Esempi in C++ (Cpp) per atomic_swap_ulong

Esempio n. 1

int
hppa_ipi_intr(void *arg)
{
	struct cpu_info *ci = curcpu();
	struct cpu_softc *sc = ci->ci_softc;
	u_long ipi_pending;
	int bit = 0;

	/* Handle an IPI. */
	ipi_pending = atomic_swap_ulong(&ci->ci_ipi, 0);

	KASSERT(ipi_pending);

	sc->sc_evcnt_ipi.ev_count++;

	while (ipi_pending) {
		if (ipi_pending & (1L << bit)) {
			sc->sc_evcnt_which_ipi[bit].ev_count++;
			(*ipifunc[bit])();
		}
		ipi_pending &= ~(1L << bit);
		bit++;
	}

	return 1;
}

Esempio n. 2

File: Atomicity.sun.cpp Progetto: 3Nigma/frayon

int atomicExchange(volatile atomic_t& val, int exch)
{
    volatile ulong_t* uvalue  = reinterpret_cast<volatile ulong_t*>(&val.l);
    volatile ulong_t  unewval = exch;
    return atomic_swap_ulong(uvalue, unewval);
}