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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
#define TEST_INIT
#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 01";
/* forward declarations to avoid warnings */
void *POSIX_Init(void *argument);
#define MAX_SEMS 2
sem_t sem1;
sem_t *n_sem1;
sem_t *n_sem2;
static void benchmark_sem_init(void)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_init( &sem1, 0, 1 );
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"sem_init: only case",
end_time,
1, /* Only executed once */
0,
0
);
}
static void benchmark_sem_destroy(void)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_destroy( &sem1 );
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"sem_destroy: only case",
end_time,
1, /* Only executed once */
0,
0
);
}
static void benchmark_sem_open(bool report_time)
{
benchmark_timer_t end_time;
benchmark_timer_initialize();
n_sem1 = sem_open( "sem1", O_CREAT, 0777, 1 );
end_time = benchmark_timer_read();
if ( report_time ) {
put_time(
"sem_open: first open O_CREAT",
end_time,
1, /* Only executed once */
0,
0
);
}
}
static void benchmark_sem_close(bool report_time)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_close( n_sem1 );
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
if ( report_time ) {
put_time(
"sem_close: named first/nested close",
end_time,
1, /* Only executed once */
0,
0
);
}
}
static void benchmark_sem_unlink(const char *message)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_unlink( "sem1" );
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
message,
end_time,
1, /* Only executed once */
0,
0
);
}
static void benchmark_sem_open_second(void)
{
benchmark_timer_t end_time;
benchmark_timer_initialize();
n_sem2 = sem_open( "sem1", O_EXCL, 0777, 1 );
end_time = benchmark_timer_read();
put_time(
"sem_open: second open O_EXCL",
end_time,
1, /* Only executed once */
0,
0
);
}
static void benchmark_sem_close_second(void)
{
benchmark_timer_t end_time;
int status;
benchmark_timer_initialize();
status = sem_close( n_sem2 );
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"sem_close: named second close",
end_time,
1, /* Only executed once */
0,
0
);
}
void *POSIX_Init(void *argument)
{
TEST_BEGIN();
/* creating unnamed semaphore */
benchmark_sem_init();
/* destroying unnamed semaphore */
benchmark_sem_destroy();
/* opening named semaphore first time o_flag = O_CREAT */
benchmark_sem_open(true);
/* opening named semaphore second time o_flag = O_EXCL */
benchmark_sem_open_second();
/* close named semaphore first time -- does not delete */
benchmark_sem_close(true);
/* unlink named semaphore -- does not delete */
benchmark_sem_unlink("sem_unlink: does not delete");
/* close semaphore the second time, this actually deletes it */
benchmark_sem_close_second();
/* recrate named semaphore first time o_flag = O_CREAT */
benchmark_sem_open(false);
benchmark_sem_close(false);
benchmark_sem_unlink("sem_unlink: deletes semaphore");
TEST_END();
rtems_test_exit(0);
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
#define CONFIGURE_MAXIMUM_POSIX_THREADS 1
#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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