/// <summary>收到新连接时处理</summary>
/// <param name="client"></param>
protected virtual void OnAccept(Socket client)
{
var session = CreateSession(client);
// 设置心跳时间
client.SetTcpKeepAlive(true);
if (_Sessions.Add(session))
{
//session.ID = g_ID++;
// 会话改为原子操作，避免多线程冲突
session.ID = Interlocked.Increment(ref g_ID);
//WriteLog("{0}新会话 {1}", this, client.Client.RemoteEndPoint);
session.WriteLog("New {0}", session.Remote.EndPoint);
if (StatSession != null)
{
StatSession.Increment(1);
}
if (NewSession != null)
{
NewSession(this, new SessionEventArgs {
Session = session
});
}
// 自动开始异步接收处理
if (AutoReceiveAsync)
{
session.ReceiveAsync();
}
}
}
/// <summary>创建会话</summary>
/// <param name="remoteEP"></param>
/// <returns></returns>
public virtual ISocketSession CreateSession(IPEndPoint remoteEP)
{
if (Disposed)
{
throw new ObjectDisposedException(this.GetType().Name);
}
var sessions = _Sessions;
if (sessions == null)
{
return(null);
}
// 平均执行耗时260.80ns，其中55%花在sessions.Get上面，Get里面有加锁操作
if (!Active)
{
// 根据目标地址适配本地IPv4/IPv6
Local.Address = Local.Address.GetRightAny(remoteEP.AddressFamily);
if (!Open())
{
return(null);
}
}
// 需要查找已有会话，已有会话不存在时才创建新会话
var session = sessions.Get(remoteEP + "");
if (session == null)
{
var us = new UdpSession(this, remoteEP);
us.Log = Log;
us.LogSend = LogSend;
us.LogReceive = LogReceive;
// UDP不好分会话统计
//us.StatSend.Parent = StatSend;
//us.StatReceive.Parent = StatReceive;
session = us;
if (sessions.Add(session))
{
//us.ID = g_ID++;
// 会话改为原子操作，避免多线程冲突
us.ID = Interlocked.Increment(ref g_ID);
us.Start();
if (StatSession != null)
{
StatSession.Increment(1);
}
// 触发新会话事件
if (NewSession != null)
{
NewSession(this, new SessionEventArgs {
Session = session
});
}
}
}
return(session);
}
