unit: save description/slice of transient units to /run

[elogind.git] / src / core / unit.h

diff --git a/src/core/unit.h b/src/core/unit.h
index fbcaabe167ed346276c7523e311d59b6bec05952..ed4df182469e2782b59e918dc85c723efb4bb6c7 100644 (file)
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -241,6 +241,9 @@ struct Unit {
         /* Did the last condition check succeed? */
         bool condition_result;
 
+        /* Is this a transient unit? */
+        bool transient;
+
         bool in_load_queue:1;
         bool in_dbus_queue:1;
         bool in_cleanup_queue:1;
@@ -260,6 +263,12 @@ struct UnitStatusMessageFormats {
         const char *finished_stop_job[_JOB_RESULT_MAX];
 };
 
+typedef enum UnitSetPropertiesMode {
+        UNIT_CHECK = 0,
+        UNIT_RUNTIME = 1,
+        UNIT_PERSISTENT = 2,
+} UnitSetPropertiesMode;
+
 #include "service.h"
 #include "timer.h"
 #include "socket.h"
@@ -271,6 +280,7 @@ struct UnitStatusMessageFormats {
 #include "swap.h"
 #include "path.h"
 #include "slice.h"
+#include "scope.h"
 
 struct UnitVTable {
         /* How much memory does an object of this unit type need */
@@ -372,6 +382,12 @@ struct UnitVTable {
         /* Called for each message received on the bus */
         DBusHandlerResult (*bus_message_handler)(Unit *u, DBusConnection *c, DBusMessage *message);
 
+        /* Called for each property that is being set */
+        int (*bus_set_property)(Unit *u, const char *name, DBusMessageIter *i, UnitSetPropertiesMode mode, DBusError *error);
+
+        /* Called after at least one property got changed to apply the necessary change */
+        int (*bus_commit_properties)(Unit *u);
+
         /* Return the unit this unit is following */
         Unit *(*following)(Unit *u);
 
@@ -413,6 +429,9 @@ struct UnitVTable {
 
         /* Exclude from automatic gc */
         bool no_gc:1;
+
+        /* True if transient units of this type are OK */
+        bool can_transient:1;
 };
 
 extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX];
@@ -444,6 +463,7 @@ DEFINE_CAST(SNAPSHOT, Snapshot);
 DEFINE_CAST(SWAP, Swap);
 DEFINE_CAST(PATH, Path);
 DEFINE_CAST(SLICE, Slice);
+DEFINE_CAST(SCOPE, Scope);
 
 Unit *unit_new(Manager *m, size_t size);
 void unit_free(Unit *u);
@@ -577,11 +597,14 @@ int unit_exec_context_defaults(Unit *u, ExecContext *c);
 ExecContext *unit_get_exec_context(Unit *u) _pure_;
 CGroupContext *unit_get_cgroup_context(Unit *u) _pure_;
 
-int unit_write_drop_in(Unit *u, bool runtime, const char *name, const char *data);
-int unit_remove_drop_in(Unit *u, bool runtime, const char *name);
+int unit_write_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data);
+int unit_write_drop_in_private_section(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data);
+int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name);
 
 int unit_kill_context(Unit *u, KillContext *c, bool sigkill, pid_t main_pid, pid_t control_pid, bool main_pid_alien);
 
+int unit_make_transient(Unit *u);
+
 const char *unit_active_state_to_string(UnitActiveState i) _const_;
 UnitActiveState unit_active_state_from_string(const char *s) _pure_;