1 files changed, 17 insertions, 16 deletions
diff --git a/src/login/logind-session.h b/src/login/logind-session.h
index 7598afa618..a73df3a3bc 100644
--- a/src/login/logind-session.h
+++ b/src/login/logind-session.h
@@ -37,22 +37,23 @@ typedef enum SessionState {
         _SESSION_STATE_INVALID = -1
 } SessionState;
 
-typedef enum SessionType {
-        SESSION_UNSPECIFIED,
-        SESSION_TTY,
-        SESSION_X11,
-        _SESSION_TYPE_MAX,
-        _SESSION_TYPE_INVALID = -1
-} SessionType;
-
 typedef enum SessionClass {
         SESSION_USER,
         SESSION_GREETER,
         SESSION_LOCK_SCREEN,
+        SESSION_BACKGROUND,
         _SESSION_CLASS_MAX,
         _SESSION_CLASS_INVALID = -1
 } SessionClass;
 
+typedef enum SessionType {
+        SESSION_UNSPECIFIED,
+        SESSION_TTY,
+        SESSION_X11,
+        _SESSION_TYPE_MAX,
+        _SESSION_TYPE_INVALID = -1
+} SessionType;
+
 typedef enum KillWho {
         KILL_LEADER,
         KILL_ALL,
@@ -134,14 +135,14 @@ int session_send_changed(Session *s, const char *properties);
 int session_send_lock(Session *s, bool lock);
 int session_send_lock_all(Manager *m, bool lock);
 
-const char* session_state_to_string(SessionState t);
-SessionState session_state_from_string(const char *s);
+const char* session_state_to_string(SessionState t) _const_;
+SessionState session_state_from_string(const char *s) _pure_;
 
-const char* session_type_to_string(SessionType t);
-SessionType session_type_from_string(const char *s);
+const char* session_type_to_string(SessionType t) _const_;
+SessionType session_type_from_string(const char *s) _pure_;
 
-const char* session_class_to_string(SessionClass t);
-SessionClass session_class_from_string(const char *s);
+const char* session_class_to_string(SessionClass t) _const_;
+SessionClass session_class_from_string(const char *s) _pure_;
 
-const char *kill_who_to_string(KillWho k);
-KillWho kill_who_from_string(const char *s);
+const char *kill_who_to_string(KillWho k) _const_;
+KillWho kill_who_from_string(const char *s) _pure_;