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/*
* File: priority2.c
*
*
* Pthreads-win32 - POSIX Threads Library for Win32
* Copyright (C) 1998 Ben Elliston and Ross Johnson
* Copyright (C) 1999,2000,2001 Ross Johnson
*
* Contact Email: rpj@ise.canberra.edu.au
*
* 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 2.1 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* --------------------------------------------------------------------------
*
* Test Synopsis:
* - Test thread priority setting after creation.
*
* Test Method (Validation or Falsification):
* -
*
* Requirements Tested:
* -
*
* Features Tested:
* -
*
* Cases Tested:
* -
*
* Description:
* -
*
* Environment:
* -
*
* Input:
* - None.
*
* Output:
* - File name, Line number, and failed expression on failure.
* - No output on success.
*
* Assumptions:
* -
*
* Pass Criteria:
* - Process returns zero exit status.
*
* Fail Criteria:
* - Process returns non-zero exit status.
*/
#include "test.h"
enum {
PTW32TEST_THREAD_INIT_PRIO = 0,
PTW32TEST_MAXPRIORITIES = 512
};
int minPrio;
int maxPrio;
int validPriorities[PTW32TEST_MAXPRIORITIES];
pthread_mutex_t startMx = PTHREAD_MUTEX_INITIALIZER;
void * func(void * arg)
{
int policy;
struct sched_param param;
assert(pthread_mutex_lock(&startMx) == 0);
assert(pthread_getschedparam(pthread_self(), &policy, ¶m) == 0);
assert(pthread_mutex_unlock(&startMx) == 0);
assert(policy == SCHED_OTHER);
return (void *) param.sched_priority;
}
void *
getValidPriorities(void * arg)
{
int prioSet;
pthread_t threadID = pthread_self();
HANDLE threadH = pthread_getw32threadhandle_np(threadID);
for (prioSet = minPrio;
prioSet <= maxPrio;
prioSet++)
{
/*
* If prioSet is invalid then the threads priority is unchanged
* from the previous value. Make the previous value a known
* one so that we can check later.
*/
SetThreadPriority(threadH, PTW32TEST_THREAD_INIT_PRIO);
SetThreadPriority(threadH, prioSet);
validPriorities[prioSet+(PTW32TEST_MAXPRIORITIES/2)] = GetThreadPriority(threadH);
}
return (void *) 0;
}
int
main()
{
pthread_t t;
void * result = NULL;
struct sched_param param;
assert((maxPrio = sched_get_priority_max(SCHED_OTHER)) != -1);
assert((minPrio = sched_get_priority_min(SCHED_OTHER)) != -1);
assert(pthread_create(&t, NULL, getValidPriorities, NULL) == 0);
assert(pthread_join(t, &result) == 0);
/* Set the thread's priority to a known initial value.
* If the new priority is invalid then the threads priority
* is unchanged from the previous value.
*/
SetThreadPriority(pthread_getw32threadhandle_np(pthread_self()),
PTW32TEST_THREAD_INIT_PRIO);
for (param.sched_priority = minPrio;
param.sched_priority <= maxPrio;
param.sched_priority++)
{
assert(pthread_mutex_lock(&startMx) == 0);
assert(pthread_create(&t, NULL, func, NULL) == 0);
assert(pthread_setschedparam(t, SCHED_OTHER, ¶m) == 0);
assert(pthread_mutex_unlock(&startMx) == 0);
pthread_join(t, &result);
assert((int) result ==
validPriorities[param.sched_priority+(PTW32TEST_MAXPRIORITIES/2)]);
}
return 0;
}
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