basic/log: expose log_dispatch

This is useful when we want to avoid printf formatting on the message.
It's nicer than using log_struct with "%s" as the format, because printf
is slow and with a large message (like from a backtrace) this would require
extra unnecessary memory.

I'm not exposing all the fields in the wrapper: only level and errno.
Those are the most likely to be useful.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/basic/log.h b/src/basic/log.h
index d4bc3a934..8353394ff 100644
--- a/src/basic/log.h
+++ b/src/basic/log.h
@@ -77,6 +77,18 @@ void log_close_console(void);
 
 void log_parse_environment(void);
 
+int log_dispatch_internal(
+                int level,
+                int error,
+                const char *file,
+                int line,
+                const char *func,
+                const char *object_field,
+                const char *object,
+                const char *extra,
+                const char *extra_field,
+                char *buffer);
+
 int log_internal(
                 int level,
                 int error,
@@ -169,6 +181,9 @@ void log_assert_failed_return(
                 int line,
                 const char *func);
 
+#define log_dispatch(level, error, buffer)                              \
+        log_dispatch_internal(level, error, __FILE__, __LINE__, __func__, NULL, NULL, NULL, NULL, buffer)
+
 /* Logging with level */
 #define log_full_errno(level, error, ...)                               \
         ({                                                              \