+typedef int (*BusPropertyCallback)(DBusMessageIter *iter, const char *property, void *data);
+typedef int (*BusPropertySetCallback)(DBusMessageIter *iter, const char *property);
+
+typedef struct BusProperty {
+ const char *property; /* name of the property */
+ BusPropertyCallback append; /* Function that is called to serialize this property */
+ const char *signature;
+ const uint16_t offset; /* Offset from BusBoundProperties::base address to the property data.
+ * uint16_t is sufficient, because we have no structs too big.
+ * -Werror=overflow will catch it if this does not hold. */
+ bool indirect; /* data is indirect, ie. not base+offset, but *(base+offset) */
+ BusPropertySetCallback set; /* Optional: Function that is called to set this property */
+} BusProperty;
+
+typedef struct BusBoundProperties {
+ const char *interface; /* interface of the properties */
+ const BusProperty *properties; /* array of properties, ended by a NULL-filled element */
+ const void *const base; /* base pointer to which the offset must be added to reach data */
+} BusBoundProperties;
+
+DBusHandlerResult bus_send_error_reply(
+ DBusConnection *c,
+ DBusMessage *message,
+ DBusError *bus_error,
+ int error);
+
+DBusHandlerResult bus_default_message_handler(
+ DBusConnection *c,
+ DBusMessage *message,
+ const char *introspection,
+ const char *interfaces,
+ const BusBoundProperties *bound_properties);
+
+int bus_property_append_string(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_strv(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_bool(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_tristate_false(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_int32(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_uint32(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_uint64(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_size(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_ul(DBusMessageIter *i, const char *property, void *data);
+int bus_property_append_long(DBusMessageIter *i, const char *property, void *data);
+
+#define bus_property_append_int bus_property_append_int32
+#define bus_property_append_pid bus_property_append_uint32
+#define bus_property_append_uid bus_property_append_uint32
+#define bus_property_append_gid bus_property_append_uint32
+#define bus_property_append_mode bus_property_append_uint32
+#define bus_property_append_unsigned bus_property_append_uint32
+#define bus_property_append_usec bus_property_append_uint64
+
+#define DEFINE_BUS_PROPERTY_APPEND_ENUM(function,name,type) \
+ int function(DBusMessageIter *i, const char *property, void *data) { \
+ const char *value; \
+ type *field = data; \
+ \
+ assert(i); \
+ assert(property); \
+ \
+ value = name##_to_string(*field); \
+ \
+ if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &value)) \
+ return -ENOMEM; \
+ \
+ return 0; \
+ }
+
+const char *bus_errno_to_dbus(int error);
+
+DBusMessage* bus_properties_changed_new(const char *path, const char *interface, const char *properties);
+
+uint32_t bus_flags_to_events(DBusWatch *bus_watch);
+unsigned bus_events_to_flags(uint32_t events);
+
+int bus_parse_strv(DBusMessage *m, char ***_l);
+int bus_parse_strv_iter(DBusMessageIter *iter, char ***_l);
+
+int bus_append_strv_iter(DBusMessageIter *iter, char **l);
+
+int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next);
+
+int generic_print_property(const char *name, DBusMessageIter *iter, bool all);
+
+void bus_async_unregister_and_exit(DBusConnection *bus, const char *name);
+
+DBusHandlerResult bus_exit_idle_filter(DBusConnection *bus, DBusMessage *m, void *userdata);
+