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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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <fcntl.h>
#include <semaphore.h>
#include <tmacros.h>
#include <timesys.h>
#include <rtems/btimer.h>
#include "test_support.h"
const char rtems_test_name[] = "PSXTMSEM 02";
/* forward declarations to avoid warnings */
void *POSIX_Init(void *argument);
sem_t sem1;
sem_t *n_sem1;
static void benchmark_sem_getvalue(void)
{
benchmark_timer_t end_time;
int status;
int value;
benchmark_timer_initialize();
status = sem_getvalue(&sem1, &value);
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"sem_getvalue: only case",
end_time,
1, /* Only executed once */
0,
0
);
}
static void benchmark_sem_wait(void)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_wait(&sem1);
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"sem_wait: available",
end_time,
1, /* Only executed once */
0,
0
);
}
static void benchmark_sem_post(void)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_post(&sem1);
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"sem_post: no threads waiting",
end_time,
1, /* Only executed once */
0,
0
);
}
static void benchmark_sem_trywait_available(void)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_trywait(&sem1);
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"sem_trywait: available",
end_time,
1, /* Only executed once */
0,
0
);
}
static void benchmark_sem_trywait_not_available(void)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_trywait(&sem1);
end_time = benchmark_timer_read();
/*it must be non avalible, so status should be non zero*/
rtems_test_assert( status != 0 );
put_time(
"sem_trywait: not available",
end_time,
1, /* Only executed once */
0,
0
);
}
void *POSIX_Init(void *argument)
{
int status;
TEST_BEGIN();
/* create the semaphore */
status = sem_init( &sem1, 0, 1 );
rtems_test_assert( status == 0 );
/* obtain the actual semaphore value */
benchmark_sem_getvalue();
/* lock the semaphore */
benchmark_sem_wait();
/* unlock the semaphore */
benchmark_sem_post();
/* try to lock the semaphore - available */
benchmark_sem_trywait_available();
/* try to lock the semaphore, not available */
benchmark_sem_trywait_not_available();
TEST_END();
/*Destroying the semaphore*/
status = sem_destroy(&sem1);
rtems_test_assert( status == 0 );
rtems_test_exit(0);
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
#define CONFIGURE_MAXIMUM_POSIX_THREADS 1
#define CONFIGURE_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
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