X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=mood.c;h=9074581c6c8d40741a99c3c1772716381e03f2a4;hp=e685fd91c982fd82cd9afa69c3a06932328907a5;hb=97f53e18953fc2013c0b14f0261ac385e45b0284;hpb=07010f70da6ea0ba9940116eef83abeb02fa8d5d

diff --git a/mood.c b/mood.c
index e685fd91..9074581c 100644
--- a/mood.c
+++ b/mood.c
@@ -9,10 +9,10 @@
 #include <fnmatch.h>
 #include "para.h"
 #include "error.h"
+#include "string.h"
 #include "afh.h"
 #include "afs.h"
 #include "list.h"
-#include "string.h"
 
 /**
  * Contains statistical data of the currently admissible audio files.
@@ -36,11 +36,10 @@ struct afs_statistics statistics;
 /**
  * Assign scores according to a mood_method.
  *
- * Each mood_method has its own mood_score_function. The first parameter passed
- * to that function is a pointer to a row of the audio file table.  It
- * determines the audio file for which a score is to be assigned.  The second
- * argument depends on the mood method this function is used for. It usually is
- * the argument given at the end of a mood line.
+ * Each mood_method has its own mood_score_function. The first three parameters
+ * passed to that function are informations about the audio file whose score is
+ * to be computed. The data argument depends on the mood method this function
+ * is used for. It usually is the argument given at the end of a mood line.
  *
  * Mood score functions must return values between -100 and +100 inclusively.
  * Boolean score functions should always return either -100 or +100.
@@ -164,6 +163,23 @@ static uint64_t int_sqrt(uint64_t x)
 	return res;
 }
 
+static int mm_no_attributes_set_parser(const char *arg, __a_unused void **ignored)
+{
+	if (arg && *arg)
+		PARA_WARNING_LOG("ignored junk at eol: %s\n", arg);
+	return 1;
+}
+
+static int mm_no_attributes_set_score_function(__a_unused const char *path,
+		const struct afs_info *afsi,
+		__a_unused const struct audio_format_info *afhi,
+		__a_unused const void *data)
+{
+	if (!afsi->attributes)
+		return 100;
+	return -100;
+}
+
 static int mm_played_rarely_score_function(__a_unused const char *path,
 		const struct afs_info *afsi,
 		__a_unused const struct audio_format_info *afhi,
@@ -182,7 +198,7 @@ static int mm_played_rarely_score_function(__a_unused const char *path,
 
 static int mm_played_rarely_parser(const char *arg, __a_unused void **ignored)
 {
-	if (*arg)
+	if (arg && *arg)
 		PARA_WARNING_LOG("ignored junk at eol: %s\n", arg);
 	return 1;
 }
@@ -291,26 +307,21 @@ static int compute_mood_score(const struct osl_row *aft_row, struct mood *m,
 	return 1;
 }
 
+#define DEFINE_MOOD_METHOD(_name) \
+.parser = mm_ ## _name ## _parser, \
+.score_function = mm_ ## _name ## _score_function, \
+.name = #_name
+
+#define DEFINE_MOOD_METHOD_WITH_CLEANUP(_name) \
+	DEFINE_MOOD_METHOD(_name), \
+	.cleanup = mm_ ## _name ## _cleanup
+
 static const struct mood_method mood_methods[] = {
-{
-	.parser = mm_played_rarely_parser,
-	.score_function = mm_played_rarely_score_function,
-	.name = "played_rarely"
-},
-{
-	.parser = mm_is_set_parser,
-	.score_function = mm_is_set_score_function,
-	.name = "is_set"
-},
-{
-	.parser = mm_name_like_parser,
-	.score_function = mm_name_like_score_function,
-	.cleanup = mm_name_like_cleanup,
-	.name = "name_like"
-},
-{
-	.parser = NULL
-}
+	{DEFINE_MOOD_METHOD(no_attributes_set)},
+	{DEFINE_MOOD_METHOD(played_rarely)},
+	{DEFINE_MOOD_METHOD(is_set)},
+	{DEFINE_MOOD_METHOD_WITH_CLEANUP(name_like)},
+	{.parser = NULL}
 };
 
 static void cleanup_list_entry(struct mood_item *item)
@@ -841,13 +852,13 @@ static int delete_from_statistics_and_score_table(const struct osl_row *aft_row)
  *
  * \return Positive on success, negative on errors.
  *
- * \sa score_delete(), mood_update_audio_file().
+ * \sa score_delete().
  */
-int mood_delete_audio_file(const struct osl_row *aft_row)
+static int mood_delete_audio_file(const struct osl_row *aft_row)
 {
 	int ret;
 
-	ret = row_belongs_to_score_table(aft_row);
+	ret = row_belongs_to_score_table(aft_row, NULL);
 	if (ret < 0)
 		return ret;
 	if (!ret) /* not admissible, nothing to do */
@@ -866,15 +877,17 @@ int mood_delete_audio_file(const struct osl_row *aft_row)
  *
  * \return Positive on success, negative on errors.
  */
-int mood_update_audio_file(const struct osl_row *aft_row, struct afs_info *old_afsi)
+static int mood_update_audio_file(const struct osl_row *aft_row,
+		struct afs_info *old_afsi)
 {
 	long score, percent;
 	int ret, is_admissible, was_admissible = 0;
 	struct afs_info afsi;
+	unsigned rank;
 
 	if (!current_mood)
 		return 1; /* nothing to do */
-	ret = row_belongs_to_score_table(aft_row);
+	ret = row_belongs_to_score_table(aft_row, &rank);
 	if (ret < 0)
 		return ret;
 	was_admissible = ret;
@@ -908,7 +921,7 @@ int mood_update_audio_file(const struct osl_row *aft_row, struct afs_info *old_a
 		percent = 100;
 	else if (percent < 0)
 		percent = 0;
-	PARA_DEBUG_LOG("re-inserting at %lu%%\n", percent);
+	PARA_DEBUG_LOG("moving from rank %u to %lu%%\n", rank, percent);
 	return score_update(aft_row, percent);
 }
 
@@ -1009,7 +1022,7 @@ out:
  * Free all resources of the current mood which were allocated during
  * mood_open().
  */
-void close_current_mood(void)
+static void close_current_mood(void)
 {
 	destroy_mood(current_mood);
 	current_mood = NULL;
@@ -1034,12 +1047,52 @@ int reload_current_mood(void)
 	int ret;
 	char *mood_name;
 
+	PARA_NOTICE_LOG("reloading current mood\n");
 	if (!current_mood)
 		return 1;
-	score_shutdown(0);
 	mood_name = para_strdup(current_mood->name);
 	close_current_mood();
+	ret = clear_score_table();
+	if (ret < 0)
+		return ret;
 	ret = change_current_mood(mood_name);
 	free(mood_name);
 	return ret;
 }
+
+int moods_event_handler(enum afs_events event, struct para_buffer *pb,
+		void *data)
+{
+	switch(event) {
+	/*
+	 * The three blob events might change the set of admissible files,
+	 * so we must reload the score list.
+	 */
+	case BLOB_RENAME:
+	case BLOB_REMOVE:
+	case BLOB_ADD:
+		if (data == moods_table || data == playlists_table)
+			return 1; /* no reload necessary for these */
+		return reload_current_mood();
+	/* these also require reload of the score table */
+	case ATTRIBUTE_ADD:
+	case ATTRIBUTE_REMOVE:
+	case ATTRIBUTE_RENAME:
+		return reload_current_mood();
+	/* changes to the aft only require to re-examine the audio file */
+	case AFSI_CHANGE: {
+		struct afsi_change_event_data *aced = data;
+		return mood_update_audio_file(aced->aft_row, aced->old_afsi);
+		}
+	case AFHI_CHANGE:
+	case AUDIO_FILE_RENAME:
+	case AUDIO_FILE_ADD:
+		return mood_update_audio_file(data, NULL);
+	case AUDIO_FILE_REMOVE:
+		return mood_delete_audio_file(data);
+	default:
+		return 1;
+	}
+	return 1;
+}
+