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/*
* COPYRIGHT (c) 1989-2013.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if !defined(OPERATION_COUNT)
#define OPERATION_COUNT 100
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tmacros.h>
#include <timesys.h>
#include "test_support.h"
#include <pthread.h>
#include <sched.h>
#include <rtems/btimer.h>
const char rtems_test_name[] = "PSXTMBARRIER 04";
/* forward declarations to avoid warnings */
void *POSIX_Init(void *argument);
void *Blocker(void *argument);
#define N 2
pthread_barrier_t barrier;
void *Blocker(
void *argument
)
{
benchmark_timer_t end_time;
/* block on barrier wait, switch back to first thread */
(void) pthread_barrier_wait( &barrier );
/* preempt first thread and stop time */
end_time = benchmark_timer_read();
put_time(
"pthread_barrier_wait: releasing preempt",
end_time,
1,
0,
0
);
TEST_END();
rtems_test_exit( 0 );
}
void *POSIX_Init(
void *argument
)
{
int status;
pthread_t threadId;
int policy;
struct sched_param param;
TEST_BEGIN();
status = pthread_create( &threadId, NULL, Blocker, NULL );
rtems_test_assert( status == 0 );
status = pthread_barrier_init( &barrier, NULL, N );
rtems_test_assert( status == 0 );
/* yield to second thread so it can start up and block */
sched_yield();
pthread_getschedparam(threadId, &policy, ¶m);
param.sched_priority = sched_get_priority_max(policy) - 1;
/* preempt doesn't occur here due to second thread being blocked */
pthread_setschedparam(threadId, policy, ¶m);
/* as soon as this thread waits on barrier, release occurs, 2nd thread
* preempts this one due to having a higher priority
*/
benchmark_timer_initialize();
status = pthread_barrier_wait( &barrier );
/* avoid warning but should not be executed */
return NULL;
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
#define CONFIGURE_MAXIMUM_POSIX_THREADS 2
#define CONFIGURE_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
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