[thirdparty/systemd.git] / src / shared / loop-util.h

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once

/***
  Copyright 2016 Lennart Poettering
***/

#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, LoopDevice **ret);
int loop_device_make_by_path(const char *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);
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
8c1be37e LP	2	#pragma once
	3
	4	/***
8c1be37e	5	Copyright 2016 Lennart Poettering
8c1be37e LP	6	***/
	7
	8	#include "macro.h"
	9
	10	typedef struct LoopDevice LoopDevice;
	11
	12	/* Some helpers for setting up loopback block devices */
	13
	14	struct LoopDevice {
	15	int fd;
	16	int nr;
	17	char *node;
a2ea3b2f	18	bool relinquished;
8c1be37e LP	19	};
	20
	21	int loop_device_make(int fd, int open_flags, LoopDevice **ret);
	22	int loop_device_make_by_path(const char path, int open_flags, LoopDevice *ret);
	23
	24	LoopDevice* loop_device_unref(LoopDevice *d);
8c1be37e	25	DEFINE_TRIVIAL_CLEANUP_FUNC(LoopDevice*, loop_device_unref);
a2ea3b2f LP	26
a2ea3b2f LP	27	void loop_device_relinquish(LoopDevice *d);