/*
* Copyright (c) 2013 Gedare Bloom.
*
* 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.
*/
#include <rtems.h>
#include <stdio.h>
#include "tmacros.h"
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_MAXIMUM_TASKS 4
#define CONFIGURE_MAXIMUM_SEMAPHORES 2
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
const char rtems_test_name[] = "SPSEM 2";
rtems_task Task01(rtems_task_argument ignored);
rtems_task Task02(rtems_task_argument ignored);
rtems_task Task03(rtems_task_argument ignored);
rtems_task Init(rtems_task_argument ignored);
static int getprio(void)
{
rtems_status_code status;
rtems_task_priority pri;
status = rtems_task_set_priority(RTEMS_SELF, RTEMS_CURRENT_PRIORITY, &pri);
directive_failed( status, "rtems_task_set_priority");
return (int)pri;
}
rtems_id Task_id[3];
rtems_name Task_name[3];
rtems_id sem_id[2];
rtems_name sem_name[2];
rtems_task Init(rtems_task_argument ignored)
{
rtems_status_code status;
rtems_attribute sem_attr;
TEST_BEGIN();
sem_attr = RTEMS_INHERIT_PRIORITY | RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY;
sem_name[0] = rtems_build_name( 'S','0',' ',' ');
status = rtems_semaphore_create(
sem_name[0],
1,
sem_attr,
0,
&sem_id[0]
);
directive_failed( status, "rtems_semaphore_create of S0");
printf("init: S0 created\n");
sem_name[1] = rtems_build_name( 'S','1',' ',' ');
status = rtems_semaphore_create(
sem_name[1],
1,
sem_attr,
0,
&sem_id[1]
);
directive_failed( status, "rtems_semaphore_create of S1");
printf("init: S1 created\n");
Task_name[0] = rtems_build_name( 'T','A','0','1');
status = rtems_task_create(
Task_name[0],
36,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&Task_id[0]
);
directive_failed( status, "rtems_task_create of TA01");
printf("init: TA01 created with priority 36\n");
Task_name[1] = rtems_build_name( 'T','A','0','2');
status = rtems_task_create(
Task_name[1],
34,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&Task_id[1]
);
directive_failed( status , "rtems_task_create of TA02\n");
printf("init: TA02 created with priority 34\n");
Task_name[2] = rtems_build_name( 'T','A','0','3');
status = rtems_task_create(
Task_name[2],
32,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&Task_id[2]
);
directive_failed( status , "rtems_task_create of TA03\n");
printf("init: TA03 created with priority 32\n");
status = rtems_task_start( Task_id[0], Task01, 0);
directive_failed( status, "rtems_task_start of TA01");
status = rtems_task_delete( RTEMS_SELF);
directive_failed( status, "rtems_task_delete of INIT");
}
/* Task01 starts with priority 36 */
rtems_task Task01(rtems_task_argument ignored)
{
rtems_status_code status;
printf("TA01: started with priority %d\n", getprio());
status = rtems_semaphore_obtain( sem_id[0], RTEMS_WAIT, 0 );
directive_failed( status, "rtems_semaphore_obtain of S0\n");
printf("TA01: priority %d, holding S0\n", getprio());
status = rtems_semaphore_obtain( sem_id[1], RTEMS_WAIT, 0 );
directive_failed( status, "rtems_semaphore_obtain of S1");
printf("TA01: priority %d, holding S0, S1\n", getprio());
/* Start Task 2 (TA02) with priority 34. It will run immediately. */
status = rtems_task_start( Task_id[1], Task02, 0);
directive_failed( status, "rtems_task_start of TA02\n");
/* Start Task 3 (TA03) with priority 32. It will run immediately. */
status = rtems_task_start( Task_id[2], Task03, 0);
directive_failed( status, "rtems_task_start of TA03\n");
printf("TA01: priority %d, holding S0, S1\n", getprio());
status = rtems_semaphore_release(sem_id[1]);
directive_failed( status, "rtems_semaphore_release of S1\n");
printf("TA01: priority %d, holding S0\n", getprio());
status = rtems_semaphore_release(sem_id[0]);
directive_failed( status, "rtems_semaphore_release of S0\n");
printf("TA01: priority %d\n", getprio());
printf("TA01: exiting\n");
TEST_END();
rtems_test_exit(0);
}
/* TA02 starts at Task02 with priority 34 */
rtems_task Task02(rtems_task_argument ignored)
{
rtems_status_code status;
printf("TA02: started with priority %d\n", getprio());
/* Obtain S1, which should be held by TA01 by now */
status = rtems_semaphore_obtain( sem_id[1], RTEMS_WAIT, 0 );
directive_failed( status, " rtems_semaphore_obtain S1");
printf("TA02: priority %d, holding S1\n", getprio());
printf("TA02: exiting\n");
status = rtems_task_delete( RTEMS_SELF);
directive_failed( status, "rtems_task_delete TA02");
}
/* Task03 starts with priority 32 */
rtems_task Task03(rtems_task_argument ignored)
{
rtems_status_code status;
printf("TA03: started with priority %d\n", getprio());
status = rtems_semaphore_obtain( sem_id[0], RTEMS_WAIT, 0 );
directive_failed( status, "rtems_semaphore_obtain of S0\n");
printf("TA03: priority %d, holding S0\n", getprio());
status = rtems_semaphore_release(sem_id[0]);
directive_failed( status, "rtems_semaphore_release of S0\n");
printf("TA03: priority %d\n", getprio());
printf("TA03: exiting\n");
status = rtems_task_delete( RTEMS_SELF);
directive_failed( status, "rtems_task_delete TA03");
}