diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/s390/sem_timedwait.c')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/s390/sem_timedwait.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/s390/sem_timedwait.c deleted file mode 100644 index b1c57beff9..0000000000 --- a/nptl/sysdeps/unix/sysv/linux/s390/sem_timedwait.c +++ /dev/null @@ -1,99 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003. - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <sysdep.h> -#include <lowlevellock.h> -#include <internaltypes.h> -#include <semaphore.h> - -#include <pthreadP.h> -#include <shlib-compat.h> - - -int -sem_timedwait (sem, abstime) - sem_t *sem; - const struct timespec *abstime; -{ - /* First check for cancellation. */ - CANCELLATION_P (THREAD_SELF); - - int *futex = (int *) sem; - int oldval; - int newval; - int err; - - do - { - /* Atomically decrement semaphore counter if it is > 0. */ - lll_compare_and_swap (futex, oldval, newval, - "ltr %2,%1; jnp 1f; ahi %2,-1"); - /* oldval != newval if the semaphore count has been decremented. */ - if (oldval != newval) - return 0; - - /* Check for invalid timeout values. */ - if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) - { - __set_errno (EINVAL); - return -1; - } - - /* Get the current time. */ - struct timeval tv; - (void) __gettimeofday (&tv, NULL); - - /* Compute the relative timeout. */ - struct timespec rt; - rt.tv_sec = abstime->tv_sec - tv.tv_sec; - rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; - if (rt.tv_nsec < 0) - { - rt.tv_nsec += 1000000000; - --rt.tv_sec; - } - /* Already timed out. */ - if (rt.tv_sec < 0) - { - __set_errno (ETIMEDOUT); - return -1; - } - - /* Enable asynchronous cancellation. Required by the standard. */ - int oldtype = __pthread_enable_asynccancel (); - - /* Do wait. */ - err = lll_futex_timed_wait (futex, 0, &rt); - - /* Disable asynchronous cancellation. */ - __pthread_disable_asynccancel (oldtype); - - /* Returned after timing out? */ - if (err == -ETIMEDOUT) - { - __set_errno (ETIMEDOUT); - return -1; - } - } - while (err == 0 || err == -EWOULDBLOCK); - - __set_errno (-err); - return -1; -} |