forked from Imagelibrary/rtems
8fbe2e69b5
This change starts with removing the effectively empty file timerdrv.h. The prototypes for benchmark_timer_XXX() were in btimer.h which was not universally used. Thus every use of timerdrv.h had to be changed to btimer.h. Then the prototypes for benchmark_timer_read() had to be adjusted to return benchmark_timer_t rather than int or uint32_t. I took this opportunity to also correct the file headers to separate the copyright from the file description comments which is needed to ensure the copyright isn't propagated into Doxygen output.
169 lines
3.5 KiB
C
169 lines
3.5 KiB
C
/*
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* COPYRIGHT (c) 1989-2013.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <errno.h>
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#include <fcntl.h>
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#include <semaphore.h>
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#include <coverhd.h>
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#include <tmacros.h>
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#include <timesys.h>
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#include "test_support.h"
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#include <pthread.h>
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#include <sched.h>
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#include <rtems/btimer.h>
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const char rtems_test_name[] = "PSXTMSEM 05";
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/* forward declarations to avoid warnings */
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void *POSIX_Init(void *argument);
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void *Middle(void *argument);
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void *Low(void *argument);
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#define MAX_SEMS 2
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sem_t sem1;
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void *Low(
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void *argument
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)
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{
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int status;
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benchmark_timer_t end_time;
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status = sem_wait(&sem1); /* semaphore blocks */
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end_time = benchmark_timer_read();
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rtems_test_assert( status == 0 );
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put_time(
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"sem_post: thread waiting preempt",
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end_time,
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OPERATION_COUNT,
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0,
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0
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);
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TEST_END();
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rtems_test_exit( 0 );
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return NULL;
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}
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void *Middle(
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void *argument
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)
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{
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int status;
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status = sem_wait(&sem1); /* semaphore blocks */
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rtems_test_assert( status == 0 );
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/* thread switch occurs */
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status = sem_post(&sem1);
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rtems_test_assert( status == 0 );
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/* thread switch occurs */
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/* should never return */
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rtems_test_assert( FALSE );
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return NULL;
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}
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void *POSIX_Init(
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void *argument
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)
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{
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int i;
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int status;
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pthread_t threadId;
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pthread_attr_t attr;
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struct sched_param param;
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TEST_BEGIN();
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/*
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* Deliberately create the semaphore BEFORE the threads. This way the
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* threads should preempt this thread and block as they are created.
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*/
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status = sem_init( &sem1, 0, 1 );
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rtems_test_assert( status == 0 );
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/*
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* Obtain the semaphore so the threads will block.
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*/
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status = sem_wait( &sem1 );
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rtems_test_assert( status == 0 );
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/*
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* Now lower our priority
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*/
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status = pthread_attr_init( &attr );
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rtems_test_assert( status == 0 );
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status = pthread_attr_setinheritsched( &attr, PTHREAD_EXPLICIT_SCHED );
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rtems_test_assert( status == 0 );
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status = pthread_attr_setschedpolicy( &attr, SCHED_RR );
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rtems_test_assert( status == 0 );
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param.sched_priority = 2;
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status = pthread_attr_setschedparam( &attr, ¶m );
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rtems_test_assert( status == 0 );
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/*
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* And create rest of threads as more important than we are. They
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* will preempt us as they are created and block.
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*/
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for ( i=0 ; i < OPERATION_COUNT ; i++ ) {
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param.sched_priority = 3 + i;
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status = pthread_attr_setschedparam( &attr, ¶m );
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rtems_test_assert( status == 0 );
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status = pthread_create(
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&threadId,
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&attr,
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(i == OPERATION_COUNT - 1) ? Low : Middle,
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NULL
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);
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rtems_test_assert( status == 0 );
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}
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/*
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* Now start the timer which will be stopped in Low.
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* Release the semaphore so threads unblock and preempt.
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*/
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benchmark_timer_initialize();
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status = sem_post( &sem1 );
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/* thread switch occurs */
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/* should never return */
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rtems_test_assert( FALSE );
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return NULL;
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}
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/* configuration information */
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#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
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#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
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#define CONFIGURE_MAXIMUM_POSIX_THREADS OPERATION_COUNT + 2
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#define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES MAX_SEMS
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#define CONFIGURE_POSIX_INIT_THREAD_TABLE
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#define CONFIGURE_INIT
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#include <rtems/confdefs.h>
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/* end of file */
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