Exemple #1
0
// int rbd_create(rados_ioctx_t io, const char *name, uint64_t size, int *order);
// int rbd_create2(rados_ioctx_t io, const char *name, uint64_t size,
//          uint64_t features, int *order);
// int rbd_create3(rados_ioctx_t io, const char *name, uint64_t size,
//        uint64_t features, int *order,
//        uint64_t stripe_unit, uint64_t stripe_count);
func Create(ioctx *rados.IOContext, name string, size uint64,
	args ...uint64) (image *Image, err error) {
	var ret C.int
	var c_order C.int
	var c_name *C.char = C.CString(name)
	defer C.free(unsafe.Pointer(c_name))

	switch len(args) {
	case 2:
		ret = C.rbd_create3(C.rados_ioctx_t(ioctx.Pointer()),
			c_name, C.uint64_t(size),
			C.uint64_t(args[0]), &c_order,
			C.uint64_t(args[1]), C.uint64_t(args[2]))
	case 1:
		ret = C.rbd_create2(C.rados_ioctx_t(ioctx.Pointer()),
			c_name, C.uint64_t(size),
			C.uint64_t(args[0]), &c_order)
	case 0:
		ret = C.rbd_create(C.rados_ioctx_t(ioctx.Pointer()),
			c_name, C.uint64_t(size), &c_order)
	default:
		return nil, errors.New("Wrong number of argument")
	}

	if ret < 0 {
		return nil, RBDError(int(ret))
	}

	return &Image{
		ioctx: ioctx,
		name:  name,
	}, nil
}
Exemple #2
0
// CreateImage creates a rbd image for the pool. Given a name and size in
// bytes, it will return any error if there was a problem creating the
// image.
func (p *Pool) CreateImage(name string, size uint64) error {
	str := C.CString(name)
	defer C.free(unsafe.Pointer(str))

	order := C.int(0)

	if i := C.rbd_create(p.ioctx, str, C.uint64_t(size), &order); i < 0 {
		return strerror(i)
	}

	return nil
}