recv() issues

[ForeverCode]

I'm having a problem recieving data...
Whenever my code goes into a loop to get the data it stops on recv() and waits for more data once all the data has been read. I dont want this to happen. Is there any way to fix the following code so that once all the data has been written the loop exits and i can handle the data?

CString Data;
while(bRead = recv(Sck, Buff, 8192, 0) != 0){

if(bRead < 0) break;

Data += CString(Buff, bRead); //append
Sleep(100);
}

 

[awingnut]

If I understand what you are asking, you want a non-blocking socket. Use the following when you create the socket:

unsigned long FIONBIOparm=1;
int ret;

ret=ioctlsocket(sck,FIONBIO,&FIONBIOparm);

You then need to put the recv() into a loop. If there is no data yet it will return with SOCKET_ERROR. Test WSAGetLastError for WSAEWOULDBLOCK. This is the normal return when there is no data to read.

 

[ForeverCode]

Cool, thanx. It works great.

-Micah

 

[awingnut]

My pleasure. I have gotten so much out of this forum, it is nice to give a little something back. Socket programming is the one thing I am comfortable with.