mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-08-01 08:54:14 -04:00
Core kernel code:
- Re-introduce the ability to give a mutex from an ISR. Common demo code: - Add additional tests into the GenQTest files for priority inheritance and using a mutex from an ISR.
This commit is contained in:
Richard Barry
parent
6507701fdf
commit
ff5d3512b3
13 changed files with 379 additions and 176 deletions
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@ -34,12 +34,12 @@
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<PreferedWindows><Position>2</Position><ScreenPosX>0</ScreenPosX><ScreenPosY>0</ScreenPosY><Windows/></PreferedWindows><ShowCodeCoverage>1</ShowCodeCoverage><ShowInstrProfiling>1</ShowInstrProfiling></Disassembly>
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@ -51,20 +51,20 @@
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@ -14,7 +14,7 @@ Watch0=_ 0 "" 0 "" 0 "" 0 "" 0 0 0 0
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Watch1=_ 0 "" 0 "" 0 "" 0 "" 0 0 0 0
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CStepIntDis=_ 0
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[DebugChecksum]
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Checksum=-666464609
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Checksum=-1280642381
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[Exceptions]
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StopOnUncaught=_ 0
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StopOnThrow=_ 0
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@ -42,7 +42,7 @@ Exclusions=
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[Disassemble mode]
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mode=0
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[Breakpoints2]
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Bp0=_ 1 "EMUL_CODE" "{$PROJ_DIR$\main.c}.218.24" 0 0 1 "" 0 "" 0
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Bp0=_ 1 "EMUL_CODE" "{$PROJ_DIR$\main.c}.221.2" 0 0 1 "" 0 "" 0
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Count=1
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[Aliases]
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Count=0
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@ -36,7 +36,7 @@
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<Windows>
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<Wnd1>
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<Tabs>
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<Identity>TabID-22351-19008</Identity>
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@ -48,7 +48,7 @@
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@ -58,20 +58,20 @@
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</Desktop>
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</Workspace>
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#define genqMUTEX_MEDIUM_PRIORITY ( tskIDLE_PRIORITY + 2 )
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#define genqMUTEX_HIGH_PRIORITY ( tskIDLE_PRIORITY + 3 )
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#define genqINTERRUPT_MUTEX_GIVE_PERIOD_MS ( 100 )
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/*-----------------------------------------------------------*/
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/*
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static void prvMediumPriorityMutexTask( void *pvParameters );
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static void prvHighPriorityMutexTask( void *pvParameters );
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/*
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* Exercises the priority inheritance when a task takes two mutexes, returning
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* them in a different order to which they were taken.
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*/
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static void prvTakeTwoMutexesReturnInDifferentOrder( SemaphoreHandle_t xMutex, SemaphoreHandle_t xLocalMutex );
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/*
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* Exercises the priority inheritance when a task takes two mutexes, returning
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* them in the same order in which they were taken.
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*/
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static void prvTakeTwoMutexesReturnInSameOrder( SemaphoreHandle_t xMutex, SemaphoreHandle_t xLocalMutex );
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/*
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* Task that receives an a mutex that is given from an interrupt - although
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* generally mutexes should not be used given in interrupts (and definitely
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* never taken in an interrupt) there are some circumstances when it may be
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* desirable. NOTE: This function is not declared static to prevent compiler
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* warnings being generated in demos where the function is declared but not
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* used.
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*/
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void vInterruptMutexTask( void *pvParameters );
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/*-----------------------------------------------------------*/
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/* Flag that will be latched to pdTRUE should any unexpected behaviour be
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priority mutex test tasks. */
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static TaskHandle_t xHighPriorityMutexTask, xMediumPriorityMutexTask;
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/* A mutex which is given from an interrupt - although generally mutexes should
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not be used given in interrupts (and definitely never taken in an interrupt)
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there are some circumstances when it may be desirable. */
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static SemaphoreHandle_t xISRMutex = NULL;
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/*-----------------------------------------------------------*/
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void vStartGenericQueueTasks( UBaseType_t uxPriority )
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@ -146,6 +174,9 @@ void vStartGenericQueueTasks( UBaseType_t uxPriority )
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QueueHandle_t xQueue;
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SemaphoreHandle_t xMutex;
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xISRMutex = xSemaphoreCreateMutex();
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configASSERT( xISRMutex );
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/* Create the queue that we are going to use for the
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prvSendFrontAndBackTest demo. */
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xQueue = xQueueCreate( genqQUEUE_LENGTH, sizeof( uint32_t ) );
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@ -180,6 +211,14 @@ SemaphoreHandle_t xMutex;
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xTaskCreate( prvLowPriorityMutexTask, "MuLow", configMINIMAL_STACK_SIZE, ( void * ) xMutex, genqMUTEX_LOW_PRIORITY, NULL );
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xTaskCreate( prvMediumPriorityMutexTask, "MuMed", configMINIMAL_STACK_SIZE, NULL, genqMUTEX_MEDIUM_PRIORITY, &xMediumPriorityMutexTask );
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xTaskCreate( prvHighPriorityMutexTask, "MuHigh", configMINIMAL_STACK_SIZE, ( void * ) xMutex, genqMUTEX_HIGH_PRIORITY, &xHighPriorityMutexTask );
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/* Only when the windows simulator is being used - create the task that
|
||||
receives a mutex from an interrupt. */
|
||||
#ifdef _WINDOWS_
|
||||
{
|
||||
xTaskCreate( vInterruptMutexTask, "IntMu", configMINIMAL_STACK_SIZE, NULL, genqMUTEX_MEDIUM_PRIORITY, NULL );
|
||||
}
|
||||
#endif /* __WINDOWS__ */
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
|
@ -411,6 +450,252 @@ QueueHandle_t xQueue;
|
|||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvTakeTwoMutexesReturnInDifferentOrder( SemaphoreHandle_t xMutex, SemaphoreHandle_t xLocalMutex )
|
||||
{
|
||||
/* Take the mutex. It should be available now. */
|
||||
if( xSemaphoreTake( xMutex, genqNO_BLOCK ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Set the guarded variable to a known start value. */
|
||||
ulGuardedVariable = 0;
|
||||
|
||||
/* This task's priority should be as per that assigned when the task was
|
||||
created. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_LOW_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now unsuspend the high priority task. This will attempt to take the
|
||||
mutex, and block when it finds it cannot obtain it. */
|
||||
vTaskResume( xHighPriorityMutexTask );
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* Ensure the task is reporting its priority as blocked and not
|
||||
suspended (as it would have done in versions up to V7.5.3). */
|
||||
#if( INCLUDE_eTaskGetState == 1 )
|
||||
{
|
||||
configASSERT( eTaskGetState( xHighPriorityMutexTask ) == eBlocked );
|
||||
}
|
||||
#endif /* INCLUDE_eTaskGetState */
|
||||
|
||||
/* The priority of the high priority task should now have been inherited
|
||||
as by now it will have attempted to get the mutex. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Attempt to set the priority of this task to the test priority -
|
||||
between the idle priority and the medium/high test priorities, but the
|
||||
actual priority should remain at the high priority. */
|
||||
vTaskPrioritySet( NULL, genqMUTEX_TEST_PRIORITY );
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now unsuspend the medium priority task. This should not run as the
|
||||
inherited priority of this task is above that of the medium priority
|
||||
task. */
|
||||
vTaskResume( xMediumPriorityMutexTask );
|
||||
|
||||
/* If the medium priority task did run then it will have incremented the
|
||||
guarded variable. */
|
||||
if( ulGuardedVariable != 0 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Take the local mutex too, so two mutexes are now held. */
|
||||
if( xSemaphoreTake( xLocalMutex, genqNO_BLOCK ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* When the semaphore is given back the priority of this task should not
|
||||
yet be disinherited because the local mutex is still held. This is a
|
||||
simplification to allow FreeRTOS to be integrated with middleware that
|
||||
attempts to hold multiple mutexes without bloating the code with complex
|
||||
algorithms. It is possible that the high priority mutex task will
|
||||
execute as it shares a priority with this task. */
|
||||
if( xSemaphoreGive( xMutex ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* The guarded variable is only incremented by the medium priority task,
|
||||
which still should not have executed as this task should remain at the
|
||||
higher priority, ensure this is the case. */
|
||||
if( ulGuardedVariable != 0 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now also give back the local mutex, taking the held count back to 0.
|
||||
This time the priority of this task should be disinherited back to the
|
||||
priority to which it was set while the mutex was held. This means
|
||||
the medium priority task should execute and increment the guarded
|
||||
variable. When this task next runs both the high and medium priority
|
||||
tasks will have been suspended again. */
|
||||
if( xSemaphoreGive( xLocalMutex ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* Check the guarded variable did indeed increment... */
|
||||
if( ulGuardedVariable != 1 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* ... and that the priority of this task has been disinherited to
|
||||
genqMUTEX_TEST_PRIORITY. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_TEST_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Set the priority of this task back to its original value, ready for
|
||||
the next loop around this test. */
|
||||
vTaskPrioritySet( NULL, genqMUTEX_LOW_PRIORITY );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvTakeTwoMutexesReturnInSameOrder( SemaphoreHandle_t xMutex, SemaphoreHandle_t xLocalMutex )
|
||||
{
|
||||
/* Take the mutex. It should be available now. */
|
||||
if( xSemaphoreTake( xMutex, genqNO_BLOCK ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Set the guarded variable to a known start value. */
|
||||
ulGuardedVariable = 0;
|
||||
|
||||
/* This task's priority should be as per that assigned when the task was
|
||||
created. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_LOW_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now unsuspend the high priority task. This will attempt to take the
|
||||
mutex, and block when it finds it cannot obtain it. */
|
||||
vTaskResume( xHighPriorityMutexTask );
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* Ensure the task is reporting its priority as blocked and not
|
||||
suspended (as it would have done in versions up to V7.5.3). */
|
||||
#if( INCLUDE_eTaskGetState == 1 )
|
||||
{
|
||||
configASSERT( eTaskGetState( xHighPriorityMutexTask ) == eBlocked );
|
||||
}
|
||||
#endif /* INCLUDE_eTaskGetState */
|
||||
|
||||
/* The priority of the high priority task should now have been inherited
|
||||
as by now it will have attempted to get the mutex. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now unsuspend the medium priority task. This should not run as the
|
||||
inherited priority of this task is above that of the medium priority
|
||||
task. */
|
||||
vTaskResume( xMediumPriorityMutexTask );
|
||||
|
||||
/* If the medium priority task did run then it will have incremented the
|
||||
guarded variable. */
|
||||
if( ulGuardedVariable != 0 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Take the local mutex too, so two mutexes are now held. */
|
||||
if( xSemaphoreTake( xLocalMutex, genqNO_BLOCK ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* When the local semaphore is given back the priority of this task should
|
||||
not yet be disinherited because the shared mutex is still held. This is a
|
||||
simplification to allow FreeRTOS to be integrated with middleware that
|
||||
attempts to hold multiple mutexes without bloating the code with complex
|
||||
algorithms. It is possible that the high priority mutex task will
|
||||
execute as it shares a priority with this task. */
|
||||
if( xSemaphoreGive( xLocalMutex ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* The guarded variable is only incremented by the medium priority task,
|
||||
which still should not have executed as this task should remain at the
|
||||
higher priority, ensure this is the case. */
|
||||
if( ulGuardedVariable != 0 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now also give back the shared mutex, taking the held count back to 0.
|
||||
This time the priority of this task should be disinherited back to the
|
||||
priority at which it was created. This means the medium priority task
|
||||
should execute and increment the guarded variable. When this task next runs
|
||||
both the high and medium priority tasks will have been suspended again. */
|
||||
if( xSemaphoreGive( xMutex ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* Check the guarded variable did indeed increment... */
|
||||
if( ulGuardedVariable != 1 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* ... and that the priority of this task has been disinherited to
|
||||
genqMUTEX_LOW_PRIORITY. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_LOW_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvLowPriorityMutexTask( void *pvParameters )
|
||||
{
|
||||
SemaphoreHandle_t xMutex = ( SemaphoreHandle_t ) pvParameters, xLocalMutex;
|
||||
|
|
@ -430,131 +715,21 @@ SemaphoreHandle_t xMutex = ( SemaphoreHandle_t ) pvParameters, xLocalMutex;
|
|||
|
||||
for( ;; )
|
||||
{
|
||||
/* Take the mutex. It should be available now. */
|
||||
if( xSemaphoreTake( xMutex, genqNO_BLOCK ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
/* The first tests exercise the priority inheritance when two mutexes
|
||||
are taken then returned in a different order to which they were
|
||||
taken. */
|
||||
prvTakeTwoMutexesReturnInDifferentOrder( xMutex, xLocalMutex );
|
||||
|
||||
/* Set the guarded variable to a known start value. */
|
||||
ulGuardedVariable = 0;
|
||||
|
||||
/* This task's priority should be as per that assigned when the task was
|
||||
created. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_LOW_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now unsuspend the high priority task. This will attempt to take the
|
||||
mutex, and block when it finds it cannot obtain it. */
|
||||
vTaskResume( xHighPriorityMutexTask );
|
||||
/* Just to show this task is still running. */
|
||||
ulLoopCounter2++;
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* Ensure the task is reporting its priority as blocked and not
|
||||
suspended (as it would have done in versions up to V7.5.3). */
|
||||
#if( INCLUDE_eTaskGetState == 1 )
|
||||
{
|
||||
configASSERT( eTaskGetState( xHighPriorityMutexTask ) == eBlocked );
|
||||
}
|
||||
#endif /* INCLUDE_eTaskGetState */
|
||||
|
||||
/* The priority of the high priority task should now have been inherited
|
||||
as by now it will have attempted to get the mutex. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Attempt to set the priority of this task to the test priority -
|
||||
between the idle priority and the medium/high test priorities, but the
|
||||
actual priority should remain at the high priority. */
|
||||
vTaskPrioritySet( NULL, genqMUTEX_TEST_PRIORITY );
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now unsuspend the medium priority task. This should not run as the
|
||||
inherited priority of this task is above that of the medium priority
|
||||
task. */
|
||||
vTaskResume( xMediumPriorityMutexTask );
|
||||
|
||||
/* If the medium priority task did run then it will have incremented the
|
||||
guarded variable. */
|
||||
if( ulGuardedVariable != 0 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Take the local mutex too, so two mutexes are now held. */
|
||||
if( xSemaphoreTake( xLocalMutex, genqNO_BLOCK ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* When the semaphore is given back the priority of this task should not
|
||||
yet be disinherited because the local mutex is still held. This is a
|
||||
simplification to allow FreeRTOS to be integrated with middleware that
|
||||
attempts to hold multiple mutexes without bloating the code with complex
|
||||
algorithms. It is possible that the high priority mutex task will
|
||||
execute as it shares a priority with this task. */
|
||||
if( xSemaphoreGive( xMutex ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* The guarded variable is only incremented by the medium priority task,
|
||||
which still should not have executed as this task should remain at the
|
||||
higher priority, ensure this is the case. */
|
||||
if( ulGuardedVariable != 0 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_HIGH_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Now also give back the local mutex, taking the held count back to 0.
|
||||
This time the priority of this task should be disinherited back to the
|
||||
priority to which it was set while the mutex was held. This means
|
||||
the medium priority task should execute and increment the guarded
|
||||
variable. When this task next runs both the high and medium priority
|
||||
tasks will have been suspended again. */
|
||||
if( xSemaphoreGive( xLocalMutex ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
taskYIELD();
|
||||
#endif
|
||||
|
||||
/* Check the guarded variable did indeed increment... */
|
||||
if( ulGuardedVariable != 1 )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* ... and that the priority of this task has been disinherited to
|
||||
genqMUTEX_TEST_PRIORITY. */
|
||||
if( uxTaskPriorityGet( NULL ) != genqMUTEX_TEST_PRIORITY )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
|
||||
/* Set the priority of this task back to its original value, ready for
|
||||
the next loop around this test. */
|
||||
vTaskPrioritySet( NULL, genqMUTEX_LOW_PRIORITY );
|
||||
/* The second tests exercise the priority inheritance when two mutexes
|
||||
are taken then returned in the same order in which they were taken. */
|
||||
prvTakeTwoMutexesReturnInSameOrder( xMutex, xLocalMutex );
|
||||
|
||||
/* Just to show this task is still running. */
|
||||
ulLoopCounter2++;
|
||||
|
|
@ -612,12 +787,53 @@ SemaphoreHandle_t xMutex = ( SemaphoreHandle_t ) pvParameters;
|
|||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* NOTE: This function is not declared static to prevent compiler warnings in
|
||||
demos where the function is declared but not used. */
|
||||
void vInterruptMutexTask( void *pvParameters )
|
||||
{
|
||||
const TickType_t xInterruptGivePeriod = pdMS_TO_TICKS( genqINTERRUPT_MUTEX_GIVE_PERIOD_MS );
|
||||
volatile uint32_t ulLoops = 0;
|
||||
|
||||
/* Just to avoid compiler warnings. */
|
||||
( void ) pvParameters;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
/* Has to wait longer than the time between gives to make sure it
|
||||
should definitely have received the mutex. */
|
||||
if( xSemaphoreTake( xISRMutex, ( xInterruptGivePeriod * 2 ) ) != pdPASS )
|
||||
{
|
||||
xErrorDetected = pdTRUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
ulLoops++;
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vMutexISRInteractionTest( void )
|
||||
{
|
||||
static TickType_t xLastGiveTime = 0;
|
||||
TickType_t xTimeNow;
|
||||
|
||||
xTimeNow = xTaskGetTickCountFromISR();
|
||||
if( ( xTimeNow - xLastGiveTime ) >= pdMS_TO_TICKS( genqINTERRUPT_MUTEX_GIVE_PERIOD_MS ) )
|
||||
{
|
||||
configASSERT( xISRMutex );
|
||||
xSemaphoreGiveFromISR( xISRMutex, NULL );
|
||||
xLastGiveTime = xTimeNow;
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* This is called to check that all the created tasks are still running. */
|
||||
BaseType_t xAreGenericQueueTasksStillRunning( void )
|
||||
{
|
||||
static uint32_t ulLastLoopCounter = 0, ulLastLoopCounter2 = 0;
|
||||
|
||||
/* If the demo task is still running then we expect the loopcounters to
|
||||
/* If the demo task is still running then we expect the loop counters to
|
||||
have incremented since this function was last called. */
|
||||
if( ulLastLoopCounter == ulLoopCounter )
|
||||
{
|
||||
|
|
|
|||
|
|
@ -741,7 +741,12 @@ static TickType_t uxTick = ( TickType_t ) -1;
|
|||
as well as late timer expiries. */
|
||||
const TickType_t xMargin = 6;
|
||||
#else
|
||||
const TickType_t xMargin = 3;
|
||||
#ifdef _WINDOWS_
|
||||
/* Windows is not real real time. */
|
||||
const TickType_t xMargin = 8;
|
||||
#else
|
||||
const TickType_t xMargin = 4;
|
||||
#endif /* _WINDOWS_ */
|
||||
#endif
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
FreeRTOS V8.1.0 - Copyright (C) 2014 Real Time Engineers Ltd.
|
||||
FreeRTOS V8.1.0 - Copyright (C) 2014 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
|
@ -68,6 +68,7 @@
|
|||
|
||||
void vStartGenericQueueTasks( UBaseType_t uxPriority );
|
||||
BaseType_t xAreGenericQueueTasksStillRunning( void );
|
||||
void vMutexISRInteractionTest( void );
|
||||
|
||||
#endif /* GEN_Q_TEST_H */
|
||||
|
||||
|
|
|
|||
|
|
@ -297,7 +297,7 @@ volatile uint32_t ulSetToNonZeroInDebuggerToContinue = 0;
|
|||
( void ) ulLine;
|
||||
( void ) pcFileName;
|
||||
|
||||
taskENTER_CRITICAL();
|
||||
taskENTER_CRITICAL();
|
||||
{
|
||||
/* Stop the trace recording. */
|
||||
if( xPrinted == pdFALSE )
|
||||
|
|
|
|||
|
|
@ -162,7 +162,7 @@ static void prvTestTask( void *pvParameters );
|
|||
static void prvDemonstrateTaskStateAndHandleGetFunctions( void );
|
||||
|
||||
/*
|
||||
* Called from the idle task hook function to demonstrate the use of
|
||||
* Called from the idle task hook function to demonstrate the use of
|
||||
* xTimerPendFunctionCall() as xTimerPendFunctionCall() is not demonstrated by
|
||||
* any of the standard demo tasks.
|
||||
*/
|
||||
|
|
@ -401,6 +401,9 @@ void vFullDemoTickHookFunction( void )
|
|||
|
||||
/* Exercise event groups from interrupts. */
|
||||
vPeriodicEventGroupsProcessing();
|
||||
|
||||
/* Exercise giving mutexes from an interrupt. */
|
||||
vMutexISRInteractionTest();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue