Date: Wed, 15 Feb 2017 15:38:52 -0600 From: Eric van Gyzen <vangyzen@FreeBSD.org> To: "freebsd-arch@freebsd.org" <freebsd-arch@freebsd.org> Subject: sem_timedwait3(..., ..., clockid_t) Message-ID: <1d1cb3d6-a2d2-1a3e-5d20-51206524ffbe@FreeBSD.org>
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Would anyone else be interested in me adding a sem_timedwait3() function?
int sem_timedwait3(sem_t *sem, const struct timespec *abs_timeout,
clockid_t clock_id);
The clock_id would specify the reference clock for the absolute timeout.
The standard sem_timedwait() API uses CLOCK_REALTIME, which does not
play nicely with large clock adjustments.
I realize it would be non-standard. I also realize that there are
standard APIs that should probably be used instead, such as Pthread
condition variables with pthread_condattr_setclock(3). On the other
hand, the diff is [currently] tiny, so I thought I would offer it.
Cheers,
Eric
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