mirror of https://github.com/ceph/go-ceph
89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
package rados
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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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"fmt"
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"github.com/ceph/go-ceph/internal/errutil"
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)
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// radosError represents an error condition returned from the Ceph RADOS APIs.
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type radosError int
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// Error returns the error string for the radosError type.
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func (e radosError) Error() string {
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errno, s := errutil.FormatErrno(int(e))
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if s == "" {
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return fmt.Sprintf("rados: ret=%d", errno)
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}
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return fmt.Sprintf("rados: ret=%d, %s", errno, s)
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}
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func (e radosError) Errno() int {
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return int(e)
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}
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func getError(e C.int) error {
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if e == 0 {
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return nil
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}
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return radosError(e)
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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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// ErrNotConnected is returned when functions are called
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// without a RADOS connection.
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ErrNotConnected = errors.New("RADOS not connected")
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// ErrEmptyArgument may be returned if a function argument is passed
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// a zero-length slice or map.
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ErrEmptyArgument = errors.New("Argument must contain at least one item")
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// ErrInvalidIOContext may be returned if an api call requires an IOContext
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// but IOContext is not ready for use.
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ErrInvalidIOContext = errors.New("IOContext is not ready for use")
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)
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// Public radosErrors:
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const (
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// ErrNotFound indicates a missing resource.
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ErrNotFound = radosError(-C.ENOENT)
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// ErrPermissionDenied indicates a permissions issue.
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ErrPermissionDenied = radosError(-C.EPERM)
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// ErrObjectExists indicates that an exclusive object creation failed.
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ErrObjectExists = radosError(-C.EEXIST)
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// RadosErrorNotFound indicates a missing resource.
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//
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// Deprecated: use ErrNotFound instead
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RadosErrorNotFound = ErrNotFound
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// RadosErrorPermissionDenied indicates a permissions issue.
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//
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// Deprecated: use ErrPermissionDenied instead
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RadosErrorPermissionDenied = ErrPermissionDenied
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)
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// Private errors:
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const (
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errNameTooLong = radosError(-C.ENAMETOOLONG)
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errRange = radosError(-C.ERANGE)
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)
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