static void prvCheckTask( void *pvParameters )
{
TickType_t xDelayPeriod = mainNO_ERROR_CHECK_TASK_PERIOD;
TickType_t xLastExecutionTime;
static unsigned long ulLastRegTest1Value = 0, ulLastRegTest2Value = 0;
unsigned long ulErrorFound = pdFALSE;
/* Just to stop compiler warnings. */
( void ) pvParameters;
/* Initialise xLastExecutionTime so the first call to vTaskDelayUntil()
works correctly. */
xLastExecutionTime = xTaskGetTickCount();
/* Cycle for ever, delaying then checking all the other tasks are still
operating without error. The onboard LED is toggled on each iteration.
If an error is detected then the delay period is decreased from
mainNO_ERROR_CHECK_TASK_PERIOD to mainERROR_CHECK_TASK_PERIOD. This has the
effect of increasing the rate at which the onboard LED toggles, and in so
doing gives visual feedback of the system status. */
for( ;; )
{
/* Delay until it is time to execute again. */
vTaskDelayUntil( &xLastExecutionTime, xDelayPeriod );
/* Check all the demo tasks (other than the flash tasks) to ensure
that they are all still running, and that none have detected an error. */
if( xAreIntQueueTasksStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 0UL;
}
if( xAreMathsTaskStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 1UL;
}
if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 2UL;
}
if( xAreBlockingQueuesStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 3UL;
}
if ( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 4UL;
}
if ( xAreGenericQueueTasksStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 5UL;
}
if ( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 6UL;
}
if( xIsCreateTaskStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 7UL;
}
if( xAreSemaphoreTasksStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 8UL;
}
if( xAreTimerDemoTasksStillRunning( ( TickType_t ) xDelayPeriod ) != pdPASS )
{
ulErrorFound = 1UL << 9UL;
}
if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
{
ulErrorFound = 1UL << 10UL;
}
if( xIsQueueOverwriteTaskStillRunning() != pdPASS )
{
ulErrorFound = 1UL << 11UL;
}
if( xAreEventGroupTasksStillRunning() != pdPASS )
{
ulErrorFound = 1UL << 12UL;
}
if( xAreInterruptSemaphoreTasksStillRunning() != pdPASS )
{
ulErrorFound = 1UL << 13UL;
}
if( xAreQueueSetTasksStillRunning() != pdPASS )
{
ulErrorFound = 1UL << 14UL;
}
if( xAreTaskNotificationTasksStillRunning() != pdPASS )
{
ulErrorFound = 1UL << 15UL;
}
/* Check that the register test 1 task is still running. */
if( ulLastRegTest1Value == ulRegTest1LoopCounter )
{
ulErrorFound = 1UL << 16UL;
}
ulLastRegTest1Value = ulRegTest1LoopCounter;
/* Check that the register test 2 task is still running. */
if( ulLastRegTest2Value == ulRegTest2LoopCounter )
{
ulErrorFound = 1UL << 17UL;
}
ulLastRegTest2Value = ulRegTest2LoopCounter;
/* Toggle the check LED to give an indication of the system status. If
the LED toggles every mainNO_ERROR_CHECK_TASK_PERIOD milliseconds then
everything is ok. A faster toggle indicates an error. */
mainTOGGLE_LED();
if( ulErrorFound != pdFALSE )
{
/* An error has been detected in one of the tasks - flash the LED
at a higher frequency to give visible feedback that something has
gone wrong. */
xDelayPeriod = mainERROR_CHECK_TASK_PERIOD;
}
}
}
static void prvCheckTimerCallback( TimerHandle_t xTimer )
{
static long lChangedTimerPeriodAlready = pdFALSE;
static unsigned long ulLastRegTest1Value = 0, ulLastRegTest2Value = 0;
unsigned long ulErrorOccurred = pdFALSE;
/* Avoid compiler warnings. */
( void ) xTimer;
/* Have any of the standard demo tasks detected an error in their
operation? */
if( xAreGenericQueueTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 3UL );
}
else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 4UL );
}
else if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 5UL );
}
else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 6UL );
}
else if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 8UL );
}
else if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 9UL );
}
else if( xIsQueueOverwriteTaskStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 10UL );
}
else if( xAreQueueSetTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 11UL );
}
else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 12UL );
}
else if( xAreEventGroupTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 13UL );
}
else if( xAreTaskNotificationTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 14UL );
}
else if( xAreInterruptSemaphoreTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= ( 0x01UL << 15UL );
}
else if( xAreTimerDemoTasksStillRunning( mainCHECK_TIMER_PERIOD_MS ) != pdTRUE )
{
ulErrorOccurred |= 1UL << 16UL;
}
else if( xAreIntQueueTasksStillRunning() != pdTRUE )
{
ulErrorOccurred |= 1UL << 17UL;
}
/* Check that the register test 1 task is still running. */
if( ulLastRegTest1Value == ulRegTest1LoopCounter )
{
ulErrorOccurred |= 1UL << 18UL;
}
ulLastRegTest1Value = ulRegTest1LoopCounter;
/* Check that the register test 2 task is still running. */
if( ulLastRegTest2Value == ulRegTest2LoopCounter )
{
ulErrorOccurred |= 1UL << 19UL;
}
ulLastRegTest2Value = ulRegTest2LoopCounter;
if( ulErrorOccurred != pdFALSE )
{
/* An error occurred. Increase the frequency at which the check timer
toggles its LED to give visual feedback of the potential error
condition. */
if( lChangedTimerPeriodAlready == pdFALSE )
{
lChangedTimerPeriodAlready = pdTRUE;
/* This call to xTimerChangePeriod() uses a zero block time.
Functions called from inside of a timer callback function must
*never* attempt to block as to do so could impact other software
timers. */
xTimerChangePeriod( xTimer, ( mainERROR_CHECK_TIMER_PERIOD_MS ), mainDONT_BLOCK );
}
}
/* Toggle the LED to give visual feedback of the system status. The rate at
which the LED toggles will increase to mainERROR_CHECK_TIMER_PERIOD_MS if a
suspected error has been found in any of the standard demo tasks. */
vParTestToggleLED( mainCHECK_LED );
}
static void prvCheckTask( void *pvParameters )
{
TickType_t xNextWakeTime;
const TickType_t xCycleFrequency = pdMS_TO_TICKS( 2500UL );
/* Just to remove compiler warning. */
( void ) pvParameters;
/* Initialise xNextWakeTime - this only needs to be done once. */
xNextWakeTime = xTaskGetTickCount();
for( ;; )
{
/* Place this task in the blocked state until it is time to run again. */
vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );
/* Check the standard demo tasks are running without error. */
#if( configUSE_PREEMPTION != 0 )
{
/* These tasks are only created when preemption is used. */
if( xAreTimerDemoTasksStillRunning( xCycleFrequency ) != pdTRUE )
{
pcStatusMessage = "Error: TimerDemo";
}
}
#endif
if( xAreTaskNotificationTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: Notification";
}
if( xAreInterruptSemaphoreTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: IntSem";
}
else if( xAreEventGroupTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: EventGroup";
}
else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: IntMath";
}
else if( xAreGenericQueueTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: GenQueue";
}
else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: QueuePeek";
}
else if( xAreBlockingQueuesStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: BlockQueue";
}
else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: SemTest";
}
else if( xArePollingQueuesStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: PollQueue";
}
else if( xAreMathsTaskStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Flop";
}
else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: RecMutex";
}
else if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: CountSem";
}
else if( xIsCreateTaskStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: Death";
}
else if( xAreDynamicPriorityTasksStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Dynamic";
}
else if( xAreQueueSetTasksStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Queue set";
}
else if( xIsQueueOverwriteTaskStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Queue overwrite";
}
else if( xAreQueueSetPollTasksStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Queue set polling";
}
else if( xAreBlockTimeTestTasksStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Block time";
}
else if( xAreAbortDelayTestTasksStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Abort delay";
}
#if( configSUPPORT_STATIC_ALLOCATION == 1 )
else if( xAreStaticAllocationTasksStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Static allocation";
}
#endif /* configSUPPORT_STATIC_ALLOCATION */
/* This is the only task that uses stdout so its ok to call printf()
directly. */
printf( "%s - tick count %d - free heap %d - min free heap %d\r\n", pcStatusMessage,
xTaskGetTickCount(),
xPortGetFreeHeapSize(),
xPortGetMinimumEverFreeHeapSize() );
}
}
static void prvCheckTask( void *pvParameters )
{
TickType_t xNextWakeTime;
const TickType_t xCycleFrequency = 2500 / portTICK_PERIOD_MS;
/* Just to remove compiler warning. */
( void ) pvParameters;
/* Initialise xNextWakeTime - this only needs to be done once. */
xNextWakeTime = xTaskGetTickCount();
for( ;; )
{
/* Place this task in the blocked state until it is time to run again. */
vTaskDelayUntil( &xNextWakeTime, xCycleFrequency );
/* Check the standard demo tasks are running without error. */
#if( configUSE_PREEMPTION != 0 )
{
/* These tasks are only created when preemption is used. */
if( xAreTimerDemoTasksStillRunning( xCycleFrequency ) != pdTRUE )
{
pcStatusMessage = "Error: TimerDemo";
}
}
#endif
if( xAreTaskNotificationTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: Notification";
}
if( xAreInterruptSemaphoreTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: IntSem";
}
else if( xAreEventGroupTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: EventGroup";
}
else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: IntMath";
}
else if( xAreGenericQueueTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: GenQueue";
}
else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: QueuePeek";
}
else if( xAreBlockingQueuesStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: BlockQueue";
}
else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: SemTest";
}
else if( xArePollingQueuesStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: PollQueue";
}
else if( xAreMathsTaskStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Flop";
}
else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: RecMutex";
}
else if( xAreCountingSemaphoreTasksStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: CountSem";
}
else if( xIsCreateTaskStillRunning() != pdTRUE )
{
pcStatusMessage = "Error: Death";
}
else if( xAreDynamicPriorityTasksStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Dynamic";
}
else if( xAreQueueSetTasksStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Queue set";
}
else if( xIsQueueOverwriteTaskStillRunning() != pdPASS )
{
pcStatusMessage = "Error: Queue overwrite";
}
/* This is the only task that uses stdout so its ok to call printf()
directly. */
printf( ( char * ) "%s - %u\r\n", pcStatusMessage, ( unsigned int ) xTaskGetTickCount() );
fflush( stdout );
}
}
static void prvCheckTimerCallback( TimerHandle_t xTimer )
{
static long lChangedTimerPeriodAlready = pdFALSE;
unsigned long ulErrorFound = pdFALSE;
/* Check all the demo tasks (other than the flash tasks) to ensure
they are all still running, and that none have detected an error. */
if( xAreIntQueueTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 0UL;
}
if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 1UL;
}
if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 2UL;
}
if( xAreBlockingQueuesStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 3UL;
}
if ( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 4UL;
}
if ( xAreGenericQueueTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 5UL;
}
if ( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 6UL;
}
if( xIsCreateTaskStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 7UL;
}
if( xArePollingQueuesStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 8UL;
}
if( xAreSemaphoreTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 9UL;
}
if( xAreComTestTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 10UL;
}
if( xAreQueueSetTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 11UL;
}
if( xAreTaskNotificationTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 12UL;
}
if( xAreTimerDemoTasksStillRunning( mainCHECK_TIMER_PERIOD_MS ) != pdTRUE )
{
ulErrorFound |= 1UL << 13UL;
}
if( xAreEventGroupTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 14UL;
}
if( xAreInterruptSemaphoreTasksStillRunning() != pdTRUE )
{
ulErrorFound |= 1UL << 15UL;
}
/* Toggle the check LED to give an indication of the system status. If
the LED toggles every mainCHECK_TIMER_PERIOD_MS milliseconds then
everything is ok. A faster toggle indicates an error. */
vParTestToggleLED( mainCHECK_LED );
/* Have any errors been latch in ulErrorFound? If so, shorten the
period of the check timer to mainERROR_CHECK_TIMER_PERIOD_MS milliseconds.
This will result in an increase in the rate at which mainCHECK_LED
toggles. */
if( ulErrorFound != pdFALSE )
{
if( lChangedTimerPeriodAlready == pdFALSE )
{
lChangedTimerPeriodAlready = pdTRUE;
/* This call to xTimerChangePeriod() uses a zero block time.
Functions called from inside of a timer callback function must
*never* attempt to block. */
xTimerChangePeriod( xTimer, ( mainERROR_CHECK_TIMER_PERIOD_MS ), mainDONT_BLOCK );
}
}
}