C++ (Cpp) LOG_SIG_SEM_ENTER Examples

Example #1

File: semaphore.c Project: Ashatta/tools

SYSCALL ER
sig_sem(ID semid)
{
	SEMCB	*semcb;
	TCB	*tcb;
	ER	ercd;
    
	LOG_SIG_SEM_ENTER(semid);
	CHECK_TSKCTX_UNL();
	CHECK_SEMID(semid);
	semcb = get_semcb(semid);

	t_lock_cpu();
	if (!(queue_empty(&(semcb->wait_queue)))) {
		tcb = (TCB *) queue_delete_next(&(semcb->wait_queue));
		if (wait_complete(tcb)) {
			dispatch();
		}
		ercd = E_OK;
	}
	else if (semcb->semcnt < semcb->seminib->maxsem) {
		semcb->semcnt += 1;
		ercd = E_OK;
	}
	else {
		ercd = E_QOVR;
	}
	t_unlock_cpu();

    exit:
	LOG_SIG_SEM_LEAVE(ercd);
	return(ercd);
}

Example #2

File: semaphore.c Project: ev3rt-git/ev3rt-hrp3

ER
sig_sem(ID semid)
{
	SEMCB	*p_semcb;
	TCB		*p_tcb;
	ER		ercd;
    
	LOG_SIG_SEM_ENTER(semid);
	CHECK_UNL();
	CHECK_ID(VALID_SEMID(semid));
	p_semcb = get_semcb(semid);

	lock_cpu();
	if (p_semcb->p_seminib->sematr == TA_NOEXS) {
		ercd = E_NOEXS;
	}
	else if (VIOLATE_ACPTN(p_semcb->p_seminib->acvct.acptn1)) {
		ercd = E_OACV;
	}
	else if (!queue_empty(&(p_semcb->wait_queue))) {
		p_tcb = (TCB *) queue_delete_next(&(p_semcb->wait_queue));
		wait_complete(p_tcb);
		if (p_runtsk != p_schedtsk) {
			if (!sense_context()) {
				dispatch();
			}
			else {
				request_dispatch_retint();
			}
		}
		ercd = E_OK;
	}
	else if (p_semcb->semcnt < p_semcb->p_seminib->maxsem) {
		p_semcb->semcnt += 1;
		ercd = E_OK;
	}
	else {
		ercd = E_QOVR;
	}
	unlock_cpu();

  error_exit:
	LOG_SIG_SEM_LEAVE(ercd);
	return(ercd);
}

Example #3

File: semaphore.c Project: yuyaotsuka/etrobo

ER
sig_sem(ID semid)
{
    SEMCB	*p_semcb;
    TCB		*p_tcb;
    ER		ercd;

    LOG_SIG_SEM_ENTER(semid);
    CHECK_TSKCTX_UNL();
    CHECK_SEMID(semid);
    p_semcb = get_semcb(semid);

    t_lock_cpu();
    if (p_semcb->p_seminib->sematr == TA_NOEXS) {
        ercd = E_NOEXS;
    }
    else if (VIOLATE_ACPTN(p_semcb->p_seminib->acvct.acptn1)) {
        ercd = E_OACV;
    }
    else if (!queue_empty(&(p_semcb->wait_queue))) {
        p_tcb = (TCB *) queue_delete_next(&(p_semcb->wait_queue));
        if (wait_complete(p_tcb)) {
            dispatch();
        }
        ercd = E_OK;
    }
    else if (p_semcb->semcnt < p_semcb->p_seminib->maxsem) {
        p_semcb->semcnt += 1;
        ercd = E_OK;
    }
    else {
        ercd = E_QOVR;
    }
    t_unlock_cpu();

error_exit:
    LOG_SIG_SEM_LEAVE(ercd);
    return(ercd);
}