forked from Imagelibrary/rtems
137 lines
3.0 KiB
C
137 lines
3.0 KiB
C
/*
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* Classic API Signal to Task from ISR
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*
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* COPYRIGHT (c) 1989-2007.
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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.com/license/LICENSE.
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*
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* $Id$
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*/
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#define TEST_INIT
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#include "system.h"
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volatile boolean case_hit;
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rtems_id main_task;
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rtems_id other_task;
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rtems_timer_service_routine test_event_from_isr(
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rtems_id timer,
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void *arg
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)
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{
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rtems_status_code status;
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if ( _Event_Sync_state == THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED ) {
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/*
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* This event send hits the critical section but sends to
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* another task so doesn't impact this critical section.
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*/
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rtems_event_send( other_task, 0x02 );
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/*
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* This event send hits the main task but doesn't satisfy
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* it's blocking condition so it will still block
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*/
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rtems_event_send( main_task, 0x02 );
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case_hit = TRUE;
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}
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status = rtems_event_send( main_task, 0x01 );
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}
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rtems_task Init(
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rtems_task_argument argument
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)
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{
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rtems_status_code status;
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rtems_id timer;
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rtems_event_set out;
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int i;
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int max;
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int iterations = 0;
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puts( "\n\n*** TEST 39 ***" );
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main_task = rtems_task_self();
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/*
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* Timer used in multiple ways
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*/
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status = rtems_timer_create( 1, &timer );
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directive_failed( status, "rtems_timer_create" );
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status = rtems_task_create(
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0xa5a5a5a5,
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1,
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RTEMS_MINIMUM_STACK_SIZE,
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RTEMS_DEFAULT_MODES,
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RTEMS_DEFAULT_ATTRIBUTES,
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&other_task
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);
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directive_failed( status, "rtems_task_create" );
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/*
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* Test Event send successful from ISR
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*/
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case_hit = FALSE;
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max = 1;
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while (1) {
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if ( case_hit )
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break;
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status = rtems_timer_fire_after( timer, 1, test_event_from_isr, NULL );
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directive_failed( status, "timer_fire_after failed" );
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for (i=0 ; i<max ; i++ )
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if ( _Event_Sync_state == THREAD_BLOCKING_OPERATION_SATISFIED )
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break;
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status = rtems_event_receive( 0x01, RTEMS_DEFAULT_OPTIONS, 0, &out );
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directive_failed( status, "rtems_event_receive" );
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if ( case_hit == TRUE )
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break;
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max += 2;
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}
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printf(
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"Event sent from ISR hitting synchronization point has %soccurred\n",
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(( case_hit == TRUE ) ? "" : "NOT ")
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);
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/*
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* Now try for a timeout case
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*/
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iterations = 0;
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case_hit = FALSE;
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max = 1;
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puts(
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"Run multiple times in attempt to hit event timeout synchronization point"
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);
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while (1) {
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for (i=0 ; i<max ; i++ )
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if ( _Event_Sync_state == THREAD_BLOCKING_OPERATION_SATISFIED )
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break;
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status = rtems_event_receive( 0x01, RTEMS_DEFAULT_OPTIONS, 1, &out );
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fatal_directive_status( status, RTEMS_TIMEOUT, "event_receive timeout" );
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if ( case_hit )
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break;
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if ( ++max > 1024 )
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max = 0;
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if ( ++iterations >= 0x1000 )
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break;
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}
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puts( "*** END OF TEST 39 ***" );
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rtems_test_exit( 0 );
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}
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