From 4cdf53ccaf94a774be3424763978c56b9bcaf0d1 Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@systemlinux.org>
Date: Wed, 13 Jun 2012 16:38:10 +0200
Subject: [PATCH] mood: Improve readability of get_item_score().

This function returns whether the given item matches, so make
it return bool rather than int. This improves readability of
compute_mood_score(), which calls get_item_score() three times,
quite a bit.

No semantic changes.
---
 mood.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/mood.c b/mood.c
index d12bc20d..b1ee78e4 100644
--- a/mood.c
+++ b/mood.c
@@ -107,12 +107,16 @@ __a_const static uint64_t int_sqrt(uint64_t x)
 	return res;
 }
 
-/* returns 1 if row matches score item, 0 if not. */
-static int get_item_score(struct mood_item *item, const struct afs_info *afsi,
+/*
+ * Returns true if row matches, false if it does not match. In any case score
+ * and score_arg_sum are set/increased accordingly.
+ */
+static bool get_item_score(struct mood_item *item, const struct afs_info *afsi,
 		const struct afh_info *afhi, const char *path, long *score,
 		long *score_arg_sum)
 {
-	int ret, match = 1;
+	int ret;
+	bool match = true;
 
 	*score_arg_sum += item->random_score? 100 : PARA_ABS(item->score_arg);
 	ret = 100;
@@ -120,7 +124,7 @@ static int get_item_score(struct mood_item *item, const struct afs_info *afsi,
 		ret = item->method->score_function(path, afsi, afhi,
 			item->parser_data);
 		if ((ret < 0 && !item->logical_not) || (ret >= 0 && item->logical_not))
-			match = 0; /* no match */
+			match = false;
 	}
 	if (item->random_score)
 		*score = PARA_ABS(ret) * para_random(100);
@@ -134,7 +138,8 @@ static int compute_mood_score(const struct osl_row *aft_row, struct mood *m,
 		long *result)
 {
 	struct mood_item *item;
-	int ret, match = 0;
+	int ret;
+	bool match;
 	long score_arg_sum = 0, score = 0, item_score;
 	struct afs_info afsi;
 	struct afh_info afhi;
@@ -153,29 +158,29 @@ static int compute_mood_score(const struct osl_row *aft_row, struct mood *m,
 		return ret;
 	/* reject audio file if it matches any entry in the deny list */
 	list_for_each_entry(item, &m->deny_list, mood_item_node) {
-		ret = get_item_score(item, &afsi, &afhi, path, &item_score,
+		match = get_item_score(item, &afsi, &afhi, path, &item_score,
 			&score_arg_sum);
-		if (ret > 0) /* not admissible */
+		if (match) /* not admissible */
 			return 0;
 		score += item_score;
 	}
+	match = false;
 	list_for_each_entry(item, &m->accept_list, mood_item_node) {
 		ret = get_item_score(item, &afsi, &afhi, path, &item_score,
 			&score_arg_sum);
 		if (ret == 0)
 			continue;
-		match = 1;
+		match = true;
 		score += item_score;
 	}
 	/* reject if there is no matching entry in the accept list */
 	if (!match && !list_empty(&m->accept_list))
 		return 0;
 	list_for_each_entry(item, &m->score_list, mood_item_node) {
-		ret = get_item_score(item, &afsi, &afhi, path, &item_score,
+		match = get_item_score(item, &afsi, &afhi, path, &item_score,
 			&score_arg_sum);
-		if (ret == 0)
-			continue;
-		score += item_score;
+		if (match)
+			score += item_score;
 	}
 	if (score_arg_sum)
 		score /= score_arg_sum;
-- 
2.39.5