From: Andre Noll <maan@systemlinux.org>
Date: Sun, 23 Sep 2007 15:56:39 +0000 (+0200)
Subject: playlist.c: Cleanups.
X-Git-Tag: v0.3.0~373
X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=commitdiff_plain;h=782375e0897199259d6666c4c2ec7f963210a953

playlist.c: Cleanups.

Avoid using the global playlist variable where possible. Change the name of the
global static playlist struct to current_playlist.
---

diff --git a/playlist.c b/playlist.c
index 6f952e65..272f25ac 100644
--- a/playlist.c
+++ b/playlist.c
@@ -13,7 +13,7 @@ struct playlist_info {
 	/** The number of entries currently in the playlist. */
 	unsigned length;
 };
-static struct playlist_info playlist;
+static struct playlist_info current_playlist;
 
 /**
  * Re-insert an audio file into the tree of admissible files.
@@ -28,10 +28,10 @@ int playlist_update_audio_file(struct osl_row *aft_row)
 	return score_update(aft_row, 0);
 }
 
-static int add_playlist_entry(char *line, void *private_data)
+static int add_playlist_entry(char *line, void *data)
 {
+	struct playlist_info *playlist = data;
 	struct osl_row *aft_row;
-	struct playlist_info *pli = private_data;
 	int ret = aft_get_row_of_path(line, &aft_row);
 
 	if (ret < 0) {
@@ -39,16 +39,16 @@ static int add_playlist_entry(char *line, void *private_data)
 			line);
 		return 1;
 	}
-	ret = score_add(aft_row, -pli->length);
+	ret = score_add(aft_row, -playlist->length);
 	if (ret < 0) {
 		PARA_ERROR_LOG("failed to add %s: %d\n", line, ret);
 		return ret;
 	}
-	pli->length++;
+	playlist->length++;
 	return 1;
 }
 
-static int load_playlist(struct osl_row *row)
+static int load_playlist(struct osl_row *row, struct playlist_info *playlist)
 {
 	struct osl_object obj;
 	int ret;
@@ -56,31 +56,32 @@ static int load_playlist(struct osl_row *row)
 	ret = osl_get_object(playlists_table, row, BLOBCOL_NAME, &obj);
 	if (ret < 0)
 		return ret;
-	playlist.name = para_strdup(obj.data);
-	playlist.length = 0;
+	playlist->name = para_strdup(obj.data);
+	playlist->length = 0;
 	ret = osl_open_disk_object(playlists_table, row, BLOBCOL_DEF, &obj);
 	if (ret < 0)
 		goto err;
 	ret = for_each_line_ro(obj.data, obj.size, add_playlist_entry,
-		&playlist);
+		playlist);
 	osl_close_disk_object(&obj);
 	if (ret < 0)
 		goto err;
 	ret = -E_PLAYLIST_EMPTY;
-	if (!playlist.length)
+	if (!playlist->length)
 		goto err;
-	PARA_NOTICE_LOG("loaded playlist %s (%u files)\n", playlist.name,
-		playlist.length);
+	PARA_NOTICE_LOG("loaded playlist %s (%u files)\n", playlist->name,
+		playlist->length);
 	return 1;
 err:
-	free(playlist.name);
+	free(playlist->name);
 	return ret;
 }
 
 /* returns -E_PLAYLIST_LOADED on _success_ to terminate the loop */
-static int playlist_loop(struct osl_row *row, __a_unused void *private_data)
+static int playlist_loop(struct osl_row *row, void *data)
 {
-	int ret = load_playlist(row);
+	struct playlist_info *playlist = data;
+	int ret = load_playlist(row, playlist);
 	if (ret < 0) {
 		if (ret != -E_DUMMY_ROW)
 			PARA_NOTICE_LOG("unable to load playlist, trying next\n");
@@ -89,9 +90,9 @@ static int playlist_loop(struct osl_row *row, __a_unused void *private_data)
 	return -E_PLAYLIST_LOADED;
 }
 
-static int load_first_available_playlist(void)
+static int load_first_available_playlist(struct playlist_info *playlist)
 {
-	int ret = osl_rbtree_loop(playlists_table, BLOBCOL_NAME, NULL,
+	int ret = osl_rbtree_loop(playlists_table, BLOBCOL_NAME, playlist,
 		playlist_loop);
 	if (ret == -E_PLAYLIST_LOADED) /* success */
 		return 1;
@@ -108,8 +109,8 @@ static int load_first_available_playlist(void)
  */
 void playlist_close(void)
 {
-	free(playlist.name);
-	playlist.name = NULL;
+	free(current_playlist.name);
+	current_playlist.name = NULL;
 }
 
 /**
@@ -131,7 +132,7 @@ int playlist_open(char *name)
 	struct osl_row *row;
 
 	if (!name)
-		return load_first_available_playlist();
+		return load_first_available_playlist(&current_playlist);
 	obj.data = name;
 	obj.size = strlen(obj.data);
 	ret = osl_get_row(playlists_table, BLOBCOL_NAME, &obj, &row);
@@ -139,5 +140,5 @@ int playlist_open(char *name)
 		PARA_NOTICE_LOG("failed to load playlist %s\n", name);
 		return ret;
 	}
-	return load_playlist(row);
+	return load_playlist(row, &current_playlist);
 }