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ca1de50004
rather than using the process lock to protect it. Prevents a deadlock when removing an aux send causes it to remove itself from its return (#4712). git-svn-id: svn://localhost/ardour2/branches/3.0@11760 d708f5d6-7413-0410-9779-e7cbd77b26cf
100 lines
2.3 KiB
C++
100 lines
2.3 KiB
C++
/*
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Copyright (C) 2009 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <glibmm/thread.h>
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#include "pbd/failed_constructor.h"
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#include "ardour/audio_buffer.h"
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#include "ardour/internal_return.h"
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#include "ardour/mute_master.h"
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#include "ardour/session.h"
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#include "ardour/internal_send.h"
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#include "ardour/audioengine.h"
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using namespace std;
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using namespace ARDOUR;
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InternalReturn::InternalReturn (Session& s)
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: Return (s, true)
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{
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_display_to_user = false;
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}
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void
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InternalReturn::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_frame*/, pframes_t nframes, bool)
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{
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if (!_active && !_pending_active) {
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return;
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}
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Glib::Mutex::Lock lm (_sends_mutex, Glib::TRY_LOCK);
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if (lm.locked ()) {
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for (list<InternalSend*>::iterator i = _sends.begin(); i != _sends.end(); ++i) {
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if ((*i)->active ()) {
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bufs.merge_from ((*i)->get_buffers(), nframes);
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}
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}
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}
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_active = _pending_active;
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}
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void
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InternalReturn::add_send (InternalSend* send)
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{
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Glib::Mutex::Lock lm (_sends_mutex);
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_sends.push_back (send);
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}
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void
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InternalReturn::remove_send (InternalSend* send)
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{
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Glib::Mutex::Lock lm (_sends_mutex);
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_sends.remove (send);
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}
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XMLNode&
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InternalReturn::state (bool full)
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{
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XMLNode& node (Return::state (full));
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/* override type */
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node.add_property("type", "intreturn");
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return node;
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}
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XMLNode&
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InternalReturn::get_state()
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{
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return state (true);
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}
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bool
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InternalReturn::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
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{
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out = in;
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return true;
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}
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bool
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InternalReturn::configure_io (ChanCount in, ChanCount out)
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{
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IOProcessor::configure_io (in, out);
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return true;
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}
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