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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.
*/
#if defined(USE_WAIT)
#define TEST_NUMBER "08"
#define TEST_CASE "pthread_cond_wait: blocking"
#elif defined(USE_TIMEDWAIT_WITH_VALUE)
#define TEST_NUMBER "09"
#define TEST_CASE "pthread_cond_timedwait: blocking"
#elif defined(USE_TIMEDWAIT_WAIT_VALUE_IN_PAST)
#define TEST_NUMBER "10"
#define TEST_CASE "pthread_cond_timedwait: time in past error"
#else
#error "How am I being compiled?"
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define TEST_INIT
#include <stdio.h>
#include <time.h>
#include <errno.h>
#include <sched.h>
#include <timesys.h>
#include <tmacros.h>
#include <rtems/btimer.h>
#include "test_support.h"
#include <pthread.h>
const char rtems_test_name[] = "PSXTMCOND 08";
/* forward declarations to avoid warnings */
void *POSIX_Init(void *argument);
void *Middle(void *argument);
void *Low(void *argument);
pthread_cond_t CondID;
pthread_mutex_t MutexID;
struct timespec sleepTime;
void *Low(
void *argument
)
{
uint32_t end_time;
end_time = benchmark_timer_read();
put_time(
TEST_CASE,
end_time,
OPERATION_COUNT,
0,
0
);
TEST_END();
rtems_test_exit( 0 );
return NULL;
}
void *Middle(
void *argument
)
{
int rc;
rc = pthread_mutex_lock(&MutexID);
rtems_test_assert( rc == 0 );
/* block and switch to another task here */
#if defined(USE_WAIT)
rc = pthread_cond_wait( &CondID, &MutexID );
rtems_test_assert( rc == 0 );
#elif defined(USE_TIMEDWAIT_WITH_VALUE)
/* adjust sleepTime to get something obviously in the future */
++sleepTime.tv_sec;
rc = pthread_cond_timedwait( &CondID, &MutexID, &sleepTime );
rtems_test_assert( rc == 0 );
#elif defined(USE_TIMEDWAIT_WAIT_VALUE_IN_PAST)
{
/* override sleepTime with something obviously in the past */
sleepTime.tv_sec = 0;
sleepTime.tv_nsec = 5;
/* this does all the work of timedwait but immediately returns */
rc = pthread_cond_timedwait( &CondID, &MutexID, &sleepTime );
rtems_test_assert(rc == ETIMEDOUT);
benchmark_timer_read();
}
#endif
pthread_mutex_unlock(&MutexID);
#if defined(USE_TIMEDWAIT_WAIT_VALUE_IN_PAST)
/*
* In this case, unlock does not switch to another thread. so we need
* to explicitly yield. If we do not yield, then we will measure the
* time required to do an implicit pthread_exit() which is undesirable
* from a measurement viewpoint.
*/
sched_yield();
#endif
return NULL;
}
void *POSIX_Init(
void *argument
)
{
int i;
int status;
pthread_t threadId;
int rc;
struct timeval tp;
TEST_BEGIN();
rc = gettimeofday(&tp, NULL);
rtems_test_assert( rc == 0 );
/* Convert from timeval to timespec */
sleepTime.tv_sec = tp.tv_sec;
sleepTime.tv_nsec = tp.tv_usec * 1000;
rc = pthread_cond_init(&CondID, NULL);
rtems_test_assert( rc == 0 );
rc = pthread_mutex_init(&MutexID, NULL);
rtems_test_assert( rc == 0 );
rc = pthread_mutex_lock(&MutexID);
rtems_test_assert( rc == 0 );
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 );
/* start the timer and switch through all the other tasks */
benchmark_timer_initialize();
rc = pthread_mutex_unlock(&MutexID);
rtems_test_assert( rc == 0 );
/* Should never return. */
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_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
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