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112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/*
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* pthread_get.c
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*
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* Description:
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* This translation unit implements miscellaneous thread functions.
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*
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* --------------------------------------------------------------------------
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*
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* Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems
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* Copyright(C) 2008 Jason Schmidlapp
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*
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* Contact Email: jschmidlapp@users.sourceforge.net
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*
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*
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* Based upon 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 original list of contributors to the Pthreads-win32 project
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* is contained in the file CONTRIBUTORS.ptw32 included with the
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* source 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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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 pthread_getconcurrency (void)
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{
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return pte_concurrency;
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}
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int 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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return result;
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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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return EINVAL;
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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 = ((pte_thread_t *)thread)->sched_priority;
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return 0;
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}
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void *pthread_getspecific (pthread_key_t key)
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/*
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* ------------------------------------------------------
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* DOCPUBLIC
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* This function returns the current value of key in the
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* calling thread. If no value has been set for 'key' in
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* the thread, NULL is returned.
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*
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* PARAMETERS
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* key
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* an instance of pthread_key_t
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*
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*
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* DESCRIPTION
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* This function returns the current value of key in the
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* calling thread. If no value has been set for 'key' in
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* the thread, NULL is returned.
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*
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* RESULTS
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* key value or NULL on failure
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*
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* ------------------------------------------------------
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*/
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{
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if (key == NULL)
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return NULL;
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return pte_osTlsGetValue (key->key);
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}
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