mirror of
https://github.com/systemd/systemd.git
synced 2024-11-06 08:26:52 +03:00
e8630e6952
This reworks how we load units from disk. Instead of chasing symlinks every
time we are asked to load a unit by name, we slurp all symlinks from disk
and build two hashmaps:
1. from unit name to either alias target, or fragment on disk
(if an alias, we put just the target name in the hashmap, if a fragment
we put an absolute path, so we can distinguish both).
2. from a unit name to all aliases
Reading all this data can be pretty costly (40 ms) on my machine, so we keep it
around for reuse.
The advantage is that we can reliably know what all the aliases of a given unit
are. This means we can reliably load dropins under all names. This fixes #11972.
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
|
|
#pragma once
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include "hashmap.h"
|
|
#include "unit-name.h"
|
|
|
|
typedef enum UnitFileState UnitFileState;
|
|
typedef enum UnitFileScope UnitFileScope;
|
|
typedef struct LookupPaths LookupPaths;
|
|
|
|
enum UnitFileState {
|
|
UNIT_FILE_ENABLED,
|
|
UNIT_FILE_ENABLED_RUNTIME,
|
|
UNIT_FILE_LINKED,
|
|
UNIT_FILE_LINKED_RUNTIME,
|
|
UNIT_FILE_MASKED,
|
|
UNIT_FILE_MASKED_RUNTIME,
|
|
UNIT_FILE_STATIC,
|
|
UNIT_FILE_DISABLED,
|
|
UNIT_FILE_INDIRECT,
|
|
UNIT_FILE_GENERATED,
|
|
UNIT_FILE_TRANSIENT,
|
|
UNIT_FILE_BAD,
|
|
_UNIT_FILE_STATE_MAX,
|
|
_UNIT_FILE_STATE_INVALID = -1
|
|
};
|
|
|
|
enum UnitFileScope {
|
|
UNIT_FILE_SYSTEM,
|
|
UNIT_FILE_GLOBAL,
|
|
UNIT_FILE_USER,
|
|
_UNIT_FILE_SCOPE_MAX,
|
|
_UNIT_FILE_SCOPE_INVALID = -1
|
|
};
|
|
|
|
bool unit_type_may_alias(UnitType type) _const_;
|
|
bool unit_type_may_template(UnitType type) _const_;
|
|
|
|
int unit_validate_alias_symlink_and_warn(const char *filename, const char *target);
|
|
|
|
int unit_file_build_name_map(
|
|
const LookupPaths *lp,
|
|
Hashmap **ret_unit_ids_map,
|
|
Hashmap **ret_unit_names_map,
|
|
Set **ret_path_cache);
|
|
|
|
int unit_file_find_fragment(
|
|
Hashmap *unit_ids_map,
|
|
Hashmap *unit_name_map,
|
|
const char *unit_name,
|
|
const char **ret_fragment_path,
|
|
Set **names);
|