/*
* Classic API Signal to Task from ISR
*
* COPYRIGHT (c) 1989-2011.
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define TEST_INIT
#define CONFIGURE_INIT
#include "system.h"
#include <intrcritical.h>
#include <rtems/score/threadimpl.h>
#include <rtems/rtems/eventimpl.h>
const char rtems_test_name[] = "SPINTRCRITICAL 21";
/*
* ERROR CHECKING NOTE:
*
* We are either at dispatch disable level 1 or 2. Either way, it is
* safer not to check the dispatch level explicitly so we are using
* fatal_directive_check_status_only() not directive_failed().
*/
static volatile bool case_hit;
static rtems_id main_task;
static Thread_Control *main_thread;
static rtems_id other_task;
static bool is_case_hit( void )
{
return _Thread_Wait_flags_get( main_thread)
== ( THREAD_WAIT_CLASS_EVENT | THREAD_WAIT_STATE_INTEND_TO_BLOCK );
}
static rtems_timer_service_routine test_event_from_isr(
rtems_id timer,
void *arg
)
{
rtems_status_code status;
if ( is_case_hit() ) {
/*
* This event send hits the critical section but sends to
* another task so doesn't impact this critical section.
*/
status = rtems_event_send( other_task, 0x02 );
fatal_directive_check_status_only( status, RTEMS_SUCCESSFUL, "event send" );
/*
* This event send hits the main task but doesn't satisfy
* it's blocking condition so it will still block
*/
status = rtems_event_send( main_task, 0x02 );
fatal_directive_check_status_only( status, RTEMS_SUCCESSFUL, "event send" );
case_hit = true;
}
status = rtems_event_send( main_task, 0x01 );
fatal_directive_check_status_only( status, RTEMS_SUCCESSFUL, "event send" );
}
static bool test_body_event_from_isr( void *arg )
{
rtems_status_code status;
rtems_event_set out;
(void) arg;
status = rtems_event_receive( 0x01, RTEMS_DEFAULT_OPTIONS, 0, &out );
rtems_test_assert( status == RTEMS_SUCCESSFUL );
return case_hit;
}
static rtems_timer_service_routine test_event_with_timeout_from_isr(
rtems_id timer,
void *arg
)
{
rtems_status_code status;
if ( is_case_hit() ) {
/*
* We want to catch the task while it is blocking. Otherwise
* just send and make it happy.
*/
case_hit = true;
}
status = rtems_event_send( main_task, 0x01 );
fatal_directive_check_status_only( status, RTEMS_SUCCESSFUL, "event send" );
}
static bool test_body_event_with_timeout_from_isr( void *arg )
{
rtems_status_code status;
rtems_event_set out;
(void) arg;
status = rtems_event_receive( 0x01, RTEMS_DEFAULT_OPTIONS, 1, &out );
rtems_test_assert( status == RTEMS_SUCCESSFUL || status == RTEMS_TIMEOUT );
return case_hit;
}
rtems_task Init(
rtems_task_argument argument
)
{
rtems_status_code status;
TEST_BEGIN();
main_task = rtems_task_self();
main_thread = _Thread_Get_executing();
status = rtems_task_create(
0xa5a5a5a5,
1,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&other_task
);
directive_failed( status, "rtems_task_create" );
/*
* Test Event send successful from ISR -- receive is forever
*/
case_hit = false;
interrupt_critical_section_test(
test_body_event_from_isr,
NULL,
test_event_from_isr
);
printf(
"Event sent from ISR hitting synchronization point has %soccurred\n",
case_hit ? "" : "NOT "
);
rtems_test_assert( case_hit );
/*
* Test Event send successful from ISR -- receive has timeout
*/
case_hit = false;
interrupt_critical_section_test(
test_body_event_with_timeout_from_isr,
NULL,
test_event_with_timeout_from_isr
);
printf(
"Event sent from ISR (with timeout) hitting synchronization "
"point has %soccurred\n",
case_hit ? "" : "NOT "
);
rtems_test_assert( case_hit );
TEST_END();
rtems_test_exit( 0 );
}