#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_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; }