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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2014-10-22 23:27:57 -0500
committerAnthony G. Basile <blueness@gentoo.org>2014-10-25 11:40:24 -0400
commita79876e097b87ede8c75301a99e4cd964b83a933 (patch)
tree6b3b7af8d794b07b840c8c44f53ca6633e1e4a6a
parente5d31af2dfb0ce5b86a861dd03e8c12a7f29e984 (diff)
shared/log: add log_trace as compile-time optional debugging
Repetetive messages can be annoying when running with SYSTEMD_LOG_LEVEL=debug, but they are sometimes very useful when debugging problems. Add log_trace which is like log_debug but becomes a noop unless LOG_TRACE is defined during compilation. This makes it easy to enable very verbose logging for a subset of programs when compiling from source. Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
-rw-r--r--src/shared/log.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/shared/log.h b/src/shared/log.h
index 70d3ec2f61..30f0cacb65 100644
--- a/src/shared/log.h
+++ b/src/shared/log.h
@@ -97,6 +97,12 @@ do { \
#define log_warning(...) log_full(LOG_WARNING, __VA_ARGS__)
#define log_error(...) log_full(LOG_ERR, __VA_ARGS__)
+#ifdef LOG_TRACE
+# define log_trace(...) log_debug(__VA_ARGS__)
+#else
+# define log_trace(...) do {} while(0)
+#endif
+
#define log_struct(level, ...) log_struct_internal(level, __FILE__, __LINE__, __func__, __VA_ARGS__)
#define log_oom() log_oom_internal(__FILE__, __LINE__, __func__)