Home | History | Annotate | Line # | Download | only in posix
      1  1.1.1.9  mrg /* Copyright (C) 2005-2024 Free Software Foundation, Inc.
      2      1.1  mrg    Contributed by Sebastian Huber <sebastian.huber (at) embedded-brains.de>.
      3      1.1  mrg 
      4      1.1  mrg    This file is part of the GNU Offloading and Multi Processing Library
      5      1.1  mrg    (libgomp).
      6      1.1  mrg 
      7      1.1  mrg    Libgomp is free software; you can redistribute it and/or modify it
      8      1.1  mrg    under the terms of the GNU General Public License as published by
      9      1.1  mrg    the Free Software Foundation; either version 3, or (at your option)
     10      1.1  mrg    any later version.
     11      1.1  mrg 
     12      1.1  mrg    Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
     13      1.1  mrg    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
     14      1.1  mrg    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
     15      1.1  mrg    more details.
     16      1.1  mrg 
     17      1.1  mrg    Under Section 7 of GPL version 3, you are granted additional
     18      1.1  mrg    permissions described in the GCC Runtime Library Exception, version
     19      1.1  mrg    3.1, as published by the Free Software Foundation.
     20      1.1  mrg 
     21      1.1  mrg    You should have received a copy of the GNU General Public License and
     22      1.1  mrg    a copy of the GCC Runtime Library Exception along with this program;
     23      1.1  mrg    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     24      1.1  mrg    <http://www.gnu.org/licenses/>.  */
     25      1.1  mrg 
     26      1.1  mrg /* This is the default implementation of the thread pool management
     27      1.1  mrg    for libgomp.  This type is private to the library.  */
     28      1.1  mrg 
     29      1.1  mrg #ifndef GOMP_POOL_H
     30      1.1  mrg #define GOMP_POOL_H 1
     31      1.1  mrg 
     32      1.1  mrg #include "libgomp.h"
     33      1.1  mrg 
     34      1.1  mrg /* Get the thread pool, allocate and initialize it on demand.  */
     35      1.1  mrg 
     36      1.1  mrg static inline struct gomp_thread_pool *
     37      1.1  mrg gomp_get_thread_pool (struct gomp_thread *thr, unsigned nthreads)
     38      1.1  mrg {
     39      1.1  mrg   struct gomp_thread_pool *pool = thr->thread_pool;
     40      1.1  mrg   if (__builtin_expect (pool == NULL, 0))
     41      1.1  mrg     {
     42      1.1  mrg       pool = gomp_malloc (sizeof (*pool));
     43      1.1  mrg       pool->threads = NULL;
     44      1.1  mrg       pool->threads_size = 0;
     45      1.1  mrg       pool->threads_used = 0;
     46      1.1  mrg       pool->last_team = NULL;
     47      1.1  mrg       pool->threads_busy = nthreads;
     48      1.1  mrg       thr->thread_pool = pool;
     49      1.1  mrg       pthread_setspecific (gomp_thread_destructor, thr);
     50      1.1  mrg     }
     51      1.1  mrg   return pool;
     52      1.1  mrg }
     53      1.1  mrg 
     54      1.1  mrg static inline void
     55      1.1  mrg gomp_release_thread_pool (struct gomp_thread_pool *pool)
     56      1.1  mrg {
     57      1.1  mrg   /* Do nothing in the default implementation.  */
     58      1.1  mrg }
     59      1.1  mrg 
     60      1.1  mrg static inline pthread_attr_t *
     61      1.1  mrg gomp_adjust_thread_attr (pthread_attr_t *attr, pthread_attr_t *mutable_attr)
     62      1.1  mrg {
     63      1.1  mrg   /* Do nothing in the default implementation.  */
     64      1.1  mrg   return attr;
     65      1.1  mrg }
     66      1.1  mrg 
     67      1.1  mrg #endif /* GOMP_POOL_H */
     68