diff options
Diffstat (limited to 'nptl/sem_getvalue.c')
-rw-r--r-- | nptl/sem_getvalue.c | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/nptl/sem_getvalue.c b/nptl/sem_getvalue.c deleted file mode 100644 index 8dfc1cde41..0000000000 --- a/nptl/sem_getvalue.c +++ /dev/null @@ -1,55 +0,0 @@ -/* Copyright (C) 2002-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - 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 <semaphore.h> -#include <shlib-compat.h> -#include "semaphoreP.h" -#include <atomic.h> - - -int -__new_sem_getvalue (sem_t *sem, int *sval) -{ - struct new_sem *isem = (struct new_sem *) sem; - - /* XXX Check for valid SEM parameter. */ - /* FIXME This uses relaxed MO, even though POSIX specifies that this function - should be linearizable. However, its debatable whether linearizability - is the right requirement. We need to follow up with POSIX and, if - necessary, use a stronger MO here and elsewhere (e.g., potentially - release MO in all places where we consume a token). */ - -#if __HAVE_64B_ATOMICS - *sval = atomic_load_relaxed (&isem->data) & SEM_VALUE_MASK; -#else - *sval = atomic_load_relaxed (&isem->value) >> SEM_VALUE_SHIFT; -#endif - - return 0; -} -versioned_symbol (libpthread, __new_sem_getvalue, sem_getvalue, GLIBC_2_1); -#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) -int -__old_sem_getvalue (sem_t *sem, int *sval) -{ - struct old_sem *isem = (struct old_sem *) sem; - *sval = isem->value; - return 0; -} -compat_symbol (libpthread, __old_sem_getvalue, sem_getvalue, GLIBC_2_0); -#endif |