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ceph-csi/vendor/github.com/ceph/go-ceph/cephfs/path.go
Riya Singhal 4ccb299fd5 rebase: update github.com/ceph/go-ceph to master
this commit updates the version of go-ceph imported to
latest, so we can make use of github.com/ceph/go-ceph/cephfs

Signed-off-by: Riya Singhal <rsinghal@redhat.com>
2023-11-23 00:55:17 +00:00

202 lines
4.7 KiB
Go

package cephfs
/*
#cgo LDFLAGS: -lcephfs
#cgo CPPFLAGS: -D_FILE_OFFSET_BITS=64
#include <stdlib.h>
#include <cephfs/libcephfs.h>
*/
import "C"
import (
"unsafe"
)
// CurrentDir gets the current working directory.
func (mount *MountInfo) CurrentDir() string {
if err := mount.validate(); err != nil {
return ""
}
cDir := C.ceph_getcwd(mount.mount)
return C.GoString(cDir)
}
// ChangeDir changes the current working directory.
func (mount *MountInfo) ChangeDir(path string) error {
if err := mount.validate(); err != nil {
return err
}
cPath := C.CString(path)
defer C.free(unsafe.Pointer(cPath))
ret := C.ceph_chdir(mount.mount, cPath)
return getError(ret)
}
// MakeDir creates a directory.
func (mount *MountInfo) MakeDir(path string, mode uint32) error {
if err := mount.validate(); err != nil {
return err
}
cPath := C.CString(path)
defer C.free(unsafe.Pointer(cPath))
ret := C.ceph_mkdir(mount.mount, cPath, C.mode_t(mode))
return getError(ret)
}
// RemoveDir removes a directory.
func (mount *MountInfo) RemoveDir(path string) error {
if err := mount.validate(); err != nil {
return err
}
cPath := C.CString(path)
defer C.free(unsafe.Pointer(cPath))
ret := C.ceph_rmdir(mount.mount, cPath)
return getError(ret)
}
// Unlink removes a file.
//
// Implements:
//
// int ceph_unlink(struct ceph_mount_info *cmount, const char *path);
func (mount *MountInfo) Unlink(path string) error {
if err := mount.validate(); err != nil {
return err
}
cPath := C.CString(path)
defer C.free(unsafe.Pointer(cPath))
ret := C.ceph_unlink(mount.mount, cPath)
return getError(ret)
}
// Link creates a new link to an existing file.
//
// Implements:
//
// int ceph_link (struct ceph_mount_info *cmount, const char *existing, const char *newname);
func (mount *MountInfo) Link(oldname, newname string) error {
if err := mount.validate(); err != nil {
return err
}
cOldname := C.CString(oldname)
defer C.free(unsafe.Pointer(cOldname))
cNewname := C.CString(newname)
defer C.free(unsafe.Pointer(cNewname))
ret := C.ceph_link(mount.mount, cOldname, cNewname)
return getError(ret)
}
// Symlink creates a symbolic link to an existing path.
//
// Implements:
//
// int ceph_symlink(struct ceph_mount_info *cmount, const char *existing, const char *newname);
func (mount *MountInfo) Symlink(existing, newname string) error {
if err := mount.validate(); err != nil {
return err
}
cExisting := C.CString(existing)
defer C.free(unsafe.Pointer(cExisting))
cNewname := C.CString(newname)
defer C.free(unsafe.Pointer(cNewname))
ret := C.ceph_symlink(mount.mount, cExisting, cNewname)
return getError(ret)
}
// Readlink returns the value of a symbolic link.
//
// Implements:
//
// int ceph_readlink(struct ceph_mount_info *cmount, const char *path, char *buf, int64_t size);
func (mount *MountInfo) Readlink(path string) (string, error) {
if err := mount.validate(); err != nil {
return "", err
}
cPath := C.CString(path)
defer C.free(unsafe.Pointer(cPath))
buf := make([]byte, 4096)
ret := C.ceph_readlink(mount.mount,
cPath,
(*C.char)(unsafe.Pointer(&buf[0])),
C.int64_t(len(buf)))
if ret < 0 {
return "", getError(ret)
}
return string(buf[:ret]), nil
}
// Statx returns information about a file/directory.
//
// Implements:
//
// int ceph_statx(struct ceph_mount_info *cmount, const char *path, struct ceph_statx *stx,
// unsigned int want, unsigned int flags);
func (mount *MountInfo) Statx(path string, want StatxMask, flags AtFlags) (*CephStatx, error) {
if err := mount.validate(); err != nil {
return nil, err
}
cPath := C.CString(path)
defer C.free(unsafe.Pointer(cPath))
var stx C.struct_ceph_statx
ret := C.ceph_statx(
mount.mount,
cPath,
&stx,
C.uint(want),
C.uint(flags),
)
if err := getError(ret); err != nil {
return nil, err
}
return cStructToCephStatx(stx), nil
}
// Rename a file or directory.
//
// Implements:
//
// int ceph_rename(struct ceph_mount_info *cmount, const char *from, const char *to);
func (mount *MountInfo) Rename(from, to string) error {
if err := mount.validate(); err != nil {
return err
}
cFrom := C.CString(from)
defer C.free(unsafe.Pointer(cFrom))
cTo := C.CString(to)
defer C.free(unsafe.Pointer(cTo))
ret := C.ceph_rename(mount.mount, cFrom, cTo)
return getError(ret)
}
// Truncate sets the size of the specified file.
//
// Implements:
//
// int ceph_truncate(struct ceph_mount_info *cmount, const char *path, int64_t size);
func (mount *MountInfo) Truncate(path string, size int64) error {
if err := mount.validate(); err != nil {
return err
}
cPath := C.CString(path)
defer C.free(unsafe.Pointer(cPath))
ret := C.ceph_truncate(
mount.mount,
cPath,
C.int64_t(size),
)
return getError(ret)
}