| /* |
| * pthread_attr_init.c |
| * |
| * Description: |
| * This translation unit implements operations on thread attribute objects. |
| * |
| * -------------------------------------------------------------------------- |
| * |
| * Pthreads-win32 - POSIX Threads Library for Win32 |
| * Copyright(C) 1998 John E. Bossom |
| * Copyright(C) 1999,2005 Pthreads-win32 contributors |
| * |
| * Contact Email: rpj@callisto.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 "pthread.h" |
| #include "implement.h" |
| |
| |
| int |
| pthread_attr_init (pthread_attr_t * attr) |
| /* |
| * ------------------------------------------------------ |
| * DOCPUBLIC |
| * Initializes a thread attributes object with default |
| * attributes. |
| * |
| * PARAMETERS |
| * attr |
| * pointer to an instance of pthread_attr_t |
| * |
| * |
| * DESCRIPTION |
| * Initializes a thread attributes object with default |
| * attributes. |
| * |
| * NOTES: |
| * 1) Used to define thread attributes |
| * |
| * RESULTS |
| * 0 successfully initialized attr, |
| * ENOMEM insufficient memory for attr. |
| * |
| * ------------------------------------------------------ |
| */ |
| { |
| pthread_attr_t attr_result; |
| |
| if (attr == NULL) |
| { |
| /* This is disallowed. */ |
| return EINVAL; |
| } |
| |
| attr_result = (pthread_attr_t) malloc (sizeof (*attr_result)); |
| |
| if (attr_result == NULL) |
| { |
| return ENOMEM; |
| } |
| |
| #if defined(_POSIX_THREAD_ATTR_STACKSIZE) |
| /* |
| * Default to zero size. Unless changed explicitly this |
| * will allow Win32 to set the size to that of the |
| * main thread. |
| */ |
| attr_result->stacksize = 0; |
| #endif |
| |
| #if defined(_POSIX_THREAD_ATTR_STACKADDR) |
| /* FIXME: Set this to something sensible when we support it. */ |
| attr_result->stackaddr = NULL; |
| #endif |
| |
| attr_result->detachstate = PTHREAD_CREATE_JOINABLE; |
| |
| #if defined(HAVE_SIGSET_T) |
| memset (&(attr_result->sigmask), 0, sizeof (sigset_t)); |
| #endif /* HAVE_SIGSET_T */ |
| |
| /* |
| * Win32 sets new threads to THREAD_PRIORITY_NORMAL and |
| * not to that of the parent thread. We choose to default to |
| * this arrangement. |
| */ |
| attr_result->param.sched_priority = THREAD_PRIORITY_NORMAL; |
| attr_result->inheritsched = PTHREAD_EXPLICIT_SCHED; |
| attr_result->contentionscope = PTHREAD_SCOPE_SYSTEM; |
| |
| attr_result->valid = PTW32_ATTR_VALID; |
| |
| *attr = attr_result; |
| |
| return 0; |
| } |