X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fdbus-common.h;h=15811a7e50dc5e8a0dd62e84442ba1c801569512;hp=acd9208d66b85859ef08d1a9acdd59cd633d554f;hb=b47ffcfdfd46de119e0fe8d1c48105bd7c21ddd4;hpb=ad740100d108282d0244d5739d4dcc86fe4c5fde

diff --git a/src/dbus-common.h b/src/dbus-common.h
index acd9208d6..15811a7e5 100644
--- a/src/dbus-common.h
+++ b/src/dbus-common.h
@@ -96,14 +96,22 @@ typedef int (*BusPropertyCallback)(DBusMessageIter *iter, const char *property,
 typedef int (*BusPropertySetCallback)(DBusMessageIter *iter, const char *property);
 
 typedef struct BusProperty {
-        const char *interface;           /* interface of the property */
         const char *property;            /* name of the property */
         BusPropertyCallback append;      /* Function that is called to serialize this property */
         const char *signature;
-        const void *data;                /* The data of this property */
+        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,
@@ -115,11 +123,12 @@ DBusHandlerResult bus_default_message_handler(
                 DBusMessage *message,
                 const char *introspection,
                 const char *interfaces,
-                const BusProperty *properties);
+                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);