/*
* Processing if the priority of send wait task changes
*/
LOCAL void cal_chg_pri( TCB *tcb, INT oldpri )
{
PORCB *porcb;
porcb = get_porcb(tcb->wid);
knl_gcb_change_priority((GCB*)porcb, tcb);
}
/*
* Processing if the priority of wait task changes
*/
LOCAL void sem_chg_pri( TCB *tcb, INT oldpri )
{
SEMCB *semcb;
QUEUE *queue;
TCB *top;
semcb = get_semcb(tcb->wid);
if ( oldpri >= 0 ) {
/* Reorder wait line */
knl_gcb_change_priority((GCB*)semcb, tcb);
}
if ( (semcb->sematr & TA_CNT) != 0 ) {
return;
}
/* From the head task in a wait queue, allocate semaphore counts
and release wait state as much as possible */
queue = semcb->wait_queue.next;
while ( queue != &semcb->wait_queue ) {
top = (TCB*)queue;
queue = queue->next;
/* Meet condition for releasing wait? */
if ( semcb->semcnt < top->winfo.sem.cnt ) {
break;
}
/* Release wait */
knl_wait_release_ok(top);
semcb->semcnt -= top->winfo.sem.cnt;
}
}
/*
* Processing if the priority of wait task changes
*/
LOCAL void knl_mpf_chg_pri( TCB *tcb, INT oldpri )
{
MPFCB *mpfcb;
mpfcb = get_mpfcb(tcb->wid);
knl_gcb_change_priority((GCB*)mpfcb, tcb);
}
/*
* Processing if the priority of wait task changes
*/
LOCAL void flg_chg_pri( TCB *tcb, INT oldpri )
{
FLGCB *flgcb;
flgcb = get_flgcb(tcb->wid);
knl_gcb_change_priority((GCB*)flgcb, tcb);
}
/*
* Processing if the priority of wait task changes
*/
LOCAL void mtx_chg_pri( TCB *tcb, INT oldpri )
{
MTXCB *mtxcb;
TCB *mtxtsk;
mtxcb = get_mtxcb(tcb->wid);
knl_gcb_change_priority((GCB*)mtxcb, tcb);
if ( (mtxcb->mtxatr & TA_CEILING) == TA_INHERIT ) {
mtxtsk = mtxcb->mtxtsk;
if ( mtxtsk->priority > tcb->priority ) {
/* Since the highest priority of the lock wait task
became higher, raise the lock get task priority
higher */
knl_change_task_priority(mtxtsk, tcb->priority);
} else if ( mtxtsk->priority == oldpri ) {
/* Since the highest priority of the lock wait task
might become lower, adjust this priority */
reset_priority(mtxtsk);
}
}
}
