2013/11/9 dw <limegreenso...@yahoo.com>
> handle = CreateSemaphore(NULL, (LONG) value, (LONG) 1024, name);
>
>
> Why 1024? Is this the same as SEM_VALUE_MAX?
>
Probably not the same. I'm now changing it to SEM_VALUE_MAX.
>
> if (handle == NULL){
> LPTSTR buffer;
> errno = EINVAL;
> return (_sem_t *)SEM_FAILED;
> }
>
>
> What's the "buffer" for?
>
Missed that on cleanup. It was there for debugging purposes but now is
useless.
>
>
> static int _sem_timedwait(_sem_t *sem, const struct timespec
> *abs_timeout){
> long milliseconds = abs_timeout->tv_sec * 1000;
> milliseconds += (abs_timeout->tv_nsec/1000000);
> tubo_sem_timeout(sem, milliseconds);
> }
>
>
> This doesn't appear to match the man
> page<http://man7.org/linux/man-pages/man3/sem_wait.3.html>I read: "If the
> timeout has already expired by the time of the call"
> implies that an absolute time is being specified, not a duration. While I
> think your definition is more useful, this may result in unexpected
> behavior for others.
>
Right. An absolute time is better to keep things consistent. As soon as I
put in the code to support unnamed semaphores, I'll post the corrected code
to the list.
Thanks for your comments!
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Applied Mathematics and Computing
Mexican Petroleum Institute
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