playlist: moved some printing code to queue_print.c

Moved protocol printing functions which operate on the queue to
queue_print.c.

src/Makefile.am

@@ -93,6 +93,7 @@ mpd_headers = \
 	playlist.h \
 	playlist_save.h \
 	queue.h \
+	queue_print.h \
 	replay_gain.h \
 	sig_handlers.h \
 	song.h \
@@ -177,6 +178,7 @@ mpd_SOURCES = \
 	playlist.c \
 	playlist_save.c \
 	queue.c \
+	queue_print.c \
 	replay_gain.c \
 	sig_handlers.c \
 	song.c \

src/playlist.c

@@ -18,6 +18,7 @@
 
 #include "playlist.h"
 #include "playlist_save.h"
+#include "queue_print.h"
 #include "player_control.h"
 #include "command.h"
 #include "ls.h"
@@ -155,12 +156,8 @@ void clearPlaylist(void)
 
 void showPlaylist(struct client *client)
 {
-	for (unsigned i = 0; i < queue_length(&playlist.queue); i++) {
-		const struct song *song = queue_get(&playlist.queue, i);
-		char *uri = song_get_uri(song);
-		client_printf(client, "%i:%s\n", i, uri);
-		g_free(uri);
-	}
+	queue_print_uris(client, &playlist.queue,
+			 0, queue_length(&playlist.queue));
 }
 
 static void playlist_save(FILE *fp)
@@ -313,31 +310,15 @@ void readPlaylistState(FILE *fp)
 	}
 }
 
-static void printPlaylistSongInfo(struct client *client, unsigned song)
-{
-	song_print_info(client, queue_get(&playlist.queue, song));
-	client_printf(client, "Pos: %u\nId: %u\n",
-		      song, queue_position_to_id(&playlist.queue, song));
-}
-
 int playlistChanges(struct client *client, uint32_t version)
 {
-	for (unsigned i = 0; i < queue_length(&playlist.queue); i++) {
-		if (queue_song_newer(&playlist.queue, i, version))
-			printPlaylistSongInfo(client, i);
-	}
-
+	queue_print_changes_info(client, &playlist.queue, version);
 	return 0;
 }
 
 int playlistChangesPosId(struct client *client, uint32_t version)
 {
-	for (unsigned i = 0; i < queue_length(&playlist.queue); i++) {
-		if (queue_song_newer(&playlist.queue, i, version))
-			client_printf(client, "cpos: %i\nId: %i\n",
-				      i, queue_position_to_id(&playlist.queue, i));
-	}
-
+	queue_print_changes_position(client, &playlist.queue, version);
 	return 0;
 }
 
@@ -350,9 +331,7 @@ playlistInfo(struct client *client, unsigned start, unsigned end)
 	if (start > end)
 		return PLAYLIST_RESULT_BAD_RANGE;
 
-	for (unsigned i = start; i < end; i++)
-		printPlaylistSongInfo(client, i);
-
+	queue_print_info(client, &playlist.queue, start, end);
 	return PLAYLIST_RESULT_SUCCESS;
 }
 
@@ -374,9 +353,7 @@ enum playlist_result playlistId(struct client *client, int id)
 		end = begin + 1;
 	}
 
-	for (unsigned i = begin; i < end; i++)
-		printPlaylistSongInfo(client, i);
-
+	queue_print_info(client, &playlist.queue, begin, end);
 	return PLAYLIST_RESULT_SUCCESS;
 }
 
@@ -1312,7 +1289,7 @@ searchForSongsInPlaylist(struct client *client,
 		const struct song *song = queue_get(&playlist.queue, i);
 
 		if (strstrSearchTags(song, numItems, items))
-			printPlaylistSongInfo(client, i);
+			queue_print_song_info(client, &playlist.queue, i);
 	}
 
 	freeLocateTagItemArray(numItems, new_items);
@@ -1326,7 +1303,7 @@ findSongsInPlaylist(struct client *client,
 		const struct song *song = queue_get(&playlist.queue, i);
 
 		if (tagItemsFoundAndMatches(song, numItems, items))
-			printPlaylistSongInfo(client, i);
+			queue_print_song_info(client, &playlist.queue, i);
 	}
 }
 

src/queue_print.c

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2003-2009 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "queue_print.h"
+#include "queue.h"
+#include "song.h"
+#include "song_print.h"
+#include "client.h"
+
+void
+queue_print_song_info(struct client *client, const struct queue *queue,
+		      unsigned position)
+{
+	song_print_info(client, queue_get(queue, position));
+	client_printf(client, "Pos: %u\nId: %u\n",
+		      position, queue_position_to_id(queue, position));
+}
+
+void
+queue_print_info(struct client *client, const struct queue *queue,
+		 unsigned start, unsigned end)
+{
+	assert(start <= end);
+	assert(end <= queue_length(queue));
+
+	for (unsigned i = start; i < end; ++i)
+		queue_print_song_info(client, queue, i);
+}
+
+void
+queue_print_uris(struct client *client, const struct queue *queue,
+		 unsigned start, unsigned end)
+{
+	assert(start <= end);
+	assert(end <= queue_length(queue));
+
+	for (unsigned i = start; i < end; ++i) {
+		const struct song *song = queue_get(queue, i);
+		char *uri = song_get_uri(song);
+
+		client_printf(client, "%i:%s\n", i, uri);
+		g_free(uri);
+	}
+}
+
+void
+queue_print_changes_info(struct client *client, const struct queue *queue,
+			 uint32_t version)
+{
+	for (unsigned i = 0; i < queue_length(queue); i++) {
+		if (queue_song_newer(queue, i, version))
+			queue_print_song_info(client, queue, i);
+	}
+}
+
+void
+queue_print_changes_position(struct client *client, const struct queue *queue,
+			     uint32_t version)
+{
+	for (unsigned i = 0; i < queue_length(queue); i++)
+		if (queue_song_newer(queue, i, version))
+			client_printf(client, "cpos: %i\nId: %i\n",
+				      i, queue_position_to_id(queue, i));
+}

src/queue_print.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2003-2009 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ * This library sends information about songs in the queue to the
+ * client.
+ */
+
+#ifndef QUEUE_PRINT_H
+#define QUEUE_PRINT_H
+
+#include <stdint.h>
+
+struct client;
+struct queue;
+
+void
+queue_print_song_info(struct client *client, const struct queue *queue,
+		      unsigned position);
+
+void
+queue_print_info(struct client *client, const struct queue *queue,
+		 unsigned start, unsigned end);
+
+void
+queue_print_uris(struct client *client, const struct queue *queue,
+		 unsigned start, unsigned end);
+
+void
+queue_print_changes_info(struct client *client, const struct queue *queue,
+			 uint32_t version);
+
+void
+queue_print_changes_position(struct client *client, const struct queue *queue,
+			     uint32_t version);
+
+#endif