diff options
Diffstat (limited to 'pthread_rwlockattr_init.c')
-rw-r--r-- | pthread_rwlockattr_init.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/pthread_rwlockattr_init.c b/pthread_rwlockattr_init.c new file mode 100644 index 0000000..f2e2823 --- /dev/null +++ b/pthread_rwlockattr_init.c @@ -0,0 +1,84 @@ +/* + * pthread_rwlockattr_init.c + * + * Description: + * This translation unit implements read/write lock primitives. + * + * -------------------------------------------------------------------------- + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright(C) 1998 John E. Bossom + * Copyright(C) 1999,2002 Pthreads-win32 contributors + * + * Contact Email: rpj@ise.canberra.edu.au + * + * The current list of contributors is contained + * in the file CONTRIBUTORS included with the source + * code distribution. The list can also be seen at the + * following World Wide Web location: + * http://sources.redhat.com/pthreads-win32/contributors.html + * + * This 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 of the License, or (at your option) any later version. + * + * This 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 this library in the file COPYING.LIB; + * if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#include <errno.h> +#include <limits.h> + +#include "pthread.h" +#include "implement.h" + +int +pthread_rwlockattr_init (pthread_rwlockattr_t * attr) + /* + * ------------------------------------------------------ + * DOCPUBLIC + * Initializes a rwlock attributes object with default + * attributes. + * + * PARAMETERS + * attr + * pointer to an instance of pthread_rwlockattr_t + * + * + * DESCRIPTION + * Initializes a rwlock attributes object with default + * attributes. + * + * RESULTS + * 0 successfully initialized attr, + * ENOMEM insufficient memory for attr. + * + * ------------------------------------------------------ + */ +{ + int result = 0; + pthread_rwlockattr_t rwa; + + rwa = (pthread_rwlockattr_t) calloc (1, sizeof (*rwa)); + + if (rwa == NULL) + { + result = ENOMEM; + } + else + { + rwa->pshared = PTHREAD_PROCESS_PRIVATE; + } + + *attr = rwa; + + return(result); +} /* pthread_rwlockattr_init */ |