Ejemplo n.º 1
0
/* |------------------+-------------------------------------------------------------| */
StatusType ChainTask ( TaskType TaskID )
{
	StatusType ercd = E_NOT_OK;
	TCB * tcb;
	TSTAT state;

	OS_CHECK((TaskID<cfgOSEK_TASK_NUM),E_OS_ID);
    OS_CHECK_EXT(!in_indp(),E_OS_CALLEVEL);
	OS_CHECK_EXT(isQueEmpty(&knl_ctxtsk->resque),E_OS_RESOURCE);
	DISABLE_INTERRUPT;
    if(TaskID == knl_ctxtsk->tskid){
        /* chain to itself */
        knl_search_schedtsk();
        knl_make_active(knl_ctxtsk);
    }
    else{
        /* firstly terminate current running task knl_ctxtsk,
         * and then activate TaskID */
      	tcb = &knl_tcb_table[TaskID];
        state = (TSTAT)tcb->state;
    	if (TS_DORMANT != state) {
    	    #if((cfgOS_CONFORMANCE_CLASS == ECC2) || (cfgOS_CONFORMANCE_CLASS == BCC2))
    	    if(tcb->actcnt < knl_gtsk_table[TaskID].maxact)
    	    {
    	        tcb->actcnt += 1;
    	    }
    	    else
    	    #endif
    	    {
    	    	ercd = E_OS_LIMIT;
    	    	goto Error_Exit;
    		}
    	}
    	
    	knl_ctxtsk->state = TS_DORMANT;
    	knl_search_schedtsk();
    	#if((cfgOS_CONFORMANCE_CLASS == ECC2) || (cfgOS_CONFORMANCE_CLASS == BCC2))
    	if(knl_ctxtsk->actcnt > 0)
    	{
    	    knl_ctxtsk->actcnt -= 1;
    	    knl_make_active(knl_ctxtsk);
    	}
        #endif
        if (TS_DORMANT == state) {
            knl_make_active(tcb);
    	}
    }
    knl_force_dispatch();

	/* No return */
	Error_Exit:
    return ercd;
}
Ejemplo n.º 2
0
/* |------------------+------------------------------------------------------------| */
StatusType ActivateTask ( TaskType TaskID )
{
	StatusType ercd = E_OK;
	TCB *tcb;
	TSTAT	state;
	OS_CHECK((TaskID<cfgOSEK_TASK_NUM),E_OS_ID);
	tcb = &knl_tcb_table[TaskID];
	BEGIN_CRITICAL_SECTION;
	state = (TSTAT)tcb->state;
	if (TS_DORMANT == state) {
        knl_make_active(tcb);
	} else {
	    #if((cfgOS_CONFORMANCE_CLASS == ECC2) || (cfgOS_CONFORMANCE_CLASS == BCC2))
	    if(tcb->actcnt < knl_gtsk_table[TaskID].maxact)
	    {
	        tcb->actcnt += 1;
	    }
	    else
	    #endif
	    {
	    	ercd = E_OS_LIMIT;
		}
	}
	END_CRITICAL_SECTION;

	Error_Exit:
	return ercd;
}
Ejemplo n.º 3
0
/* |------------------+------------------------------------------------------------| */
StatusType ActivateTask ( TaskType TaskID )
{
	StatusType ercd = E_OK;
	TCB *tcb;
	TSTAT	state;
	OS_CHECK((TaskID<cfgOSEK_TASK_NUM),E_OS_ID);
	tcb = &knl_tcb_table[TaskID];
	BEGIN_CRITICAL_SECTION;
	state = (TSTAT)tcb->state;
	if (TS_DORMANT == state) {
        knl_make_active(tcb);
	} else {
	    #if((cfgOS_CONFORMANCE_CLASS == ECC2) || (cfgOS_CONFORMANCE_CLASS == BCC2))
	    if(tcb->actcnt < knl_gtsk_table[TaskID].maxact)
	    {
	        tcb->actcnt += 1;
	        #if(cfgOSEK_FIFO_QUEUE_PER_PRIORITY == STD_ON)
	        knl_ready_queue_insert(&knl_ready_queue, tcb);
	        #endif
	    }
	    else
	    #endif
	    {
	    	ercd = E_OS_LIMIT;
		}
	}
	END_CRITICAL_SECTION;

	Error_Exit:
	#if(cfgOS_ERROR_HOOK == STD_ON)
	if(E_OK != ercd)
	{
    	BEGIN_CRITICAL_SECTION;
    	_errorhook_svcid = OSServiceId_ActivateTask;
    	_errorhook_par1.tskid = TaskID;
    	CallErrorHook(ercd);
    	END_CRITICAL_SECTION;
	}
	#endif /* cfgOS_ERROR_HOOK */
	return ercd;
}
Ejemplo n.º 4
0
/* |------------------+--------------------------------------------------------------| */
StatusType TerminateTask ( void )
{
	StatusType ercd = E_NOT_OK;
	OS_CHECK_EXT(!in_indp(),E_OS_CALLEVEL);
	OS_CHECK_EXT(isQueEmpty(&knl_ctxtsk->resque),E_OS_RESOURCE);
	DISABLE_INTERRUPT;

	#if(cfgOS_POST_TASK_HOOK == STD_ON)
    PostTaskHook();
    #endif
	knl_ctxtsk->state = TS_DORMANT;
	//release internal resource or for non-preemtable task
	ReleaseInternalResource();
	knl_ctxtsk->priority = knl_ctxtsk->itskpri;
	knl_search_schedtsk();
	#if((cfgOS_CONFORMANCE_CLASS == ECC2) || (cfgOS_CONFORMANCE_CLASS == BCC2))
	if(knl_ctxtsk->actcnt > 0)
	{
	    knl_ctxtsk->actcnt -= 1;
	    #if(cfgOSEK_FIFO_QUEUE_PER_PRIORITY == STD_OFF)
	    knl_make_active(knl_ctxtsk);
	    #else
	    knl_make_ready(knl_ctxtsk);
	    #endif
	}
    #endif
	knl_force_dispatch();
	/* No return */

	Error_Exit:
	#if(cfgOS_ERROR_HOOK == STD_ON)
    if(E_OK != ercd)
	{
    	BEGIN_CRITICAL_SECTION;
    	_errorhook_svcid = OSServiceId_TerminateTask;
    	CallErrorHook(ercd);
    	END_CRITICAL_SECTION;
    }
	#endif /* cfgOS_ERROR_HOOK */
	return ercd;
}
Ejemplo n.º 5
0
/* |------------------+--------------------------------------------------------------| */
StatusType TerminateTask ( void )
{
	StatusType ercd = E_NOT_OK;
	OS_CHECK_EXT(!in_indp(),E_OS_CALLEVEL);
	OS_CHECK_EXT(isQueEmpty(&knl_ctxtsk->resque),E_OS_RESOURCE);
	DISABLE_INTERRUPT;

	knl_ctxtsk->state = TS_DORMANT;
	knl_search_schedtsk();
	#if((cfgOS_CONFORMANCE_CLASS == ECC2) || (cfgOS_CONFORMANCE_CLASS == BCC2))
	if(knl_ctxtsk->actcnt > 0)
	{
	    knl_ctxtsk->actcnt -= 1;
	    knl_make_active(knl_ctxtsk);
	}
    #endif
	knl_force_dispatch();
	/* No return */

	Error_Exit:
	return ercd;
}
Ejemplo n.º 6
0
/* |------------------+-------------------------------------------------------------| */
StatusType ChainTask ( TaskType TaskID )
{
	StatusType ercd = E_NOT_OK;
	TCB * tcb;
	TSTAT state;

	OS_CHECK((TaskID<cfgOSEK_TASK_NUM),E_OS_ID);
    OS_CHECK_EXT(!in_indp(),E_OS_CALLEVEL);
	OS_CHECK_EXT(isQueEmpty(&knl_ctxtsk->resque),E_OS_RESOURCE);
	DISABLE_INTERRUPT;
    if(TaskID == knl_ctxtsk->tskid){
        /* chain to itself */
        knl_search_schedtsk();
        knl_make_active(knl_ctxtsk);
    }
    else{
        /* firstly terminate current running task knl_ctxtsk,
         * and then activate TaskID */
      	tcb = &knl_tcb_table[TaskID];
        state = (TSTAT)tcb->state;
    	if (TS_DORMANT != state) {
    	    #if((cfgOS_CONFORMANCE_CLASS == ECC2) || (cfgOS_CONFORMANCE_CLASS == BCC2))
    	    if(tcb->actcnt < knl_gtsk_table[TaskID].maxact)
    	    {
    	        tcb->actcnt += 1;
    	        #if(cfgOSEK_FIFO_QUEUE_PER_PRIORITY == STD_ON)
    	        knl_ready_queue_insert(&knl_ready_queue, tcb);
    	        #endif
    	    }
    	    else
    	    #endif
    	    {
    	    	ercd = E_OS_LIMIT;
    	    	goto Error_Exit;
    		}
    	}
    	
    	#if(cfgOS_POST_TASK_HOOK == STD_ON)
	    PostTaskHook();
	    #endif

    	knl_ctxtsk->state = TS_DORMANT;
    	knl_search_schedtsk();
    	#if((cfgOS_CONFORMANCE_CLASS == ECC2) || (cfgOS_CONFORMANCE_CLASS == BCC2))
    	if(knl_ctxtsk->actcnt > 0)
    	{
    	    knl_ctxtsk->actcnt -= 1;
    	    #if(cfgOSEK_FIFO_QUEUE_PER_PRIORITY == STD_OFF)
    	    knl_make_active(knl_ctxtsk);
    	    #else
    	    knl_make_ready(knl_ctxtsk);
    	    #endif
    	}
        #endif
        if (TS_DORMANT == state) {
            knl_make_active(tcb);
    	}
    }
    knl_force_dispatch();

	/* No return */
	Error_Exit:
	ENABLE_INTERRUPT;
	#if(cfgOS_ERROR_HOOK == STD_ON)
	if(E_OK != ercd)
	{
    	BEGIN_CRITICAL_SECTION;
    	_errorhook_svcid = OSServiceId_ChainTask;
    	_errorhook_par1.tskid = TaskID;
    	CallErrorHook(ercd);
    	END_CRITICAL_SECTION;
    }
	#endif /* cfgOS_ERROR_HOOK */	
    return ercd;
}