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Diffstat (limited to 'pthreads/pthread_getschedparam.c')
-rw-r--r-- | pthreads/pthread_getschedparam.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/pthreads/pthread_getschedparam.c b/pthreads/pthread_getschedparam.c new file mode 100644 index 000000000..0afcfb74a --- /dev/null +++ b/pthreads/pthread_getschedparam.c @@ -0,0 +1,75 @@ +/* + * sched_getschedparam.c + * + * Description: + * POSIX thread functions that deal with thread scheduling. + * + * -------------------------------------------------------------------------- + * + * 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" +#include "sched.h" + +int +pthread_getschedparam (pthread_t thread, int *policy, + struct sched_param *param) +{ + int result; + + /* Validate the thread id. */ + result = pthread_kill (thread, 0); + if (0 != result) + { + return result; + } + + /* + * Validate the policy and param args. + * Check that a policy constant wasn't passed rather than &policy. + */ + if (policy <= (int *) SCHED_MAX || param == NULL) + { + return EINVAL; + } + + /* Fill out the policy. */ + *policy = SCHED_OTHER; + + /* + * This function must return the priority value set by + * the most recent pthread_setschedparam() or pthread_create() + * for the target thread. It must not return the actual thread + * priority as altered by any system priority adjustments etc. + */ + param->sched_priority = ((ptw32_thread_t *)thread.p)->sched_priority; + + return 0; +} |