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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 <coverhd.h>
#include <pthread.h>
#include <sched.h>
#include <tmacros.h>
#include <timesys.h>
#include "test_support.h"
#include <rtems/btimer.h>
const char rtems_test_name[] = "PSXTMRWLOCK 06";
/* forward declarations to avoid warnings */
void *POSIX_Init(void *argument);
void *Blocker(void *argument);
pthread_rwlock_t rwlock;
void *Blocker(
void *argument
)
{
(void) pthread_rwlock_wrlock(&rwlock);
/* should never return */
rtems_test_assert( FALSE );
return NULL;
}
void *POSIX_Init(
void *argument
)
{
int status;
pthread_t threadId;
benchmark_timer_t end_time;
pthread_rwlockattr_t attr;
TEST_BEGIN();
status = pthread_create( &threadId, NULL, Blocker, NULL );
rtems_test_assert( status == 0 );
/*
* Deliberately create the rwlock after the threads. This way if the
* threads do run before we intend, they will get an error.
*/
/* creating rwlock */
status = pthread_rwlockattr_init( &attr );
rtems_test_assert( status == 0 );
status = pthread_rwlock_init( &rwlock, &attr );
rtems_test_assert( status == 0 );
/*
* Ensure the rwlock is unavailable so the other threads block.
*/
/* lock rwlock to ensure thread blocks */
status = pthread_rwlock_wrlock(&rwlock);
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 = pthread_rwlock_unlock(&rwlock); /* unlock the rwlock */
end_time = benchmark_timer_read();
rtems_test_assert( status == 0 );
put_time(
"pthread_rwlock_unlock: thread waiting no preempt",
end_time,
1,
0,
0
);
TEST_END();
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_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
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