mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-27 08:40:23 +00:00
2808d526bb
as go-ceph is 0.5.0 is released updating the dependency to latest release. more info about release at https://github.com/ceph/go-ceph/releases/tag/v0.5.0 Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
107 lines
2.8 KiB
Go
107 lines
2.8 KiB
Go
// +build !luminous,!mimic
|
|
//
|
|
// Ceph Nautilus is the first release that includes rbd_namespace_create(),
|
|
// rbd_namespace_remove(), rbd_namespace_exists() and rbd_namespace_list().
|
|
|
|
package rbd
|
|
|
|
// #cgo LDFLAGS: -lrbd
|
|
// #include <rados/librados.h>
|
|
// #include <rbd/librbd.h>
|
|
// #include <stdlib.h>
|
|
// #include <errno.h>
|
|
import "C"
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"github.com/ceph/go-ceph/internal/cutil"
|
|
"github.com/ceph/go-ceph/internal/retry"
|
|
"github.com/ceph/go-ceph/rados"
|
|
)
|
|
|
|
// NamespaceCreate creates the namespace for a given Rados IOContext.
|
|
//
|
|
// Implements:
|
|
// int rbd_namespace_create(rados_ioctx_t io, const char *namespace_name);
|
|
func NamespaceCreate(ioctx *rados.IOContext, namespaceName string) error {
|
|
if ioctx == nil {
|
|
return ErrNoIOContext
|
|
}
|
|
if namespaceName == "" {
|
|
return ErrNoNamespaceName
|
|
}
|
|
cNamespaceName := C.CString(namespaceName)
|
|
defer C.free(unsafe.Pointer(cNamespaceName))
|
|
|
|
ret := C.rbd_namespace_create(cephIoctx(ioctx), cNamespaceName)
|
|
return getError(ret)
|
|
}
|
|
|
|
// NamespaceRemove removes a given namespace.
|
|
//
|
|
// Implements:
|
|
// int rbd_namespace_remove(rados_ioctx_t io, const char *namespace_name);
|
|
func NamespaceRemove(ioctx *rados.IOContext, namespaceName string) error {
|
|
if ioctx == nil {
|
|
return ErrNoIOContext
|
|
}
|
|
if namespaceName == "" {
|
|
return ErrNoNamespaceName
|
|
}
|
|
cNamespaceName := C.CString(namespaceName)
|
|
defer C.free(unsafe.Pointer(cNamespaceName))
|
|
|
|
ret := C.rbd_namespace_remove(cephIoctx(ioctx), cNamespaceName)
|
|
return getError(ret)
|
|
}
|
|
|
|
// NamespaceExists checks whether a given namespace exists or not.
|
|
//
|
|
// Implements:
|
|
// int rbd_namespace_exists(rados_ioctx_t io, const char *namespace_name, bool *exists);
|
|
func NamespaceExists(ioctx *rados.IOContext, namespaceName string) (bool, error) {
|
|
if ioctx == nil {
|
|
return false, ErrNoIOContext
|
|
}
|
|
if namespaceName == "" {
|
|
return false, ErrNoNamespaceName
|
|
}
|
|
cNamespaceName := C.CString(namespaceName)
|
|
defer C.free(unsafe.Pointer(cNamespaceName))
|
|
|
|
var exists C.bool
|
|
ret := C.rbd_namespace_exists(cephIoctx(ioctx), cNamespaceName, &exists)
|
|
return bool(exists), getErrorIfNegative(ret)
|
|
}
|
|
|
|
// NamespaceList returns a slice containing the names of existing rbd namespaces.
|
|
//
|
|
// Implements:
|
|
// int rbd_namespace_list(rados_ioctx_t io, char *namespace_names, size_t *size);
|
|
func NamespaceList(ioctx *rados.IOContext) (names []string, err error) {
|
|
if ioctx == nil {
|
|
return nil, ErrNoIOContext
|
|
}
|
|
var (
|
|
buf []byte
|
|
cSize C.size_t
|
|
)
|
|
retry.WithSizes(4096, 262144, func(size int) retry.Hint {
|
|
cSize = C.size_t(size)
|
|
buf = make([]byte, cSize)
|
|
ret := C.rbd_namespace_list(cephIoctx(ioctx),
|
|
(*C.char)(unsafe.Pointer(&buf[0])),
|
|
&cSize)
|
|
err = getErrorIfNegative(ret)
|
|
return retry.Size(int(cSize)).If(err == errRange)
|
|
})
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
names = cutil.SplitSparseBuffer(buf[:cSize])
|
|
return names, nil
|
|
}
|