/**********************************************************************
* Return the TCB of the next task ready to run. According to OSEK
* specification, the next running task is the task in READY state
* with the highest priority.
*
* @param void
* @return ptrTCB Addresse of the TCB
**********************************************************************/
ptrTCB GetNextRunningTCB(void)
{
ptrTCB parserTCB;
parserTCB = firstTCB;
SuspendOSInterrupts();
while (1)
{
if ((parserTCB->State & READY) && (parserTCB->State != WAITING))
{
if ((parserTCB->Type & ROUND_ROBIN) && !(parserTCB->State & RR_RUNNING))
{
if (parserTCB == parserTCB->next)
break;
else
parserTCB = parserTCB->next;
continue;
}
currentTCB = parserTCB;
ResumeOSInterrupts();
return(parserTCB);
}
if (parserTCB == parserTCB->next)
break;
else
parserTCB = parserTCB->next;
}
ResumeOSInterrupts();
return (NULL);
}
/*test case:test the reaction of the system called with
an activation of a task*/
static void test_t1_instance(void)
{
StatusType result_inst_1, result_inst_2, result_inst_3;
SCHEDULING_CHECK_STEP(1);
SuspendAllInterrupts();
SCHEDULING_CHECK_INIT(2);
result_inst_1 = ActivateTask(t2);
SCHEDULING_CHECK_AND_EQUAL_INT(2,E_OS_DISABLEDINT, result_inst_1);
SCHEDULING_CHECK_STEP(3);
sendSoftwareIt(0, SOFT_IRQ0);
SCHEDULING_CHECK_STEP(4);
ResumeOSInterrupts();
SCHEDULING_CHECK_STEP(5);
EnableAllInterrupts();
SCHEDULING_CHECK_STEP(6);
ResumeAllInterrupts();
SCHEDULING_CHECK_STEP(8);
SuspendOSInterrupts();
SCHEDULING_CHECK_INIT(9);
result_inst_2 = ActivateTask(t2);
SCHEDULING_CHECK_AND_EQUAL_INT(9,E_OS_DISABLEDINT, result_inst_2);
SCHEDULING_CHECK_STEP(10);
sendSoftwareIt(0, SOFT_IRQ0);
SCHEDULING_CHECK_STEP(11);
ResumeAllInterrupts();
SCHEDULING_CHECK_STEP(12);
EnableAllInterrupts();
SCHEDULING_CHECK_STEP(13);
DisableAllInterrupts();
SCHEDULING_CHECK_STEP(14);
EnableAllInterrupts();
SCHEDULING_CHECK_STEP(15);
ResumeOSInterrupts();
SCHEDULING_CHECK_STEP(17);
DisableAllInterrupts();
SCHEDULING_CHECK_INIT(18);
result_inst_3 = ActivateTask(t2);
SCHEDULING_CHECK_AND_EQUAL_INT(18,E_OS_DISABLEDINT, result_inst_3);
SCHEDULING_CHECK_STEP(19);
sendSoftwareIt(0, SOFT_IRQ0);
SCHEDULING_CHECK_STEP(20);
ResumeAllInterrupts();
SCHEDULING_CHECK_STEP(21);
ResumeOSInterrupts();
SCHEDULING_CHECK_STEP(22);
EnableAllInterrupts();
SCHEDULING_CHECK_STEP(24);
}