177 lines
4.9 KiB
C
177 lines
4.9 KiB
C
/*
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* File: inherit1.c
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*
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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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* --------------------------------------------------------------------------
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*
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* Test Synopsis:
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* - Test thread priority inheritance.
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*
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* Test Method (Validation or Falsification):
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* -
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*
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* Requirements Tested:
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* -
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*
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* Features Tested:
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* -
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*
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* Cases Tested:
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* -
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*
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* Description:
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* -
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*
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* Environment:
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* -
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*
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* Input:
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* - None.
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*
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* Output:
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* - File name, Line number, and failed expression on failure.
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* - No output on success.
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*
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* Assumptions:
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* -
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*
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* Pass Criteria:
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* - Process returns zero exit status.
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*
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* Fail Criteria:
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* - Process returns non-zero exit status.
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*/
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#include "test.h"
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enum {
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PTW32TEST_THREAD_INIT_PRIO = 0,
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PTW32TEST_MAXPRIORITIES = 512
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};
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int minPrio;
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int maxPrio;
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int validPriorities[PTW32TEST_MAXPRIORITIES];
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void * func(void * arg)
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{
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int policy;
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struct sched_param param;
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assert(pthread_getschedparam(pthread_self(), &policy, ¶m) == 0);
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return (void *) (size_t)param.sched_priority;
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}
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void *
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getValidPriorities(void * arg)
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{
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int prioSet;
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pthread_t thread = pthread_self();
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HANDLE threadH = pthread_getw32threadhandle_np(thread);
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struct sched_param param;
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for (prioSet = minPrio;
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prioSet <= maxPrio;
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prioSet++)
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{
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/*
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* If prioSet is invalid then the threads priority is unchanged
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* from the previous value. Make the previous value a known
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* one so that we can check later.
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*/
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param.sched_priority = prioSet;
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assert(pthread_setschedparam(thread, SCHED_OTHER, ¶m) == 0);
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validPriorities[prioSet+(PTW32TEST_MAXPRIORITIES/2)] = GetThreadPriority(threadH);
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}
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return (void *) 0;
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}
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int
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main()
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{
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pthread_t t;
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pthread_t mainThread = pthread_self();
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pthread_attr_t attr;
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void * result = NULL;
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struct sched_param param;
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struct sched_param mainParam;
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int prio;
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int policy;
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int inheritsched = -1;
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pthread_t threadID = pthread_self();
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HANDLE threadH = pthread_getw32threadhandle_np(threadID);
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assert((maxPrio = sched_get_priority_max(SCHED_OTHER)) != -1);
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assert((minPrio = sched_get_priority_min(SCHED_OTHER)) != -1);
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assert(pthread_create(&t, NULL, getValidPriorities, NULL) == 0);
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assert(pthread_join(t, &result) == 0);
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assert(pthread_attr_init(&attr) == 0);
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assert(pthread_attr_setinheritsched(&attr, PTHREAD_INHERIT_SCHED) == 0);
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assert(pthread_attr_getinheritsched(&attr, &inheritsched) == 0);
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assert(inheritsched == PTHREAD_INHERIT_SCHED);
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for (prio = minPrio; prio <= maxPrio; prio++)
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{
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mainParam.sched_priority = prio;
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/* Set the thread's priority to a known initial value. */
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SetThreadPriority(threadH, PTW32TEST_THREAD_INIT_PRIO);
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/* Change the main thread priority */
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assert(pthread_setschedparam(mainThread, SCHED_OTHER, &mainParam) == 0);
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assert(pthread_getschedparam(mainThread, &policy, &mainParam) == 0);
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assert(policy == SCHED_OTHER);
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/* Priority returned below should be the level set by pthread_setschedparam(). */
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assert(mainParam.sched_priority == prio);
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assert(GetThreadPriority(threadH) ==
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validPriorities[prio+(PTW32TEST_MAXPRIORITIES/2)]);
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for (param.sched_priority = prio;
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param.sched_priority <= maxPrio;
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param.sched_priority++)
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{
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/* The new thread create should ignore this new priority */
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assert(pthread_attr_setschedparam(&attr, ¶m) == 0);
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assert(pthread_create(&t, &attr, func, NULL) == 0);
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pthread_join(t, &result);
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assert((int)(size_t) result == mainParam.sched_priority);
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}
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}
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return 0;
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}
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