Paul Smith wrote:
Hi all; It doesn't seem that autoconf has any macros that provide for sub-second timers. Is there any agreed-upon standard for managing this? Is setitimer() the most portable option for sub-second timestamps? Are there known portability issues with it? Should I check for usleep() if setitimer doesn't exist? What about nanosleep()? I expect many systems would need to realtime library (-lrt) linked to use nanosleep()? Or not?
The tried-and-true method for the past 20-some years has been select() with no descriptor sets...
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