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git-svn-id: svn://localhost/trunk/ardour2@511 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis
parent
00a106197a
commit
70ab1cce42
2 changed files with 496 additions and 0 deletions
117
libs/ardour/ardour/osc.h
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117
libs/ardour/ardour/osc.h
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/*
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* Copyright (C) 2006 Paul Davis
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*
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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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*
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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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*
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Id$
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*/
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#ifndef ardour_osc_h
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#define ardour_osc_h
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#include <string>
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#include <sys/time.h>
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#include <pthread.h>
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#include <lo/lo.h>
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#include <sigc++/sigc++.h>
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#include <ardour/types.h>
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#include <ardour/basic_ui.h>
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namespace ARDOUR {
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class Session;
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class Route;
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class OSC : public BasicUI, public sigc::trackable
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{
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public:
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OSC (uint32_t port);
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virtual ~OSC();
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void set_session (ARDOUR::Session&);
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int start ();
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int stop ();
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private:
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uint32_t _port;
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volatile bool _ok;
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volatile bool _shutdown;
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lo_server _osc_server;
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lo_server _osc_unix_server;
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std::string _osc_unix_socket_path;
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pthread_t _osc_thread;
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int _request_pipe[2];
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static void * _osc_receiver(void * arg);
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void osc_receiver();
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bool init_osc_thread ();
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void terminate_osc_thread ();
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void poke_osc_thread ();
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void register_callbacks ();
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void session_going_away ();
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std::string get_server_url ();
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std::string get_unix_server_url ();
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#define PATH_CALLBACK(name) \
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static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
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return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
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} \
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int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
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name (); \
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return 0; \
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}
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PATH_CALLBACK(add_marker);
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PATH_CALLBACK(loop_toggle);
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PATH_CALLBACK(goto_start);
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PATH_CALLBACK(goto_end);
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PATH_CALLBACK(rewind);
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PATH_CALLBACK(ffwd);
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PATH_CALLBACK(transport_stop);
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PATH_CALLBACK(transport_play);
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PATH_CALLBACK(save_state);
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PATH_CALLBACK(prev_marker);
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PATH_CALLBACK(next_marker);
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PATH_CALLBACK(undo);
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PATH_CALLBACK(redo);
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PATH_CALLBACK(toggle_punch_in);
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PATH_CALLBACK(toggle_punch_out);
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PATH_CALLBACK(rec_enable_toggle);
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PATH_CALLBACK(toggle_all_rec_enables);
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#define PATH_CALLBACK1(name,type) \
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static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
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return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
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} \
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int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
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if (argc > 0) { \
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name (argv[0]->type); \
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}\
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return 0; \
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}
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PATH_CALLBACK1(set_transport_speed,f);
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};
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}
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#endif // ardour_osc_h
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379
libs/ardour/osc.cc
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379
libs/ardour/osc.cc
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/*
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* Copyright (C) 2006 Paul Davis
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*
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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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*
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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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*
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Id$
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*/
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#include <iostream>
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#include <cstdio>
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#include <cstdlib>
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#include <cerrno>
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#include <algorithm>
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#include <sys/poll.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <ardour/osc.h>
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#include <ardour/session.h>
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#include <ardour/route.h>
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#include <ardour/audio_track.h>
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#include "i18n.h"
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using namespace ARDOUR;
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using namespace sigc;
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using namespace std;
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static void error_callback(int num, const char *m, const char *path)
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{
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#ifdef DEBUG
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fprintf(stderr, "liblo server error %d in path %s: %s\n", num, path, m);
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#endif
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}
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OSC::OSC (uint32_t port)
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: _port(port)
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{
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_shutdown = false;
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_osc_server = 0;
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_osc_unix_server = 0;
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_osc_thread = 0;
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}
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int
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OSC::start ()
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{
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char tmpstr[255];
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for (int j=0; j < 20; ++j) {
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snprintf(tmpstr, sizeof(tmpstr), "%d", _port);
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if ((_osc_server = lo_server_new (tmpstr, error_callback))) {
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break;
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}
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#ifdef DEBUG
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cerr << "can't get osc at port: " << _port << endl;
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#endif
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_port++;
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continue;
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}
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#ifdef ARDOUR_OSC_UNIX_SERVER
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// APPEARS sluggish for now
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// attempt to create unix socket server too
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snprintf(tmpstr, sizeof(tmpstr), "/tmp/sooperlooper_XXXXXX");
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int fd = mkstemp(tmpstr);
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if (fd >= 0 ) {
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unlink (tmpstr);
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close (fd);
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_osc_unix_server = lo_server_new (tmpstr, error_callback);
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if (_osc_unix_server) {
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_osc_unix_socket_path = tmpstr;
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}
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}
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#endif
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cerr << "OSC @ " << get_server_url () << endl;
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register_callbacks();
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// lo_server_thread_add_method(_sthread, NULL, NULL, OSC::_dummy_handler, this);
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if (!init_osc_thread()) {
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return -1;
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}
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return 0;
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}
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int
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OSC::stop ()
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{
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lo_server_free (_osc_server);
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if (!_osc_unix_socket_path.empty()) {
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// unlink it
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unlink(_osc_unix_socket_path.c_str());
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}
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// stop server thread
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terminate_osc_thread();
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return 0;
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}
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OSC::~OSC()
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{
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stop ();
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}
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void
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OSC::register_callbacks()
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{
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lo_server srvs[2];
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lo_server serv;
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srvs[0] = _osc_server;
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srvs[1] = _osc_unix_server;
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for (size_t i = 0; i < 2; ++i) {
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if (!srvs[i]) {
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continue;
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}
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serv = srvs[i];
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#define REGISTER_CALLBACK(serv,path,types, function) lo_server_add_method (serv, path, types, OSC::_ ## function, this)
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REGISTER_CALLBACK (serv, "/ardour/add_marker", "", add_marker);
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REGISTER_CALLBACK (serv, "/ardour/loop_toggle", "", loop_toggle);
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REGISTER_CALLBACK (serv, "/ardour/goto_start", "", goto_start);
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REGISTER_CALLBACK (serv, "/ardour/goto_end", "", goto_end);
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REGISTER_CALLBACK (serv, "/ardour/rewind", "", rewind);
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REGISTER_CALLBACK (serv, "/ardour/ffwd", "", ffwd);
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REGISTER_CALLBACK (serv, "/ardour/transport_stop", "", transport_stop);
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REGISTER_CALLBACK (serv, "/ardour/transport_play", "", transport_play);
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REGISTER_CALLBACK (serv, "/ardour/set_transport_speed", "f", set_transport_speed);
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REGISTER_CALLBACK (serv, "/ardour/save_state", "", save_state);
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REGISTER_CALLBACK (serv, "/ardour/prev_marker", "", prev_marker);
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REGISTER_CALLBACK (serv, "/ardour/next_marker", "", next_marker);
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REGISTER_CALLBACK (serv, "/ardour/undo", "", undo);
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REGISTER_CALLBACK (serv, "/ardour/redo", "", redo);
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REGISTER_CALLBACK (serv, "/ardour/toggle_punch_in", "", toggle_punch_in);
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REGISTER_CALLBACK (serv, "/ardour/toggle_punch_out", "", toggle_punch_out);
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REGISTER_CALLBACK (serv, "/ardour/rec_enable_toggle", "", rec_enable_toggle);
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REGISTER_CALLBACK (serv, "/ardour/toggle_all_rec_enables", "", toggle_all_rec_enables);
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#if 0
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REGISTER_CALLBACK (serv, "/ardour/*/#current_value", "", current_value);
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REGISTER_CALLBACK (serv, "/ardour/set", "", set);
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#endif
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#if 0
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// un/register_update args= s:ctrl s:returl s:retpath
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lo_server_add_method(serv, "/register_update", "sss", OSC::global_register_update_handler, this);
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lo_server_add_method(serv, "/unregister_update", "sss", OSC::global_unregister_update_handler, this);
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lo_server_add_method(serv, "/register_auto_update", "siss", OSC::global_register_auto_update_handler, this);
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lo_server_add_method(serv, "/unregister_auto_update", "sss", OSC::_global_unregister_auto_update_handler, this);
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#endif
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}
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}
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bool
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OSC::init_osc_thread ()
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{
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// create new thread to run server
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if (pipe (_request_pipe)) {
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cerr << "Cannot create osc request signal pipe" << strerror (errno) << endl;
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return false;
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}
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if (fcntl (_request_pipe[0], F_SETFL, O_NONBLOCK)) {
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cerr << "osc: cannot set O_NONBLOCK on signal read pipe " << strerror (errno) << endl;
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return false;
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}
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if (fcntl (_request_pipe[1], F_SETFL, O_NONBLOCK)) {
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cerr << "osc: cannot set O_NONBLOCK on signal write pipe " << strerror (errno) << endl;
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return false;
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}
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pthread_create (&_osc_thread, NULL, &OSC::_osc_receiver, this);
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if (!_osc_thread) {
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return false;
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}
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//pthread_detach (_osc_thread);
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return true;
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}
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void
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OSC::terminate_osc_thread ()
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{
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void* status;
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_shutdown = true;
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poke_osc_thread ();
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pthread_join (_osc_thread, &status);
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}
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void
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OSC::poke_osc_thread ()
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{
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char c;
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if (write (_request_pipe[1], &c, 1) != 1) {
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cerr << "cannot send signal to osc thread! " << strerror (errno) << endl;
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}
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}
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std::string
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OSC::get_server_url()
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{
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string url;
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char * urlstr;
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if (_osc_server) {
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urlstr = lo_server_get_url (_osc_server);
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url = urlstr;
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free (urlstr);
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}
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return url;
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}
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std::string
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OSC::get_unix_server_url()
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{
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string url;
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char * urlstr;
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if (_osc_unix_server) {
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urlstr = lo_server_get_url (_osc_unix_server);
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url = urlstr;
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free (urlstr);
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}
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return url;
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}
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/* server thread */
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void *
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OSC::_osc_receiver(void * arg)
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{
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static_cast<OSC*> (arg)->osc_receiver();
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return 0;
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}
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void
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OSC::osc_receiver()
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{
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struct pollfd pfd[3];
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int fds[3];
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lo_server srvs[3];
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int nfds = 0;
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int timeout = -1;
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int ret;
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fds[0] = _request_pipe[0];
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nfds++;
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if (_osc_server && lo_server_get_socket_fd(_osc_server) >= 0) {
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fds[nfds] = lo_server_get_socket_fd(_osc_server);
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srvs[nfds] = _osc_server;
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nfds++;
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}
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if (_osc_unix_server && lo_server_get_socket_fd(_osc_unix_server) >= 0) {
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fds[nfds] = lo_server_get_socket_fd(_osc_unix_server);
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srvs[nfds] = _osc_unix_server;
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nfds++;
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}
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while (!_shutdown) {
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for (int i=0; i < nfds; ++i) {
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pfd[i].fd = fds[i];
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pfd[i].events = POLLIN|POLLPRI|POLLHUP|POLLERR;
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pfd[i].revents = 0;
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}
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again:
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//cerr << "poll on " << nfds << " for " << timeout << endl;
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if ((ret = poll (pfd, nfds, timeout)) < 0) {
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if (errno == EINTR) {
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/* gdb at work, perhaps */
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cerr << "EINTR hit " << endl;
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goto again;
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}
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cerr << "OSC thread poll failed: " << strerror (errno) << endl;
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break;
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}
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//cerr << "poll returned " << ret << " pfd[0].revents = " << pfd[0].revents << " pfd[1].revents = " << pfd[1].revents << endl;
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if (_shutdown) {
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break;
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}
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if ((pfd[0].revents & ~POLLIN)) {
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cerr << "OSC: error polling extra port" << endl;
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break;
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}
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for (int i=1; i < nfds; ++i) {
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if (pfd[i].revents & POLLIN)
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{
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// this invokes callbacks
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//cerr << "invoking recv on " << pfd[i].fd << endl;
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lo_server_recv(srvs[i]);
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}
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}
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}
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//cerr << "SL engine shutdown" << endl;
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if (_osc_server) {
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int fd = lo_server_get_socket_fd(_osc_server);
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if (fd >=0) {
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// hack around
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close(fd);
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}
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lo_server_free (_osc_server);
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_osc_server = 0;
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}
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if (_osc_unix_server) {
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cerr << "freeing unix server" << endl;
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lo_server_free (_osc_unix_server);
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_osc_unix_server = 0;
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}
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close(_request_pipe[0]);
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close(_request_pipe[1]);
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}
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void
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OSC::set_session (Session& s)
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{
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session = &s;
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session->going_away.connect (mem_fun (*this, &OSC::session_going_away));
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}
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void
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OSC::session_going_away ()
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{
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session = 0;
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}
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/* path callbacks */
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|
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