/* * pthread_attr_init.c * * Description: * This translation unit implements operations on thread attribute objects. * * -------------------------------------------------------------------------- * * Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems * Copyright(C) 2008 Jason Schmidlapp * * Contact Email: jschmidlapp@users.sourceforge.net * * * Based upon 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 original list of contributors to the Pthreads-win32 project * is contained in the file CONTRIBUTORS.ptw32 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 #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; } #ifdef _POSIX_THREAD_ATTR_STACKSIZE /* * Default to zero size? */ attr_result->stacksize = 0; #endif #ifdef _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; /* * 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 = pte_osThreadGetDefaultPriority(); attr_result->inheritsched = PTHREAD_EXPLICIT_SCHED; attr_result->contentionscope = PTHREAD_SCOPE_SYSTEM; attr_result->valid = PTE_ATTR_VALID; *attr = attr_result; return 0; }