mirror of
https://github.com/ceph/go-ceph
synced 2024-12-12 09:26:52 +00:00
5c537e20ad
This function is added, along with required return types and some helper functions, to support fetching the global mirroring status component that makes up a major part of `rbd mirror image status` command's output. Signed-off-by: John Mulligan <jmulligan@redhat.com>
85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
package rbd
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/*
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#include <errno.h>
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*/
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import "C"
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import (
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"errors"
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"github.com/ceph/go-ceph/internal/errutil"
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)
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// rbdError represents an error condition returned from the librbd APIs.
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type rbdError int
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func (e rbdError) Error() string {
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return errutil.FormatErrorCode("rbd", int(e))
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}
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func (e rbdError) ErrorCode() int {
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return int(e)
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}
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func getError(err C.int) error {
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if err != 0 {
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if err == -C.ENOENT {
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return ErrNotFound
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}
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return rbdError(err)
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}
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return nil
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}
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// getErrorIfNegative converts a ceph return code to error if negative.
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// This is useful for functions that return a usable positive value on
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// success but a negative error number on error.
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func getErrorIfNegative(ret C.int) error {
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if ret >= 0 {
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return nil
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}
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return getError(ret)
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}
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// Public go errors:
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var (
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// ErrNoIOContext may be returned if an api call requires an IOContext and
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// it is not provided.
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ErrNoIOContext = errors.New("IOContext is missing")
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// ErrNoName may be returned if an api call requires a name and it is
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// not provided.
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ErrNoName = errors.New("RBD image does not have a name")
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// ErrSnapshotNoName may be returned if an api call requires a snapshot
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// name and it is not provided.
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ErrSnapshotNoName = errors.New("RBD snapshot does not have a name")
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// ErrImageNotOpen may be returned if an api call requires an open image handle and one is not provided.
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ErrImageNotOpen = errors.New("RBD image not open")
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// ErrImageIsOpen may be returned if an api call requires a closed image handle and one is not provided.
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ErrImageIsOpen = errors.New("RBD image is open")
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// ErrNotFound may be returned from an api call when the requested item is
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// missing.
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ErrNotFound = errors.New("RBD image not found")
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// ErrNoNamespaceName maye be returned if an api call requires a namespace
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// name and it is not provided.
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ErrNoNamespaceName = errors.New("Namespace value is missing")
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// revive:disable:exported for compatibility with old versions
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RbdErrorImageNotOpen = ErrImageNotOpen
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RbdErrorNotFound = ErrNotFound
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// revive:enable:exported
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)
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// Public general error
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const (
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// ErrNotExist indicates a non-specific missing resource.
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ErrNotExist = rbdError(-C.ENOENT)
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)
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// Private errors:
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const (
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errRange = rbdError(-C.ERANGE)
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)
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