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Demo/Common: fix divide by zero possibility and non-used return values (#1370)

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* Demo/Common: fix divide by zero possibility and non-used return values

- In TimerDemo.c fix possible divide by zero in
  "xMaxBlockTimeUsedByTheseTests / xCycleFrequency".
- Move this code in TimerDemo.c into if-clause where it is
  actually used.
- In Minimal/StreamBufferDemo.c and Minimal/TaskNotify.c avoid
  unused return values.

Signed-off-by: Florian La Roche <Florian.LaRoche@gmail.com>
Co-authored-by: Kody Stribrny <kstribrn@amazon.com>
This commit is contained in:
Florian La Roche 2025-08-29 20:54:32 +02:00 • committed by GitHub
parent e933faf3ee
commit 62195136d1
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3 changed files with 12 additions and 9 deletions
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2
FreeRTOS/Demo/Common/Minimal/StreamBufferDemo.c
View file

@ -560,7 +560,7 @@ static void prvSingleTaskTests( StreamBufferHandle_t xStreamBuffer )
/* Ensure data was written as expected even when there was an attempt to
* write more than was available. This also tries to read more bytes than are
* available. */
xReturned = xStreamBufferReceive( xStreamBuffer, ( void * ) pucFullBuffer, xFullBufferSize, xMinimalBlockTime );
xStreamBufferReceive( xStreamBuffer, ( void * ) pucFullBuffer, xFullBufferSize, xMinimalBlockTime );
prvCheckExpectedState( memcmp( ( const void * ) pucFullBuffer, ( const void * ) pc54ByteString, sbSTREAM_BUFFER_LENGTH_BYTES ) == 0 );
prvCheckExpectedState( xStreamBufferIsFull( xStreamBuffer ) == pdFALSE );
prvCheckExpectedState( xStreamBufferIsEmpty( xStreamBuffer ) == pdTRUE );

1
FreeRTOS/Demo/Common/Minimal/TaskNotify.c
View file

@ -242,6 +242,7 @@ static void prvSingleTaskTests( void )
configASSERT( xReturned == pdPASS );
( void ) xReturned; /* In case configASSERT() is not defined. */
xReturned = xTaskNotifyWait( notifyUINT32_MAX, 0, &ulNotifiedValue, 0 );
configASSERT( xReturned == pdPASS );
configASSERT( ulNotifiedValue == ulSecondNotifiedValueConst );
( void ) ulNotifiedValue; /* In case configASSERT() is not defined. */

18
FreeRTOS/Demo/Common/Minimal/TimerDemo.c
View file

@ -230,8 +230,10 @@ static void prvTimerTestTask( void * pvParameters )
BaseType_t xAreTimerDemoTasksStillRunning( TickType_t xCycleFrequency )
{
static uint32_t ulLastLoopCounter = 0UL;
TickType_t xMaxBlockTimeUsedByTheseTests, xLoopCounterIncrementTimeMax;
static TickType_t xIterationsWithoutCounterIncrement = ( TickType_t ) 0, xLastCycleFrequency;
TickType_t xMaxBlockTimeUsedByTheseTests, xLoopCounterIncrementTimeMax;
configASSERT( xCycleFrequency != 0UL );
if( xLastCycleFrequency != xCycleFrequency )
{
@ -241,17 +243,17 @@ BaseType_t xAreTimerDemoTasksStillRunning( TickType_t xCycleFrequency )
xLastCycleFrequency = xCycleFrequency;
}
/* Calculate the maximum number of times that it is permissible for this
* function to be called without ulLoopCounter being incremented. This is
* necessary because the tests in this file block for extended periods, and the
* block period might be longer than the time between calls to this function. */
xMaxBlockTimeUsedByTheseTests = ( ( TickType_t ) configTIMER_QUEUE_LENGTH ) * xBasePeriod;
xLoopCounterIncrementTimeMax = ( xMaxBlockTimeUsedByTheseTests / xCycleFrequency ) + 1;
/* If the demo task is still running then the loop counter is expected to
* have incremented every xLoopCounterIncrementTimeMax calls. */
if( ulLastLoopCounter == ulLoopCounter )
{
/* Calculate the maximum number of times that it is permissible for this
* function to be called without ulLoopCounter being incremented. This is
* necessary because the tests in this file block for extended periods, and the
* block period might be longer than the time between calls to this function. */
xMaxBlockTimeUsedByTheseTests = ( ( TickType_t ) configTIMER_QUEUE_LENGTH ) * xBasePeriod;
xLoopCounterIncrementTimeMax = ( xMaxBlockTimeUsedByTheseTests / xCycleFrequency ) + 1;
xIterationsWithoutCounterIncrement++;
if( xIterationsWithoutCounterIncrement > xLoopCounterIncrementTimeMax )