On Tue, 11 Mar 2003, Felipe Alfaro Solana wrote:
>
> why not sleep(0)?
I think a much more likely (and correct) usage for big sleep values is
more something like this:
do_with_timeout(xxx, int timeout)
{
struct timespec ts;
... set up some async event ..
ts.tv_nsec = 0;
ts.tv_sec = timeout;
while (nanosleep(&ts, &ts)) {
if (async event happened)
return happy;
}
.. tear down the async event if it didn't happen ..
}
and here the natural thing to do in user space is to just make the "no
timeout" case be a huge value.
At which point it is a _bug_ in the kernel if we return early with some
random error code.
Linus
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