Let's take a look at this situation, do not call OnReceive

detroit

The client derives its own class from CAsyncSocket and overrides the OnReceive function. The server will send out a disconnection detection packet at regular intervals. The client discards the packet. But when the client needs to wait for the server to return data, I use WaitForSingleObject to wait for the event. This event sets a signal state after receiving data in this class. The problem is that it seems that data cannot be received after using WaitForSingleObject (do not call OnReceive). As a result, the program cannot correctly get the data sent by the server. Is there any way to solve it?

爱德华德

1. The client connects to the server successfully?
2. The server sends data successfully?

detroit

All succeeded, but once the wait event is called, the result data itself cannot be received. The event is set to have a signal after the data is received, the result is blocked

爱德华德

WaitFor... are you calling there?

detroit

In a member function of the connection class, OnReceive is also there. Isn't that OK?