C++ (Cpp) tapdisk_image_close_chain Beispiele

Beispiel #1

Datei: tapdisk-vbd.c Projekt: BobBall/blktap

void
tapdisk_vbd_close_vdi(td_vbd_t *vbd)
{
    int err;

    err = vbd_stats_destroy(vbd);
    if (err) {
        EPRINTF("failed to destroy RRD stats file: %s (error ignored)\n",
                strerror(-err));
    }

	tapdisk_image_close_chain(&vbd->images);

	if (vbd->secondary &&
	    vbd->secondary_mode != TD_VBD_SECONDARY_MIRROR) {
		tapdisk_image_close(vbd->secondary);
		vbd->secondary = NULL;
	}

	if (vbd->retired) {
		tapdisk_image_close(vbd->retired);
		vbd->retired = NULL;
	}

	td_flag_set(vbd->state, TD_VBD_CLOSED);
}

Beispiel #2

Datei: tapdisk-vbd.c Projekt: Kristoffer/blktap

void
tapdisk_vbd_close_vdi(td_vbd_t *vbd)
{
	tapdisk_image_close_chain(&vbd->images);

	if (vbd->secondary &&
	    vbd->secondary_mode != TD_VBD_SECONDARY_MIRROR) {
		tapdisk_image_close(vbd->secondary);
		vbd->secondary = NULL;
	}

	if (vbd->retired) {
		tapdisk_image_close(vbd->retired);
		vbd->retired = NULL;
	}

	td_flag_set(vbd->state, TD_VBD_CLOSED);
}

Beispiel #3

Datei: tapdisk-image.c Projekt: DarumasLegs/blktap

static int
__tapdisk_image_open_chain(int type, const char *name, int flags,
			   struct list_head *_head, int prt_devnum)
{
	struct list_head head = LIST_HEAD_INIT(head);
	td_image_t *image;
	int err;

	err = tapdisk_image_open(type, name, flags, &image);
	if (err)
		goto fail;

	list_add_tail(&image->next, &head);

	if (unlikely(prt_devnum >= 0)) {
		char dev[32];
		snprintf(dev, sizeof(dev),
			 "%s%d", BLKTAP2_IO_DEVICE, prt_devnum);
		err = tapdisk_image_open(DISK_TYPE_AIO, dev,
					 flags|TD_OPEN_RDONLY, &image);
		if (err)
			goto fail;

		list_add_tail(&image->next, &head);
		goto done;
	}

	err = tapdisk_image_open_parents(image);
	if (err)
		goto fail;

done:
	list_splice(&head, _head);
	return 0;

fail:
	tapdisk_image_close_chain(&head);
	return err;
}

Beispiel #4

Datei: tapdisk-vbd.c Projekt: Kristoffer/blktap

int
tapdisk_vbd_open_vdi(td_vbd_t *vbd, const char *name, td_flag_t flags, int prt_devnum)
{
	char *tmp = vbd->name;
	int err;

	if (!list_empty(&vbd->images)) {
		err = -EBUSY;
		goto fail;
	}

	if (!name && !vbd->name) {
		err = -EINVAL;
		goto fail;
	}

	if (name) {
		vbd->name = strdup(name);
		if (!vbd->name) {
			err = -errno;
			goto fail;
		}
	}

	err = tapdisk_image_open_chain(vbd->name, flags, prt_devnum, &vbd->images);
	if (err)
		goto fail;

	td_flag_clear(vbd->state, TD_VBD_CLOSED);
	vbd->flags = flags;

	if (td_flag_test(vbd->flags, TD_OPEN_LOG_DIRTY)) {
		err = tapdisk_vbd_add_dirty_log(vbd);
		if (err)
			goto fail;
	}

	if (td_flag_test(vbd->flags, TD_OPEN_ADD_CACHE)) {
		err = tapdisk_vbd_add_block_cache(vbd);
		if (err)
			goto fail;
	}

	if (td_flag_test(vbd->flags, TD_OPEN_LOCAL_CACHE)) {
		err = tapdisk_vbd_add_local_cache(vbd);
		if (err)
			goto fail;
	}

	err = tapdisk_vbd_validate_chain(vbd);
	if (err)
		goto fail;

	if (td_flag_test(vbd->flags, TD_OPEN_SECONDARY)) {
		err = tapdisk_vbd_add_secondary(vbd);
		if (err) {
			if (vbd->nbd_mirror_failed != 1)
				goto fail;
			INFO("Ignoring failed NBD secondary attach\n");
			err = 0;
		}
	}

	if (tmp != vbd->name)
		free(tmp);

	return err;

fail:
	if (vbd->name != tmp) {
		free(vbd->name);
		vbd->name = tmp;
	}

	if (!list_empty(&vbd->images))
		tapdisk_image_close_chain(&vbd->images);

	vbd->flags = 0;

	return err;
}