diff options
Diffstat (limited to 'sysdeps/htl/sem-getvalue.c')
-rw-r--r-- | sysdeps/htl/sem-getvalue.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sysdeps/htl/sem-getvalue.c b/sysdeps/htl/sem-getvalue.c new file mode 100644 index 0000000000..2065458527 --- /dev/null +++ b/sysdeps/htl/sem-getvalue.c @@ -0,0 +1,32 @@ +/* Get the value of a semaphore. Generic version. + Copyright (C) 2005-2018 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#include <semaphore.h> +#include <pt-internal.h> + +int +__sem_getvalue (sem_t *restrict sem, int *restrict value) +{ + __pthread_spin_lock (&sem->__lock); + *value = sem->__value; + __pthread_spin_unlock (&sem->__lock); + + return 0; +} + +strong_alias (__sem_getvalue, sem_getvalue); |