diff options
Diffstat (limited to 'sysdeps/htl/pt-barrier-init.c')
-rw-r--r-- | sysdeps/htl/pt-barrier-init.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/htl/pt-barrier-init.c b/sysdeps/htl/pt-barrier-init.c new file mode 100644 index 0000000..8f652d7 --- /dev/null +++ b/sysdeps/htl/pt-barrier-init.c @@ -0,0 +1,51 @@ +/* pthread_barrier_init. Generic version. + Copyright (C) 2002-2018 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 <pthread.h> +#include <string.h> +#include <assert.h> + +#include <pt-internal.h> + +int +pthread_barrier_init (pthread_barrier_t *barrier, + const pthread_barrierattr_t *attr, unsigned count) +{ + if (count == 0) + return EINVAL; + + memset (barrier, 0, sizeof *barrier); + + barrier->__lock = PTHREAD_SPINLOCK_INITIALIZER; + barrier->__pending = count; + barrier->__count = count; + + if (attr == NULL + || memcmp (attr, &__pthread_default_barrierattr, sizeof (*attr) == 0)) + /* Use the default attributes. */ + return 0; + + /* Non-default attributes. */ + + barrier->__attr = malloc (sizeof *attr); + if (barrier->__attr == NULL) + return ENOMEM; + + *barrier->__attr = *attr; + return 0; +} |