2 Copyright (C) 2000-2009 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_butler_h__
21 #define __ardour_butler_h__
23 #include <glibmm/thread.h>
25 #include "pbd/ringbuffer.h"
27 #include "ardour/types.h"
28 #include "ardour/session_handle.h"
33 * One of the Butler's functions is to clean up (ie delete) unused CrossThreadPools.
34 * When a thread with a CrossThreadPool terminates, its CTP is added to pool_trash.
35 * When the Butler thread wakes up, we check this trash buffer for CTPs, and if they
36 * are empty they are deleted.
39 class Butler : public SessionHandleRef
42 Butler (Session& session);
46 void terminate_thread();
47 void schedule_transport_work();
50 void wait_until_finished();
51 bool transport_work_requested() const;
52 void drop_references ();
54 framecnt_t audio_diskstream_capture_buffer_size() const { return audio_dstream_capture_buffer_size; }
55 framecnt_t audio_diskstream_playback_buffer_size() const { return audio_dstream_playback_buffer_size; }
56 uint32_t midi_diskstream_buffer_size() const { return midi_dstream_buffer_size; }
58 static void* _thread_work(void *arg);
70 Glib::Mutex request_lock;
73 mutable gint should_do_transport_work;
75 framecnt_t audio_dstream_capture_buffer_size;
76 framecnt_t audio_dstream_playback_buffer_size;
77 uint32_t midi_dstream_buffer_size;
78 RingBuffer<CrossThreadPool*> pool_trash;
81 void empty_pool_trash ();
82 void config_changed (std::string);
87 #endif // __ardour_butler_h__