You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
353 lines
9.9 KiB
353 lines
9.9 KiB
using Apewer;
|
|
using Apewer.Internals;
|
|
using System;
|
|
using System.Collections;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Net;
|
|
using System.Net.Sockets;
|
|
using System.Text;
|
|
using System.Threading;
|
|
|
|
namespace Apewer.Network
|
|
{
|
|
|
|
/// <summary>TCP 客户端。</summary>
|
|
public class TcpClient
|
|
{
|
|
|
|
#region event
|
|
|
|
/// <summary>Exception。</summary>
|
|
public Event<Exception> Excepted { get; set; }
|
|
|
|
/// <summary>已发送数据。</summary>
|
|
public Event<byte[]> Sent { get; set; }
|
|
|
|
/// <summary>已接收数据。</summary>
|
|
public Event<byte[]> Received { get; set; }
|
|
|
|
/// <summary>已连接。</summary>
|
|
public Event Connected { get; set; }
|
|
|
|
/// <summary>已断开。</summary>
|
|
public Event Closed { get; set; }
|
|
|
|
#endregion
|
|
|
|
#region definition
|
|
|
|
private Thread _listener = null;
|
|
private Thread _provider = null;
|
|
private Socket _socket = null;
|
|
private Queue<byte[]> _queue = null;
|
|
|
|
// private AutoResetEvent _are = null;
|
|
|
|
private bool _break = false;
|
|
private int _timeout = 0;
|
|
|
|
private string _localip, _remoteip;
|
|
private int _localport = 0, _remoteport = 0;
|
|
|
|
private bool _background = true;
|
|
|
|
/// <summary></summary>
|
|
internal object Tag { get; set; }
|
|
|
|
/// <summary>构造函数。</summary>
|
|
public TcpClient()
|
|
{
|
|
RemoteIP = "127.0.0.1";
|
|
RemotePort = 0;
|
|
}
|
|
|
|
/// <summary>构造函数。</summary>
|
|
public TcpClient(string ip, int port, int timeout = 0)
|
|
{
|
|
RemoteIP = ip;
|
|
RemotePort = port;
|
|
Timeout = timeout;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region accessor
|
|
|
|
/// <summary>获取或设置监听线程是否为后台线程,默认为“是”。</summary>
|
|
public bool Background
|
|
{
|
|
get { return _background; }
|
|
set
|
|
{
|
|
_background = value;
|
|
try { if (_listener != null) _listener.IsBackground = value; }
|
|
catch (Exception ex) { Excepted?.Invoke(this, ex); }
|
|
}
|
|
}
|
|
|
|
/// <summary>获取或设置远程计算机的 IP 地址。</summary>
|
|
public string RemoteIP
|
|
{
|
|
get { return _remoteip; }
|
|
set
|
|
{
|
|
string ip = value;
|
|
if (!NetworkUtility.IsIP(ip)) ip = NetworkUtility.Resolve(ip);
|
|
if (!NetworkUtility.IsIP(ip)) ip = "127.0.0.1";
|
|
_remoteip = ip;
|
|
}
|
|
}
|
|
|
|
/// <summary>获取或设置远程计算机的 TCP 端口号。</summary>
|
|
public int RemotePort
|
|
{
|
|
get { return _remoteport; }
|
|
set
|
|
{
|
|
int port = value;
|
|
if (port < 0) port = 0;
|
|
if (port > 65535) port = 65535;
|
|
_remoteport = port;
|
|
}
|
|
}
|
|
|
|
/// <summary>获取或设置本地计算机的 IP 地址。</summary>
|
|
public string LocalIP
|
|
{
|
|
get { return _localip; }
|
|
private set { _localip = string.IsNullOrEmpty(value) ? "" : value; }
|
|
}
|
|
|
|
/// <summary>获取或设置本地计算机的 TCP 端口号。</summary>
|
|
public int LocalPort
|
|
{
|
|
get { return _localport; }
|
|
private set
|
|
{
|
|
int port = value;
|
|
if (port < 0) port = 0;
|
|
if (port > 65535) port = 65535;
|
|
_localport = port;
|
|
}
|
|
}
|
|
|
|
/// <summary>获取或设置超时时间。</summary>
|
|
public int Timeout
|
|
{
|
|
get { return _timeout; }
|
|
set { _timeout = (value > 0) ? value : 0; }
|
|
}
|
|
|
|
/// <summary>开始连接,并初始化发送队列。</summary>
|
|
public void Start(bool inBackground = false)
|
|
{
|
|
Close(false);
|
|
_queue = new Queue<byte[]>();
|
|
|
|
if (!inBackground)
|
|
{
|
|
_provider = new Thread(Provider);
|
|
_provider.IsBackground = true;
|
|
_provider.Start();
|
|
return;
|
|
}
|
|
|
|
Provider();
|
|
// _are.WaitOne(1000);
|
|
}
|
|
|
|
/// <summary>断开连接。</summary>
|
|
/// <param name="event">是否引导 Closed 事件。</param>
|
|
public void Close(bool @event = true)
|
|
{
|
|
CloseThread(ref _provider);
|
|
CloseThread(ref _listener);
|
|
CloseSocket();
|
|
CloseQueue();
|
|
_queue = null;
|
|
// _are = null;
|
|
if (@event) Closed?.Invoke(this);
|
|
}
|
|
|
|
/// <summary>向服务端发送数据。</summary>
|
|
/// <param name="bytes">字节数组。</param>
|
|
public bool Send(byte[] bytes)
|
|
{
|
|
if (_socket != null)
|
|
{
|
|
_queue.Enqueue(bytes);
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
var ex = new SocketException(10057);
|
|
Excepted?.Invoke(this, ex);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/// <summary>是否已连接。</summary>
|
|
public bool Online
|
|
{
|
|
get
|
|
{
|
|
try { if (_socket != null) return _socket.Connected; }
|
|
catch (Exception ex) { Excepted?.Invoke(this, ex); }
|
|
return false;
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region logic
|
|
|
|
private void Listener()
|
|
{
|
|
var buffer = new byte[TcpBuffer.Size];
|
|
var length = 0;
|
|
while (true)
|
|
{
|
|
try
|
|
{
|
|
if (_socket.Poll(50, SelectMode.SelectWrite))
|
|
{
|
|
_socket.Blocking = true;
|
|
length = _socket.Receive(buffer);
|
|
if (length > 0)
|
|
{
|
|
var bytes = new byte[length];
|
|
Array.Copy(buffer, bytes, length);
|
|
Received?.Invoke(this, bytes);
|
|
}
|
|
else
|
|
{
|
|
if (_socket != null) break;
|
|
}
|
|
}
|
|
}
|
|
catch (SocketException ex)
|
|
{
|
|
if (ex.ErrorCode != 10060) Excepted?.Invoke(this, ex);
|
|
if (ex.ErrorCode == 10054) break;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Excepted?.Invoke(this, ex);
|
|
// break;
|
|
}
|
|
}
|
|
if (_provider != null)
|
|
{
|
|
if (_provider.IsAlive) _provider.Abort();
|
|
_provider = null;
|
|
}
|
|
if (_socket != null)
|
|
{
|
|
_socket.Disconnect(true);
|
|
_socket.Close();
|
|
_socket = null;
|
|
}
|
|
CloseThread(ref _provider);
|
|
CloseSocket();
|
|
CloseQueue();
|
|
Closed?.Invoke(this);
|
|
}
|
|
|
|
private void Provider()
|
|
{
|
|
_break = false;
|
|
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
|
|
if (_timeout > 0) _socket.SendTimeout = _timeout;
|
|
if (_timeout > 0) _socket.ReceiveTimeout = _timeout;
|
|
//_are = new AutoResetEvent(false);
|
|
|
|
try
|
|
{
|
|
_socket.Blocking = true;
|
|
_socket.Connect(_remoteip, _remoteport);
|
|
if (_socket.Connected)
|
|
{
|
|
_socket.SendBufferSize = TcpBuffer.Size;
|
|
_socket.ReceiveBufferSize = TcpBuffer.Size;
|
|
var rep = (IPEndPoint)_socket.RemoteEndPoint;
|
|
var lep = (IPEndPoint)_socket.LocalEndPoint;
|
|
_remoteip = rep.Address.ToString();
|
|
_localip = lep.Address.ToString();
|
|
_localport = lep.Port;
|
|
|
|
Connected?.Invoke(this);
|
|
_listener = new Thread(Listener);
|
|
_listener.Start();
|
|
// _are.Set();
|
|
}
|
|
else
|
|
{
|
|
Close();
|
|
return;
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Excepted?.Invoke(this, ex);
|
|
}
|
|
|
|
while ((!_break) && (_socket != null))
|
|
{
|
|
|
|
if (_queue.Count > 0)
|
|
{
|
|
var bytes = _queue.Dequeue();
|
|
if (bytes.Length > 0)
|
|
{
|
|
try
|
|
{
|
|
_socket.Send(bytes);
|
|
Sent?.Invoke(this, bytes);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Excepted?.Invoke(this, ex);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Thread.Sleep(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private void CloseSocket()
|
|
{
|
|
if (_socket != null)
|
|
{
|
|
try
|
|
{
|
|
_socket.Disconnect(false);
|
|
_socket.Close();
|
|
}
|
|
catch (SocketException ex) { Excepted?.Invoke(this, ex); }
|
|
catch (Exception ex) { Excepted?.Invoke(this, ex); }
|
|
_socket = null;
|
|
}
|
|
}
|
|
|
|
private void CloseThread(ref Thread thread)
|
|
{
|
|
if (thread != null)
|
|
{
|
|
if (thread.IsAlive) thread.Abort();
|
|
thread = null;
|
|
}
|
|
}
|
|
|
|
private void CloseQueue()
|
|
{
|
|
if (_queue != null) _queue.Clear();
|
|
}
|
|
|
|
#endregion
|
|
|
|
}
|
|
}
|
|
|