glibc/sysdeps/nacl/pthread_condattr_setclock.c

43 lines
1.4 KiB
C

/* Set the clock for timeouts on a condition variable. NaCl version.
Copyright (C) 2015-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include "pthreadP.h"
int
pthread_condattr_setclock (pthread_condattr_t *attr, clockid_t clock_id)
{
switch (clock_id)
{
case CLOCK_REALTIME:
/* This is the default state and the only one actually supported. */
return 0;
case CLOCK_MONOTONIC:
/* NaCl recognizes CLOCK_MONOTONIC for other purposes, so it is a
"known clock". But NaCl doesn't support it for this purpose. */
return ENOTSUP;
default:
/* The only other recognized clocks are CPU-time clocks,
which POSIX says should get EINVAL. */
return EINVAL;
}
}