/// <summary>
/// 接收数据
/// </summary>
/// <param name="client"></param>
private void Receive(Socket client)
{
try
{
// Create the state object.
socketReceiveObject = new TcpReceiveObject();
socketReceiveObject.workSocket = client;
// Begin receiving the data from the remote device.
client.BeginReceive(socketReceiveObject.buffer, 0, TcpReceiveObject.BufferSize, 0,
new AsyncCallback(ReceiveCallback), socketReceiveObject);
}
catch (Exception ex)
{
_log.WriteLog("Receive error", ex);
}
}
/// <summary>
/// 接收回调
/// </summary>
/// <param name="AsynRes"></param>
private void ReceiveCallback(IAsyncResult AsynRes)
{
try
{
// Retrieve the state object and the client socket
// from the asynchronous state object.
TcpReceiveObject state = (TcpReceiveObject)AsynRes.AsyncState;
Socket client = state.workSocket;
// Read data from the remote device.
int bytesRead = client.EndReceive(AsynRes);
if (bytesRead > 0)
{
// There might be more data, so store the data received so far.
state.ReceiveInfo.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));
if (socketCfg.MultiplyReceiveMode)//只是返回了一部分数据，需要再继续等待对方发送其他数据
{
// Get the rest of the data.
client.BeginReceive(state.buffer, 0, TcpReceiveObject.BufferSize, 0,
new AsyncCallback(ReceiveCallback), state);
}
}
if (bytesRead == 0 || socketCfg.MultiplyReceiveMode == false)//数据接收完成，或者数据已经一次性接收完毕
{
// All the data has arrived; put it in response.
if (state.ReceiveInfo.Length > 1)
{
Raise_MessageReceivedEvent(client, state.ReceiveInfo.ToString());
}
// Signal that all bytes have been received.
receiveDone.Set();
}
}
catch (Exception ex)
{
_log.WriteLog("ReceiveCallback error", ex);
}
}