor failed.Monitor id:{0} ,Error code:{1}", monitor.Key, result.ErrNo);
                            //一个失败,记录失败，继续其他平台卸载
                            err.SetErrorNo(result.ErrNo);
                            continue;
                        }
                    }
                    monitorsDictionary.Clear();
                }
                catch (Exception e)
                {
                    logEx.Error("Unload monitor failed..Execption message:{0}", e.Message);
                }
                finally
                {
                    this.monitorsOperateLock.ExitWriteLock();
                }
            }

            return err;
        }