Re: [Mingw-users] nanosleep() API

[James S. <jam...@op...>]

On Wed, 2007-04-18 at 12:02 +1000, Howard Bryden wrote:
<snip>

I appear to have a slightly newer _mingw.h at 3.9 and w32api.h at 3.6,
but apart from that...

> Behaviour:              For intervals less than 500000 (i.e. 0.0005s)
> nanosleep() terminates, but at 500000 and greater it definitely hangs.
> 
> Test Case:              The following code demonstrates the problem:
> 
> #include <stdio.h> 
> #include <time.h> 
> #include <sys/time.h>
> 
> int main(int argc, char *argv[]) { 
>         struct timespec ts1, ts2; 
>         int code;
> 
>         ts1.tv_sec  = 0; 
>         ts1.tv_nsec = atol(argv[1]); 
>         ts2.tv_sec  = 0; 
>         ts2.tv_nsec = 0;
> 
>         printf( "Sleep for %d ns ... \n", ts1.tv_nsec ); 
>         code = nanosleep(&ts1, &ts2); 
>         printf( "Terminated\n" ); 
> }

I can't even compile this.  I get the feeling that struct timespec is
not definied in any headers on my system.  Where is it defined in yours?

I do see a struct timeval, but that is only for usecs, not nsecs.

If I change to timeval and nsec to usec, I get a linker error trying to
find nanosleep.

Also, Sleep(msec) seems to be the only sleep function around.  Is there
any Microsnot sleep function with greater precision than milliseconds?

Regards,
James.