marshal: add a way to ignore a pointer (setting it to NULL)

[thirdparty/lldpd.git] / src / marshal.h

diff --git a/src/marshal.h b/src/marshal.h
index cac9e682320e57c4ff7ce6d8a062950bfe29f5e9..74640306e54f9b9c0dd7c896b0615c805a46b926 100644 (file)
--- a/src/marshal.h
+++ b/src/marshal.h
@@ -21,6 +21,7 @@ struct marshal_info;
 enum marshal_subinfo_kind {
        pointer,
        substruct,
+       ignore,
 };
 #define MARSHAL_INFO_POINTER 1
 #define MARSHAL_INFO_SUB     2
@@ -38,6 +39,7 @@ struct marshal_info {
 /* Special case for strings */
 extern struct marshal_info marshal_info__string;
 extern struct marshal_info marshal_info__fstring;
+extern struct marshal_info marshal_info__ignore;
 
 /* Declare a new marshal_info struct named after the type we want to
    marshal. The marshalled type has to be a structure. */
@@ -58,6 +60,7 @@ extern struct marshal_info marshal_info__fstring;
          .offset2 = offsetof(struct type, len),                \
          .kind = pointer,                                      \
          .mi = &marshal_info__fstring },
+#define MARSHAL_IGNORE(type, member) MARSHAL_ADD(ignore, type, _ignore, member)
 #define MARSHAL_TQE(type, field)                        \
        MARSHAL_POINTER(type, type, field.tqe_next)      \
        MARSHAL_POINTER(type, type, field.tqe_prev)