X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Flog.h;h=b323b2f7d42bc8b011afae24073b8d3f9709e9ac;hp=278010432de3aa7ca90fd6bf2d77729c508f8dbb;hb=1cfa9a4cbb41ef770614fa97961cc056a63c1b7c;hpb=79008bddf679a5e0900369950eb346c9fa687107

diff --git a/src/shared/log.h b/src/shared/log.h
index 278010432..b323b2f7d 100644
--- a/src/shared/log.h
+++ b/src/shared/log.h
@@ -34,6 +34,7 @@
 
 typedef enum LogTarget{
         LOG_TARGET_CONSOLE,
+        LOG_TARGET_CONSOLE_PREFIXED,
         LOG_TARGET_KMSG,
         LOG_TARGET_JOURNAL,
         LOG_TARGET_JOURNAL_OR_KMSG,
@@ -156,10 +157,12 @@ void log_assert_failed_return(
 
 /* Logging with level */
 #define log_full_errno(level, error, ...)                               \
-        do {                                                            \
-                if (log_get_max_level() >= (level))                     \
-                        log_internal((level), error, __FILE__, __LINE__, __func__, __VA_ARGS__); \
-        } while (false)
+        ({                                                              \
+                int _level = (level), _e = (error);                     \
+                (log_get_max_level() >= LOG_PRI(_level))                \
+                        ? log_internal(_level, _e, __FILE__, __LINE__, __func__, __VA_ARGS__) \
+                        : -abs(_e);                                     \
+        })
 
 #define log_full(level, ...) log_full_errno(level, 0, __VA_ARGS__)
 
@@ -177,7 +180,7 @@ void log_assert_failed_return(
 #define log_notice_errno(error, ...)    log_full_errno(LOG_NOTICE,  error, __VA_ARGS__)
 #define log_warning_errno(error, ...)   log_full_errno(LOG_WARNING, error, __VA_ARGS__)
 #define log_error_errno(error, ...)     log_full_errno(LOG_ERR,     error, __VA_ARGS__)
-#define log_emergency_errno(error, ...) log_full_errno(getpid() == 1 ? LOG_EMERG : LOG_ERR, __VA_ARGS__)
+#define log_emergency_errno(error, ...) log_full_errno(getpid() == 1 ? LOG_EMERG : LOG_ERR, error, __VA_ARGS__)
 
 #ifdef LOG_TRACE
 #  define log_trace(...) log_debug(__VA_ARGS__)
@@ -199,7 +202,10 @@ 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", abs(error)
 
 void log_received_signal(int level, const struct signalfd_siginfo *si);