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-rw-r--r--src/libshared/install.h132
1 files changed, 116 insertions, 16 deletions
diff --git a/src/libshared/install.h b/src/libshared/install.h
index c1a43e23e7..c6aa4f6ef1 100644
--- a/src/libshared/install.h
+++ b/src/libshared/install.h
@@ -54,6 +54,8 @@ enum UnitFileState {
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
@@ -70,16 +72,30 @@ enum UnitFilePresetMode {
enum UnitFileChangeType {
UNIT_FILE_SYMLINK,
UNIT_FILE_UNLINK,
+ UNIT_FILE_IS_MASKED,
+ UNIT_FILE_IS_DANGLING,
_UNIT_FILE_CHANGE_TYPE_MAX,
- _UNIT_FILE_CHANGE_TYPE_INVALID = -1
+ _UNIT_FILE_CHANGE_INVALID = INT_MIN
};
+/* type can either one of the UnitFileChangeTypes listed above, or a negative error.
+ * If source is specified, it should be the contents of the path symlink.
+ * In case of an error, source should be the existing symlink contents or NULL
+ */
struct UnitFileChange {
- UnitFileChangeType type;
+ int type; /* UnitFileChangeType or bust */
char *path;
char *source;
};
+static inline bool unit_file_changes_have_modification(const UnitFileChange* changes, unsigned n_changes) {
+ unsigned i;
+ for (i = 0; i < n_changes; i++)
+ if (IN_SET(changes[i].type, UNIT_FILE_SYMLINK, UNIT_FILE_UNLINK))
+ return true;
+ return false;
+}
+
struct UnitFileList {
char *path;
UnitFileState state;
@@ -123,31 +139,115 @@ static inline bool UNIT_FILE_INSTALL_INFO_HAS_ALSO(UnitFileInstallInfo *i) {
return !strv_isempty(i->also);
}
-int unit_file_enable(UnitFileScope scope, bool runtime, const char *root_dir, char **files, bool force, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_disable(UnitFileScope scope, bool runtime, const char *root_dir, char **files, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_reenable(UnitFileScope scope, bool runtime, const char *root_dir, char **files, bool force, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_link(UnitFileScope scope, bool runtime, const char *root_dir, char **files, bool force, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_preset(UnitFileScope scope, bool runtime, const char *root_dir, char **files, UnitFilePresetMode mode, bool force, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_preset_all(UnitFileScope scope, bool runtime, const char *root_dir, UnitFilePresetMode mode, bool force, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_mask(UnitFileScope scope, bool runtime, const char *root_dir, char **files, bool force, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_unmask(UnitFileScope scope, bool runtime, const char *root_dir, char **files, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_set_default(UnitFileScope scope, const char *root_dir, const char *file, bool force, UnitFileChange **changes, unsigned *n_changes);
-int unit_file_get_default(UnitFileScope scope, const char *root_dir, char **name);
-int unit_file_add_dependency(UnitFileScope scope, bool runtime, const char *root_dir, char **files, const char *target, UnitDependency dep, bool force, UnitFileChange **changes, unsigned *n_changes);
-
-int unit_file_lookup_state(UnitFileScope scope, const char *root_dir,const LookupPaths *paths, const char *name, UnitFileState *ret);
+bool unit_type_may_alias(UnitType type) _const_;
+bool unit_type_may_template(UnitType type) _const_;
+
+int unit_file_enable(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ char **files,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_disable(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_reenable(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ char **files,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_preset(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ char **files,
+ UnitFilePresetMode mode,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_preset_all(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ UnitFilePresetMode mode,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_mask(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ char **files,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_unmask(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_link(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ char **files,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_revert(
+ UnitFileScope scope,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_set_default(
+ UnitFileScope scope,
+ const char *root_dir,
+ const char *file,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_get_default(
+ UnitFileScope scope,
+ const char *root_dir,
+ char **name);
+int unit_file_add_dependency(
+ UnitFileScope scope,
+ bool runtime,
+ const char *root_dir,
+ char **files,
+ const char *target,
+ UnitDependency dep,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+
int unit_file_get_state(UnitFileScope scope, const char *root_dir, const char *filename, UnitFileState *ret);
+int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name);
-int unit_file_get_list(UnitFileScope scope, const char *root_dir, Hashmap *h);
+int unit_file_get_list(UnitFileScope scope, const char *root_dir, Hashmap *h, char **states, char **patterns);
Hashmap* unit_file_list_free(Hashmap *h);
int unit_file_changes_add(UnitFileChange **changes, unsigned *n_changes, UnitFileChangeType type, const char *path, const char *source);
void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes);
+void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, unsigned n_changes, bool quiet);
int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name);
const char *unit_file_state_to_string(UnitFileState s) _const_;
UnitFileState unit_file_state_from_string(const char *s) _pure_;
+/* from_string conversion is unreliable because of the overlap between -EPERM and -1 for error. */
const char *unit_file_change_type_to_string(UnitFileChangeType s) _const_;
UnitFileChangeType unit_file_change_type_from_string(const char *s) _pure_;