MINOR: trace: Add a set of macros to trace events if HA is compiled with debug

The macros DBG_TRACE_*() can be used instead of existing trace macros to emit
trace messages in debug mode only, ie, when HAProxy is compiled with DEBUG_FULL
or DEBUG_DEV. Otherwise, these macros do nothing. So it is possible to add
traces for development purpose without impacting performance of production
instances.

diff --git a/include/proto/trace.h b/include/proto/trace.h
index 4ef13078cf4c3df8df6be385b4bf20bbdab0455b..ece23293bdc3e75210afbf8e8ba96bf4339f412b 100644 (file)
--- a/include/proto/trace.h
+++ b/include/proto/trace.h
@@ -77,6 +77,28 @@
 #define TRACE_POINT(mask, ...)  \
        trace(TRACE_LEVEL_DEVELOPER, (mask), TRACE_SOURCE, ist(TRC_LOC), __FUNCTION__, TRC_5ARGS(__VA_ARGS__,,,,,), ist("in"))
 
+#if defined(DEBUG_DEV) || defined(DEBUG_FULL)
+#    define DBG_TRACE(msg, mask, ...)        TRACE(msg, mask, __VA_ARGS__)
+#    define DBG_TRACE_USER(msg, mask, ...)   TRACE_USER(msg, mask, __VA_ARGS__)
+#    define DBG_TRACE_DATA(msg, mask, ...)   TRACE_DATA(msg, mask, __VA_ARGS__)
+#    define DBG_TRACE_PROTO(msg, mask, ...)  TRACE_PROTO(msg, mask, __VA_ARGS__)
+#    define DBG_TRACE_STATE(msg, mask, ...)  TRACE_STATE(msg, mask, __VA_ARGS__)
+#    define DBG_TRACE_DEVEL(msg, mask, ...)  TRACE_DEVEL(msg, mask, __VA_ARGS__)
+#    define DBG_TRACE_ENTER(mask, ...)       TRACE_ENTER(mask, __VA_ARGS__)
+#    define DBG_TRACE_LEAVE(mask, ...)       TRACE_LEAVE(mask, __VA_ARGS__)
+#    define DBG_TRACE_POINT(mask, ...)       TRACE_POINT(mask, __VA_ARGS__)
+#else
+#    define DBG_TRACE(msg, mask, ...)        do { /* do nothing */ } while(0)
+#    define DBG_TRACE_USER(msg, mask, ...)   do { /* do nothing */ } while(0)
+#    define DBG_TRACE_DATA(msg, mask, ...)   do { /* do nothing */ } while(0)
+#    define DBG_TRACE_PROTO(msg, mask, ...)  do { /* do nothing */ } while(0)
+#    define DBG_TRACE_STATE(msg, mask, ...)  do { /* do nothing */ } while(0)
+#    define DBG_TRACE_DEVEL(msg, mask, ...)  do { /* do nothing */ } while(0)
+#    define DBG_TRACE_ENTER(mask, ...)       do { /* do nothing */ } while(0)
+#    define DBG_TRACE_LEAVE(mask, ...)       do { /* do nothing */ } while(0)
+#    define DBG_TRACE_POINT(mask, ...)       do { /* do nothing */ } while(0)
+#endif
+
 extern struct list trace_sources;
 extern THREAD_LOCAL struct buffer trace_buf;