C++ (Cpp) ipc_add_timer Examples

Example #1

File: sem.c Project: spinlock/ucore

static __noinline uint32_t __down(semaphore_t *sem, uint32_t wait_state, timer_t *timer) {
    assert(sem->valid);
    bool intr_flag;
    local_intr_save(intr_flag);
    if (sem->value > 0) {
        sem->value --;
        local_intr_restore(intr_flag);
        return 0;
    }
    wait_t __wait, *wait = &__wait;
    wait_current_set(&(sem->wait_queue), wait, wait_state);
    ipc_add_timer(timer);
    local_intr_restore(intr_flag);

    schedule();

    local_intr_save(intr_flag);
    ipc_del_timer(timer);
    wait_current_del(&(sem->wait_queue), wait);
    local_intr_restore(intr_flag);

    if (wait->wakeup_flags != wait_state) {
        return wait->wakeup_flags;
    }
    return 0;
}

Example #2

File: event.c Project: HackLinux/ucorebook_code

static int
recv_event(int *pid_store, int *event_store, timer_t *timer) {
    bool intr_flag;
    local_intr_save(intr_flag);
    wait_queue_t *wait_queue = &(current->event_box.wait_queue);
    if (wait_queue_empty(wait_queue)) {
        current->state = PROC_SLEEPING;
        current->wait_state = WT_EVENT_RECV;
        ipc_add_timer(timer);
        local_intr_restore(intr_flag);

        schedule();

        local_intr_save(intr_flag);
        ipc_del_timer(timer);
    }

    int ret = -1;

    wait_t *wait;
    if ((wait = wait_queue_first(wait_queue)) != NULL) {
        struct proc_struct *proc = wait->proc;
        *pid_store = proc->pid, *event_store = proc->event_box.event, ret = 0;
        wakeup_wait(wait_queue, wait, WT_EVENT_SEND, 1);
    }
    local_intr_restore(intr_flag);
    return ret;
}

Example #3

File: sem.c Project: glglwty/ucore_plus

    __attribute__ ((noinline)) __down(semaphore_t * sem, uint32_t wait_state,
				      timer_t * timer)
{
	assert(sem->valid);
	bool intr_flag;
	spin_lock_irqsave(&sem->lock, intr_flag);
	if (sem->value > 0) {
		sem->value--;
		spin_unlock_irqrestore(&sem->lock, intr_flag);
		return 0;
	}
	wait_t __wait, *wait = &__wait;
	wait_current_set(&(sem->wait_queue), wait, wait_state);
	ipc_add_timer(timer);
	spin_unlock_irqrestore(&sem->lock, intr_flag);

	schedule();

	spin_lock_irqsave(&sem->lock, intr_flag);
	ipc_del_timer(timer);
	wait_current_del(&(sem->wait_queue), wait);
	spin_unlock_irqrestore(&sem->lock, intr_flag);

	if (wait->wakeup_flags != wait_state) {
		return wait->wakeup_flags;
	}
	return 0;
}

Example #4

File: event.c Project: HackLinux/ucorebook_code

static uint32_t
send_event(struct proc_struct *proc, timer_t *timer) {
    bool intr_flag;
    local_intr_save(intr_flag);
    wait_t __wait, *wait = &__wait;
    wait_queue_t *wait_queue = &(proc->event_box.wait_queue);
    wait_current_set(wait_queue, wait, WT_EVENT_SEND);
    ipc_add_timer(timer);
    local_intr_restore(intr_flag);

    schedule();

    local_intr_save(intr_flag);
    ipc_del_timer(timer);
    wait_current_del(wait_queue, wait);
    local_intr_restore(intr_flag);

    if (wait->wakeup_flags != WT_EVENT_SEND) {
        return wait->wakeup_flags;
    }
    return 0;
}