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/*
* COPYRIGHT (c) 1989-2011.
* 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.com/license/LICENSE.
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <fcntl.h>
#include <semaphore.h>
#include <coverhd.h>
#include <tmacros.h>
#include <timesys.h>
#include "test_support.h"
#include <pthread.h>
#include <sched.h>
#include <rtems/timerdrv.h>
#define MAX_SEMS 2
sem_t sem1;
sem_t *n_sem1;
void *Blocker( void *argument)
{
(void) sem_wait(&sem1);
/* should never return */
rtems_test_assert( FALSE );
return NULL;
}
void *POSIX_Init(void *argument)
{
int status;
pthread_t threadId;
benchmark_timer_t end_time;
puts( "\n\n*** POSIX TIME TEST SEMAPHORE 04 ***" );
status = pthread_create( &threadId, NULL, Blocker, NULL );
rtems_test_assert( status == 0 );
/*
* Deliberately create the semaphore after the threads. This way if the
* threads do run before we intend, they will get an error.
*/
status = sem_init( &sem1, 0, 1 );
rtems_test_assert( status == 0 );
/*
* Ensure the semaphore is unavailable so the other threads block.
* Lock semaphore resource to ensure thread blocks.
*/
status = sem_wait(&sem1);
rtems_test_assert( status == 0 );
/*
* Let the other thread start so the thread startup overhead,
* is accounted for. When we return, we can start the benchmark.
*/
sched_yield();
/* let other thread run */
benchmark_timer_initialize();
status = sem_post( &sem1 ); /* semaphore unblocking operation */
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"sem_post - thread waiting, no preempt",
end_time,
1,
0,
0
);
puts( "*** END OF POSIX TIME TEST SEMAPHORE 04 ***" );
rtems_test_exit( 0 );
return NULL;
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
#define CONFIGURE_MAXIMUM_POSIX_THREADS 2
#define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES MAX_SEMS
#define CONFIGURE_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
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