player: no "fd" and no return value

Most player*() functions do not actually use the file descriptor, and
always return 0 (success).  Eliminate them to get a leaner interface.

src/command.c

@@ -292,9 +292,12 @@ static int handlePause(int fd, mpd_unused int *permission,
 		int pause_flag;
 		if (check_int(fd, &pause_flag, argv[1], check_boolean, argv[1]) < 0)
 			return -1;
-		return playerSetPause(fd, pause_flag);
+		playerSetPause(pause_flag);
+		return 0;
 	}
-	return playerPause(fd);
+
+	playerPause();
+	return 0;
 }
 
 static int commandStatus(mpd_unused int fd, mpd_unused int *permission,

src/player.c

@@ -27,14 +27,10 @@
 
 static void playerCloseAudio(void);
 
-int playerWait(int fd)
+void playerWait(void)
 {
-	if (playerStop(fd) < 0)
+	playerStop();
-		return -1;
-
 	playerCloseAudio();
-
-	return 0;
 }
 
 static void set_current_song(Song *song)
@@ -63,42 +59,35 @@ void player_command_finished()
 	wakeup_main_task();
 }
 
-int playerPlay(int fd, Song * song)
+void playerPlay(Song * song)
 {
-	if (playerStop(fd) < 0)
+	playerStop();
-		return -1;
 
 	set_current_song(song);
 	player_command(PLAYER_COMMAND_PLAY);
-
-	return 0;
 }
 
-int playerStop(mpd_unused int fd)
+void playerStop(void)
 {
 	if (pc.state != PLAYER_STATE_STOP)
 		player_command(PLAYER_COMMAND_STOP);
 
 	pc.queueState = PLAYER_QUEUE_BLANK;
 	playerQueueUnlock();
-
-	return 0;
 }
 
 void playerKill(void) /* deprecated */
 {
-	playerPause(STDERR_FILENO);
+	playerPause();
 }
 
-int playerPause(mpd_unused int fd)
+void playerPause(void)
 {
 	if (pc.state != PLAYER_STATE_STOP)
 		player_command(PLAYER_COMMAND_PAUSE);
-
-	return 0;
 }
 
-int playerSetPause(int fd, int pause_flag)
+void playerSetPause(int pause_flag)
 {
 	switch (pc.state) {
 	case PLAYER_STATE_STOP:
@@ -106,15 +95,13 @@ int playerSetPause(int fd, int pause_flag)
 
 	case PLAYER_STATE_PLAY:
 		if (pause_flag)
-			playerPause(fd);
+			playerPause();
 		break;
 	case PLAYER_STATE_PAUSE:
 		if (!pause_flag)
-			playerPause(fd);
+			playerPause();
 		break;
 	}
-
-	return 0;
 }
 
 int getPlayerElapsedTime(void)
@@ -180,9 +167,7 @@ char *getPlayerErrorStr(void)
 
 static void playerCloseAudio(void)
 {
-	if (playerStop(STDERR_FILENO) < 0)
+	playerStop();
-		return;
-
 	player_command(PLAYER_COMMAND_CLOSE_AUDIO);
 }
 

src/player.h

@@ -85,13 +85,13 @@ typedef struct _PlayerControl {
 
 void player_command_finished(void);
 
-int playerPlay(int fd, Song * song);
+void playerPlay(Song * song);
 
-int playerSetPause(int fd, int pause_flag);
+void playerSetPause(int pause_flag);
 
-int playerPause(int fd);
+void playerPause(void);
 
-int playerStop(int fd);
+void playerStop(void);
 
 void playerKill(void);
 
@@ -109,7 +109,7 @@ char *getPlayerErrorStr(void);
 
 int getPlayerError(void);
 
-int playerWait(int fd);
+void playerWait(void);
 
 int queueSong(Song * song);
 

src/playlist.c

@@ -286,7 +286,7 @@ static void loadPlaylistFromStateFile(FILE *fp, char *buffer,
 					     playlist.length - 1, 0);
 			}
 			if (state == PLAYER_STATE_PAUSE) {
-				playerPause(STDERR_FILENO);
+				playerPause();
 			}
 			if (state != PLAYER_STATE_STOP) {
 				seekSongInPlaylist(STDERR_FILENO,
@@ -790,7 +790,7 @@ int deleteFromPlaylist(int fd, int song)
 	    && playlist.current == songOrder) {
 		/*if(playlist.current>=playlist.length) return playerStop(fd);
 		   else return playPlaylistOrderNumber(fd,playlist.current); */
-		playerWait(STDERR_FILENO);
+		playerWait();
 		playlist_noGoToNext = 1;
 	}
 
@@ -828,11 +828,10 @@ void deleteASongFromPlaylist(Song * song)
 	}
 }
 
-int stopPlaylist(int fd)
+int stopPlaylist(mpd_unused int fd)
 {
 	DEBUG("playlist: stop\n");
-	if (playerWait(fd) < 0)
+	playerWait();
-		return -1;
 	playlist.queued = -1;
 	playlist_state = PLAYLIST_STATE_STOP;
 	playlist_noGoToNext = 0;
@@ -841,12 +840,11 @@ int stopPlaylist(int fd)
 	return 0;
 }
 
-static int playPlaylistOrderNumber(int fd, int orderNum)
+static int playPlaylistOrderNumber(mpd_unused int fd, int orderNum)
 {
 	char path_max_tmp[MPD_PATH_MAX];
 
-	if (playerStop(fd) < 0)
+	playerStop();
-		return -1;
 
 	playlist_state = PLAYLIST_STATE_PLAY;
 	playlist_noGoToNext = 0;
@@ -857,11 +855,7 @@ static int playPlaylistOrderNumber(int fd, int orderNum)
 	      get_song_url(path_max_tmp,
 	                   playlist.songs[playlist.order[orderNum]]));
 
-	if (playerPlay(fd, (playlist.songs[playlist.order[orderNum]])) < 0) {
+	playerPlay(playlist.songs[playlist.order[orderNum]]);
-		stopPlaylist(fd);
-		return -1;
-	} 
-
 	playlist.current = orderNum;
 
 	return 0;
@@ -878,7 +872,8 @@ int playPlaylist(int fd, int song, int stopOnError)
 			return 0;
 
 		if (playlist_state == PLAYLIST_STATE_PLAY) {
-			return playerSetPause(fd, 0);
+			playerSetPause(0);
+			return 0;
 		}
 		if (playlist.current >= 0 && playlist.current < playlist.length) {
 			i = playlist.current;