check whether fgets would block
- by lv
Hi,
I was just wondering whether in C is it possible to peek in the input buffer or perform similar trickery to know whether a call to fgets would block at a later time.
Java allows to do something like that by calling BufferedReader.ready(), this way I can implement console input something like this:
while (on && in.ready()) {
line = in.readLine();
/* do something with line */
if (!in.ready())
Thread.sleep(100);
}
this allows an external thread to gracefully shutdown the input loop by setting on to false; I'd like to perform a similar implementation in C without resorting to non portable tricks, I already know I can make a "timed out fgets" under unix by resorting to signals or (better, even though requering to take care of buffering) reimplement it on top of recv/select, but I'd prefer something that would work on windows too.
TIA
