forked from Imagelibrary/rtems
128 lines
3.1 KiB
C
128 lines
3.1 KiB
C
/*
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* COPYRIGHT (c) 1989-2011.
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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 <stdio.h>
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#include <rtems.h>
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#include <rtems/error.h>
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static rtems_id taskId1;
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static rtems_id taskId2;
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rtems_interval ticksPerSecond;
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#include "system.h"
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static int
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isSuspended (rtems_id tid)
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{
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rtems_status_code sc;
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sc = rtems_task_is_suspended (tid);
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if (sc == RTEMS_ALREADY_SUSPENDED)
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return 1;
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if (sc != RTEMS_SUCCESSFUL)
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printf ("rtems_task_is_suspended: %s\n", rtems_status_text (sc));
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return 0;
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}
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static void
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subTask1 (rtems_task_argument arg)
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{
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rtems_status_code sc;
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rtems_task_wake_after (ticksPerSecond * 3);
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sc = rtems_event_send (taskId2, 1);
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if (sc != RTEMS_SUCCESSFUL) {
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printf ("subTask1 - Can't send event (%d)\n", sc);
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rtems_task_suspend (RTEMS_SELF);
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}
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rtems_task_wake_after (ticksPerSecond * 3);
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printf ("subTask1 - Event sent\n");
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rtems_task_suspend (RTEMS_SELF);
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printf ("subTask1 - Back to task 1\n");
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rtems_task_wake_after (ticksPerSecond * 3);
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rtems_task_suspend (RTEMS_SELF);
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}
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static void
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subTask2 (rtems_task_argument arg)
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{
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rtems_status_code sc;
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rtems_event_set ev;
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rtems_task_wake_after (ticksPerSecond * 1);
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sc = rtems_event_receive(
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1,
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RTEMS_WAIT|RTEMS_EVENT_ANY,
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RTEMS_NO_TIMEOUT,
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&ev
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);
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if (sc != RTEMS_SUCCESSFUL) {
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printf ("subTask2 - Can't receive event (%d)\n", sc);
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rtems_task_suspend (RTEMS_SELF);
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}
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printf ("subTask2 - Task 1 suspended? - should be 0: %d\n",
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isSuspended (taskId1));
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rtems_task_wake_after (ticksPerSecond * 4);
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printf ("subTask2 - Task 1 suspended? - should be 1: %d\n",
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isSuspended (taskId1));
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rtems_task_resume (taskId1);
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printf ("subTask2 - Task 1 suspended? - should be 0: %d\n",
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isSuspended (taskId1));
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rtems_task_wake_after (ticksPerSecond * 4);
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printf ("subTask2 - Task 1 suspended? - should be 1: %d\n",
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isSuspended (taskId1));
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puts( "*** END OF TEST 26 ***" );
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rtems_test_exit( 0 );
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}
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static void
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createTask (char c, rtems_id *tid)
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{
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rtems_status_code sc;
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sc = rtems_task_create (rtems_build_name('S','u','b',c),
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RTEMS_MAXIMUM_PRIORITY - 1u,
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RTEMS_MINIMUM_STACK_SIZE * 4,
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RTEMS_PREEMPT|RTEMS_NO_TIMESLICE|RTEMS_NO_ASR|RTEMS_INTERRUPT_LEVEL(0),
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RTEMS_NO_FLOATING_POINT|RTEMS_LOCAL,
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tid);
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if (sc != RTEMS_SUCCESSFUL) {
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printf ("Can't create task (%d)\n", sc);
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rtems_task_suspend (RTEMS_SELF);
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}
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}
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static void
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startTask (rtems_id tid, rtems_task_entry entry_point)
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{
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rtems_status_code sc;
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sc = rtems_task_start (tid, entry_point, 0);
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if (sc != RTEMS_SUCCESSFUL) {
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printf ("Can't start task (%d)\n", sc);
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rtems_task_suspend (RTEMS_SELF);
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}
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}
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void
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task1 (void)
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{
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ticksPerSecond = rtems_clock_get_ticks_per_second();
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createTask ('1', &taskId1);
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createTask ('2', &taskId2);
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startTask (taskId1, subTask1);
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startTask (taskId2, subTask2);
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rtems_task_suspend (RTEMS_SELF);
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}
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