player_control: removed the global variable "pc"

Allocate a player_control object where needed, and pass it around.
Each "client" object is associated with a "player_control" instance.

This prepares multi-player support.

1 files changed, 43 insertions, 26 deletions

diff --git a/src/playlist.h b/src/playlist.h
index 3ba90ff91..e1e6eff85 100644
--- a/src/playlist.h
+++ b/src/playlist.h
@@ -26,6 +26,8 @@
 
 #define PLAYLIST_COMMENT	'#'
 
+struct player_control;
+
 enum playlist_result {
 	PLAYLIST_RESULT_SUCCESS,
 	PLAYLIST_RESULT_ERRNO,
@@ -111,7 +113,7 @@ playlist_get_queue(const struct playlist *playlist)
 }
 
 void
-playlist_clear(struct playlist *playlist);
+playlist_clear(struct playlist *playlist, struct player_control *pc);
 
 #ifndef WIN32
 /**
@@ -119,20 +121,21 @@ playlist_clear(struct playlist *playlist);
  * but only if the file's owner is equal to the specified uid.
  */
 enum playlist_result
-playlist_append_file(struct playlist *playlist, const char *path, int uid,
-		     unsigned *added_id);
+playlist_append_file(struct playlist *playlist, struct player_control *pc,
+		     const char *path, int uid, unsigned *added_id);
 #endif
 
 enum playlist_result
-playlist_append_uri(struct playlist *playlist, const char *file,
-		    unsigned *added_id);
+playlist_append_uri(struct playlist *playlist, struct player_control *pc,
+		    const char *file, unsigned *added_id);
 
 enum playlist_result
-playlist_append_song(struct playlist *playlist,
+playlist_append_song(struct playlist *playlist, struct player_control *pc,
 		  struct song *song, unsigned *added_id);
 
 enum playlist_result
-playlist_delete(struct playlist *playlist, unsigned song);
+playlist_delete(struct playlist *playlist, struct player_control *pc,
+		unsigned song);
 
 /**
  * Deletes a range of songs from the playlist.
@@ -141,64 +144,77 @@ playlist_delete(struct playlist *playlist, unsigned song);
  * @param end the position after the last song to delete
  */
 enum playlist_result
-playlist_delete_range(struct playlist *playlist, unsigned start, unsigned end);
+playlist_delete_range(struct playlist *playlist, struct player_control *pc,
+		      unsigned start, unsigned end);
 
 enum playlist_result
-playlist_delete_id(struct playlist *playlist, unsigned song);
+playlist_delete_id(struct playlist *playlist, struct player_control *pc,
+		   unsigned song);
 
 void
-playlist_stop(struct playlist *playlist);
+playlist_stop(struct playlist *playlist, struct player_control *pc);
 
 enum playlist_result
-playlist_play(struct playlist *playlist, int song);
+playlist_play(struct playlist *playlist, struct player_control *pc,
+	      int song);
 
 enum playlist_result
-playlist_play_id(struct playlist *playlist, int song);
+playlist_play_id(struct playlist *playlist, struct player_control *pc,
+		 int song);
 
 void
-playlist_next(struct playlist *playlist);
+playlist_next(struct playlist *playlist, struct player_control *pc);
 
 void
-playlist_sync(struct playlist *playlist);
+playlist_sync(struct playlist *playlist, struct player_control *pc);
 
 void
-playlist_previous(struct playlist *playlist);
+playlist_previous(struct playlist *playlist, struct player_control *pc);
 
 void
-playlist_shuffle(struct playlist *playlist, unsigned start, unsigned end);
+playlist_shuffle(struct playlist *playlist, struct player_control *pc,
+		 unsigned start, unsigned end);
 
 void
-playlist_delete_song(struct playlist *playlist, const struct song *song);
+playlist_delete_song(struct playlist *playlist, struct player_control *pc,
+		     const struct song *song);
 
 enum playlist_result
-playlist_move_range(struct playlist *playlist, unsigned start, unsigned end, int to);
+playlist_move_range(struct playlist *playlist, struct player_control *pc,
+		    unsigned start, unsigned end, int to);
 
 enum playlist_result
-playlist_move_id(struct playlist *playlist, unsigned id, int to);
+playlist_move_id(struct playlist *playlist, struct player_control *pc,
+		 unsigned id, int to);
 
 enum playlist_result
-playlist_swap_songs(struct playlist *playlist, unsigned song1, unsigned song2);
+playlist_swap_songs(struct playlist *playlist, struct player_control *pc,
+		    unsigned song1, unsigned song2);
 
 enum playlist_result
-playlist_swap_songs_id(struct playlist *playlist, unsigned id1, unsigned id2);
+playlist_swap_songs_id(struct playlist *playlist, struct player_control *pc,
+		       unsigned id1, unsigned id2);
 
 bool
 playlist_get_repeat(const struct playlist *playlist);
 
 void
-playlist_set_repeat(struct playlist *playlist, bool status);
+playlist_set_repeat(struct playlist *playlist, struct player_control *pc,
+		    bool status);
 
 bool
 playlist_get_random(const struct playlist *playlist);
 
 void
-playlist_set_random(struct playlist *playlist, bool status);
+playlist_set_random(struct playlist *playlist, struct player_control *pc,
+		    bool status);
 
 bool
 playlist_get_single(const struct playlist *playlist);
 
 void
-playlist_set_single(struct playlist *playlist, bool status);
+playlist_set_single(struct playlist *playlist, struct player_control *pc,
+		    bool status);
 
 bool
 playlist_get_consume(const struct playlist *playlist);
@@ -222,10 +238,11 @@ unsigned long
 playlist_get_version(const struct playlist *playlist);
 
 enum playlist_result
-playlist_seek_song(struct playlist *playlist, unsigned song, float seek_time);
+playlist_seek_song(struct playlist *playlist, struct player_control *pc,
+		   unsigned song, float seek_time);
 
 enum playlist_result
-playlist_seek_song_id(struct playlist *playlist,
+playlist_seek_song_id(struct playlist *playlist, struct player_control *pc,
 		       unsigned id, float seek_time);
 
 void