diff options
Diffstat (limited to 'libpthread/sysdeps/generic/pt-barrier-init.c')
-rw-r--r-- | libpthread/sysdeps/generic/pt-barrier-init.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libpthread/sysdeps/generic/pt-barrier-init.c b/libpthread/sysdeps/generic/pt-barrier-init.c new file mode 100644 index 00000000..c42b3bb6 --- /dev/null +++ b/libpthread/sysdeps/generic/pt-barrier-init.c @@ -0,0 +1,53 @@ +/* pthread_barrier_init. Generic version. + Copyright (C) 2002, 2005 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, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#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 + || 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) + return ENOMEM; + + *barrier->attr = *attr; + return 0; +} |