Exemplos de lock_suspend_event em C++ (Cpp)

Exemplo n.º 1

Arquivo: xc_suspend.c Projeto: changliwei/suse_xen

int xc_suspend_evtchn_init(xc_interface *xch, xc_evtchn *xce, int domid, int port)
{
    int rc, suspend_evtchn = -1;

    if (lock_suspend_event(xch, domid))
        return -EINVAL;

    suspend_evtchn = xc_evtchn_bind_interdomain(xce, domid, port);
    if (suspend_evtchn < 0) {
        ERROR("failed to bind suspend event channel: %d", suspend_evtchn);
        goto cleanup;
    }

    rc = xc_domain_subscribe_for_suspend(xch, domid, port);
    if (rc < 0) {
        ERROR("failed to subscribe to domain: %d", rc);
        goto cleanup;
    }

    /* event channel is pending immediately after binding */
    xc_await_suspend(xch, xce, suspend_evtchn);

    return suspend_evtchn;

cleanup:
    xc_suspend_evtchn_release(xch, xce, domid, suspend_evtchn);

    return -1;
}

Exemplo n.º 2

Arquivo: xc_suspend.c Projeto: CPFL/xen

int xc_suspend_evtchn_init_sane(xc_interface *xch, xc_evtchn *xce,
                                int domid, int port, int *lockfd)
{
    int rc, suspend_evtchn = -1;

    if (lock_suspend_event(xch, domid, lockfd)) {
        errno = EINVAL;
        goto cleanup;
    }

    suspend_evtchn = xc_evtchn_bind_interdomain(xce, domid, port);
    if (suspend_evtchn < 0) {
        ERROR("failed to bind suspend event channel: %d", suspend_evtchn);
        goto cleanup;
    }

    rc = xc_domain_subscribe_for_suspend(xch, domid, port);
    if (rc < 0) {
        ERROR("failed to subscribe to domain: %d", rc);
        goto cleanup;
    }

    return suspend_evtchn;

cleanup:
    xc_suspend_evtchn_release(xch, xce, domid, suspend_evtchn, lockfd);

    return -1;
}