input_stream: non-blocking I/O

Add GMutex, GCond attributes which will be used by callers to
conditionally wait on the stream.

Remove the (now-useless) plugin method buffer(), wait on GCond
instead.  Lock the input_stream before each method call.  Do the same
with the playlist plugins.

1 files changed, 5 insertions, 2 deletions

diff --git a/src/playlist_list.h b/src/playlist_list.h
index 69eb26b1..4a248530 100644
--- a/src/playlist_list.h
+++ b/src/playlist_list.h
@@ -20,6 +20,8 @@
 #ifndef MPD_PLAYLIST_LIST_H
 #define MPD_PLAYLIST_LIST_H
 
+#include <glib.h>
+
 #include <stdbool.h>
 
 struct playlist_provider;
@@ -41,7 +43,7 @@ playlist_list_global_finish(void);
  * Opens a playlist by its URI.
  */
 struct playlist_provider *
-playlist_list_open_uri(const char *uri);
+playlist_list_open_uri(const char *uri, GMutex *mutex, GCond *cond);
 
 /**
  * Opens a playlist from an input stream.
@@ -69,6 +71,7 @@ playlist_suffix_supported(const char *suffix);
  * @return a playlist, or NULL on error
  */
 struct playlist_provider *
-playlist_list_open_path(const char *path_fs, struct input_stream **is_r);
+playlist_list_open_path(const char *path_fs, GMutex *mutex, GCond *cond,
+			struct input_stream **is_r);
 
 #endif