X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Flog.h;fp=src%2Fshared%2Flog.h;h=3a4d1134a15d83b5aaedac37609941c0fb4127db;hb=e2cc6eca73cd1df8be552d7c23f9ff3d69c06f1e;hp=278010432de3aa7ca90fd6bf2d77729c508f8dbb;hpb=6c861f0aeff9449ee1201bb56f89861921e41c45;p=elogind.git

diff --git a/src/shared/log.h b/src/shared/log.h
index 278010432..3a4d1134a 100644
--- a/src/shared/log.h
+++ b/src/shared/log.h
@@ -199,7 +199,10 @@ bool log_on_console(void) _pure_;
 const char *log_target_to_string(LogTarget target) _const_;
 LogTarget log_target_from_string(const char *s) _pure_;
 
-#define MESSAGE_ID(x) "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(x)
+/* Helpers to prepare various fields for structured logging */
+#define LOG_MESSAGE(fmt, ...) "MESSAGE=" fmt, ##__VA_ARGS__
+#define LOG_MESSAGE_ID(x) "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(x)
+#define LOG_ERRNO(error) "ERRNO=%i", error
 
 void log_received_signal(int level, const struct signalfd_siginfo *si);