Function xTimerCreateTimerTask

timers.c:223–273

/*-----------------------------------------------------------*/

    BaseType_t xTimerCreateTimerTask( void )
    {
        BaseType_t xReturn = pdFAIL;

        /* This function is called when the scheduler is started if
         * configUSE_TIMERS is set to 1.  Check that the infrastructure used by the
         * timer service task has been created/initialised.  If timers have already
         * been created then the initialisation will already have been performed. */
        prvCheckForValidListAndQueue();

        if( xTimerQueue != NULL )
        {
            #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
                {
                    StaticTask_t * pxTimerTaskTCBBuffer = NULL;
                    StackType_t * pxTimerTaskStackBuffer = NULL;
                    uint32_t ulTimerTaskStackSize;

                    vApplicationGetTimerTaskMemory( &pxTimerTaskTCBBuffer, &pxTimerTaskStackBuffer, &ulTimerTaskStackSize );
                    xTimerTaskHandle = xTaskCreateStatic( prvTimerTask,
                                                          configTIMER_SERVICE_TASK_NAME,
                                                          ulTimerTaskStackSize,
                                                          NULL,
                                                          ( ( UBaseType_t ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT,
                                                          pxTimerTaskStackBuffer,
                                                          pxTimerTaskTCBBuffer );

                    if( xTimerTaskHandle != NULL )
                    {
                        xReturn = pdPASS;
                    }
                }
            #else /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
                {
                    xReturn = xTaskCreate( prvTimerTask,
                                           configTIMER_SERVICE_TASK_NAME,
                                           configTIMER_TASK_STACK_DEPTH,
                                           NULL,
                                           ( ( UBaseType_t ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT,
                                           &xTimerTaskHandle );
                }
            #endif /* configSUPPORT_STATIC_ALLOCATION */
        }
        else
        {
            mtCOVERAGE_TEST_MARKER();
        }

        configASSERT( xReturn );
        return xReturn;
    }
/*-----------------------------------------------------------*/

    #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )