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livetrax/libs/surfaces/osc/interface.cc
Paul Davis 0d9efc1148 redesign cross-thread registration/signalling system
This new design will work even when threads that need to receive
messages from RT threads are created *after* the RT threads. The
existing design would fail because the RT thread(s) would never
be known the later created threads, and so signals emitted by the
RT thread and causing call_slot() in the receiver would end up
being enqueued using a lock-protected list. The new design ensures
that communication always uses a lock-free FIFO instead
2015-12-28 10:14:17 -05:00

70 lines
2.0 KiB
C++

/*
* Copyright (C) 2009 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.
*
* */
#include "ardour/rc_configuration.h"
#include "control_protocol/control_protocol.h"
#include "osc.h"
using namespace ARDOUR;
using namespace ArdourSurface;
static ControlProtocol*
new_osc_protocol (ControlProtocolDescriptor* /*descriptor*/, Session* s)
{
OSC* osc = new OSC (*s, Config->get_osc_port());
osc->set_active (true);
return osc;
}
static void
delete_osc_protocol (ControlProtocolDescriptor* /*descriptor*/, ControlProtocol* cp)
{
delete cp;
}
static bool
probe_osc_protocol (ControlProtocolDescriptor* /*descriptor*/)
{
return true; // we can always do OSC
}
static void*
osc_request_buffer_factory (uint32_t num_requests)
{
return OSC::request_factory (num_requests);
}
static ControlProtocolDescriptor osc_descriptor = {
/*name : */ "Open Sound Control (OSC)",
/*id : */ "uri://ardour.org/surfaces/osc:0",
/*ptr : */ 0,
/*module : */ 0,
/*mandatory : */ 0,
/*supports_feedback : */ true,
/*probe : */ probe_osc_protocol,
/*initialize : */ new_osc_protocol,
/*destroy : */ delete_osc_protocol,
/*request_buffer_factory */ osc_request_buffer_factory
};
extern "C" ARDOURSURFACE_API ControlProtocolDescriptor* protocol_descriptor () { return &osc_descriptor; }