75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/*
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* sched_getschedparam.c
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*
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* Description:
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* POSIX thread functions that deal with thread scheduling.
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*
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* --------------------------------------------------------------------------
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*
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* Pthreads-win32 - POSIX Threads Library for Win32
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* Copyright(C) 1998 John E. Bossom
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* Copyright(C) 1999,2005 Pthreads-win32 contributors
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*
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* Contact Email: rpj@callisto.canberra.edu.au
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*
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* The current list of contributors is contained
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* in the file CONTRIBUTORS included with the source
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* code distribution. The list can also be seen at the
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* following World Wide Web location:
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* http://sources.redhat.com/pthreads-win32/contributors.html
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library in the file COPYING.LIB;
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* if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "pthread.h"
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#include "implement.h"
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#include "sched.h"
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int
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pthread_getschedparam (pthread_t thread, int *policy,
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struct sched_param *param)
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{
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int result;
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/* Validate the thread id. */
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result = pthread_kill (thread, 0);
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if (0 != result)
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{
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return result;
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}
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/*
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* Validate the policy and param args.
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* Check that a policy constant wasn't passed rather than &policy.
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*/
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if (policy <= (int *) SCHED_MAX || param == NULL)
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{
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return EINVAL;
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}
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/* Fill out the policy. */
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*policy = SCHED_OTHER;
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/*
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* This function must return the priority value set by
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* the most recent pthread_setschedparam() or pthread_create()
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* for the target thread. It must not return the actual thread
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* priority as altered by any system priority adjustments etc.
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*/
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param->sched_priority = ((ptw32_thread_t *)thread.p)->sched_priority;
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return 0;
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}
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