internal Boolean SetBuffer(SocketAsyncEventArgs args)
{
try
{
if (_FreeIndexPool.Count > 0)
{
args.SetBuffer(_Buffer, _FreeIndexPool.Pop(), _BufferSize);
}
else
{
if ((_NumBytes - _BufferSize) < _CurrentIndex)
{
return(false);
}
args.SetBuffer(_Buffer, _CurrentIndex, _BufferSize);
_CurrentIndex += _BufferSize;
}
}
catch (Exception ex)
{
AsyncUserToken token = args.UserToken as AsyncUserToken;
log.AddLog(LogType.Error, $"在SetBuffer时出错!\r\n客户端地址:{token.IPAddress}\r\n错误信息:{ex.Message}");
}
return(true);
}
private void SocketManager_ReceiveClientData(AsyncUserToken token, byte[] buff)
{
var msg = String.Empty;
try
{
msg = Encoding.UTF8.GetString(buff);
var item = JsonConvert.DeserializeObject <JsonItem>(msg);
switch (item.State)
{
case "Add":
AddItem(token, item);
break;
case "Del":
DelItem(token, item);
break;
case "Que":
QueItem(token);
break;
default:
_SocketManager.SendMessage(token, new byte[] { 85, 110, 107, 110, 111, 119, 83, 116, 97, 116, 101 }); // UnknowState
log.AddLog(LogType.Info, $"用户{token.IPAddress}发送了错误的Json信息!");
break;
}
}
catch (Exception ex)
{
log.AddLog(LogType.Error, $"在执行解析内容时出错!\r\n发送用户:{token.IPAddress}\r\n发送内容:{msg}\r\n错误信息:{ex.Message}");
_SocketManager.SendMessage(token, new byte[] { 68, 101, 115, 101, 114, 105, 97, 108, 105, 122, 101, 74, 115, 111, 110, 69, 114, 114, 111, 114 }); // DeserializeJsonError
}
}
internal SocketManager(Int32 numConnections, Int32 receiveBufferSize, ref LogMain logMain)
{
log = logMain;
_ClientCount = 0; // 清理客户端连接数
_MaxConnectNum = numConnections; // 设置最大客户端连接数
_RevBufferSize = receiveBufferSize; // 设置缓冲区大小
try
{
_BufferManager = new BufferManager(receiveBufferSize * numConnections * opsToAlloc, receiveBufferSize, ref log); // 分配缓冲区,
// 使得最大数量套接字可以有一个未完成读写同时发送到Socket
_Pool = new SocketEventPool(numConnections); // 初始化套接字事件池
_MaxNumberAcceptedClients = new Semaphore(numConnections, numConnections); // 限制I/O大小范围
}
catch (Exception ex)
{
log.AddLog(LogType.Error, $"因用户操作不当,此Bug已影响程序正常运行!\r\n错误信息:{ex.Message}");
}
}
internal Boolean Start(IPEndPoint localEndPoint)
{
try
{
_Clients.Clear(); // 清空用户
_ListenSocket = new Socket(localEndPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp); // 初始化Socket新实例
_ListenSocket.Bind(localEndPoint); // 绑定终结点
_ListenSocket.Listen(_MaxConnectNum); // 设置最大客户端数量
StartAccept(null);
return(true);
}
catch (Exception ex)
{
log.AddLog(LogType.Error, $"监听端口时出错!\r\n错误信息:{ex.Message}");
return(false);
}
}