How do you make a socket non-blocking?
I am aware of the
What do you mean by "not always reliable"? If the system succeeds in setting your socket non non-blocking, it will be non-blocking. Socket operations will return
EWOULDBLOCK if they would block need to block (e.g. if the output buffer is full and you're calling send/write too often).
This forum thread has a few good points when working with non-blocking calls.