forked from Imagelibrary/rtems
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/*
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* COPYRIGHT (c) 1989-2013.
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* On-Line Applications Research Corporation (OAR).
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* COPYRIGHT (c) 2013.
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <timesys.h>
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#include <pthread.h>
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#include <sched.h>
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#include <rtems/btimer.h>
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#include "test_support.h"
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const char rtems_test_name[] = "PSXTMTHREAD 05";
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/* forward declarations to avoid warnings */
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void *POSIX_Init(void *argument);
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void benchmark_pthread_create(void);
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void benchmark_pthread_setschedparam(void);
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void *test_thread(void *argument);
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void benchmark_pthread_setschedparam(void)
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{
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int status;
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int policy;
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struct sched_param param;
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pthread_t thread_ID;
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status = pthread_create(&thread_ID, NULL, test_thread, NULL);
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rtems_test_assert( status == 0 );
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/* make test_thread equal to POSIX_Init() */
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pthread_getschedparam(pthread_self(), &policy, ¶m);
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pthread_setschedparam(thread_ID, policy, ¶m);
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/* At this point, we've switched to test_thread */
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/* Back from test_thread, switch to test_thread again */
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param.sched_priority = sched_get_priority_min(policy);
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benchmark_timer_initialize();
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//lower own priority to minimun, scheduler forces an involuntary context switch
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pthread_setschedparam(pthread_self(), policy, ¶m);
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}
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void *test_thread(
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void *argument
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)
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{
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uint32_t end_time;
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sched_yield();
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end_time = benchmark_timer_read();
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put_time(
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"pthread_setschedparam: lower own priority preempt",
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end_time,
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1, /* Only executed once */
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0,
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0
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);
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TEST_END();
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rtems_test_exit(0);
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//Empty thread used in pthread_create().
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return NULL;
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}
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void *POSIX_Init(
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void *argument
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)
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{
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TEST_BEGIN();
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benchmark_pthread_setschedparam();
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rtems_test_assert( 1 );
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return NULL;
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}
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/* configuration information */
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#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
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#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
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#define CONFIGURE_MAXIMUM_POSIX_THREADS 2
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#define CONFIGURE_POSIX_INIT_THREAD_TABLE
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#define CONFIGURE_INIT
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#include <rtems/confdefs.h>
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/* end of file */
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