diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/s390/lowlevelsem.h')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/s390/lowlevelsem.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevelsem.h b/nptl/sysdeps/unix/sysv/linux/s390/lowlevelsem.h deleted file mode 100644 index 720fef49a9..0000000000 --- a/nptl/sysdeps/unix/sysv/linux/s390/lowlevelsem.h +++ /dev/null @@ -1,71 +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. */ - -#ifndef _LOWLEVELSEM_H -#define _LOWLEVELSEM_H 1 - -#include <dl-sysdep.h> -#include <tls.h> -#include <lowlevellock.h> -#include <semaphore.h> - - -static inline int -__attribute__ ((always_inline)) -lll_sem_wait (sem_t *sem) -{ - int oldval; - int newval; - - while (1) - { - /* Atomically decrement semaphore counter if it is > 0. */ - lll_compare_and_swap ((int *) sem, oldval, newval, - "ltr %2,%1; jnp 1f; ahi %2,-1"); - /* oldval != newval if the semaphore count has been decremented. */ - if (oldval != newval) - return 0; - int err = lll_futex_wait ((int *) sem, 0); - if (err != 0 && err != -EWOULDBLOCK) - return -err; - } - return 0; -} - - -#if 0 -/* Not defined anywhere. */ -extern int __lll_sem_timedwait (sem_t *sem, const struct timespec *ts) - attribute_hidden; -#define lll_sem_timedwait(sem, timeout) \ - __lll_sem_timedwait (sem, timeout) -#endif - -static inline void -__attribute__ ((always_inline)) -lll_sem_post(sem_t *sem) -{ - int oldval; - int newval; - - lll_compare_and_swap ((int *) sem, oldval, newval, "lr %2,%1; ahi %2,1"); - lll_futex_wake ((int *) sem, newval); -} - -#endif /* lowlevelsem.h */ |