C++ (Cpp) libxl__async_exec_start Examples

Example #1

File: libxl_netbuffer.c Project: Xilinx/xen

static void nic_setup(libxl__egc *egc, libxl__checkpoint_device *dev)
{
    int rc;
    libxl__remus_device_nic *remus_nic;
    const libxl_device_nic *nic = dev->backend_dev;

    STATE_AO_GC(dev->cds->ao);

    /*
     * thers's no subkind of nic devices, so nic ops is always matched
     * with nic devices
     */
    dev->matched = true;

    GCNEW(remus_nic);
    dev->concrete_data = remus_nic;
    remus_nic->devid = nic->devid;
    remus_nic->vif = get_vifname(dev, nic);
    if (!remus_nic->vif) {
        rc = ERROR_FAIL;
        goto out;
    }

    setup_async_exec(dev, "setup");
    rc = libxl__async_exec_start(&dev->aodev.aes);
    if (rc)
        goto out;

    return;

out:
    dev->aodev.rc = rc;
    dev->aodev.callback(egc, &dev->aodev);
}

Example #2

File: libxl_netbuffer.c Project: Xilinx/xen

static void nic_teardown(libxl__egc *egc, libxl__checkpoint_device *dev)
{
    int rc;
    STATE_AO_GC(dev->cds->ao);

    setup_async_exec(dev, "teardown");

    rc = libxl__async_exec_start(&dev->aodev.aes);
    if (rc)
        goto out;

    return;

out:
    dev->aodev.rc = rc;
    dev->aodev.callback(egc, &dev->aodev);
}

Example #3

File: libxl_remus_disk_drbd.c Project: HackLinux/xen-4.5

static void match_async_exec(libxl__egc *egc, libxl__remus_device *dev)
{
    int arraysize, nr = 0, rc;
    const libxl_device_disk *disk = dev->backend_dev;
    libxl__async_exec_state *aes = &dev->aodev.aes;
    STATE_AO_GC(dev->rds->ao);

    /* setup env & args */
    arraysize = 1;
    GCNEW_ARRAY(aes->env, arraysize);
    aes->env[nr++] = NULL;
    assert(nr <= arraysize);

    arraysize = 3;
    nr = 0;
    GCNEW_ARRAY(aes->args, arraysize);
    aes->args[nr++] = dev->rds->drbd_probe_script;
    aes->args[nr++] = disk->pdev_path;
    aes->args[nr++] = NULL;
    assert(nr <= arraysize);

    aes->ao = dev->rds->ao;
    aes->what = GCSPRINTF("%s %s", aes->args[0], aes->args[1]);
    aes->timeout_ms = LIBXL_HOTPLUG_TIMEOUT * 1000;
    aes->callback = match_async_exec_cb;
    aes->stdfds[0] = -1;
    aes->stdfds[1] = -1;
    aes->stdfds[2] = -1;

    rc = libxl__async_exec_start(gc, aes);
    if (rc)
        goto out;

    return;

out:
    dev->aodev.rc = rc;
    dev->aodev.callback(egc, &dev->aodev);
}