Add ctf_enum_auto() for autoincrementing enumeration values

[lttng-ust.git] / include / lttng / ust-tracepoint-event.h

diff --git a/include/lttng/ust-tracepoint-event.h b/include/lttng/ust-tracepoint-event.h
index 2b703dc57ce2b5c522ccdb8faad5c208178d833a..0b4e5a262b537ea7de75b4502a83c7480a5c9d27 100644 (file)
--- a/include/lttng/ust-tracepoint-event.h
+++ b/include/lttng/ust-tracepoint-event.h
@@ -161,6 +161,26 @@ static const char                                                  \
                .string = (_string),                                    \
        },
 
+/* Enumeration entry (automatic value; follows the rules of CTF) */
+#undef ctf_enum_auto
+#define ctf_enum_auto(_string)                                 \
+       {                                                               \
+               .start = {                                              \
+                       .value = -1ULL,                                 \
+                       .signedness = 0,                                \
+               },                                                      \
+               .end = {                                                \
+                       .value = -1ULL,                                 \
+                       .signedness = 0,                                \
+               },                                                      \
+               .string = (_string),                                    \
+               .u = {                                                  \
+                       .extra = {                                      \
+                               .options = LTTNG_ENUM_ENTRY_OPTION_IS_AUTO, \
+                       },                                              \
+               },                                                      \
+       },
+
 #undef TP_ENUM_VALUES
 #define TP_ENUM_VALUES(...)                                            \
        __VA_ARGS__