DBusMessage: add support for custom marshalingbaserock/genivi/dbus-1.9.4

Add functions to support querying and manipulating the message body and
signature. This is useful for code generators, which can generate custom
marshaling functions based on a given IDL. Those functions tend to be
optimized and faster than the generic iterator based marshaling.

1 files changed, 16 insertions, 0 deletions

diff --git a/dbus/dbus-string.c b/dbus/dbus-string.c
index 15cff9c6..25b1d003 100644
--- a/dbus/dbus-string.c
+++ b/dbus/dbus-string.c
@@ -744,6 +744,22 @@ _dbus_string_get_length (const DBusString  *str)
 }
 #endif /* !_dbus_string_get_length */
 
+/* Only have the function if we don't have the macro */
+#ifndef _dbus_string_get_allocated
+/**
+ * Gets the allocated length of a string (not including nul termination).
+ *
+ * @returns the allocated length.
+ */
+int
+_dbus_string_get_allocated(const DBusString  *str)
+{
+  DBUS_CONST_STRING_PREAMBLE (str);
+
+  return real->allocated;
+}
+#endif /* !_dbus_string_get_allocated */
+
 /**
  * Makes a string longer by the given number of bytes.  Checks whether
  * adding additional_length to the current length would overflow an