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/* |
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* Copyright (C) 2005-2008 by Daniel Wagner |
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* Copyright (C) 2005-2008 by Pieter Palmers |
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* |
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* This file is part of FFADO |
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* FFADO = Free Firewire (pro-)audio drivers for linux |
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* |
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* FFADO is based upon FreeBoB. |
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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) version 3 of the License. |
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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, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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/* |
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* This version uses the CPP API |
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*/ |
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#include "version.h" |
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#include <semaphore.h> |
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#include "libffado/ffado.h" |
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#include "debugmodule/debugmodule.h" |
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#include "fbtypes.h" |
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#include "devicemanager.h" |
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#include "ffadodevice.h" |
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#include <dbus-c++/dbus.h> |
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#include "controlserver.h" |
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#include "libcontrol/BasicElements.h" |
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#include "libutil/Functors.h" |
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#include <signal.h> |
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#include <argp.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <vector> |
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#include <string> |
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#include <iostream> |
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#include <sstream> |
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using namespace std; |
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DECLARE_GLOBAL_DEBUG_MODULE; |
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// DBUS stuff |
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DBus::BusDispatcher dispatcher; |
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DBusControl::Container *container = NULL; |
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DBus::Connection * global_conn; |
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DeviceManager *m_deviceManager = NULL; |
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|
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// signal handler |
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int run=1; |
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sem_t run_sem; |
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static void sighandler (int sig) |
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{ |
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run = 0; |
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dispatcher.leave(); |
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sem_post(&run_sem); |
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} |
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|
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// global's |
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const char *argp_program_version = PACKAGE_STRING; |
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const char *argp_program_bug_address = PACKAGE_BUGREPORT; |
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|
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// Program documentation. |
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static char doc[] = "ffado-dbus-server -- expose the mixer features of connected FFADO devices through DBus\n\n" |
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; |
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// A description of the arguments we accept. |
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static char args_doc[] = ""; |
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struct arguments |
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{ |
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short silent; |
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short verbose; |
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int use_cache; |
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int port; |
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int node_id; |
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int node_id_set; |
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const char* args[2]; |
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}; |
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// The options we understand. |
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static struct argp_option options[] = { |
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{"quiet", 'q', 0, 0, "Don't produce any output" }, |
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{"silent", 's', 0, OPTION_ALIAS }, |
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{"verbose", 'v', "level", 0, "Produce verbose output" }, |
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#if ENABLE_DISCOVERY_CACHE |
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{"cache", 'c', "enable", 0, "Use AVC model cache" }, |
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#endif |
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{"node", 'n', "id", 0, "Only expose mixer of a device on a specific node" }, |
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{"port", 'p', "nr", 0, "IEEE1394 Port to use" }, |
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{ 0 } |
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}; |
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//------------------------------------------------------------- |
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// Parse a single option. |
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static error_t |
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parse_opt( int key, char* arg, struct argp_state* state ) |
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{ |
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// Get the input argument from `argp_parse', which we |
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// know is a pointer to our arguments structure. |
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struct arguments* arguments = ( struct arguments* ) state->input; |
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char* tail; |
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errno = 0; |
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switch (key) { |
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case 'q': case 's': |
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arguments->silent = 1; |
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break; |
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case 'v': |
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if (arg) { |
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arguments->verbose = strtol( arg, &tail, 0 ); |
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if ( errno ) { |
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debugError( "Could not parse 'verbose' argument\n" ); |
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return ARGP_ERR_UNKNOWN; |
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} |
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} |
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break; |
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case 'c': |
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if (arg) { |
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arguments->use_cache = strtol( arg, &tail, 0 ); |
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if ( errno ) { |
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fprintf( stderr, "Could not parse 'cache' argument\n" ); |
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return ARGP_ERR_UNKNOWN; |
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} |
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} |
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break; |
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case 'p': |
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if (arg) { |
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arguments->port = strtol( arg, &tail, 0 ); |
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if ( errno ) { |
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debugError( "Could not parse 'port' argument\n" ); |
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return ARGP_ERR_UNKNOWN; |
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} |
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} else { |
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if ( errno ) { |
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debugError("Could not parse 'port' argumen\n" ); |
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return ARGP_ERR_UNKNOWN; |
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} |
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} |
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break; |
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case 'n': |
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if (arg) { |
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arguments->node_id = strtol( arg, &tail, 0 ); |
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if ( errno ) { |
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debugError( "Could not parse 'node' argument\n" ); |
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return ARGP_ERR_UNKNOWN; |
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} |
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arguments->node_id_set=1; |
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} else { |
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if ( errno ) { |
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debugError("Could not parse 'node' argumen\n" ); |
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return ARGP_ERR_UNKNOWN; |
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} |
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} |
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break; |
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case ARGP_KEY_ARG: |
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if (state->arg_num >= 1) { |
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// Too many arguments. |
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argp_usage( state ); |
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} |
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arguments->args[state->arg_num] = arg; |
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break; |
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case ARGP_KEY_END: |
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if (state->arg_num < 0) { |
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// Not enough arguments. |
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argp_usage( state ); |
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} |
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break; |
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default: |
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return ARGP_ERR_UNKNOWN; |
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} |
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return 0; |
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} |
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// Our argp parser. |
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static struct argp argp = { options, parse_opt, args_doc, doc }; |
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int exitfunction( int retval ) { |
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debugOutput( DEBUG_LEVEL_NORMAL, "Debug output flushed...\n" ); |
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flushDebugOutput(); |
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return retval; |
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} |
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void |
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preUpdateHandler() |
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{ |
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debugOutput( DEBUG_LEVEL_NORMAL, "got pre-update notification...\n" ); |
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// stop receiving dbus events since the control structure is going to |
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// be changed |
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dispatcher.leave(); |
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} |
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void |
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postUpdateHandler() |
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{ |
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debugOutput( DEBUG_LEVEL_NORMAL, "got post-update notification...\n" ); |
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// the signal handlers registered by the elements should have taken |
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// care of updating the control tree |
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// signal that we can start receiving dbus events again |
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sem_post(&run_sem); |
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} |
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int |
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main( int argc, char **argv ) |
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{ |
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struct arguments arguments; |
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printf("-----------------------------------------------\n"); |
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printf("FFADO Control DBUS service\n"); |
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printf("Part of the FFADO project -- www.ffado.org\n"); |
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printf("Version: %s\n", PACKAGE_VERSION); |
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printf("(C) 2008, Pieter Palmers\n"); |
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printf("This program comes with ABSOLUTELY NO WARRANTY.\n"); |
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printf("-----------------------------------------------\n\n"); |
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// check the library version |
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const char *libversion = ffado_get_version(); |
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const char *progversion = PACKAGE_STRING; |
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if(strcmp(libversion, progversion) != 0) { |
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printf("Library version mismatch. (required: %s, present: %s)\n", progversion, libversion); |
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printf("Please run this application against the exact corresponding library\n"); |
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printf("it was compiled for. The most common cause for this is having more\n"); |
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printf("than one version of libffado installed.\n\n"); |
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return exitfunction(-1); |
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} |
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// Default values. |
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arguments.silent = 0; |
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arguments.verbose = DEBUG_LEVEL_NORMAL; |
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arguments.use_cache = 1; |
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arguments.port = 0; |
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arguments.node_id = 0; |
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arguments.node_id_set = 0; // if we don't specify a node, discover all |
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arguments.args[0] = ""; |
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arguments.args[1] = ""; |
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setDebugLevel(arguments.verbose); |
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// Parse our arguments; every option seen by `parse_opt' will |
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// be reflected in `arguments'. |
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if ( argp_parse ( &argp, argc, argv, 0, 0, &arguments ) ) { |
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debugError("Could not parse command line\n" ); |
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return exitfunction(-1); |
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} |
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printMessage(" Discovering devices...\n"); |
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m_deviceManager = new DeviceManager(); |
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if ( !m_deviceManager ) { |
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debugError("Could not allocate device manager\n" ); |
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return exitfunction(-1); |
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} |
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if ( !m_deviceManager->initialize() ) { |
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debugError("Could not initialize device manager\n" ); |
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delete m_deviceManager; |
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return exitfunction(-1); |
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} |
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if ( arguments.verbose ) { |
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m_deviceManager->setVerboseLevel(arguments.verbose); |
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} |
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if ( !m_deviceManager->discover(arguments.use_cache) ) { |
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debugError("Could not discover devices\n" ); |
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delete m_deviceManager; |
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return exitfunction(-1); |
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} |
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// add pre-update handler |
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Util::Functor* preupdate_functor = new Util::CallbackFunctor0< void (*)() > |
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( &preUpdateHandler, false ); |
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if ( !preupdate_functor ) { |
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debugFatal( "Could not create pre-update handler\n" ); |
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return false; |
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} |
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if(!m_deviceManager->registerPreUpdateNotification(preupdate_functor)) { |
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debugError("could not register pre-update notifier"); |
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} |
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// add post-update handler |
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Util::Functor* postupdate_functor = new Util::CallbackFunctor0< void (*)() > |
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( &postUpdateHandler, false ); |
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if ( !postupdate_functor ) { |
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debugFatal( "Could not create post-update handler\n" ); |
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return false; |
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} |
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if(!m_deviceManager->registerPostUpdateNotification(postupdate_functor)) { |
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debugError("could not register post-update notifier"); |
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} |
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signal (SIGINT, sighandler); |
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DBus::_init_threading(); |
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// set up DBUS stuff |
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DBus::default_dispatcher = &dispatcher; |
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DBus::Connection conn = DBus::Connection::SessionBus(); |
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global_conn = &conn; |
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conn.request_name("org.ffado.Control"); |
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// lock the control tree such that it does not get modified while we build our view |
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m_deviceManager->lockControl(); |
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container = new DBusControl::Container(conn, "/org/ffado/Control/DeviceManager", |
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NULL, *m_deviceManager); |
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// unlock the control tree since the tree is built |
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m_deviceManager->unlockControl(); |
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printMessage("DBUS service running\n"); |
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printMessage("press ctrl-c to stop it & exit\n"); |
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while(run) { |
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debugOutput( DEBUG_LEVEL_NORMAL, "dispatching...\n"); |
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dispatcher.enter(); |
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debugOutput( DEBUG_LEVEL_NORMAL, " dispatcher exited...\n"); |
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sem_wait(&run_sem); |
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debugOutput( DEBUG_LEVEL_NORMAL, " activity handled...\n"); |
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} |
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if(!m_deviceManager->unregisterPreUpdateNotification(preupdate_functor)) { |
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debugError("could not unregister pre update notifier"); |
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} |
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delete preupdate_functor; |
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if(!m_deviceManager->unregisterPostUpdateNotification(postupdate_functor)) { |
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debugError("could not unregister post update notifier"); |
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} |
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delete postupdate_functor; |
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delete container; |
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signal (SIGINT, SIG_DFL); |
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printMessage("server stopped\n"); |
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delete m_deviceManager; |
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return exitfunction(0); |
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} |
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