Exemplo n.º 1
0
// Truncate sets the size of the named object in the pool referenced by
// the given context to size. If this enlarges the object, the new area
// is logically filled with zeroes. If this shrinks the object, the data
// is removed.
func (c *Context) Truncate(name string, size int64) error {
	cname := C.CString(name)
	defer C.free(unsafe.Pointer(cname))

	if cerr := C.rados_trunc(c.ctx, cname, C.uint64_t(size)); cerr != 0 {
		return fmt.Errorf("RADOS trunc: %s: %s", name, strerror(cerr))
	}

	return nil
}
Exemplo n.º 2
0
// Truncate sets the size of the named object in the pool referenced by
// the given context to size. If this enlarges the object, the new area
// is logically filled with zeroes. If this shrinks the object, the data
// is removed.
func (c *Context) Truncate(name string, size int64) error {
	cname := C.CString(name)
	defer C.free(unsafe.Pointer(cname))

	if cerr := C.rados_trunc(c.ctx, cname, C.uint64_t(size)); cerr != 0 {
		return radosReturnCodeError(cerr)
	}

	return nil
}
Exemplo n.º 3
0
func (r *RadosIoCtx) Trunc(oid string, length uint64) error {
	coid := C.CString(oid)
	defer func() {
		C.free(unsafe.Pointer(coid))
	}()
	cerr := C.rados_trunc(*r.ctx, coid, C.uint64_t(length))
	if cerr < 0 {
		return errors.New("resize object failed")
	}
	return nil
}
Exemplo n.º 4
0
// Truncate modifies the size of an object. If the object size in increased, the new space is zero-filled. If the size
// is reduced, the excess data is removed.
func (o *Object) Truncate(size uint64) error {
	oid := C.CString(o.name)
	defer freeString(oid)
	s := C.uint64_t(size)
	ret := C.rados_trunc(o.ioContext, oid, s)
	if err := toRadosError(ret); err != nil {
		err.Message = fmt.Sprintf("Unable to resize object %s to size %d.", o.name, size)
		return err
	}
	return nil
}
Exemplo n.º 5
0
// Truncate resizes the object with key oid to size size. If the operation
// enlarges the object, the new area is logically filled with zeroes. If the
// operation shrinks the object, the excess data is removed. It returns an
// error, if any.
func (p *Pool) Truncate(oid string, size uint64) error {
	c_oid := C.CString(oid)
	defer C.free(unsafe.Pointer(c_oid))

	ret := C.rados_trunc(p.ioctx, c_oid, (C.uint64_t)(size))

	if ret == 0 {
		return nil
	} else {
		return RadosError(int(ret))
	}
}
Exemplo n.º 6
0
// Truncate resizes the object with key oid to size size. If the operation
// enlarges the object, the new area is logically filled with zeroes. If the
// operation shrinks the object, the excess data is removed. It returns an
// error, if any.
func (ioctx *IOContext) Truncate(oid string, size uint64) error {
	c_oid := C.CString(oid)
	defer C.free(unsafe.Pointer(c_oid))

	return GetRadosError(C.rados_trunc(ioctx.ioctx, c_oid, (C.uint64_t)(size)))
}