bindings/cxx/classes.cpp

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2013-2014 Martin Ling <martin-sigrok@earth.li>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "libsigrokcxx/libsigrokcxx.hpp"
  21
  22 #include <sstream>
  23 #include <cmath>
  24
  25 namespace sigrok
  26 {
  27
  28 /** Helper function to translate C errors to C++ exceptions. */
  29 static void check(int result)
  30 {
  31         if (result != SR_OK)
  32                 throw Error(result);
  33 }
  34
  35 /** Helper function to obtain valid strings from possibly null input. */
  36 static const char *valid_string(const char *input)
  37 {
  38         if (input != NULL)
  39                 return input;
  40         else
  41                 return "";
  42 }
  43
  44 /** Helper function to convert between map<string, VariantBase> and GHashTable */
  45 static GHashTable *map_to_hash_variant(map<string, Glib::VariantBase> input)
  46 {
  47         auto output = g_hash_table_new_full(
  48                 g_str_hash, g_str_equal, g_free, (GDestroyNotify) g_variant_unref);
  49         for (auto entry : input)
  50                 g_hash_table_insert(output,
  51                         g_strdup(entry.first.c_str()),
  52                         entry.second.gobj_copy());
  53     return output;
  54 }
  55
  56 Error::Error(int result) : result(result)
  57 {
  58 }
  59
  60 const char *Error::what() const throw()
  61 {
  62         return sr_strerror(result);
  63 }
  64
  65 Error::~Error() throw()
  66 {
  67 }
  68
  69 shared_ptr<Context> Context::create()
  70 {
  71         return shared_ptr<Context>(new Context(), Context::Deleter());
  72 }
  73
  74 Context::Context() :
  75         UserOwned(_structure),
  76         _session(NULL)
  77 {
  78         check(sr_init(&_structure));
  79
  80         struct sr_dev_driver **driver_list = sr_driver_list(_structure);
  81         if (driver_list)
  82                 for (int i = 0; driver_list[i]; i++)
  83                         _drivers[driver_list[i]->name] =
  84                                 new Driver(driver_list[i]);
  85         const struct sr_input_module **input_list = sr_input_list();
  86         if (input_list)
  87                 for (int i = 0; input_list[i]; i++)
  88                         _input_formats[sr_input_id_get(input_list[i])] =
  89                                 new InputFormat(input_list[i]);
  90         const struct sr_output_module **output_list = sr_output_list();
  91         if (output_list)
  92                 for (int i = 0; output_list[i]; i++)
  93                         _output_formats[sr_output_id_get(output_list[i])] =
  94                                 new OutputFormat(output_list[i]);
  95 }
  96
  97 string Context::package_version()
  98 {
  99         return sr_package_version_string_get();
 100 }
 101
 102 string Context::lib_version()
 103 {
 104         return sr_lib_version_string_get();
 105 }
 106
 107 map<string, shared_ptr<Driver>> Context::drivers()
 108 {
 109         map<string, shared_ptr<Driver>> result;
 110         for (auto entry: _drivers)
 111         {
 112                 auto name = entry.first;
 113                 auto driver = entry.second;
 114                 result[name] = driver->get_shared_pointer(this);
 115         }
 116         return result;
 117 }
 118
 119 map<string, shared_ptr<InputFormat>> Context::input_formats()
 120 {
 121         map<string, shared_ptr<InputFormat>> result;
 122         for (auto entry: _input_formats)
 123         {
 124                 auto name = entry.first;
 125                 auto input_format = entry.second;
 126                 result[name] = input_format->get_shared_pointer(this);
 127         }
 128         return result;
 129 }
 130
 131 map<string, shared_ptr<OutputFormat>> Context::output_formats()
 132 {
 133         map<string, shared_ptr<OutputFormat>> result;
 134         for (auto entry: _output_formats)
 135         {
 136                 auto name = entry.first;
 137                 auto output_format = entry.second;
 138                 result[name] = output_format->get_shared_pointer(this);
 139         }
 140         return result;
 141 }
 142
 143 Context::~Context()
 144 {
 145         for (auto entry : _drivers)
 146                 delete entry.second;
 147         for (auto entry : _input_formats)
 148                 delete entry.second;
 149         for (auto entry : _output_formats)
 150                 delete entry.second;
 151         check(sr_exit(_structure));
 152 }
 153
 154 const LogLevel *Context::log_level()
 155 {
 156         return LogLevel::get(sr_log_loglevel_get());
 157 }
 158
 159 void Context::set_log_level(const LogLevel *level)
 160 {
 161         check(sr_log_loglevel_set(level->id()));
 162 }
 163
 164 string Context::log_domain()
 165 {
 166         return valid_string(sr_log_logdomain_get());
 167 }
 168
 169 void Context::set_log_domain(string value)
 170 {
 171         check(sr_log_logdomain_set(value.c_str()));
 172 }
 173
 174 static int call_log_callback(void *cb_data, int loglevel, const char *format, va_list args)
 175 {
 176         va_list args_copy;
 177         va_copy(args_copy, args);
 178         int length = vsnprintf(NULL, 0, format, args_copy);
 179         va_end(args_copy);
 180         char *buf = (char *) g_malloc(length + 1);
 181         vsprintf(buf, format, args);
 182         string message(buf, length);
 183         g_free(buf);
 184
 185         LogCallbackFunction callback = *((LogCallbackFunction *) cb_data);
 186
 187         try
 188         {
 189                 callback(LogLevel::get(loglevel), message);
 190         }
 191         catch (Error e)
 192         {
 193                 return e.result;
 194         }
 195
 196         return SR_OK;
 197 }
 198
 199 void Context::set_log_callback(LogCallbackFunction callback)
 200 {
 201         _log_callback = callback;
 202         check(sr_log_callback_set(call_log_callback, &_log_callback));
 203 }
 204
 205 void Context::set_log_callback_default()
 206 {
 207         check(sr_log_callback_set_default());
 208         _log_callback = nullptr;
 209 }
 210
 211 shared_ptr<Session> Context::create_session()
 212 {
 213         return shared_ptr<Session>(
 214                 new Session(shared_from_this()), Session::Deleter());
 215 }
 216
 217 shared_ptr<UserDevice> Context::create_user_device(
 218                 string vendor, string model, string version)
 219 {
 220         return shared_ptr<UserDevice>(
 221                 new UserDevice(vendor, model, version), UserDevice::Deleter());
 222 }
 223
 224 shared_ptr<Packet> Context::create_header_packet(Glib::TimeVal start_time)
 225 {
 226         auto header = g_new(struct sr_datafeed_header, 1);
 227         header->feed_version = 1;
 228         header->starttime.tv_sec = start_time.tv_sec;
 229         header->starttime.tv_usec = start_time.tv_usec;
 230         auto packet = g_new(struct sr_datafeed_packet, 1);
 231         packet->type = SR_DF_HEADER;
 232         packet->payload = header;
 233         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 234 }
 235
 236 shared_ptr<Packet> Context::create_meta_packet(
 237         map<const ConfigKey *, Glib::VariantBase> config)
 238 {
 239         auto meta = g_new0(struct sr_datafeed_meta, 1);
 240         for (auto input : config)
 241         {
 242                 auto key = input.first;
 243                 auto value = input.second;
 244                 auto output = g_new(struct sr_config, 1);
 245                 output->key = key->id();
 246                 output->data = value.gobj();
 247                 g_variant_ref(output->data);
 248                 meta->config = g_slist_append(meta->config, output);
 249         }
 250         auto packet = g_new(struct sr_datafeed_packet, 1);
 251         packet->type = SR_DF_META;
 252         packet->payload = meta;
 253         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 254 }
 255
 256 shared_ptr<Packet> Context::create_logic_packet(
 257         void *data_pointer, size_t data_length, unsigned int unit_size)
 258 {
 259         auto logic = g_new(struct sr_datafeed_logic, 1);
 260         logic->length = data_length;
 261         logic->unitsize = unit_size;
 262         logic->data = data_pointer;
 263         auto packet = g_new(struct sr_datafeed_packet, 1);
 264         packet->type = SR_DF_LOGIC;
 265         packet->payload = logic;
 266         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 267 }
 268
 269 shared_ptr<Packet> Context::create_analog_packet(
 270         vector<shared_ptr<Channel> > channels,
 271         float *data_pointer, unsigned int num_samples, const Quantity *mq,
 272         const Unit *unit, vector<const QuantityFlag *> mqflags)
 273 {
 274         auto analog = g_new0(struct sr_datafeed_analog, 1);
 275         for (auto channel : channels)
 276                 analog->channels = g_slist_append(analog->channels, channel->_structure);
 277         analog->num_samples = num_samples;
 278         analog->mq = mq->id();
 279         analog->unit = unit->id();
 280         analog->mqflags = QuantityFlag::mask_from_flags(mqflags);
 281         analog->data = data_pointer;
 282         auto packet = g_new(struct sr_datafeed_packet, 1);
 283         packet->type = SR_DF_ANALOG;
 284         packet->payload = analog;
 285         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 286 }
 287
 288 shared_ptr<Session> Context::load_session(string filename)
 289 {
 290         return shared_ptr<Session>(
 291                 new Session(shared_from_this(), filename), Session::Deleter());
 292 }
 293
 294 shared_ptr<Trigger> Context::create_trigger(string name)
 295 {
 296         return shared_ptr<Trigger>(
 297                 new Trigger(shared_from_this(), name), Trigger::Deleter());
 298 }
 299
 300 shared_ptr<Input> Context::open_file(string filename)
 301 {
 302         const struct sr_input *input;
 303
 304         check(sr_input_scan_file(filename.c_str(), &input));
 305         return shared_ptr<Input>(
 306                 new Input(shared_from_this(), input), Input::Deleter());
 307 }
 308
 309 shared_ptr<Input> Context::open_stream(string header)
 310 {
 311         const struct sr_input *input;
 312
 313         auto gstr = g_string_new(header.c_str());
 314         auto ret = sr_input_scan_buffer(gstr, &input);
 315         g_string_free(gstr, true);
 316         check(ret);
 317         return shared_ptr<Input>(
 318                 new Input(shared_from_this(), input), Input::Deleter());
 319 }
 320
 321 map<string, string> Context::serials(shared_ptr<Driver> driver)
 322 {
 323         GSList *serial_list = sr_serial_list(driver ? driver->_structure : NULL);
 324         map<string, string> serials;
 325
 326         for (GSList *serial = serial_list; serial; serial = serial->next) {
 327                 struct sr_serial_port *port = (sr_serial_port *) serial->data;
 328                 serials[string(port->name)] = string(port->description);
 329         }
 330
 331         g_slist_free_full(serial_list, (GDestroyNotify)sr_serial_free);
 332         return serials;
 333 }
 334
 335 Driver::Driver(struct sr_dev_driver *structure) :
 336         ParentOwned(structure),
 337         Configurable(structure, NULL, NULL),
 338         _initialized(false)
 339 {
 340 }
 341
 342 Driver::~Driver()
 343 {
 344 }
 345
 346 string Driver::name()
 347 {
 348         return valid_string(_structure->name);
 349 }
 350
 351 string Driver::long_name()
 352 {
 353         return valid_string(_structure->longname);
 354 }
 355
 356 vector<shared_ptr<HardwareDevice>> Driver::scan(
 357         map<const ConfigKey *, Glib::VariantBase> options)
 358 {
 359         /* Initialise the driver if not yet done. */
 360         if (!_initialized)
 361         {
 362                 check(sr_driver_init(_parent->_structure, _structure));
 363                 _initialized = true;
 364         }
 365
 366         /* Translate scan options to GSList of struct sr_config pointers. */
 367         GSList *option_list = NULL;
 368         for (auto entry : options)
 369         {
 370                 auto key = entry.first;
 371                 auto value = entry.second;
 372                 auto config = g_new(struct sr_config, 1);
 373                 config->key = key->id();
 374                 config->data = value.gobj();
 375                 option_list = g_slist_append(option_list, config);
 376         }
 377
 378         /* Run scan. */
 379         GSList *device_list = sr_driver_scan(_structure, option_list);
 380
 381         /* Free option list. */
 382         g_slist_free_full(option_list, g_free);
 383
 384
 385         /* Create device objects. */
 386         vector<shared_ptr<HardwareDevice>> result;
 387         for (GSList *device = device_list; device; device = device->next)
 388         {
 389                 auto sdi = (struct sr_dev_inst *) device->data;
 390                 result.push_back(shared_ptr<HardwareDevice>(
 391                         new HardwareDevice(shared_from_this(), sdi),
 392                         HardwareDevice::Deleter()));
 393         }
 394
 395         /* Free GSList returned from scan. */
 396         g_slist_free(device_list);
 397
 398         return result;
 399 }
 400
 401 Configurable::Configurable(
 402                 struct sr_dev_driver *driver,
 403                 struct sr_dev_inst *sdi,
 404                 struct sr_channel_group *cg) :
 405         config_driver(driver),
 406         config_sdi(sdi),
 407         config_channel_group(cg)
 408 {
 409 }
 410
 411 Configurable::~Configurable()
 412 {
 413 }
 414
 415 Glib::VariantBase Configurable::config_get(const ConfigKey *key)
 416 {
 417         GVariant *data;
 418         check(sr_config_get(
 419                 config_driver, config_sdi, config_channel_group,
 420                 key->id(), &data));
 421         return Glib::VariantBase(data);
 422 }
 423
 424 void Configurable::config_set(const ConfigKey *key, Glib::VariantBase value)
 425 {
 426         check(sr_config_set(
 427                 config_sdi, config_channel_group,
 428                 key->id(), value.gobj()));
 429 }
 430
 431 Glib::VariantContainerBase Configurable::config_list(const ConfigKey *key)
 432 {
 433         GVariant *data;
 434         check(sr_config_list(
 435                 config_driver, config_sdi, config_channel_group,
 436                 key->id(), &data));
 437         return Glib::VariantContainerBase(data);
 438 }
 439
 440 map<const ConfigKey *, set<Capability>> Configurable::config_keys(const ConfigKey *key)
 441 {
 442         GVariant *gvar_opts;
 443         gsize num_opts;
 444         const uint32_t *opts;
 445         map<const ConfigKey *, set<Capability>> result;
 446
 447         check(sr_config_list(
 448                 config_driver, config_sdi, config_channel_group,
 449                 key->id(), &gvar_opts));
 450
 451         opts = (const uint32_t *) g_variant_get_fixed_array(
 452                 gvar_opts, &num_opts, sizeof(uint32_t));
 453
 454         for (gsize i = 0; i < num_opts; i++)
 455         {
 456                 auto key = ConfigKey::get(opts[i] & SR_CONF_MASK);
 457                 set<Capability> capabilities;
 458                 if (opts[i] & SR_CONF_GET)
 459                         capabilities.insert(GET);
 460                 if (opts[i] & SR_CONF_SET)
 461                         capabilities.insert(SET);
 462                 if (opts[i] & SR_CONF_LIST)
 463                         capabilities.insert(LIST);
 464                 result[key] = capabilities;
 465         }
 466
 467         g_variant_unref(gvar_opts);
 468
 469         return result;
 470 }
 471
 472 bool Configurable::config_check(const ConfigKey *key,
 473         const ConfigKey *index_key)
 474 {
 475         GVariant *gvar_opts;
 476         gsize num_opts;
 477         const uint32_t *opts;
 478
 479         if (sr_config_list(config_driver, config_sdi, config_channel_group,
 480                         index_key->id(), &gvar_opts) != SR_OK)
 481                 return false;
 482
 483         opts = (const uint32_t *) g_variant_get_fixed_array(
 484                 gvar_opts, &num_opts, sizeof(uint32_t));
 485
 486         for (gsize i = 0; i < num_opts; i++)
 487         {
 488                 if ((opts[i] & SR_CONF_MASK) == (uint32_t) key->id())
 489                 {
 490                         g_variant_unref(gvar_opts);
 491                         return true;
 492                 }
 493         }
 494
 495         g_variant_unref(gvar_opts);
 496
 497         return false;
 498 }
 499
 500 Device::Device(struct sr_dev_inst *structure) :
 501         Configurable(sr_dev_inst_driver_get(structure), structure, NULL),
 502         _structure(structure)
 503 {
 504         for (GSList *entry = sr_dev_inst_channels_get(structure); entry; entry = entry->next)
 505         {
 506                 auto channel = (struct sr_channel *) entry->data;
 507                 _channels[channel] = new Channel(channel);
 508         }
 509
 510         for (GSList *entry = sr_dev_inst_channel_groups_get(structure); entry; entry = entry->next)
 511         {
 512                 auto group = (struct sr_channel_group *) entry->data;
 513                 _channel_groups[group->name] = new ChannelGroup(this, group);
 514         }
 515 }
 516
 517 Device::~Device()
 518 {
 519         for (auto entry : _channels)
 520                 delete entry.second;
 521         for (auto entry : _channel_groups)
 522                 delete entry.second;
 523 }
 524
 525 string Device::vendor()
 526 {
 527         return valid_string(sr_dev_inst_vendor_get(_structure));
 528 }
 529
 530 string Device::model()
 531 {
 532         return valid_string(sr_dev_inst_model_get(_structure));
 533 }
 534
 535 string Device::version()
 536 {
 537         return valid_string(sr_dev_inst_version_get(_structure));
 538 }
 539
 540 string Device::serial_number()
 541 {
 542         return valid_string(sr_dev_inst_sernum_get(_structure));
 543 }
 544
 545 string Device::connection_id()
 546 {
 547         return valid_string(sr_dev_inst_connid_get(_structure));
 548 }
 549
 550 vector<shared_ptr<Channel>> Device::channels()
 551 {
 552         vector<shared_ptr<Channel>> result;
 553         for (auto channel = sr_dev_inst_channels_get(_structure); channel; channel = channel->next)
 554                 result.push_back(
 555                         _channels[(struct sr_channel *) channel->data]->get_shared_pointer(
 556                                 get_shared_from_this()));
 557         return result;
 558 }
 559
 560 shared_ptr<Channel> Device::get_channel(struct sr_channel *ptr)
 561 {
 562         return _channels[ptr]->get_shared_pointer(get_shared_from_this());
 563 }
 564
 565 map<string, shared_ptr<ChannelGroup>>
 566 Device::channel_groups()
 567 {
 568         map<string, shared_ptr<ChannelGroup>> result;
 569         for (auto entry: _channel_groups)
 570         {
 571                 auto name = entry.first;
 572                 auto channel_group = entry.second;
 573                 result[name] = channel_group->get_shared_pointer(get_shared_from_this());
 574         }
 575         return result;
 576 }
 577
 578 void Device::open()
 579 {
 580         check(sr_dev_open(_structure));
 581 }
 582
 583 void Device::close()
 584 {
 585         check(sr_dev_close(_structure));
 586 }
 587
 588 HardwareDevice::HardwareDevice(shared_ptr<Driver> driver,
 589                 struct sr_dev_inst *structure) :
 590         UserOwned(structure),
 591         Device(structure),
 592         _driver(driver)
 593 {
 594 }
 595
 596 HardwareDevice::~HardwareDevice()
 597 {
 598 }
 599
 600 shared_ptr<Device> HardwareDevice::get_shared_from_this()
 601 {
 602         return static_pointer_cast<Device>(shared_from_this());
 603 }
 604
 605 shared_ptr<Driver> HardwareDevice::driver()
 606 {
 607         return _driver;
 608 }
 609
 610 UserDevice::UserDevice(string vendor, string model, string version) :
 611         UserOwned(sr_dev_inst_user_new(
 612                 vendor.c_str(), model.c_str(), version.c_str())),
 613         Device(UserOwned::_structure)
 614 {
 615 }
 616
 617 UserDevice::~UserDevice()
 618 {
 619 }
 620
 621 shared_ptr<Device> UserDevice::get_shared_from_this()
 622 {
 623         return static_pointer_cast<Device>(shared_from_this());
 624 }
 625
 626 shared_ptr<Channel> UserDevice::add_channel(unsigned int index,
 627         const ChannelType *type, string name)
 628 {
 629         check(sr_dev_inst_channel_add(Device::_structure,
 630                 index, type->id(), name.c_str()));
 631         struct sr_channel *structure = (struct sr_channel *)
 632                         g_slist_last(sr_dev_inst_channels_get(Device::_structure))->data;
 633         Channel *channel = new Channel(structure);
 634         _channels[structure] = channel;
 635         return get_channel(structure);
 636 }
 637
 638 Channel::Channel(struct sr_channel *structure) :
 639         ParentOwned(structure),
 640         _type(ChannelType::get(_structure->type))
 641 {
 642 }
 643
 644 Channel::~Channel()
 645 {
 646 }
 647
 648 string Channel::name()
 649 {
 650         return valid_string(_structure->name);
 651 }
 652
 653 void Channel::set_name(string name)
 654 {
 655         check(sr_dev_channel_name_set(_structure, name.c_str()));
 656 }
 657
 658 const ChannelType *Channel::type()
 659 {
 660         return ChannelType::get(_structure->type);
 661 }
 662
 663 bool Channel::enabled()
 664 {
 665         return _structure->enabled;
 666 }
 667
 668 void Channel::set_enabled(bool value)
 669 {
 670         check(sr_dev_channel_enable(_structure, value));
 671 }
 672
 673 unsigned int Channel::index()
 674 {
 675         return _structure->index;
 676 }
 677
 678 ChannelGroup::ChannelGroup(Device *device,
 679                 struct sr_channel_group *structure) :
 680         ParentOwned(structure),
 681         Configurable(sr_dev_inst_driver_get(device->_structure), device->_structure, structure)
 682 {
 683         for (GSList *entry = structure->channels; entry; entry = entry->next)
 684                 _channels.push_back(device->_channels[(struct sr_channel *)entry->data]);
 685 }
 686
 687 ChannelGroup::~ChannelGroup()
 688 {
 689 }
 690
 691 string ChannelGroup::name()
 692 {
 693         return valid_string(_structure->name);
 694 }
 695
 696 vector<shared_ptr<Channel>> ChannelGroup::channels()
 697 {
 698         vector<shared_ptr<Channel>> result;
 699         for (auto channel : _channels)
 700                 result.push_back(channel->get_shared_pointer(_parent));
 701         return result;
 702 }
 703
 704 Trigger::Trigger(shared_ptr<Context> context, string name) :
 705         UserOwned(sr_trigger_new(name.c_str())),
 706         _context(context)
 707 {
 708         for (auto stage = _structure->stages; stage; stage = stage->next)
 709                 _stages.push_back(
 710                         new TriggerStage((struct sr_trigger_stage *) stage->data));
 711 }
 712
 713 Trigger::~Trigger()
 714 {
 715         for (auto stage: _stages)
 716                 delete stage;
 717
 718         sr_trigger_free(_structure);
 719 }
 720
 721 string Trigger::name()
 722 {
 723         return _structure->name;
 724 }
 725
 726 vector<shared_ptr<TriggerStage>> Trigger::stages()
 727 {
 728         vector<shared_ptr<TriggerStage>> result;
 729         for (auto stage : _stages)
 730                 result.push_back(stage->get_shared_pointer(this));
 731         return result;
 732 }
 733
 734 shared_ptr<TriggerStage> Trigger::add_stage()
 735 {
 736         auto stage = new TriggerStage(sr_trigger_stage_add(_structure));
 737         _stages.push_back(stage);
 738         return stage->get_shared_pointer(this);
 739 }
 740
 741 TriggerStage::TriggerStage(struct sr_trigger_stage *structure) :
 742         ParentOwned(structure)
 743 {
 744 }
 745
 746 TriggerStage::~TriggerStage()
 747 {
 748         for (auto match : _matches)
 749                 delete match;
 750 }
 751
 752 int TriggerStage::number()
 753 {
 754         return _structure->stage;
 755 }
 756
 757 vector<shared_ptr<TriggerMatch>> TriggerStage::matches()
 758 {
 759         vector<shared_ptr<TriggerMatch>> result;
 760         for (auto match : _matches)
 761                 result.push_back(match->get_shared_pointer(this));
 762         return result;
 763 }
 764
 765 void TriggerStage::add_match(shared_ptr<Channel> channel,
 766         const TriggerMatchType *type, float value)
 767 {
 768         check(sr_trigger_match_add(_structure,
 769                 channel->_structure, type->id(), value));
 770         _matches.push_back(new TriggerMatch(
 771                 (struct sr_trigger_match *) g_slist_last(
 772                         _structure->matches)->data, channel));
 773 }
 774
 775 void TriggerStage::add_match(shared_ptr<Channel> channel,
 776         const TriggerMatchType *type)
 777 {
 778         add_match(channel, type, NAN);
 779 }
 780
 781 TriggerMatch::TriggerMatch(struct sr_trigger_match *structure,
 782                 shared_ptr<Channel> channel) :
 783         ParentOwned(structure),
 784         _channel(channel)
 785 {
 786 }
 787
 788 TriggerMatch::~TriggerMatch()
 789 {
 790 }
 791
 792 shared_ptr<Channel> TriggerMatch::channel()
 793 {
 794         return _channel;
 795 }
 796
 797 const TriggerMatchType *TriggerMatch::type()
 798 {
 799         return TriggerMatchType::get(_structure->match);
 800 }
 801
 802 float TriggerMatch::value()
 803 {
 804         return _structure->value;
 805 }
 806
 807 DatafeedCallbackData::DatafeedCallbackData(Session *session,
 808                 DatafeedCallbackFunction callback) :
 809         _callback(callback),
 810         _session(session)
 811 {
 812 }
 813
 814 void DatafeedCallbackData::run(const struct sr_dev_inst *sdi,
 815         const struct sr_datafeed_packet *pkt)
 816 {
 817         auto device = _session->get_device(sdi);
 818         auto packet = shared_ptr<Packet>(new Packet(device, pkt), Packet::Deleter());
 819         _callback(device, packet);
 820 }
 821
 822 SourceCallbackData::SourceCallbackData(shared_ptr<EventSource> source) :
 823         _source(source)
 824 {
 825 }
 826
 827 bool SourceCallbackData::run(int revents)
 828 {
 829         return _source->_callback((Glib::IOCondition) revents);
 830 }
 831
 832 shared_ptr<EventSource> EventSource::create(int fd, Glib::IOCondition events,
 833         int timeout, SourceCallbackFunction callback)
 834 {
 835         auto result = new EventSource(timeout, callback);
 836         result->_type = EventSource::SOURCE_FD;
 837         result->_fd = fd;
 838         result->_events = events;
 839         return shared_ptr<EventSource>(result, EventSource::Deleter());
 840 }
 841
 842 shared_ptr<EventSource> EventSource::create(Glib::PollFD pollfd, int timeout,
 843         SourceCallbackFunction callback)
 844 {
 845         auto result = new EventSource(timeout, callback);
 846         result->_type = EventSource::SOURCE_POLLFD;
 847         result->_pollfd = pollfd;
 848         return shared_ptr<EventSource>(result, EventSource::Deleter());
 849 }
 850
 851 shared_ptr<EventSource> EventSource::create(Glib::RefPtr<Glib::IOChannel> channel,
 852         Glib::IOCondition events, int timeout, SourceCallbackFunction callback)
 853 {
 854         auto result = new EventSource(timeout, callback);
 855         result->_type = EventSource::SOURCE_IOCHANNEL;
 856         result->_channel = channel;
 857         result->_events = events;
 858         return shared_ptr<EventSource>(result, EventSource::Deleter());
 859 }
 860
 861 EventSource::EventSource(int timeout, SourceCallbackFunction callback) :
 862         _timeout(timeout),
 863         _callback(callback)
 864 {
 865 }
 866
 867 EventSource::~EventSource()
 868 {
 869 }
 870
 871 SessionDevice::SessionDevice(struct sr_dev_inst *structure) :
 872         ParentOwned(structure),
 873         Device(structure)
 874 {
 875 }
 876
 877 SessionDevice::~SessionDevice()
 878 {
 879 }
 880
 881 shared_ptr<Device> SessionDevice::get_shared_from_this()
 882 {
 883         return static_pointer_cast<Device>(shared_from_this());
 884 }
 885
 886 Session::Session(shared_ptr<Context> context) :
 887         UserOwned(_structure),
 888         _context(context),
 889         _saving(false)
 890 {
 891         check(sr_session_new(context->_structure, &_structure));
 892         _context->_session = this;
 893 }
 894
 895 Session::Session(shared_ptr<Context> context, string filename) :
 896         UserOwned(_structure),
 897         _context(context),
 898         _filename(filename),
 899         _saving(false)
 900 {
 901         check(sr_session_load(context->_structure, filename.c_str(), &_structure));
 902         GSList *dev_list;
 903         check(sr_session_dev_list(_structure, &dev_list));
 904         for (GSList *dev = dev_list; dev; dev = dev->next)
 905         {
 906                 auto sdi = (struct sr_dev_inst *) dev->data;
 907                 _owned_devices[sdi] = new SessionDevice(sdi);
 908         }
 909         _context->_session = this;
 910 }
 911
 912 Session::~Session()
 913 {
 914         check(sr_session_destroy(_structure));
 915
 916         for (auto callback : _datafeed_callbacks)
 917                 delete callback;
 918
 919         for (auto entry : _source_callbacks)
 920                 delete entry.second;
 921
 922         for (auto entry : _owned_devices)
 923                 delete entry.second;
 924 }
 925
 926 shared_ptr<Device> Session::get_device(const struct sr_dev_inst *sdi)
 927 {
 928         if (_owned_devices.count(sdi))
 929                 return static_pointer_cast<Device>(
 930                         _owned_devices[sdi]->get_shared_pointer(this));
 931         else if (_other_devices.count(sdi))
 932                 return _other_devices[sdi];
 933         else
 934                 throw Error(SR_ERR_BUG);
 935 }
 936
 937 void Session::add_device(shared_ptr<Device> device)
 938 {
 939         check(sr_session_dev_add(_structure, device->_structure));
 940         _other_devices[device->_structure] = device;
 941 }
 942
 943 vector<shared_ptr<Device>> Session::devices()
 944 {
 945         GSList *dev_list;
 946         check(sr_session_dev_list(_structure, &dev_list));
 947         vector<shared_ptr<Device>> result;
 948         for (GSList *dev = dev_list; dev; dev = dev->next)
 949         {
 950                 auto sdi = (struct sr_dev_inst *) dev->data;
 951                 result.push_back(get_device(sdi));
 952         }
 953         return result;
 954 }
 955
 956 void Session::remove_devices()
 957 {
 958         _other_devices.clear();
 959         check(sr_session_dev_remove_all(_structure));
 960 }
 961
 962 void Session::start()
 963 {
 964         check(sr_session_start(_structure));
 965 }
 966
 967 void Session::run()
 968 {
 969         check(sr_session_run(_structure));
 970 }
 971
 972 void Session::stop()
 973 {
 974         check(sr_session_stop(_structure));
 975 }
 976
 977 void Session::begin_save(string filename)
 978 {
 979         _saving = true;
 980         _save_initialized = false;
 981         _save_filename = filename;
 982         _save_samplerate = 0;
 983 }
 984
 985 void Session::append(shared_ptr<Packet> packet)
 986 {
 987         if (!_saving)
 988                 throw Error(SR_ERR);
 989
 990         switch (packet->_structure->type)
 991         {
 992                 case SR_DF_META:
 993                 {
 994                         auto meta = (const struct sr_datafeed_meta *)
 995                                 packet->_structure->payload;
 996
 997                         for (auto l = meta->config; l; l = l->next)
 998                         {
 999                                 auto config = (struct sr_config *) l->data;
1000                                 if (config->key == SR_CONF_SAMPLERATE)
1001                                         _save_samplerate = g_variant_get_uint64(config->data);
1002                         }
1003
1004                         break;
1005                 }
1006                 case SR_DF_LOGIC:
1007                 {
1008                         if (_save_samplerate == 0)
1009                         {
1010                                 GVariant *samplerate;
1011
1012                                 check(sr_config_get(sr_dev_inst_driver_get(packet->_device->_structure),
1013                                         packet->_device->_structure, NULL, SR_CONF_SAMPLERATE,
1014                                         &samplerate));
1015
1016                                 _save_samplerate = g_variant_get_uint64(samplerate);
1017
1018                                 g_variant_unref(samplerate);
1019                         }
1020
1021                         if (!_save_initialized)
1022                         {
1023                                 vector<shared_ptr<Channel>> save_channels;
1024
1025                                 for (auto channel : packet->_device->channels())
1026                                         if (channel->_structure->enabled &&
1027                                                         channel->_structure->type == SR_CHANNEL_LOGIC)
1028                                                 save_channels.push_back(channel);
1029
1030                                 auto channels = g_new(char *, save_channels.size());
1031
1032                                 int i = 0;
1033                                 for (auto channel : save_channels)
1034                                                 channels[i++] = channel->_structure->name;
1035                                 channels[i] = NULL;
1036
1037                                 int ret = sr_session_save_init(_structure, _save_filename.c_str(),
1038                                                 _save_samplerate, channels);
1039
1040                                 g_free(channels);
1041
1042                                 if (ret != SR_OK)
1043                                         throw Error(ret);
1044
1045                                 _save_initialized = true;
1046                         }
1047
1048                         auto logic = (const struct sr_datafeed_logic *)
1049                                 packet->_structure->payload;
1050
1051                         check(sr_session_append(_structure, _save_filename.c_str(),
1052                                 (uint8_t *) logic->data, logic->unitsize,
1053                                 logic->length / logic->unitsize));
1054                 }
1055         }
1056 }
1057
1058 void Session::append(void *data, size_t length, unsigned int unit_size)
1059 {
1060         check(sr_session_append(_structure, _save_filename.c_str(),
1061                 (uint8_t *) data, unit_size, length));
1062 }
1063
1064 static void datafeed_callback(const struct sr_dev_inst *sdi,
1065         const struct sr_datafeed_packet *pkt, void *cb_data)
1066 {
1067         auto callback = static_cast<DatafeedCallbackData *>(cb_data);
1068         callback->run(sdi, pkt);
1069 }
1070
1071 void Session::add_datafeed_callback(DatafeedCallbackFunction callback)
1072 {
1073         auto cb_data = new DatafeedCallbackData(this, callback);
1074         check(sr_session_datafeed_callback_add(_structure,
1075                 datafeed_callback, cb_data));
1076         _datafeed_callbacks.push_back(cb_data);
1077 }
1078
1079 void Session::remove_datafeed_callbacks(void)
1080 {
1081         check(sr_session_datafeed_callback_remove_all(_structure));
1082         for (auto callback : _datafeed_callbacks)
1083                 delete callback;
1084         _datafeed_callbacks.clear();
1085 }
1086
1087 static int source_callback(int fd, int revents, void *cb_data)
1088 {
1089         (void) fd;
1090         auto callback = (SourceCallbackData *) cb_data;
1091         return callback->run(revents);
1092 }
1093
1094 void Session::add_source(shared_ptr<EventSource> source)
1095 {
1096         if (_source_callbacks.count(source) == 1)
1097                 throw Error(SR_ERR_ARG);
1098
1099         auto cb_data = new SourceCallbackData(source);
1100
1101         switch (source->_type)
1102         {
1103                 case EventSource::SOURCE_FD:
1104                         check(sr_session_source_add(_structure, source->_fd, source->_events,
1105                                 source->_timeout, source_callback, cb_data));
1106                         break;
1107                 case EventSource::SOURCE_POLLFD:
1108                         check(sr_session_source_add_pollfd(_structure,
1109                                 source->_pollfd.gobj(), source->_timeout, source_callback,
1110                                 cb_data));
1111                         break;
1112                 case EventSource::SOURCE_IOCHANNEL:
1113                         check(sr_session_source_add_channel(_structure,
1114                                 source->_channel->gobj(), source->_events, source->_timeout,
1115                                 source_callback, cb_data));
1116                         break;
1117         }
1118
1119         _source_callbacks[source] = cb_data;
1120 }
1121
1122 void Session::remove_source(shared_ptr<EventSource> source)
1123 {
1124         if (_source_callbacks.count(source) == 0)
1125                 throw Error(SR_ERR_ARG);
1126
1127         switch (source->_type)
1128         {
1129                 case EventSource::SOURCE_FD:
1130                         check(sr_session_source_remove(_structure, source->_fd));
1131                         break;
1132                 case EventSource::SOURCE_POLLFD:
1133                         check(sr_session_source_remove_pollfd(_structure,
1134                                 source->_pollfd.gobj()));
1135                         break;
1136                 case EventSource::SOURCE_IOCHANNEL:
1137                         check(sr_session_source_remove_channel(_structure,
1138                                 source->_channel->gobj()));
1139                         break;
1140         }
1141
1142         delete _source_callbacks[source];
1143
1144         _source_callbacks.erase(source);
1145 }
1146
1147 shared_ptr<Trigger> Session::trigger()
1148 {
1149         return _trigger;
1150 }
1151
1152 void Session::set_trigger(shared_ptr<Trigger> trigger)
1153 {
1154         if (!trigger)
1155                 // Set NULL trigger, i.e. remove any trigger from the session.
1156                 check(sr_session_trigger_set(_structure, NULL));
1157         else
1158                 check(sr_session_trigger_set(_structure, trigger->_structure));
1159         _trigger = trigger;
1160 }
1161
1162 string Session::filename()
1163 {
1164         return _filename;
1165 }
1166
1167 shared_ptr<Context> Session::context()
1168 {
1169         return _context;
1170 }
1171
1172 Packet::Packet(shared_ptr<Device> device,
1173         const struct sr_datafeed_packet *structure) :
1174         UserOwned(structure),
1175         _device(device)
1176 {
1177         switch (structure->type)
1178         {
1179                 case SR_DF_HEADER:
1180                         _payload = new Header(
1181                                 static_cast<const struct sr_datafeed_header *>(
1182                                         structure->payload));
1183                         break;
1184                 case SR_DF_META:
1185                         _payload = new Meta(
1186                                 static_cast<const struct sr_datafeed_meta *>(
1187                                         structure->payload));
1188                         break;
1189                 case SR_DF_LOGIC:
1190                         _payload = new Logic(
1191                                 static_cast<const struct sr_datafeed_logic *>(
1192                                         structure->payload));
1193                         break;
1194                 case SR_DF_ANALOG:
1195                         _payload = new Analog(
1196                                 static_cast<const struct sr_datafeed_analog *>(
1197                                         structure->payload));
1198                         break;
1199                 default:
1200                         _payload = nullptr;
1201                         break;
1202         }
1203 }
1204
1205 Packet::~Packet()
1206 {
1207         if (_payload)
1208                 delete _payload;
1209 }
1210
1211 const PacketType *Packet::type()
1212 {
1213         return PacketType::get(_structure->type);
1214 }
1215
1216 shared_ptr<PacketPayload> Packet::payload()
1217 {
1218         if (_payload)
1219                 return _payload->get_shared_pointer(this);
1220         else
1221                 throw Error(SR_ERR_NA);
1222 }
1223
1224 PacketPayload::PacketPayload()
1225 {
1226 }
1227
1228 PacketPayload::~PacketPayload()
1229 {
1230 }
1231
1232 Header::Header(const struct sr_datafeed_header *structure) :
1233         ParentOwned(structure),
1234         PacketPayload()
1235 {
1236 }
1237
1238 Header::~Header()
1239 {
1240 }
1241
1242 shared_ptr<PacketPayload> Header::get_shared_pointer(Packet *_parent)
1243 {
1244         return static_pointer_cast<PacketPayload>(
1245                 ParentOwned::get_shared_pointer(_parent));
1246 }
1247
1248 int Header::feed_version()
1249 {
1250         return _structure->feed_version;
1251 }
1252
1253 Glib::TimeVal Header::start_time()
1254 {
1255         return Glib::TimeVal(
1256                 _structure->starttime.tv_sec,
1257                 _structure->starttime.tv_usec);
1258 }
1259
1260 Meta::Meta(const struct sr_datafeed_meta *structure) :
1261         ParentOwned(structure),
1262         PacketPayload()
1263 {
1264 }
1265
1266 Meta::~Meta()
1267 {
1268 }
1269
1270 shared_ptr<PacketPayload> Meta::get_shared_pointer(Packet *_parent)
1271 {
1272         return static_pointer_cast<PacketPayload>(
1273                 ParentOwned::get_shared_pointer(_parent));
1274 }
1275
1276 map<const ConfigKey *, Glib::VariantBase> Meta::config()
1277 {
1278         map<const ConfigKey *, Glib::VariantBase> result;
1279         for (auto l = _structure->config; l; l = l->next)
1280         {
1281                 auto config = (struct sr_config *) l->data;
1282                 result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data);
1283         }
1284         return result;
1285 }
1286
1287 Logic::Logic(const struct sr_datafeed_logic *structure) :
1288         ParentOwned(structure),
1289         PacketPayload()
1290 {
1291 }
1292
1293 Logic::~Logic()
1294 {
1295 }
1296
1297 shared_ptr<PacketPayload> Logic::get_shared_pointer(Packet *_parent)
1298 {
1299         return static_pointer_cast<PacketPayload>(
1300                 ParentOwned::get_shared_pointer(_parent));
1301 }
1302
1303 void *Logic::data_pointer()
1304 {
1305         return _structure->data;
1306 }
1307
1308 size_t Logic::data_length()
1309 {
1310         return _structure->length;
1311 }
1312
1313 unsigned int Logic::unit_size()
1314 {
1315         return _structure->unitsize;
1316 }
1317
1318 Analog::Analog(const struct sr_datafeed_analog *structure) :
1319         ParentOwned(structure),
1320         PacketPayload()
1321 {
1322 }
1323
1324 Analog::~Analog()
1325 {
1326 }
1327
1328 shared_ptr<PacketPayload> Analog::get_shared_pointer(Packet *_parent)
1329 {
1330         return static_pointer_cast<PacketPayload>(
1331                 ParentOwned::get_shared_pointer(_parent));
1332 }
1333
1334 float *Analog::data_pointer()
1335 {
1336         return _structure->data;
1337 }
1338
1339 unsigned int Analog::num_samples()
1340 {
1341         return _structure->num_samples;
1342 }
1343
1344 vector<shared_ptr<Channel>> Analog::channels()
1345 {
1346         vector<shared_ptr<Channel>> result;
1347         for (auto l = _structure->channels; l; l = l->next)
1348                 result.push_back(_parent->_device->get_channel(
1349                         (struct sr_channel *)l->data));
1350         return result;
1351 }
1352
1353 const Quantity *Analog::mq()
1354 {
1355         return Quantity::get(_structure->mq);
1356 }
1357
1358 const Unit *Analog::unit()
1359 {
1360         return Unit::get(_structure->unit);
1361 }
1362
1363 vector<const QuantityFlag *> Analog::mq_flags()
1364 {
1365         return QuantityFlag::flags_from_mask(_structure->mqflags);
1366 }
1367
1368 InputFormat::InputFormat(const struct sr_input_module *structure) :
1369         ParentOwned(structure)
1370 {
1371 }
1372
1373 InputFormat::~InputFormat()
1374 {
1375 }
1376
1377 string InputFormat::name()
1378 {
1379         return valid_string(sr_input_id_get(_structure));
1380 }
1381
1382 string InputFormat::description()
1383 {
1384         return valid_string(sr_input_description_get(_structure));
1385 }
1386
1387 vector<string> InputFormat::extensions()
1388 {
1389         vector<string> exts;
1390         for (const char *const *e = sr_input_extensions_get(_structure);
1391                 e && *e; e++)
1392                 exts.push_back(*e);
1393         return exts;
1394 }
1395
1396 map<string, shared_ptr<Option>> InputFormat::options()
1397 {
1398         const struct sr_option **options = sr_input_options_get(_structure);
1399         map<string, shared_ptr<Option>> result;
1400         if (options)
1401         {
1402                 auto option_array = shared_ptr<const struct sr_option *>(
1403                         options, sr_input_options_free);
1404                 for (int i = 0; options[i]; i++)
1405                         result[options[i]->id] = shared_ptr<Option>(
1406                                 new Option(options[i], option_array), Option::Deleter());
1407         }
1408         return result;
1409 }
1410
1411 shared_ptr<Input> InputFormat::create_input(
1412         map<string, Glib::VariantBase> options)
1413 {
1414         auto input = sr_input_new(_structure, map_to_hash_variant(options));
1415         if (!input)
1416                 throw Error(SR_ERR_ARG);
1417         return shared_ptr<Input>(
1418                 new Input(_parent->shared_from_this(), input), Input::Deleter());
1419 }
1420
1421 Input::Input(shared_ptr<Context> context, const struct sr_input *structure) :
1422         UserOwned(structure),
1423         _context(context),
1424         _device(nullptr)
1425 {
1426 }
1427
1428 shared_ptr<InputDevice> Input::device()
1429 {
1430         if (!_device)
1431         {
1432                 auto sdi = sr_input_dev_inst_get(_structure);
1433                 if (!sdi)
1434                         throw Error(SR_ERR_NA);
1435                 _device = new InputDevice(shared_from_this(), sdi);
1436         }
1437
1438         return _device->get_shared_pointer(shared_from_this());
1439 }
1440
1441 void Input::send(void *data, size_t length)
1442 {
1443         auto gstr = g_string_new_len((gchar *)data, length);
1444         auto ret = sr_input_send(_structure, gstr);
1445         g_string_free(gstr, false);
1446         check(ret);
1447 }
1448
1449 void Input::end()
1450 {
1451         check(sr_input_end(_structure));
1452 }
1453
1454 Input::~Input()
1455 {
1456         if (_device)
1457                 delete _device;
1458         sr_input_free(_structure);
1459 }
1460
1461 InputDevice::InputDevice(shared_ptr<Input> input,
1462                 struct sr_dev_inst *structure) :
1463         ParentOwned(structure),
1464         Device(structure),
1465         _input(input)
1466 {
1467 }
1468
1469 InputDevice::~InputDevice()
1470 {
1471 }
1472
1473 shared_ptr<Device> InputDevice::get_shared_from_this()
1474 {
1475         return static_pointer_cast<Device>(shared_from_this());
1476 }
1477
1478 Option::Option(const struct sr_option *structure,
1479                 shared_ptr<const struct sr_option *> structure_array) :
1480         UserOwned(structure),
1481         _structure_array(structure_array)
1482 {
1483 }
1484
1485 Option::~Option()
1486 {
1487 }
1488
1489 string Option::id()
1490 {
1491         return valid_string(_structure->id);
1492 }
1493
1494 string Option::name()
1495 {
1496         return valid_string(_structure->name);
1497 }
1498
1499 string Option::description()
1500 {
1501         return valid_string(_structure->desc);
1502 }
1503
1504 Glib::VariantBase Option::default_value()
1505 {
1506         return Glib::VariantBase(_structure->def, true);
1507 }
1508
1509 vector<Glib::VariantBase> Option::values()
1510 {
1511         vector<Glib::VariantBase> result;
1512         for (auto l = _structure->values; l; l = l->next)
1513                 result.push_back(Glib::VariantBase((GVariant *) l->data, true));
1514         return result;
1515 }
1516
1517 OutputFormat::OutputFormat(const struct sr_output_module *structure) :
1518         ParentOwned(structure)
1519 {
1520 }
1521
1522 OutputFormat::~OutputFormat()
1523 {
1524 }
1525
1526 string OutputFormat::name()
1527 {
1528         return valid_string(sr_output_id_get(_structure));
1529 }
1530
1531 string OutputFormat::description()
1532 {
1533         return valid_string(sr_output_description_get(_structure));
1534 }
1535
1536 vector<string> OutputFormat::extensions()
1537 {
1538         vector<string> exts;
1539         for (const char *const *e = sr_output_extensions_get(_structure);
1540                 e && *e; e++)
1541                 exts.push_back(*e);
1542         return exts;
1543 }
1544
1545 map<string, shared_ptr<Option>> OutputFormat::options()
1546 {
1547         const struct sr_option **options = sr_output_options_get(_structure);
1548         map<string, shared_ptr<Option>> result;
1549         if (options)
1550         {
1551                 auto option_array = shared_ptr<const struct sr_option *>(
1552                         options, sr_output_options_free);
1553                 for (int i = 0; options[i]; i++)
1554                         result[options[i]->id] = shared_ptr<Option>(
1555                                 new Option(options[i], option_array), Option::Deleter());
1556         }
1557         return result;
1558 }
1559
1560 shared_ptr<Output> OutputFormat::create_output(
1561         shared_ptr<Device> device, map<string, Glib::VariantBase> options)
1562 {
1563         return shared_ptr<Output>(
1564                 new Output(shared_from_this(), device, options),
1565                 Output::Deleter());
1566 }
1567
1568 Output::Output(shared_ptr<OutputFormat> format,
1569                 shared_ptr<Device> device, map<string, Glib::VariantBase> options) :
1570         UserOwned(sr_output_new(format->_structure,
1571                 map_to_hash_variant(options), device->_structure)),
1572         _format(format),
1573         _device(device),
1574         _options(options)
1575 {
1576 }
1577
1578 Output::~Output()
1579 {
1580         check(sr_output_free(_structure));
1581 }
1582
1583 string Output::receive(shared_ptr<Packet> packet)
1584 {
1585         GString *out;
1586         check(sr_output_send(_structure, packet->_structure, &out));
1587         if (out)
1588         {
1589                 auto result = string(out->str, out->str + out->len);
1590                 g_string_free(out, true);
1591                 return result;
1592         }
1593         else
1594         {
1595                 return string();
1596         }
1597 }
1598
1599 #include "enums.cpp"
1600
1601 }