qga: use fixed-length and GDateTime for log timestamp

The old code is kind of wrong. Say it's 1649309843.000001 seconds past
the epoch. Prints "1649309843.1". 9us later, it prints "1649309843.10".
Should really use %06lu for the microseconds part.

Use GDateTime instead, as suggested by Daniel.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

diff --git a/qga/main.c b/qga/main.c
index 3c20bf1fbfe04a27a0f469be1d173a20242d7f57..3b9546c18584678409ecf2efc7c1d0959973600c 100644 (file)
--- a/qga/main.c
+++ b/qga/main.c
@@ -328,11 +328,9 @@ static void ga_log(const gchar *domain, GLogLevelFlags level,
 #else
     if (level & s->log_level) {
 #endif
-        gint64 t = g_get_real_time();
-        fprintf(s->log_file,
-                "%" G_GINT64_FORMAT ".%" G_GINT64_FORMAT
-                ": %s: %s\n", t / G_USEC_PER_SEC, t % G_USEC_PER_SEC,
-                level_str, msg);
+        g_autoptr(GDateTime) now = g_date_time_new_now_utc();
+        g_autofree char *nowstr = g_date_time_format(now, "%s.%f");
+        fprintf(s->log_file, "%s: %s: %s\n", nowstr, level_str, msg);
         fflush(s->log_file);
     }
 }