Function prvCheckDelayedList

croutine.c:223–279

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

    static void prvCheckDelayedList( void )
    {
        CRCB_t * pxCRCB;

        xPassedTicks = xTaskGetTickCount() - xLastTickCount;

        while( xPassedTicks )
        {
            xCoRoutineTickCount++;
            xPassedTicks--;

            /* If the tick count has overflowed we need to swap the ready lists. */
            if( xCoRoutineTickCount == 0 )
            {
                List_t * pxTemp;

                /* Tick count has overflowed so we need to swap the delay lists.  If there are
                 * any items in pxDelayedCoRoutineList here then there is an error! */
                pxTemp = pxDelayedCoRoutineList;
                pxDelayedCoRoutineList = pxOverflowDelayedCoRoutineList;
                pxOverflowDelayedCoRoutineList = pxTemp;
            }

            /* See if this tick has made a timeout expire. */
            while( listLIST_IS_EMPTY( pxDelayedCoRoutineList ) == pdFALSE )
            {
                pxCRCB = ( CRCB_t * ) listGET_OWNER_OF_HEAD_ENTRY( pxDelayedCoRoutineList );

                if( xCoRoutineTickCount < listGET_LIST_ITEM_VALUE( &( pxCRCB->xGenericListItem ) ) )
                {
                    /* Timeout not yet expired. */
                    break;
                }

                portDISABLE_INTERRUPTS();
                {
                    /* The event could have occurred just before this critical
                     *  section.  If this is the case then the generic list item will
                     *  have been moved to the pending ready list and the following
                     *  line is still valid.  Also the pvContainer parameter will have
                     *  been set to NULL so the following lines are also valid. */
                    ( void ) uxListRemove( &( pxCRCB->xGenericListItem ) );

                    /* Is the co-routine waiting on an event also? */
                    if( pxCRCB->xEventListItem.pxContainer )
                    {
                        ( void ) uxListRemove( &( pxCRCB->xEventListItem ) );
                    }
                }
                portENABLE_INTERRUPTS();

                prvAddCoRoutineToReadyQueue( pxCRCB );
            }
        }

        xLastTickCount = xCoRoutineTickCount;
    }
/*-----------------------------------------------------------*/