mirror of
https://github.com/esiur/esiur-dotnet.git
synced 2025-06-27 13:33:13 +00:00
Rename
This commit is contained in:
659
Esiur/Net/Sockets/TCPSocket.cs
Normal file
659
Esiur/Net/Sockets/TCPSocket.cs
Normal file
@ -0,0 +1,659 @@
|
||||
/*
|
||||
|
||||
Copyright (c) 2017 Ahmed Kh. Zamil
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
|
||||
*/
|
||||
|
||||
using System;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Text;
|
||||
using System.Net.Sockets;
|
||||
using System.Net;
|
||||
using Esiur.Misc;
|
||||
using Esiur.Core;
|
||||
using System.Threading;
|
||||
using Esiur.Resource;
|
||||
using System.Threading.Tasks;
|
||||
using Esiur.Data;
|
||||
|
||||
namespace Esiur.Net.Sockets
|
||||
{
|
||||
public class TCPSocket : ISocket
|
||||
{
|
||||
public INetworkReceiver<ISocket> Receiver { get; set; }
|
||||
|
||||
Socket sock;
|
||||
byte[] receiveBuffer;
|
||||
|
||||
bool held;
|
||||
|
||||
//ArraySegment<byte> receiveBufferSegment;
|
||||
|
||||
NetworkBuffer receiveNetworkBuffer = new NetworkBuffer();
|
||||
|
||||
readonly object sendLock = new object();
|
||||
|
||||
Queue<KeyValuePair<AsyncReply<bool>, byte[]>> sendBufferQueue = new Queue<KeyValuePair<AsyncReply<bool>, byte[]>>();// Queue<byte[]>();
|
||||
|
||||
bool asyncSending;
|
||||
bool began = false;
|
||||
|
||||
|
||||
SocketState state = SocketState.Initial;
|
||||
|
||||
//public event ISocketReceiveEvent OnReceive;
|
||||
//public event ISocketConnectEvent OnConnect;
|
||||
//public event ISocketCloseEvent OnClose;
|
||||
public event DestroyedEvent OnDestroy;
|
||||
|
||||
//SocketAsyncEventArgs socketArgs = new SocketAsyncEventArgs();
|
||||
|
||||
private AsyncCallback receiveCallback;
|
||||
private AsyncCallback sendCallback;
|
||||
|
||||
public AsyncReply<bool> BeginAsync()
|
||||
{
|
||||
return new AsyncReply<bool>(Begin());
|
||||
}
|
||||
|
||||
|
||||
private AsyncReply<bool> currentReply = null;
|
||||
|
||||
public bool Begin()
|
||||
{
|
||||
if (began)
|
||||
return false;
|
||||
|
||||
began = true;
|
||||
/*
|
||||
|
||||
socketArgs.SetBuffer(receiveBuffer, 0, receiveBuffer.Length);
|
||||
socketArgs.Completed += SocketArgs_Completed;
|
||||
|
||||
if (!sock.ReceiveAsync(socketArgs))
|
||||
SocketArgs_Completed(null, socketArgs);
|
||||
*/
|
||||
receiveCallback = new AsyncCallback(ReceiveCallback);
|
||||
sendCallback = new AsyncCallback(SendCallback);
|
||||
|
||||
sock.BeginReceive(receiveBuffer, 0, receiveBuffer.Length, SocketFlags.None, receiveCallback, this);
|
||||
//sock.ReceiveAsync(receiveBufferSegment, SocketFlags.None).ContinueWith(DataReceived);
|
||||
return true;
|
||||
}
|
||||
|
||||
private static void ReceiveCallback(IAsyncResult ar)
|
||||
{
|
||||
var socket = ar.AsyncState as TCPSocket;
|
||||
|
||||
try
|
||||
{
|
||||
|
||||
if (socket.state != SocketState.Established)
|
||||
return;
|
||||
|
||||
var recCount = socket.sock.EndReceive(ar);
|
||||
|
||||
if (recCount > 0)
|
||||
{
|
||||
socket.receiveNetworkBuffer.Write(socket.receiveBuffer, 0, (uint)recCount);
|
||||
socket.Receiver?.NetworkReceive(socket, socket.receiveNetworkBuffer);
|
||||
|
||||
if (socket.state == SocketState.Established)
|
||||
socket.sock.BeginReceive(socket.receiveBuffer, 0, socket.receiveBuffer.Length, SocketFlags.None, socket.receiveCallback, socket);
|
||||
}
|
||||
else
|
||||
{
|
||||
socket.Close();
|
||||
return;
|
||||
}
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
if (socket.state != SocketState.Closed && !socket.sock.Connected)
|
||||
{
|
||||
//socket.state = SocketState.Terminated;
|
||||
socket.Close();
|
||||
}
|
||||
|
||||
//Global.Log("TCPSocket", LogType.Error, ex.ToString());
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
public AsyncReply<bool> Connect(string hostname, ushort port)
|
||||
{
|
||||
var rt = new AsyncReply<bool>();
|
||||
|
||||
try
|
||||
{
|
||||
state = SocketState.Connecting;
|
||||
sock.ConnectAsync(hostname, port).ContinueWith((x) =>
|
||||
{
|
||||
|
||||
if (x.IsFaulted)
|
||||
rt.TriggerError(x.Exception);
|
||||
else
|
||||
{
|
||||
|
||||
state = SocketState.Established;
|
||||
//OnConnect?.Invoke();
|
||||
Receiver?.NetworkConnect(this);
|
||||
Begin();
|
||||
rt.Trigger(true);
|
||||
}
|
||||
});
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
rt.TriggerError(ex);
|
||||
}
|
||||
|
||||
return rt;
|
||||
}
|
||||
|
||||
|
||||
//private void DataReceived(Task<int> task)
|
||||
//{
|
||||
// try
|
||||
// {
|
||||
// // SocketError err;
|
||||
|
||||
// if (state == SocketState.Closed || state == SocketState.Terminated)
|
||||
// return;
|
||||
|
||||
// if (task.Result <= 0)
|
||||
// {
|
||||
// Close();
|
||||
// return;
|
||||
// }
|
||||
|
||||
// receiveNetworkBuffer.Write(receiveBuffer, 0, (uint)task.Result);
|
||||
// //OnReceive?.Invoke(receiveNetworkBuffer);
|
||||
// Receiver?.NetworkReceive(this, receiveNetworkBuffer);
|
||||
// if (state == SocketState.Established)
|
||||
// sock.ReceiveAsync(receiveBufferSegment, SocketFlags.None).ContinueWith(DataReceived);
|
||||
|
||||
// }
|
||||
// catch (Exception ex)
|
||||
// {
|
||||
// if (state != SocketState.Closed && !sock.Connected)
|
||||
// {
|
||||
// state = SocketState.Terminated;
|
||||
// Close();
|
||||
// }
|
||||
|
||||
// Global.Log("TCPSocket", LogType.Error, ex.ToString());
|
||||
// }
|
||||
//}
|
||||
|
||||
//private void SocketArgs_Completed(object sender, SocketAsyncEventArgs e)
|
||||
//{
|
||||
// try
|
||||
// {
|
||||
// if (state != SocketState.Established)
|
||||
// return;
|
||||
|
||||
// if (e.BytesTransferred <= 0)
|
||||
// {
|
||||
// Close();
|
||||
// return;
|
||||
// }
|
||||
// else if (e.SocketError != SocketError.Success)
|
||||
// {
|
||||
// Close();
|
||||
// return;
|
||||
|
||||
// }
|
||||
|
||||
// var recCount = e.BytesTransferred > e.Count ? e.Count : e.BytesTransferred;
|
||||
// receiveNetworkBuffer.Write(receiveBuffer, 0, (uint)recCount);
|
||||
|
||||
// //OnReceive?.Invoke(receiveNetworkBuffer);
|
||||
// Receiver?.NetworkReceive(this, receiveNetworkBuffer);
|
||||
|
||||
// if (state == SocketState.Established)
|
||||
// while (!sock.ReceiveAsync(e))
|
||||
// {
|
||||
// if (e.SocketError != SocketError.Success)
|
||||
// {
|
||||
// Close();
|
||||
// return;
|
||||
// }
|
||||
|
||||
// if (State != SocketState.Established)
|
||||
// return;
|
||||
|
||||
// //if (e.BytesTransferred < 0)
|
||||
// // Console.WriteLine("BytesTransferred is less than zero");
|
||||
|
||||
// if (e.BytesTransferred <= 0)
|
||||
// {
|
||||
// Close();
|
||||
// return;
|
||||
// }
|
||||
// else if (e.SocketError != SocketError.Success)
|
||||
// {
|
||||
// Close();
|
||||
// return;
|
||||
// }
|
||||
|
||||
|
||||
// //if (e.BytesTransferred > 100000)
|
||||
// // Console.WriteLine("BytesTransferred is large " + e.BytesTransferred);
|
||||
|
||||
// recCount = e.BytesTransferred > e.Count ? e.Count : e.BytesTransferred;
|
||||
|
||||
// receiveNetworkBuffer.Write(receiveBuffer, 0, (uint)recCount);
|
||||
|
||||
// //OnReceive?.Invoke(receiveNetworkBuffer);
|
||||
// Receiver?.NetworkReceive(this, receiveNetworkBuffer);
|
||||
// }
|
||||
|
||||
// }
|
||||
// catch (Exception ex)
|
||||
// {
|
||||
// if (state != SocketState.Closed && !sock.Connected)
|
||||
// {
|
||||
// state = SocketState.Terminated;
|
||||
// Close();
|
||||
// }
|
||||
|
||||
// Global.Log("TCPSocket", LogType.Error, ex.ToString());
|
||||
// }
|
||||
//}
|
||||
|
||||
public IPEndPoint LocalEndPoint
|
||||
{
|
||||
get { return (IPEndPoint)sock.LocalEndPoint; }
|
||||
}
|
||||
|
||||
public TCPSocket()
|
||||
{
|
||||
sock = new Socket(AddressFamily.InterNetwork,
|
||||
SocketType.Stream,
|
||||
ProtocolType.Tcp);
|
||||
receiveBuffer = new byte[sock.ReceiveBufferSize];
|
||||
//receiveBufferSegment = new ArraySegment<byte>(receiveBuffer);
|
||||
|
||||
}
|
||||
|
||||
public TCPSocket(string hostname, ushort port)
|
||||
{
|
||||
// create the socket
|
||||
sock = new Socket(AddressFamily.InterNetwork,
|
||||
SocketType.Stream,
|
||||
ProtocolType.Tcp);
|
||||
|
||||
receiveBuffer = new byte[sock.ReceiveBufferSize];
|
||||
//receiveBufferSegment = new ArraySegment<byte>(receiveBuffer);
|
||||
|
||||
Connect(hostname, port);
|
||||
|
||||
}
|
||||
|
||||
//private void DataSent(Task<int> task)
|
||||
//{
|
||||
// try
|
||||
// {
|
||||
// lock (sendLock)
|
||||
// {
|
||||
|
||||
// if (sendBufferQueue.Count > 0)
|
||||
// {
|
||||
// byte[] data = sendBufferQueue.Dequeue();
|
||||
// //Console.WriteLine(Encoding.UTF8.GetString(data));
|
||||
// sock.SendAsync(new ArraySegment<byte>(data), SocketFlags.None).ContinueWith(DataSent);
|
||||
// }
|
||||
|
||||
// else
|
||||
// {
|
||||
// asyncSending = false;
|
||||
// }
|
||||
// }
|
||||
// }
|
||||
// catch (Exception ex)
|
||||
// {
|
||||
// if (state != SocketState.Closed && !sock.Connected)
|
||||
// {
|
||||
// state = SocketState.Terminated;
|
||||
// Close();
|
||||
// }
|
||||
|
||||
// asyncSending = false;
|
||||
|
||||
// Global.Log("TCPSocket", LogType.Error, ex.ToString());
|
||||
// }
|
||||
//}
|
||||
|
||||
public TCPSocket(IPEndPoint localEndPoint)
|
||||
{
|
||||
// create the socket
|
||||
sock = new Socket(AddressFamily.InterNetwork,
|
||||
SocketType.Stream,
|
||||
ProtocolType.Tcp);
|
||||
|
||||
receiveBuffer = new byte[sock.ReceiveBufferSize];
|
||||
|
||||
state = SocketState.Listening;
|
||||
|
||||
|
||||
// bind
|
||||
sock.Bind(localEndPoint);
|
||||
|
||||
// start listening
|
||||
sock.Listen(UInt16.MaxValue);
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
public IPEndPoint RemoteEndPoint
|
||||
{
|
||||
get { return (IPEndPoint)sock.RemoteEndPoint; }
|
||||
}
|
||||
|
||||
public SocketState State
|
||||
{
|
||||
get
|
||||
{
|
||||
return state;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
public TCPSocket(Socket socket)
|
||||
{
|
||||
sock = socket;
|
||||
receiveBuffer = new byte[sock.ReceiveBufferSize];
|
||||
// receiveBufferSegment = new ArraySegment<byte>(receiveBuffer);
|
||||
if (socket.Connected)
|
||||
state = SocketState.Established;
|
||||
}
|
||||
|
||||
public void Close()
|
||||
{
|
||||
if (state != SocketState.Closed)// && state != SocketState.Terminated)
|
||||
{
|
||||
state = SocketState.Closed;
|
||||
|
||||
if (sock.Connected)
|
||||
{
|
||||
try
|
||||
{
|
||||
sock.Shutdown(SocketShutdown.Both);
|
||||
}
|
||||
catch
|
||||
{
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
sendBufferQueue?.Clear();
|
||||
Receiver?.NetworkClose(this);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
Global.Log(ex);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public void Send(byte[] message)
|
||||
{
|
||||
Send(message, 0, message.Length);
|
||||
}
|
||||
|
||||
public void Send(byte[] message, int offset, int size)
|
||||
{
|
||||
if (state == SocketState.Closed)// || state == SocketState.Terminated)
|
||||
return;
|
||||
|
||||
var msg = message.Clip((uint)offset, (uint)size);
|
||||
|
||||
lock (sendLock)
|
||||
{
|
||||
|
||||
if (state == SocketState.Closed)// || state == SocketState.Terminated)
|
||||
return;
|
||||
|
||||
if (!sock.Connected)
|
||||
return;
|
||||
|
||||
if (asyncSending || held)
|
||||
{
|
||||
sendBufferQueue.Enqueue(new KeyValuePair<AsyncReply<bool>, byte[]>(null, msg));// message.Clip((uint)offset, (uint)size));
|
||||
}
|
||||
else
|
||||
{
|
||||
asyncSending = true;
|
||||
try
|
||||
{
|
||||
sock.BeginSend(msg, 0, msg.Length, SocketFlags.None, sendCallback, this);
|
||||
}
|
||||
catch
|
||||
{
|
||||
asyncSending = false;
|
||||
//state = SocketState.Closed;//.Terminated;
|
||||
Close();
|
||||
}
|
||||
//sock.SendAsync(new ArraySegment<byte>(msg), SocketFlags.None).ContinueWith(DataSent);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
private static void Flush(TCPSocket socket)
|
||||
{
|
||||
lock (socket.sendLock)
|
||||
{
|
||||
|
||||
socket.currentReply?.Trigger(true);
|
||||
socket.currentReply = null;
|
||||
|
||||
if (socket.state == SocketState.Closed) //|| socket.state == SocketState.Terminated)
|
||||
return;
|
||||
|
||||
if (socket.sendBufferQueue.Count > 0)
|
||||
{
|
||||
var kv = socket.sendBufferQueue.Dequeue();
|
||||
|
||||
try
|
||||
{
|
||||
socket.currentReply = kv.Key;
|
||||
socket.sock.BeginSend(kv.Value, 0, kv.Value.Length, SocketFlags.None,
|
||||
socket.sendCallback, socket);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
socket.asyncSending = false;
|
||||
|
||||
try
|
||||
{
|
||||
kv.Key?.Trigger(false);
|
||||
|
||||
if (socket.state != SocketState.Closed && !socket.sock.Connected)
|
||||
{
|
||||
// socket.state = SocketState.Closed;// Terminated;
|
||||
socket.Close();
|
||||
}
|
||||
}
|
||||
catch (Exception ex2)
|
||||
{
|
||||
socket.Close();
|
||||
//socket.state = SocketState.Closed;// .Terminated;
|
||||
}
|
||||
|
||||
Global.Log("TCPSocket", LogType.Error, ex.ToString());
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
socket.asyncSending = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private static void SendCallback(IAsyncResult ar)
|
||||
{
|
||||
|
||||
try
|
||||
{
|
||||
var socket = (TCPSocket)ar.AsyncState;
|
||||
|
||||
socket.sock?.EndSend(ar);
|
||||
Flush(socket);
|
||||
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
Global.Log(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public bool Trigger(ResourceTrigger trigger)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
public void Destroy()
|
||||
{
|
||||
Global.Counters["Sck_D_1"]++;
|
||||
|
||||
Close();
|
||||
|
||||
receiveNetworkBuffer = null;
|
||||
receiveCallback = null;
|
||||
sendCallback = null;
|
||||
sock = null;
|
||||
receiveBuffer = null;
|
||||
receiveNetworkBuffer = null;
|
||||
sendBufferQueue = null;
|
||||
|
||||
//socketArgs.Completed -= SocketArgs_Completed;
|
||||
//socketArgs.Dispose();
|
||||
//socketArgs = null;
|
||||
OnDestroy?.Invoke(this);
|
||||
OnDestroy = null;
|
||||
|
||||
Global.Counters["Sck_D_2"]++;
|
||||
}
|
||||
|
||||
public ISocket Accept()
|
||||
{
|
||||
try
|
||||
{
|
||||
var s = sock.Accept();
|
||||
return new TCPSocket(s);
|
||||
}
|
||||
catch
|
||||
{
|
||||
state = SocketState.Closed;// Terminated;
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
public async AsyncReply<ISocket> AcceptAsync()
|
||||
{
|
||||
try
|
||||
{
|
||||
var s = await sock.AcceptAsync();
|
||||
return new TCPSocket(s);
|
||||
}
|
||||
catch
|
||||
{
|
||||
state = SocketState.Closed;// Terminated;
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
public void Hold()
|
||||
{
|
||||
held = true;
|
||||
}
|
||||
|
||||
public void Unhold()
|
||||
{
|
||||
try
|
||||
{
|
||||
Flush(this);
|
||||
//SendCallback(null);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
Console.WriteLine(ex);
|
||||
}
|
||||
finally
|
||||
{
|
||||
held = false;
|
||||
}
|
||||
}
|
||||
|
||||
public AsyncReply<bool> SendAsync(byte[] message, int offset, int length)
|
||||
{
|
||||
|
||||
if (state == SocketState.Closed)// || state == SocketState.Terminated)
|
||||
return new AsyncReply<bool>(false);
|
||||
|
||||
var msg = message.Clip((uint)offset, (uint)length);
|
||||
|
||||
lock (sendLock)
|
||||
{
|
||||
if (state == SocketState.Closed)// || state == SocketState.Terminated)
|
||||
return new AsyncReply<bool>(false);
|
||||
|
||||
if (!sock.Connected)
|
||||
return new AsyncReply<bool>(false);
|
||||
|
||||
var rt = new AsyncReply<bool>();
|
||||
|
||||
if (asyncSending || held)
|
||||
{
|
||||
sendBufferQueue.Enqueue(new KeyValuePair<AsyncReply<bool>, byte[]>(rt, msg));
|
||||
}
|
||||
else
|
||||
{
|
||||
asyncSending = true;
|
||||
try
|
||||
{
|
||||
currentReply = rt;
|
||||
sock.BeginSend(msg, 0, msg.Length, SocketFlags.None, sendCallback, this);// null);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
rt.TriggerError(ex);
|
||||
asyncSending = false;
|
||||
//state = SocketState.Terminated;
|
||||
Close();
|
||||
}
|
||||
//sock.SendAsync(new ArraySegment<byte>(msg), SocketFlags.None).ContinueWith(DataSent);
|
||||
}
|
||||
|
||||
return rt;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user