30 lines
904 B
C
30 lines
904 B
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
#pragma once
|
|
|
|
#include "macro.h"
|
|
|
|
typedef struct LoopDevice LoopDevice;
|
|
|
|
/* Some helpers for setting up loopback block devices */
|
|
|
|
struct LoopDevice {
|
|
int fd;
|
|
int nr;
|
|
char *node;
|
|
bool relinquished;
|
|
};
|
|
|
|
int loop_device_make(int fd, int open_flags, uint64_t offset, uint64_t size, uint32_t loop_flags, LoopDevice **ret);
|
|
int loop_device_make_by_path(const char *path, int open_flags, uint32_t loop_flags, LoopDevice **ret);
|
|
int loop_device_open(const char *loop_path, int open_flags, LoopDevice **ret);
|
|
|
|
LoopDevice* loop_device_unref(LoopDevice *d);
|
|
DEFINE_TRIVIAL_CLEANUP_FUNC(LoopDevice*, loop_device_unref);
|
|
|
|
void loop_device_relinquish(LoopDevice *d);
|
|
|
|
int loop_device_refresh_size(LoopDevice *d, uint64_t offset, uint64_t size);
|
|
|
|
int loop_device_flock(LoopDevice *d, int operation);
|
|
int loop_device_sync(LoopDevice *d);
|