event_pipe: convert to C++

Makefile.am

@@ -247,7 +247,7 @@ src_mpd_SOURCES = \
 	src/io_thread.c src/io_thread.h \
 	src/Main.cxx src/Main.hxx \
 	src/Win32Main.cxx \
-	src/event_pipe.c \
+	src/EventPipe.cxx \
 	src/daemon.c \
 	src/AudioCompress/compress.c \
 	src/MusicBuffer.cxx src/MusicBuffer.hxx \

src/event_pipe.c → src/EventPipe.cxx

 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -80,7 +80,7 @@ main_notify_event(G_GNUC_UNUSED GIOChannel *source,
 	for (unsigned i = 0; i < PIPE_EVENT_MAX; ++i)
 		if (events[i])
 			/* invoke the event handler */
-			event_pipe_invoke(i);
+			event_pipe_invoke(pipe_event(i));
 
 	return true;
 }

src/event_pipe.h

 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -50,6 +50,10 @@ enum pipe_event {
 
 typedef void (*event_pipe_callback_t)(void);
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void event_pipe_init(void);
 
 void event_pipe_deinit(void);
@@ -66,4 +70,8 @@ void event_pipe_emit(enum pipe_event event);
  */
 void event_pipe_emit_fast(enum pipe_event event);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* MAIN_NOTIFY_H */