/// <summary>
///
/// </summary>
/// <param name="id">唯一ID</param>
/// <param name="receiveBuffer">接收缓冲区</param>
/// <param name="sendBuffer">发送缓冲区</param>
/// <param name="socket">连接的Socket</param>
/// <param name="process"></param>
public UserSession(int id, BytesSegment receiveBuffer, BytesSegment sendBuffer, Socket socket, IBufferProcessor process)
: base(id, receiveBuffer, sendBuffer, process)
{
m_socket = socket;
m_address = ((System.Net.IPEndPoint)(socket.RemoteEndPoint)).Address;
Created = DateTime.UtcNow;
}
public ISession CreateSession(Socket socket)
{
var receivebuffer = new Sinan.Collections.BytesSegment(new byte[m_receiveBufferSize]);
var sendbuffer = new Sinan.Collections.BytesSegment(new byte[m_sendBufferSize]);
// 初始化session数据
int id = System.Threading.Interlocked.Increment(ref m_id);
UserSession session = new UserSession(id, receivebuffer, sendbuffer, socket, m_process);
return session;
}
protected override void OnConnected(System.Net.Sockets.Socket e)
{
const int bufferSize = 65535;
BytesSegment receivebuffer = new BytesSegment(new byte[bufferSize], 0, bufferSize);
BytesSegment sendbuffer = new BytesSegment(new byte[bufferSize], 0, bufferSize);
GMProcessor2 processor = new GMProcessor2(bufferSize);
GMToken session = new GMToken(m_zoneid, receivebuffer, sendbuffer, e, processor);
//发送握手信息..
session.SendAsync(hand);
//开始接收数据
session.ReceiveAsync(null,0,0);
//发送登录信息
session.Call(LoginCommand.UserLogin, ConfigLoader.Config.Zoneid.ToString(), ConfigLoader.Config.ReportSIP);
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="maxClients">允许的最大连接数</param>
/// <param name="receiveBufferSize">每个连接接收数据缓存的大小</param>
/// <param name="sendBufferSize">每个连发送收数据缓存的大小</param>
/// <param name="sendQueueSize">等待发送数据的最大业务包</param>
public SessionFactory(int maxClients, int receiveBufferSize, int sendBufferSize, int sendQueueSize, IBufferProcessor commandReader)
{
m_receiveBufferSize = receiveBufferSize;
m_sendBufferSize = sendBufferSize;
m_bufferPool = new System.Collections.Concurrent.ConcurrentQueue<UserBuffer>();
m_receivebuffer = new byte[maxClients * receiveBufferSize];
m_sendbuffer = new byte[maxClients * sendBufferSize];
m_process = commandReader;
for (int i = 0; i < maxClients; i++)
{
var receivebuffer = new Sinan.Collections.BytesSegment(m_receivebuffer, m_receiveBufferSize * i, m_receiveBufferSize);
var sendbuffer = new Sinan.Collections.BytesSegment(m_sendbuffer, m_sendBufferSize * i, m_sendBufferSize);
UserBuffer helper = new UserBuffer(i, this, receivebuffer, sendbuffer, sendQueueSize);
m_bufferPool.Enqueue(helper);
}
}
void ProcessHandler(IAsyncResult iar)
{
try
{
StateObject state = iar.AsyncState as StateObject;
Socket client = state.workSocket;
try
{
SocketError error;
int len = client.EndReceive(iar, out error);
if (len > 0 && error == SocketError.Success)
{
//处理握手
Sinan.Collections.BytesSegment bin = new Sinan.Collections.BytesSegment(state.data, 0, len);
int offset = m_handshake.Execute(client, bin);
if (offset >= 0)
{
int count = len - offset;
if (count == 0)
{
//继续接收
client.BeginReceive(state.data, 0, state.data.Length, SocketFlags.None, ProcessHandler, state);
return;
}
else if (count > 0)
{
state.workSocket = null;
StartReceive(client, state.data, offset, count);
return;
}
}
}
}
catch { }
client.SafeClose();
}
catch { }
}
private void ReceiveAsync(int len)
{
Sinan.Collections.BytesSegment data = new Sinan.Collections.BytesSegment(m_receiver.Buffer, m_receiveOffset, len);
//读取命令
int remaining = m_processor.Execute(this, data);
if (m_socket == null || remaining < 0)
{
return;
}
if (remaining > 0 && remaining < m_receiveMax)
{
//根据剩余量计算新的偏移
m_remainOffset = m_receiveOffset + len - remaining;
m_remaining = remaining;
if (m_remainOffset > m_receiveOffset)
{
System.Buffer.BlockCopy(m_receiver.Buffer, m_remainOffset, m_receiver.Buffer, m_receiveOffset, m_remaining);
}
}
else
{
m_remaining = 0;
m_remainOffset = m_receiveOffset;
}
//因为缓存大小不变,只要偏移量相同,则数量肯定相同,偏移不同,则数量不同
int offset = m_remaining + m_receiveOffset;
if (offset != m_receiver.Offset)
{
m_receiver.SetBuffer(offset, m_receiveMax - m_remaining);
}
if (m_socket != null)
{
if (!m_socket.ReceiveAsync(m_receiver))
{
ProcessReceive();
}
}
}
/// <summary>
/// 向客户端发送数据(异步方式.)
/// </summary>
/// <param name="buffer"></param>
/// <returns></returns>
public SocketError SendAsync(Sinan.Collections.BytesSegment buffer)
{
try
{
if (buffer == null)
{
return SocketError.NoData;
}
// 尝试0变1,锁定Sender;
int state = Interlocked.CompareExchange(ref m_socketInUse, 1, 0);
if (state == 0)
{
if (m_curBuff == null && m_sendPool.IsEmpty)
{
m_curBuff = buffer;
}
else
{
m_sendPool.Enqueue(buffer);
}
SendData();
}
else if (state == 1)
{
m_sendPool.Enqueue(buffer);
}
else
{
return SocketError.NotConnected;
}
//记日志
#if FlowLog
FlowLog.AddOut(buffer.Array, buffer.Offset);
#endif
return SocketError.Success;
}
catch
{
if (m_socketInUse < 2)
{
Thread.VolatileWrite(ref m_socketInUse, 2);
}
return SocketError.NotConnected;
}
}
public virtual void Close()
{
if (m_socketInUse < 2)
{
Thread.VolatileWrite(ref m_socketInUse, 2);
}
Socket client = null;
lock (m_locker)
{
if (m_socket != null)
{
client = m_socket;
m_socket = null;
m_sendPool = null;
m_curBuff = null;
}
}
if (client != null)
{
m_written = 0;
client.SafeClose();
}
}
