go-ceph/cephfs/errors.go
John Mulligan 1899072b27 cephfs: add additional error handling and state checks to file funcs
Now, the close function is idempotent wrt being called multiple times
on a valid file. Additionally, check the state of the file in various
functions to produce sensible errors, matching those cephfs itself
returns, if the object was not constructed properly.

Signed-off-by: John Mulligan <jmulligan@redhat.com>
2020-04-28 17:49:49 +02:00

52 lines
921 B
Go

package cephfs
/*
#include <errno.h>
*/
import "C"
import (
"fmt"
"github.com/ceph/go-ceph/internal/errutil"
)
// revive:disable:exported Temporarily live with stuttering
// CephFSError represents an error condition returned from the CephFS APIs.
type CephFSError int
// revive:enable:exported
// Error returns the error string for the CephFSError type.
func (e CephFSError) Error() string {
errno, s := errutil.FormatErrno(int(e))
if s == "" {
return fmt.Sprintf("cephfs: ret=%d", errno)
}
return fmt.Sprintf("cephfs: ret=%d, %s", errno, s)
}
func getError(e C.int) error {
if e == 0 {
return nil
}
return CephFSError(e)
}
// Public go errors:
const (
// ErrNotConnected may be returned when client is not connected
// to a cluster.
ErrNotConnected = CephFSError(-C.ENOTCONN)
)
// Private errors:
const (
errNameTooLong = CephFSError(-C.ENAMETOOLONG)
errInvalid = CephFSError(-C.EINVAL)
)