/// <summary>
/// 接收指令
/// </summary>
/// <param name="socket"></param>
/// <returns>RequestCommandsEnum.Error 连接自动中断</returns>
protected RequestCommandsEnum ReceiveCommand(Socket socket)
{
RequestCommandsEnum command = RequestCommandsEnum.Default;
int readCount = 0;
try
{
readCount = socket.Receive(Buffer, RequestConstants.SocketCommandLength, 0);
}
catch
{
command = RequestCommandsEnum.Error;
}
if (readCount == 0)
{
CloseConnection(socket);
}
else
{
string text = System.Text.Encoding.Default.GetString(Buffer, 0, 1);
if (!Enum.TryParse <RequestCommandsEnum>(text, out command))
{
Log.WriteLog("指令错误:", text);
CloseConnection(socket);
}
}
return(command);
}
/// <summary>
/// 发送指令及数据
/// </summary>
/// <param name="socket"></param>
/// <param name="command"></param>
/// <param name="text"></param>
/// <returns></returns>
protected int SendCommandText(Socket socket, RequestCommandsEnum command, string text = "")
{
if (CheckConnection(socket))
{
byte[] buffer = System.Text.Encoding.Default.GetBytes(((int)command).ToString() + text);
return(socket.Send(buffer, buffer.Length, 0));
}
else
{
CloseConnection(socket);
return(-1);
}
}
/// <summary>
/// 启用拨号
/// </summary>
public void Call(string targetName)
{
//主拨检查
int result = IsOtherCallExist(targetName);
if (result == -1)
{
//当前拨号已存在
OnTaskExisted();
return;
}
else if (result == 1)
{
Log.WriteLog("已存在主拨请求");
OnConfirmCallWhileHandling(targetName);
//检查任务是否已取消
while (TargetClient != null)
{
//检查任务是否可以继续执行
if (CLPop(targetName + TaskParam._Submit))
{
//清理其他任务
ClearOtherCall();
//检查其他任务是否已清理
int timeS = 1;
int timeE = 4;
while (timeS < timeE)
{
Thread.Sleep(500);
if (IsOtherCallExist(targetName) == 0)
{
break;
}
timeS++;
if (timeS == timeE)
{
OnTaskClearFailed();
return;
}
}
break;
}
else if (CLPop(targetName + TaskParam._Cancel))
{
return;
}
else
{
Thread.Sleep(200);
}
}
}
//请求服务器
Socket server = Connect(ServerHost, ServerPort);
if (!CheckConnection(server))
{
return;//连接失败错误
}
//主动拨号请求
TargetClient = server;
TargetName = targetName;
Log.WriteLog("客户{0}启用拨号对象:{1}", Name, targetName);
string text = string.Format(RequestConstants.CallPattern, Name, targetName);
SendCommandText(TargetClient, RequestCommandsEnum.CallCommand, text);
//非阻塞式
while (CheckConnection(TargetClient))
{
//接收请求反馈
RequestCommandsEnum command = ReceiveCommand(TargetClient);
switch (command)
{
//默认回复Default
case RequestCommandsEnum.Default:
if (CLPop(targetName + TaskParam._Cancel))
{
Log.WriteLog("主动中断通话请求");
OnCallCanceled(targetName);
CloseTargetCall();
return;
}
else
{
SendCommandText(TargetClient, RequestCommandsEnum.Default);
break;
}
case RequestCommandsEnum.RejectCommand:
Log.WriteLog("对方拒绝通话请求", Name);
OnCallRejected(targetName);
CloseTargetCall();
return;
case RequestCommandsEnum.AcceptCommand:
Log.WriteLog("对方接收通话请求", Name);
OnCallAccepted(targetName);
StartAudio(TargetClient, targetName, true);
return;
case RequestCommandsEnum.Error:
case RequestCommandsEnum.CallCommand:
case RequestCommandsEnum.CancelCommand:
Log.WriteLog("信号异常", Name);
OnCallRejected(targetName);
//OnCallError(targetName);
CloseTargetCall();
return;
}
}
//阻塞式
////接收请求反馈
//RequestCommandsEnum command = ReceiveCommand(server);
//switch (command)
//{
// case RequestCommandsEnum.CancelCommand:
// CloseConnection(server,true);
// //OnCallCanceled(targetName);
// CallingClient = null;
// break;
// case RequestCommandsEnum.Default:
// case RequestCommandsEnum.Error:
// case RequestCommandsEnum.CallCommand:
// case RequestCommandsEnum.SignOnCommand:
// Log.WriteLog("通话请求反馈内容错误", Name);
// CloseConnection(server,true);
// OnCallErrored(targetName);
// CallingClient = null;
// break;
// case RequestCommandsEnum.RejectCommand:
// Log.WriteLog("对方拒接通话请求", Name);
// CloseConnection(server, true);
// OnCallRejected(targetName);
// CallingClient = null;
// break;
// case RequestCommandsEnum.AcceptCommand:
// Log.WriteLog("对方接收通话请求", Name);
// StartAudio(server, targetName,true);
// OnCallAccepted(targetName);
// CallingClient = null;
// break;
//}
}
