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Add xTaskGetApplicationTaskTagFromISR(), which is an interrupt safe version of xTaskGetApplicationTaskTagFrom().

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This commit is contained in:
Richard Barry 2018-10-08 15:10:18 +00:00
parent 1af80854e6
commit 6fab2b9e0d
7 changed files with 72 additions and 12 deletions
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40
FreeRTOS/Source/tasks.c
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@ -2845,24 +2845,17 @@ BaseType_t xSwitchRequired = pdFALSE;
TaskHookFunction_t xTaskGetApplicationTaskTag( TaskHandle_t xTask )
{
TCB_t *xTCB;
TCB_t *pxTCB;
TaskHookFunction_t xReturn;
/* If xTask is NULL then we are setting our own task hook. */
if( xTask == NULL )
{
xTCB = ( TCB_t * ) pxCurrentTCB;
}
else
{
xTCB = xTask;
}
/* If xTask is NULL then set the calling task's hook. */
pxTCB = prvGetTCBFromHandle( xTask );
/* Save the hook function in the TCB. A critical section is required as
the value can be accessed from an interrupt. */
taskENTER_CRITICAL();
{
xReturn = xTCB->pxTaskTag;
xReturn = pxTCB->pxTaskTag;
}
taskEXIT_CRITICAL();
@ -2872,6 +2865,31 @@ BaseType_t xSwitchRequired = pdFALSE;
#endif /* configUSE_APPLICATION_TASK_TAG */
/*-----------------------------------------------------------*/
#if ( configUSE_APPLICATION_TASK_TAG == 1 )
TaskHookFunction_t xTaskGetApplicationTaskTagFromISR( TaskHandle_t xTask )
{
TCB_t *pxTCB;
TaskHookFunction_t xReturn;
UBaseType_t uxSavedInterruptStatus;
/* If xTask is NULL then set the calling task's hook. */
pxTCB = prvGetTCBFromHandle( xTask );
/* Save the hook function in the TCB. A critical section is required as
the value can be accessed from an interrupt. */
uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
{
xReturn = pxTCB->pxTaskTag;
}
portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
return xReturn;
}
#endif /* configUSE_APPLICATION_TASK_TAG */
/*-----------------------------------------------------------*/
#if ( configUSE_APPLICATION_TASK_TAG == 1 )
BaseType_t xTaskCallApplicationTaskHook( TaskHandle_t xTask, void *pvParameter )