public int ReceiveOnce()
{
try
{
if (!Monitor.TryEnter(this, 1000))
{
return(-1); //進不去先離開
}
if (!this.mreIsReceiving.WaitOne(10))
{
return(0); //接收中先離開
}
this.mreIsReceiving.Reset(); //先卡住, 不讓後面的再次進行
var ea = new CtkProtocolEventArgs()
{
Sender = this,
};
ea.TrxMessage = new CtkProtocolBufferMessage(1518);
var trxBuffer = ea.TrxMessage.ToBuffer();
trxBuffer.Length = this.WorkSocket.Receive(trxBuffer.Buffer, 0, trxBuffer.Buffer.Length, SocketFlags.None);
if (trxBuffer.Length == 0)
{
return(-1);
}
this.OnDataReceive(ea);
}
catch (Exception ex)
{
this.OnErrorReceive(new CtkProtocolEventArgs()
{
Message = "Read Fail"
});
//當 this.ConnSocket == this.WorkSocket 時, 代表這是 client 端
this.Disconnect();
if (this.ConnSocket != this.WorkSocket)
{
CtkNetUtil.DisposeSocketTry(this.WorkSocket); //執行出現例外, 先釋放Socket
}
throw ex; //同步型作業, 直接拋出例外, 不用寫Log
}
finally
{
try { this.mreIsReceiving.Set(); /*同步型的, 結束就可以Set*/ }
catch (ObjectDisposedException) { }
if (Monitor.IsEntered(this))
{
Monitor.Exit(this);
}
}
return(0);
}
public void Disconnect()
{
try { this.mreIsReceiving.Set(); /*僅Set不釋放, 可能還會使用*/ } catch (ObjectDisposedException) { }
try { this.mreIsConnecting.Set(); /*僅Set不釋放, 可能還會使用*/ } catch (ObjectDisposedException) { }
CtkNetUtil.DisposeSocketTry(this.m_workSocket);
CtkNetUtil.DisposeSocketTry(this.m_connSocket);
this.OnDisconnect(new CtkProtocolEventArgs()
{
Message = "Disconnect method is executed"
});
}
public int ConnectTryStart()
{
if (this.IsOpenRequesting || this.IsRemoteConnected)
{
return(0);
}
//if (this.IsLocalReadyConnect) return; //同步連線是等到連線才離開method, 不需判斷 IsLocalReadyConnect
try
{
if (!Monitor.TryEnter(this, 3000))
{
return(-1); // throw new CtkException("Cannot enter lock");
}
if (!this.mreIsConnecting.WaitOne(10))
{
return(0); //連線中先離開
}
this.mreIsConnecting.Reset(); //先卡住, 不讓後面的再次進行
//若連線不曾建立, 或聆聽/連線被關閉
if (this.m_connSocket == null || !this.m_connSocket.Connected)
{
CtkNetUtil.DisposeSocketTry(this.m_connSocket); //Dispose舊的
this.m_connSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //建立新的
}
if (this.IsActively)
{
if (this.LocalUri != null && !this.ConnSocket.IsBound)
{
this.ConnSocket.Bind(CtkNetUtil.ToIPEndPoint(this.LocalUri));
}
if (this.RemoteUri == null)
{
throw new CtkException("remote field can not be null");
}
this.ConnSocket.BeginConnect(CtkNetUtil.ToIPEndPoint(this.RemoteUri), new AsyncCallback(EndConnectCallback), this);
}
else
{
if (this.LocalUri == null)
{
throw new Exception("local field can not be null");
}
if (!this.ConnSocket.IsBound)
{
this.ConnSocket.Bind(CtkNetUtil.ToIPEndPoint(this.LocalUri));
}
this.ConnSocket.Listen(100);
this.ConnSocket.BeginAccept(new AsyncCallback(EndAcceptCallback), this);
}
return(0);
}
catch (Exception ex)
{
//一旦聆聽/連線失敗, 直接關閉所有Socket, 重新來過
this.Disconnect();
this.OnFailConnect(new CtkProtocolEventArgs()
{
Message = "Connect Fail"
});
throw ex;//同步型作業, 直接拋出例外, 不用寫Log
}
finally
{
if (Monitor.IsEntered(this))
{
Monitor.Exit(this);
}
}
}
