ardour/gtk2_ardour/nsmclient.cc

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/*******************************************************************************/
/* Copyright (C) 2012 Jonathan Moore Liles */
/* */
/* 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; see the file COPYING. If not,write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/*******************************************************************************/
#include "nsmclient.h"
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#ifndef COMPILER_MSVC
#pragma GCC diagnostic ignored "-Wunused-parameter"
#else
#include <process.h> // Needed for 'getpid()'
#include <lo/lo_osc_types.h>
#define LO_TT_IMMEDIATE lo_get_tt_immediate()
lo_timetag lo_get_tt_immediate() { lo_timetag tt = {0U,1U}; return tt; }
#endif
namespace NSM
{
/************************/
/* OSC Message Handlers */
/************************/
#undef OSC_REPLY
#undef OSC_REPLY_ERR
#define OSC_REPLY( value ) lo_send_from( ((NSM::Client*)user_data)->nsm_addr, ((NSM::Client*)user_data)->_server, LO_TT_IMMEDIATE, "/reply", "ss", path, value )
#define OSC_REPLY_ERR( errcode, value ) lo_send_from( ((NSM::Client*)user_data)->nsm_addr, ((NSM::Client*)user_data)->_server, LO_TT_IMMEDIATE, "/error", "sis", path, errcode, value )
Client::Client ( )
{
nsm_addr = 0;
_nsm_client_id = 0;
_nsm_client_path = 0;
_session_manager_name = 0;
nsm_url = "";
nsm_is_active = false;
_server = 0;
_st = 0;
}
Client::~Client ( )
{
if ( _st )
stop();
if ( _st )
lo_server_thread_free( _st );
else
lo_server_free ( _server );
}
void
Client::announce ( const char *application_name, const char *capabilities, const char *process_name )
{
lo_address to = lo_address_new_from_url( nsm_url );
if ( ! to )
{
return;
}
int pid = (int)getpid();
lo_send_from( to, _server, LO_TT_IMMEDIATE, "/nsm/server/announce", "sssiii",
application_name,
capabilities,
process_name,
1, /* api_major_version */
0, /* api_minor_version */
pid );
lo_address_free( to );
}
void
Client::progress ( float p )
{
if ( nsm_is_active )
{
lo_send_from( nsm_addr, _server, LO_TT_IMMEDIATE, "/nsm/client/progress", "f", p );
}
}
void
Client::is_dirty ( void )
{
if ( nsm_is_active )
{
lo_send_from( nsm_addr, _server, LO_TT_IMMEDIATE, "/nsm/client/is_dirty", "" );
}
}
void
Client::is_clean ( void )
{
if ( nsm_is_active )
{
lo_send_from( nsm_addr, _server, LO_TT_IMMEDIATE, "/nsm/client/is_clean", "" );
}
}
void
Client::message ( int priority, const char *msg )
{
if ( nsm_is_active )
{
lo_send_from( nsm_addr, _server, LO_TT_IMMEDIATE, "/nsm/client/message", "is", priority, msg );
}
}
void
Client::broadcast ( lo_message msg )
{
if ( nsm_is_active )
{
lo_send_message_from( nsm_addr, _server, "/nsm/server/broadcast", msg );
}
}
void
Client::check ( int timeout )
{
if ( lo_server_wait( _server, timeout ) )
while ( lo_server_recv_noblock( _server, 0 ) ) {}
}
void
Client::start ( )
{
lo_server_thread_start( _st );
}
void
Client::stop ( )
{
lo_server_thread_stop( _st );
}
int
Client::init ( const char *nsm_url )
{
this->nsm_url = nsm_url;
lo_address addr = lo_address_new_from_url( nsm_url );
int proto = lo_address_get_protocol( addr );
lo_address_free( addr );
_server = lo_server_new_with_proto( NULL, proto, NULL );
if ( ! _server )
return -1;
lo_server_add_method( _server, "/error", "sis", &Client::osc_error, this );
lo_server_add_method( _server, "/reply", "ssss", &Client::osc_announce_reply, this );
lo_server_add_method( _server, "/nsm/client/open", "sss", &Client::osc_open, this );
lo_server_add_method( _server, "/nsm/client/save", "", &Client::osc_save, this );
lo_server_add_method( _server, "/nsm/client/session_is_loaded", "", &Client::osc_session_is_loaded, this );
lo_server_add_method( _server, NULL, NULL, &Client::osc_broadcast, this );
return 0;
}
int
Client::init_thread ( const char *nsm_url )
{
this->nsm_url = nsm_url;
lo_address addr = lo_address_new_from_url( nsm_url );
int proto = lo_address_get_protocol( addr );
lo_address_free( addr );
_st = lo_server_thread_new_with_proto( NULL, proto, NULL );
_server = lo_server_thread_get_server( _st );
if ( ! _server || ! _st )
return -1;
lo_server_thread_add_method( _st, "/error", "sis", &Client::osc_error, this );
lo_server_thread_add_method( _st, "/reply", "ssss", &Client::osc_announce_reply, this );
lo_server_thread_add_method( _st, "/nsm/client/open", "sss", &Client::osc_open, this );
lo_server_thread_add_method( _st, "/nsm/client/save", "", &Client::osc_save, this );
lo_server_thread_add_method( _st, "/nsm/client/session_is_loaded", "", &Client::osc_session_is_loaded, this );
lo_server_thread_add_method( _st, NULL, NULL, &Client::osc_broadcast, this );
return 0;
}
/************************/
/* OSC Message Handlers */
/************************/
int
Client::osc_broadcast ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
{
return ((NSM::Client*)user_data)->command_broadcast( path, msg );
}
int
Client::osc_save ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
{
char *out_msg = NULL;
int r = ((NSM::Client*)user_data)->command_save(&out_msg);
if ( r )
OSC_REPLY_ERR( r, ( out_msg ? out_msg : "") );
else
OSC_REPLY( "OK" );
if ( out_msg )
free( out_msg );
return 0;
}
int
Client::osc_open ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
{
char *out_msg = NULL;
NSM::Client *nsm = (NSM::Client*)user_data;
nsm->_nsm_client_id = strdup( &argv[2]->s );
nsm->_nsm_client_path = strdup( &argv[0]->s );
int r = ((NSM::Client*)user_data)->command_open( &argv[0]->s, &argv[1]->s, &argv[2]->s, &out_msg);
if ( r )
OSC_REPLY_ERR( r, ( out_msg ? out_msg : "") );
else
OSC_REPLY( "OK" );
if ( out_msg )
free( out_msg );
return 0;
}
int
Client::osc_session_is_loaded ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
{
NSM::Client *nsm = (NSM::Client*)user_data;
nsm->command_session_is_loaded();
return 0;
}
int
Client::osc_error ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
{
if ( strcmp( &argv[0]->s, "/nsm/server/announce" ) )
return -1;
NSM::Client *nsm = (NSM::Client*)user_data;
nsm->nsm_is_active = false;
nsm->command_active( nsm->nsm_is_active );
return 0;
}
int
Client::osc_announce_reply ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
{
if ( strcmp( &argv[0]->s, "/nsm/server/announce" ) )
return -1;
NSM::Client *nsm = (NSM::Client*)user_data;
nsm->nsm_is_active = true;
nsm->_session_manager_name = strdup( &argv[2]->s );
nsm->nsm_addr = lo_address_new_from_url( lo_address_get_url( lo_message_get_source( msg ) ));
nsm->command_active( nsm->nsm_is_active );
return 0;
}
};