Support thread-safe LV2 state restoration

[ardour.git] / libs / ardour / ardour / buffer_manager.h

diff --git a/libs/ardour/ardour/buffer_manager.h b/libs/ardour/ardour/buffer_manager.h
index 4da8d0637fe247b9398946fe7404ad5ee33c8a5d..1614854a8978876f4e5e103e1158fe77ca964146 100644 (file)
--- a/libs/ardour/ardour/buffer_manager.h
+++ b/libs/ardour/ardour/buffer_manager.h
@@ -1,4 +1,23 @@
-#ifndef __libardour_buffer_manager__ 
+/*
+    Copyright (C) 2012 Paul Davis
+
+    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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef __libardour_buffer_manager__
 #define __libardour_buffer_manager__
 
 #include <stdint.h>
@@ -6,24 +25,31 @@
 #include "pbd/ringbufferNPT.h"
 
 #include "ardour/chan_count.h"
+#include <list>
+#include <glibmm/threads.h>
 
 namespace ARDOUR {
 
 class ThreadBuffers;
 
-class BufferManager
+class LIBARDOUR_API BufferManager
 {
-  public:
-        static void init (uint32_t);
-        
-        static ThreadBuffers* get_thread_buffers ();
-        static void           put_thread_buffers (ThreadBuffers*);
+public:
+       static void init (uint32_t);
+
+       static ThreadBuffers* get_thread_buffers ();
+       static void           put_thread_buffers (ThreadBuffers*);
+
+       static void ensure_buffers (ChanCount howmany = ChanCount::ZERO, size_t custom = 0);
+
+private:
+        static Glib::Threads::Mutex rb_mutex;
 
-        static void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
+       typedef PBD::RingBufferNPT<ThreadBuffers*> ThreadBufferFIFO;
+       typedef std::list<ThreadBuffers*> ThreadBufferList;
 
-  private:
-        typedef RingBufferNPT<ThreadBuffers*> ThreadBufferFIFO;
-        static ThreadBufferFIFO* thread_buffers;
+       static ThreadBufferFIFO* thread_buffers;
+       static ThreadBufferList* thread_buffers_list;
 };
 
 }