Exemple #1
0
int sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize)
{
	sigset_t saveset, newset;

	/* XXX: Don't preclude handling different sized sigset_t's.  */
	if (sigsetsize != sizeof(sigset_t))
		return -EINVAL;

	if (copy_from_user(&newset, unewset, sizeof(newset)))
		return -EFAULT;
	sigdelsetmask(&newset, ~_BLOCKABLE);

	spin_lock_irq(&current->sighand->siglock);
	saveset = current->blocked;
	current->blocked = newset;
	recalc_sigpending();
	spin_unlock_irq(&current->sighand->siglock);

	while (1) {
		current->state = TASK_INTERRUPTIBLE;
		schedule();
		if (kern_do_signal(&current->thread.regs, &saveset, -EINTR))
			return(-EINTR);
	}
}
Exemple #2
0
/*
 * Atomically swap in the new signal mask, and wait for a signal.
 */
int sys_sigsuspend(int history0, int history1, old_sigset_t mask)
{
	sigset_t saveset;

	mask &= _BLOCKABLE;
	spin_lock_irq(&current->sighand->siglock);
	saveset = current->blocked;
	siginitset(&current->blocked, mask);
	recalc_sigpending();
	spin_unlock_irq(&current->sighand->siglock);

	while (1) {
		current->state = TASK_INTERRUPTIBLE;
		schedule();
		if(kern_do_signal(&current->thread.regs, &saveset, -EINTR))
			return(-EINTR);
	}
}
Exemple #3
0
int do_signal(void)
{
	return kern_do_signal(&current->thread.regs);
}
Exemple #4
0
int do_signal(int error)
{
	return(kern_do_signal(&current->thread.regs, NULL, error));
}