package rbd /* #include */ import "C" import ( "errors" "github.com/ceph/go-ceph/internal/errutil" ) // rbdError represents an error condition returned from the librbd APIs. type rbdError int func (e rbdError) Error() string { return errutil.FormatErrorCode("rbd", int(e)) } func (e rbdError) ErrorCode() int { return int(e) } func getError(err C.int) error { if err != 0 { if err == -C.ENOENT { return ErrNotFound } return rbdError(err) } return nil } // getErrorIfNegative converts a ceph return code to error if negative. // This is useful for functions that return a usable positive value on // success but a negative error number on error. func getErrorIfNegative(ret C.int) error { if ret >= 0 { return nil } return getError(ret) } // Public go errors: var ( // ErrNoIOContext may be returned if an api call requires an IOContext and // it is not provided. ErrNoIOContext = errors.New("IOContext is missing") // ErrNoName may be returned if an api call requires a name and it is // not provided. ErrNoName = errors.New("RBD image does not have a name") // ErrSnapshotNoName may be returned if an api call requires a snapshot // name and it is not provided. ErrSnapshotNoName = errors.New("RBD snapshot does not have a name") // ErrImageNotOpen may be returned if an api call requires an open image handle and one is not provided. ErrImageNotOpen = errors.New("RBD image not open") // ErrImageIsOpen may be returned if an api call requires a closed image handle and one is not provided. ErrImageIsOpen = errors.New("RBD image is open") // ErrNotFound may be returned from an api call when the requested item is // missing. ErrNotFound = errors.New("RBD image not found") // ErrNoNamespaceName maye be returned if an api call requires a namespace // name and it is not provided. ErrNoNamespaceName = errors.New("Namespace value is missing") // revive:disable:exported for compatibility with old versions RbdErrorImageNotOpen = ErrImageNotOpen RbdErrorNotFound = ErrNotFound // revive:enable:exported ) // Private errors: const ( errRange = rbdError(-C.ERANGE) )