diff options
author | rpj <rpj> | 2002-02-18 03:16:52 +0000 |
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committer | rpj <rpj> | 2002-02-18 03:16:52 +0000 |
commit | a416ab17ecf9f2cb0f1e3f7bd645a8d1ce690ca2 (patch) | |
tree | 72f776cd64e48824a5578ff7a523bc69097143b4 /pthread_attr_init.c | |
parent | e6f1797e9e9925ae7f9dda54806ef8f52ae3ed07 (diff) |
Major reorganisation of source code; new routine and tests added.
Diffstat (limited to 'pthread_attr_init.c')
-rw-r--r-- | pthread_attr_init.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/pthread_attr_init.c b/pthread_attr_init.c new file mode 100644 index 0000000..efc3683 --- /dev/null +++ b/pthread_attr_init.c @@ -0,0 +1,118 @@ +/* + * 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) 1999,2002 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 "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. Unless changed explicitly this + * will allow Win32 to set the size to that of the + * main thread. + */ + 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; + +#if 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; +} + |