log: add wp_logt_checked taking WpLogTopic, to decide on debug messages

Make decision on whether to show code location in journal messages based
on whether the WpLogTopic would enable DEBUG level messages.

Add wp_logt_checked API to take WpLogTopic as input to make this
possible, and deprecate wp_log_checked.

lib/wp/log.c

@@ -892,6 +892,8 @@ wp_log_writer_default (GLogLevelFlags log_level_flags,
 /*!
  * \brief Used internally by the debug logging macros. Avoid using it directly.
  *
+ * \deprecated Use \ref wp_logt_checked instead.
+ *
  * This assumes that the arguments are correct and that the log_topic is
  * enabled for the given log_level. No additional checks are performed.
  * \ingroup wplog
@@ -922,6 +924,45 @@ wp_log_checked (
   wp_log_fields_log (&lf);
 }
 
+/*!
+ * \brief Used internally by the debug logging macros. Avoid using it directly.
+ *
+ * This assumes that the arguments are correct and that the log_topic is
+ * enabled for the given log_level. No additional checks are performed.
+ * \ingroup wplog
+ */
+void
+wp_logt_checked (
+    const WpLogTopic *topic,
+    GLogLevelFlags log_level_flags,
+    const gchar *file,
+    const gchar *line,
+    const gchar *func,
+    GType object_type,
+    gconstpointer object,
+    const gchar *message_format,
+    ...)
+{
+  WpLogFields lf = {0};
+  g_autofree gchar *message = NULL;
+  va_list args;
+  const gchar *log_topic = topic ? topic->topic_name : NULL;
+  gboolean debug;
+
+  if (topic)
+    debug = (topic->flags & WP_LOG_TOPIC_LEVEL_MASK & G_LOG_LEVEL_DEBUG);
+  else
+    debug = wp_want_debug_log (NULL);
+
+  va_start (args, message_format);
+  message = g_strdup_vprintf (message_format, args);
+  va_end (args);
+
+  wp_log_fields_init (&lf, log_topic, level_index_from_flags (log_level_flags), debug,
+      file, line, func, object_type, object, message);
+  wp_log_fields_log (&lf);
+}
+
 static G_GNUC_PRINTF (7, 0) void
 wp_spa_log_logtv (void *object,
     enum spa_log_level level,

lib/wp/log.h

@@ -121,6 +121,12 @@ GLogWriterOutput wp_log_writer_default (GLogLevelFlags log_level,
 
 WP_API
 void wp_log_checked (const gchar *log_topic, GLogLevelFlags log_level,
+    const gchar *file, const gchar *line, const gchar *func,
+    GType object_type, gconstpointer object,
+    const gchar *message_format, ...) G_GNUC_PRINTF (8, 9) __attribute__ ((deprecated));
+
+WP_API
+void wp_logt_checked (const WpLogTopic *topic, GLogLevelFlags log_level,
     const gchar *file, const gchar *line, const gchar *func,
     GType object_type, gconstpointer object,
     const gchar *message_format, ...) G_GNUC_PRINTF (8, 9);
@@ -128,7 +134,7 @@ void wp_log_checked (const gchar *log_topic, GLogLevelFlags log_level,
 #define wp_log(topic, level, type, object, ...) \
 ({ \
   if (G_UNLIKELY (wp_log_topic_is_enabled (topic, level))) \
-    wp_log_checked (topic->topic_name, level, __FILE__, G_STRINGIFY (__LINE__), \
+    wp_logt_checked (topic, level, __FILE__, G_STRINGIFY (__LINE__), \
         G_STRFUNC, type, object, __VA_ARGS__); \
 })
 

modules/module-lua-scripting/api/api.c

@@ -384,7 +384,7 @@ log_log (lua_State *L, GLogLevelFlags lvl)
   snprintf (line_str, 11, "%d", ar.currentline);
   ar.name = ar.name ? ar.name : "chunk";
 
-  wp_log_checked (topic->topic_name, lvl,
+  wp_logt_checked (topic, lvl,
       ar.source, line_str, ar.name, type, instance, "%s", message);
   return 0;
 }