/// <summary>
/// 移除客户端并关闭连接
/// </summary>
/// <param name="clientID">客户端ID</param>
/// <exception cref="断开连接的Socket异常"></exception>
private void DropClient(string clientID)
{
if (clientList.ContainsKey(clientID))
{
var client = clientList[clientID];
//从客户端列表中移除
clientLocker.EnterWriteLock();
try
{
clientList.Remove(clientID);
}
finally
{
clientLocker.ExitWriteLock();
}
//减少计数器
Interlocked.Decrement(ref currentConnectedNumber);
if (client.IsClientAdd)
{
//通知客户端移除
SendNotifyData(false, client.PlayerName);
}
//断开连接
try
{
client.ClientSocket.Shutdown(SocketShutdown.Both);
}
catch (Exception ex)
{
ErrorLogger.LogException(ex);
//throw new Exception("断开客户端：" + clientID + " 时出现问题，详细请查看错误日志");
}
client.ClientSocket.Close();
//释放资源
//设置为空以避免在回调函数ProcessReceives当中执行
client.revcEventArg.UserToken = null;
argsPool.Push(client.revcEventArg);
argsPool.Push(client.sendEventArg);
//这个很关键，要不服务器满员了之后，就不会接受连接了
semaphoreAcceptedClients.Release();
client = null;
}
}
private void initServer()
{
var accept = maxConnection + 1;
//建立缓存池，包括读写，缓存池的大小为最大连接数×数据包大小×2（2表示读写两个）
bufferManager = new BufferPool(accept * bufferSize * opsToPreAlloc, bufferSize);
//同样建立读写参数池
argsPool = new SocketArgsPool(accept * opsToPreAlloc);
//根据最大连接数建立Semaphore
semaphoreAcceptedClients = new Semaphore(accept, accept);
//预分配数据发送接收参数
SocketAsyncEventArgs rsArgs;
for (var i = 0; i < accept * opsToPreAlloc; i++)
{
rsArgs = new SocketAsyncEventArgs();
rsArgs.Completed += IOCompleted;
bufferManager.SetBuffer(rsArgs);
argsPool.Push(rsArgs);
}
//接受连接参数
AcceptArg = new SocketAsyncEventArgs();
AcceptArg.Completed += SocketAccepted;
}