core: Update prototype of notify_message, tags list is read only

[thirdparty/systemd.git] / src / core / unit.h

diff --git a/src/core/unit.h b/src/core/unit.h
index e38871a97c0d02599b3e2bd55304f15f43a992a9..4ad429bf30920911ecf7b75d478e421e7711e368 100644 (file)
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -114,6 +114,9 @@ typedef struct Unit {
         UnitLoadState load_state;
         Unit *merged_into;
 
+        FreezerState freezer_state;
+        sd_bus_message *pending_freezer_message;
+
         char *id; /* One name is special because we use it for identification. Points to an entry in the names set */
         char *instance;
 
@@ -483,6 +486,11 @@ typedef struct UnitVTable {
         /* Clear out the various runtime/state/cache/logs/configuration data */
         int (*clean)(Unit *u, ExecCleanMask m);
 
+        /* Freeze the unit */
+        int (*freeze)(Unit *u);
+        int (*thaw)(Unit *u);
+        bool (*can_freeze)(Unit *u);
+
         /* Return which kind of data can be cleaned */
         int (*can_clean)(Unit *u, ExecCleanMask *ret);
 
@@ -531,7 +539,7 @@ typedef struct UnitVTable {
         void (*notify_cgroup_oom)(Unit *u);
 
         /* Called whenever a process of this unit sends us a message */
-        void (*notify_message)(Unit *u, const struct ucred *ucred, char **tags, FDSet *fds);
+        void (*notify_message)(Unit *u, const struct ucred *ucred, char * const *tags, FDSet *fds);
 
         /* Called whenever a name this Unit registered for comes or goes away. */
         void (*bus_name_owner_change)(Unit *u, const char *new_owner);
@@ -592,9 +600,6 @@ typedef struct UnitVTable {
          * of this type will immediately fail. */
         bool (*supported)(void);
 
-        /* The bus vtable */
-        const sd_bus_vtable *bus_vtable;
-
         /* The strings to print in status messages */
         UnitStatusMessageFormats status_message_formats;
 
@@ -695,6 +700,8 @@ const char *unit_status_string(Unit *u) _pure_;
 bool unit_has_name(const Unit *u, const char *name);
 
 UnitActiveState unit_active_state(Unit *u);
+FreezerState unit_freezer_state(Unit *u);
+int unit_freezer_state_kernel(Unit *u, FreezerState *ret);
 
 const char* unit_sub_state_to_string(Unit *u);
 
@@ -878,6 +885,16 @@ void unit_destroy_runtime_directory(Unit *u, const ExecContext *context);
 int unit_clean(Unit *u, ExecCleanMask mask);
 int unit_can_clean(Unit *u, ExecCleanMask *ret_mask);
 
+bool unit_can_freeze(Unit *u);
+int unit_freeze(Unit *u);
+void unit_frozen(Unit *u);
+
+int unit_thaw(Unit *u);
+void unit_thawed(Unit *u);
+
+int unit_freeze_vtable_common(Unit *u);
+int unit_thaw_vtable_common(Unit *u);
+
 /* Macros which append UNIT= or USER_UNIT= to the message */
 
 #define log_unit_full(unit, level, error, ...)                          \