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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 <timesys.h>
#include <tmacros.h>
#include <rtems/timerdrv.h>
#include "test_support.h"
#include <pthread.h>
#include <sched.h>
/* forward declarations to avoid warnings */
void *POSIX_Init(void *argument);
void *Middle(void *argument);
void *Low(void *argument);
pthread_barrier_t barrier;
void *Low(
void *argument
)
{
benchmark_timer_t end_time;
/*
* Now we have finished the thread startup overhead,
* so let other threads run. When we return, we can
* finish the benchmark.
*/
sched_yield();
/* let other threads run */
end_time = benchmark_timer_read();
put_time(
"pthread_barrier_wait: blocking",
end_time,
OPERATION_COUNT,
0,
0
);
puts( "*** END OF POSIX TIME PSXTMBARRIER 02 ***" );
rtems_test_exit( 0 );
return NULL;
}
void *Middle(
void *argument
)
{
/*
* Now we have finished the thread startup overhead,
* so let other threads run. When we return, we can
* finish the benchmark.
*/
sched_yield();
/* let other threads run */
(void) pthread_barrier_wait( &barrier );
/* should never return */
rtems_test_assert( FALSE );
return NULL;
}
void *POSIX_Init(
void *argument
)
{
int i;
int status;
pthread_t threadId;
pthread_barrierattr_t attr;
puts( "\n\n*** POSIX TIME PSXTMBARRIER 02 ***" );
for ( i=0 ; i < OPERATION_COUNT - 1 ; i++ ) {
status = pthread_create( &threadId, NULL, Middle, NULL );
rtems_test_assert( !status );
}
status = pthread_create( &threadId, NULL, Low, NULL );
rtems_test_assert( !status );
/*
* Create the barrier with default attributes and deliberately
* create it after the Threads so if they run too early, they
* wull fail with an error.
*/
status = pthread_barrierattr_init( &attr );
rtems_test_assert( status == 0 );
/*
* Set threshold on count higher than number of threads so all will
* block.
*/
status = pthread_barrier_init( &barrier,&attr, OPERATION_COUNT + 2 );
rtems_test_assert( status == 0 );
/*
* Let other threads run through their initialization
*/
sched_yield();
/*
* Start the timer and start the blocking barrier wait chain through
* all the other tasks.
*/
benchmark_timer_initialize();
/* blocking barrier call */
status = pthread_barrier_wait( &barrier );
rtems_test_assert( status == 0 );
return NULL;
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
#define CONFIGURE_MAXIMUM_POSIX_THREADS OPERATION_COUNT + 2
#define CONFIGURE_MAXIMUM_POSIX_BARRIERS 1
#define CONFIGURE_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
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