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/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
This file is part of systemd.
Copyright 2014 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdbool.h>
#include <stdint.h>
#include "hashmap.h"
#include "lockfile-util.h"
#include "macro.h"
#include "path-util.h"
#include "string-util.h"
#include "time-util.h"
typedef enum ImageType {
IMAGE_DIRECTORY,
IMAGE_SUBVOLUME,
IMAGE_RAW,
IMAGE_BLOCK,
_IMAGE_TYPE_MAX,
_IMAGE_TYPE_INVALID = -1
} ImageType;
typedef struct Image {
ImageType type;
char *name;
char *path;
bool read_only;
usec_t crtime;
usec_t mtime;
uint64_t usage;
uint64_t usage_exclusive;
uint64_t limit;
uint64_t limit_exclusive;
void *userdata;
} Image;
Image *image_unref(Image *i);
void image_hashmap_free(Hashmap *map);
DEFINE_TRIVIAL_CLEANUP_FUNC(Image*, image_unref);
DEFINE_TRIVIAL_CLEANUP_FUNC(Hashmap*, image_hashmap_free);
int image_find(const char *name, Image **ret);
int image_discover(Hashmap *map);
int image_remove(Image *i);
int image_rename(Image *i, const char *new_name);
int image_clone(Image *i, const char *new_name, bool read_only);
int image_read_only(Image *i, bool b);
const char* image_type_to_string(ImageType t) _const_;
ImageType image_type_from_string(const char *s) _pure_;
bool image_name_is_valid(const char *s) _pure_;
int image_path_lock(const char *path, int operation, LockFile *global, LockFile *local);
int image_name_lock(const char *name, int operation, LockFile *ret);
int image_set_limit(Image *i, uint64_t referenced_max);
static inline bool IMAGE_IS_HIDDEN(const struct Image *i) {
assert(i);
return i->name && i->name[0] == '.';
}
static inline bool IMAGE_IS_VENDOR(const struct Image *i) {
assert(i);
return i->path && path_startswith(i->path, "/usr");
}
static inline bool IMAGE_IS_HOST(const struct Image *i) {
assert(i);
if (i->name && streq(i->name, ".host"))
return true;
if (i->path && path_equal(i->path, "/"))
return true;
return false;
}
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