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authorLennart Poettering <lennart@poettering.net>2016-04-19 17:21:18 +0200
committerLennart Poettering <lennart@poettering.net>2016-04-19 17:21:18 +0200
commit0c1792efe422622c3c8a11b70a722147304da4cb (patch)
tree56aa22070f066ff3636625b2e0a70f7ced73450a /src/shared/install.h
parent0c7739039b090a2c1f8c894c0e6eb75fc25663a0 (diff)
parent5cfde70c6e7c8afcd2c9cdb3505301c3e6cde6da (diff)
Merge pull request #3055 from keszybz/preset-fixes
Another bunch of improvements to the installation code
Diffstat (limited to 'src/shared/install.h')
-rw-r--r--src/shared/install.h124
1 files changed, 106 insertions, 18 deletions
diff --git a/src/shared/install.h b/src/shared/install.h
index 6b760def9b..4133faffa2 100644
--- a/src/shared/install.h
+++ b/src/shared/install.h
@@ -74,19 +74,27 @@ enum UnitFileChangeType {
UNIT_FILE_UNLINK,
UNIT_FILE_IS_MASKED,
_UNIT_FILE_CHANGE_TYPE_MAX,
- _UNIT_FILE_CHANGE_TYPE_INVALID = -1
+ _UNIT_FILE_CHANGE_INVALID = INT_MIN
};
-static inline bool unit_file_change_is_modification(UnitFileChangeType type) {
- return IN_SET(type, UNIT_FILE_SYMLINK, UNIT_FILE_UNLINK);
-}
-
+/* 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;
@@ -130,18 +138,96 @@ 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_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_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);
@@ -151,11 +237,13 @@ 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_;