mood.c: Improve documentation of reload_current_mood().

The old text was a bit clumsy and too short.

diff --git a/mood.c b/mood.c
index a228b2432f9b56d3bc51535c13d74094314e7da9..b3f007b68fe07c46f500d1aaa7dffdfe9503f451 100644 (file)
--- a/mood.c
+++ b/mood.c
@@ -715,9 +715,17 @@ static int reload_current_mood(void)
  * \param pb Unused.
  * \param data Its type depends on the event.
  *
- * This function performs actions required due to the occurrence of the given
- * event. Possible actions include reload of the current mood and update of the
- * score of an audio file.
+ * This function updates the score table according to the event that has
+ * occurred. Two actions are possible: (a) reload the current mood, or (b)
+ * add/remove/update the row of the score table which corresponds to the audio
+ * file that has been modified or whose afs info has been changed. It depends
+ * on the type of the event which action (if any) is performed.
+ *
+ * The callbacks of command handlers such as com_add() or com_touch() which
+ * modify the audio file table call this function. The virtual streaming system
+ * also calls this after it has updated the afs info of the file it is about to
+ * stream (the one with the highest score). If the file stays admissible, its
+ * score is recomputed so that a different file is picked next time.
  *
  * \return Standard.
  */