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 "libsigrok/libsigrok.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();
  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<Session> Context::load_session(string filename)
 218 {
 219         return shared_ptr<Session>(
 220                 new Session(shared_from_this(), filename), Session::Deleter());
 221 }
 222
 223 shared_ptr<Trigger> Context::create_trigger(string name)
 224 {
 225         return shared_ptr<Trigger>(
 226                 new Trigger(shared_from_this(), name), Trigger::Deleter());
 227 }
 228
 229 shared_ptr<Input> Context::open_file(string filename)
 230 {
 231         const struct sr_input *input;
 232
 233         check(sr_input_scan_file(filename.c_str(), &input));
 234         return shared_ptr<Input>(
 235                 new Input(shared_from_this(), input), Input::Deleter());
 236 }
 237
 238 shared_ptr<Input> Context::open_stream(string header)
 239 {
 240         const struct sr_input *input;
 241
 242         auto gstr = g_string_new(header.c_str());
 243         auto ret = sr_input_scan_buffer(gstr, &input);
 244         g_string_free(gstr, true);
 245         check(ret);
 246         return shared_ptr<Input>(
 247                 new Input(shared_from_this(), input), Input::Deleter());
 248 }
 249
 250 Driver::Driver(struct sr_dev_driver *structure) :
 251         ParentOwned(structure),
 252         Configurable(structure, NULL, NULL),
 253         _initialized(false)
 254 {
 255 }
 256
 257 Driver::~Driver()
 258 {
 259 }
 260
 261 string Driver::name()
 262 {
 263         return valid_string(_structure->name);
 264 }
 265
 266 string Driver::long_name()
 267 {
 268         return valid_string(_structure->longname);
 269 }
 270
 271 vector<shared_ptr<HardwareDevice>> Driver::scan(
 272         map<const ConfigKey *, Glib::VariantBase> options)
 273 {
 274         /* Initialise the driver if not yet done. */
 275         if (!_initialized)
 276         {
 277                 check(sr_driver_init(_parent->_structure, _structure));
 278                 _initialized = true;
 279         }
 280
 281         /* Translate scan options to GSList of struct sr_config pointers. */
 282         GSList *option_list = NULL;
 283         for (auto entry : options)
 284         {
 285                 auto key = entry.first;
 286                 auto value = entry.second;
 287                 auto config = g_new(struct sr_config, 1);
 288                 config->key = key->id();
 289                 config->data = value.gobj();
 290                 option_list = g_slist_append(option_list, config);
 291         }
 292
 293         /* Run scan. */
 294         GSList *device_list = sr_driver_scan(_structure, option_list);
 295
 296         /* Free option list. */
 297         g_slist_free_full(option_list, g_free);
 298
 299
 300         /* Create device objects. */
 301         vector<shared_ptr<HardwareDevice>> result;
 302         for (GSList *device = device_list; device; device = device->next)
 303         {
 304                 auto sdi = (struct sr_dev_inst *) device->data;
 305                 result.push_back(shared_ptr<HardwareDevice>(
 306                         new HardwareDevice(shared_from_this(), sdi),
 307                         HardwareDevice::Deleter()));
 308         }
 309
 310         /* Free GSList returned from scan. */
 311         g_slist_free(device_list);
 312
 313         return result;
 314 }
 315
 316 Configurable::Configurable(
 317                 struct sr_dev_driver *driver,
 318                 struct sr_dev_inst *sdi,
 319                 struct sr_channel_group *cg) :
 320         config_driver(driver),
 321         config_sdi(sdi),
 322         config_channel_group(cg)
 323 {
 324 }
 325
 326 Configurable::~Configurable()
 327 {
 328 }
 329
 330 Glib::VariantBase Configurable::config_get(const ConfigKey *key)
 331 {
 332         GVariant *data;
 333         check(sr_config_get(
 334                 config_driver, config_sdi, config_channel_group,
 335                 key->id(), &data));
 336         return Glib::VariantBase(data);
 337 }
 338
 339 void Configurable::config_set(const ConfigKey *key, Glib::VariantBase value)
 340 {
 341         check(sr_config_set(
 342                 config_sdi, config_channel_group,
 343                 key->id(), value.gobj()));
 344 }
 345
 346 Glib::VariantContainerBase Configurable::config_list(const ConfigKey *key)
 347 {
 348         GVariant *data;
 349         check(sr_config_list(
 350                 config_driver, config_sdi, config_channel_group,
 351                 key->id(), &data));
 352         return Glib::VariantContainerBase(data);
 353 }
 354
 355 map<const ConfigKey *, set<Capability>> Configurable::config_keys(const ConfigKey *key)
 356 {
 357         GVariant *gvar_opts;
 358         gsize num_opts;
 359         const uint32_t *opts;
 360         map<const ConfigKey *, set<Capability>> result;
 361
 362         check(sr_config_list(
 363                 config_driver, config_sdi, config_channel_group,
 364                 key->id(), &gvar_opts));
 365
 366         opts = (const uint32_t *) g_variant_get_fixed_array(
 367                 gvar_opts, &num_opts, sizeof(uint32_t));
 368
 369         for (gsize i = 0; i < num_opts; i++)
 370         {
 371                 auto key = ConfigKey::get(opts[i] & SR_CONF_MASK);
 372                 set<Capability> capabilities;
 373                 if (opts[i] & SR_CONF_GET)
 374                         capabilities.insert(GET);
 375                 if (opts[i] & SR_CONF_SET)
 376                         capabilities.insert(SET);
 377                 if (opts[i] & SR_CONF_LIST)
 378                         capabilities.insert(LIST);
 379                 result[key] = capabilities;
 380         }
 381
 382         g_variant_unref(gvar_opts);
 383
 384         return result;
 385 }
 386
 387 bool Configurable::config_check(const ConfigKey *key,
 388         const ConfigKey *index_key)
 389 {
 390         GVariant *gvar_opts;
 391         gsize num_opts;
 392         const uint32_t *opts;
 393
 394         if (sr_config_list(config_driver, config_sdi, config_channel_group,
 395                         index_key->id(), &gvar_opts) != SR_OK)
 396                 return false;
 397
 398         opts = (const uint32_t *) g_variant_get_fixed_array(
 399                 gvar_opts, &num_opts, sizeof(uint32_t));
 400
 401         for (gsize i = 0; i < num_opts; i++)
 402         {
 403                 if ((opts[i] & SR_CONF_MASK) == key->id())
 404                 {
 405                         g_variant_unref(gvar_opts);
 406                         return true;
 407                 }
 408         }
 409
 410         g_variant_unref(gvar_opts);
 411
 412         return false;
 413 }
 414
 415 Device::Device(struct sr_dev_inst *structure) :
 416         Configurable(structure->driver, structure, NULL),
 417         _structure(structure)
 418 {
 419         for (GSList *entry = structure->channels; entry; entry = entry->next)
 420         {
 421                 auto channel = (struct sr_channel *) entry->data;
 422                 _channels[channel] = new Channel(channel);
 423         }
 424
 425         for (GSList *entry = structure->channel_groups; entry; entry = entry->next)
 426         {
 427                 auto group = (struct sr_channel_group *) entry->data;
 428                 _channel_groups[group->name] = new ChannelGroup(this, group);
 429         }
 430 }
 431
 432 Device::~Device()
 433 {
 434         for (auto entry : _channels)
 435                 delete entry.second;
 436         for (auto entry : _channel_groups)
 437                 delete entry.second;
 438 }
 439
 440 string Device::description()
 441 {
 442         ostringstream s;
 443
 444         vector<string> parts =
 445                 {vendor(), model(), version()};
 446
 447         for (string part : parts)
 448                 if (part.length() > 0)
 449                         s << part;
 450
 451         return s.str();
 452 }
 453
 454 string Device::vendor()
 455 {
 456         return valid_string(_structure->vendor);
 457 }
 458
 459 string Device::model()
 460 {
 461         return valid_string(_structure->model);
 462 }
 463
 464 string Device::version()
 465 {
 466         return valid_string(_structure->version);
 467 }
 468
 469 vector<shared_ptr<Channel>> Device::channels()
 470 {
 471         vector<shared_ptr<Channel>> result;
 472         for (auto channel = _structure->channels; channel; channel = channel->next)
 473                 result.push_back(
 474                         _channels[(struct sr_channel *) channel->data]->get_shared_pointer(
 475                                 get_shared_from_this()));
 476         return result;
 477 }
 478
 479 shared_ptr<Channel> Device::get_channel(struct sr_channel *ptr)
 480 {
 481         return _channels[ptr]->get_shared_pointer(get_shared_from_this());
 482 }
 483
 484 map<string, shared_ptr<ChannelGroup>>
 485 Device::channel_groups()
 486 {
 487         map<string, shared_ptr<ChannelGroup>> result;
 488         for (auto entry: _channel_groups)
 489         {
 490                 auto name = entry.first;
 491                 auto channel_group = entry.second;
 492                 result[name] = channel_group->get_shared_pointer(get_shared_from_this());
 493         }
 494         return result;
 495 }
 496
 497 void Device::open()
 498 {
 499         check(sr_dev_open(_structure));
 500 }
 501
 502 void Device::close()
 503 {
 504         check(sr_dev_close(_structure));
 505 }
 506
 507 HardwareDevice::HardwareDevice(shared_ptr<Driver> driver,
 508                 struct sr_dev_inst *structure) :
 509         UserOwned(structure),
 510         Device(structure),
 511         _driver(driver)
 512 {
 513 }
 514
 515 HardwareDevice::~HardwareDevice()
 516 {
 517 }
 518
 519 shared_ptr<Device> HardwareDevice::get_shared_from_this()
 520 {
 521         return static_pointer_cast<Device>(shared_from_this());
 522 }
 523
 524 shared_ptr<Driver> HardwareDevice::driver()
 525 {
 526         return _driver;
 527 }
 528
 529 Channel::Channel(struct sr_channel *structure) :
 530         ParentOwned(structure),
 531         _type(ChannelType::get(_structure->type))
 532 {
 533 }
 534
 535 Channel::~Channel()
 536 {
 537 }
 538
 539 string Channel::name()
 540 {
 541         return valid_string(_structure->name);
 542 }
 543
 544 void Channel::set_name(string name)
 545 {
 546         check(sr_dev_channel_name_set(_parent->_structure,
 547                 _structure->index, name.c_str()));
 548 }
 549
 550 const ChannelType *Channel::type()
 551 {
 552         return ChannelType::get(_structure->type);
 553 }
 554
 555 bool Channel::enabled()
 556 {
 557         return _structure->enabled;
 558 }
 559
 560 void Channel::set_enabled(bool value)
 561 {
 562         check(sr_dev_channel_enable(_parent->_structure, _structure->index, value));
 563 }
 564
 565 unsigned int Channel::index()
 566 {
 567         return _structure->index;
 568 }
 569
 570 ChannelGroup::ChannelGroup(Device *device,
 571                 struct sr_channel_group *structure) :
 572         ParentOwned(structure),
 573         Configurable(device->_structure->driver, device->_structure, structure)
 574 {
 575         for (GSList *entry = structure->channels; entry; entry = entry->next)
 576                 _channels.push_back(device->_channels[(struct sr_channel *)entry->data]);
 577 }
 578
 579 ChannelGroup::~ChannelGroup()
 580 {
 581 }
 582
 583 string ChannelGroup::name()
 584 {
 585         return valid_string(_structure->name);
 586 }
 587
 588 vector<shared_ptr<Channel>> ChannelGroup::channels()
 589 {
 590         vector<shared_ptr<Channel>> result;
 591         for (auto channel : _channels)
 592                 result.push_back(channel->get_shared_pointer(_parent));
 593         return result;
 594 }
 595
 596 Trigger::Trigger(shared_ptr<Context> context, string name) :
 597         UserOwned(sr_trigger_new(name.c_str())),
 598         _context(context)
 599 {
 600         for (auto stage = _structure->stages; stage; stage = stage->next)
 601                 _stages.push_back(
 602                         new TriggerStage((struct sr_trigger_stage *) stage->data));
 603 }
 604
 605 Trigger::~Trigger()
 606 {
 607         for (auto stage: _stages)
 608                 delete stage;
 609
 610         sr_trigger_free(_structure);
 611 }
 612
 613 string Trigger::name()
 614 {
 615         return _structure->name;
 616 }
 617
 618 vector<shared_ptr<TriggerStage>> Trigger::stages()
 619 {
 620         vector<shared_ptr<TriggerStage>> result;
 621         for (auto stage : _stages)
 622                 result.push_back(stage->get_shared_pointer(this));
 623         return result;
 624 }
 625
 626 shared_ptr<TriggerStage> Trigger::add_stage()
 627 {
 628         auto stage = new TriggerStage(sr_trigger_stage_add(_structure));
 629         _stages.push_back(stage);
 630         return stage->get_shared_pointer(this);
 631 }
 632
 633 TriggerStage::TriggerStage(struct sr_trigger_stage *structure) :
 634         ParentOwned(structure)
 635 {
 636 }
 637
 638 TriggerStage::~TriggerStage()
 639 {
 640         for (auto match : _matches)
 641                 delete match;
 642 }
 643
 644 int TriggerStage::number()
 645 {
 646         return _structure->stage;
 647 }
 648
 649 vector<shared_ptr<TriggerMatch>> TriggerStage::matches()
 650 {
 651         vector<shared_ptr<TriggerMatch>> result;
 652         for (auto match : _matches)
 653                 result.push_back(match->get_shared_pointer(this));
 654         return result;
 655 }
 656
 657 void TriggerStage::add_match(shared_ptr<Channel> channel,
 658         const TriggerMatchType *type, float value)
 659 {
 660         check(sr_trigger_match_add(_structure,
 661                 channel->_structure, type->id(), value));
 662         _matches.push_back(new TriggerMatch(
 663                 (struct sr_trigger_match *) g_slist_last(
 664                         _structure->matches)->data, channel));
 665 }
 666
 667 void TriggerStage::add_match(shared_ptr<Channel> channel,
 668         const TriggerMatchType *type)
 669 {
 670         add_match(channel, type, NAN);
 671 }
 672
 673 TriggerMatch::TriggerMatch(struct sr_trigger_match *structure,
 674                 shared_ptr<Channel> channel) :
 675         ParentOwned(structure),
 676         _channel(channel)
 677 {
 678 }
 679
 680 TriggerMatch::~TriggerMatch()
 681 {
 682 }
 683
 684 shared_ptr<Channel> TriggerMatch::channel()
 685 {
 686         return _channel;
 687 }
 688
 689 const TriggerMatchType *TriggerMatch::type()
 690 {
 691         return TriggerMatchType::get(_structure->match);
 692 }
 693
 694 float TriggerMatch::value()
 695 {
 696         return _structure->value;
 697 }
 698
 699 DatafeedCallbackData::DatafeedCallbackData(Session *session,
 700                 DatafeedCallbackFunction callback) :
 701         _callback(callback),
 702         _session(session)
 703 {
 704 }
 705
 706 void DatafeedCallbackData::run(const struct sr_dev_inst *sdi,
 707         const struct sr_datafeed_packet *pkt)
 708 {
 709         auto device = _session->_devices[sdi];
 710         auto packet = shared_ptr<Packet>(new Packet(device, pkt), Packet::Deleter());
 711         _callback(device, packet);
 712 }
 713
 714 SourceCallbackData::SourceCallbackData(shared_ptr<EventSource> source) :
 715         _source(source)
 716 {
 717 }
 718
 719 bool SourceCallbackData::run(int revents)
 720 {
 721         return _source->_callback((Glib::IOCondition) revents);
 722 }
 723
 724 shared_ptr<EventSource> EventSource::create(int fd, Glib::IOCondition events,
 725         int timeout, SourceCallbackFunction callback)
 726 {
 727         auto result = new EventSource(timeout, callback);
 728         result->_type = EventSource::SOURCE_FD;
 729         result->_fd = fd;
 730         result->_events = events;
 731         return shared_ptr<EventSource>(result, EventSource::Deleter());
 732 }
 733
 734 shared_ptr<EventSource> EventSource::create(Glib::PollFD pollfd, int timeout,
 735         SourceCallbackFunction callback)
 736 {
 737         auto result = new EventSource(timeout, callback);
 738         result->_type = EventSource::SOURCE_POLLFD;
 739         result->_pollfd = pollfd;
 740         return shared_ptr<EventSource>(result, EventSource::Deleter());
 741 }
 742
 743 shared_ptr<EventSource> EventSource::create(Glib::RefPtr<Glib::IOChannel> channel,
 744         Glib::IOCondition events, int timeout, SourceCallbackFunction callback)
 745 {
 746         auto result = new EventSource(timeout, callback);
 747         result->_type = EventSource::SOURCE_IOCHANNEL;
 748         result->_channel = channel;
 749         result->_events = events;
 750         return shared_ptr<EventSource>(result, EventSource::Deleter());
 751 }
 752
 753 EventSource::EventSource(int timeout, SourceCallbackFunction callback) :
 754         _timeout(timeout),
 755         _callback(callback)
 756 {
 757 }
 758
 759 EventSource::~EventSource()
 760 {
 761 }
 762
 763 SessionDevice::SessionDevice(struct sr_dev_inst *structure) :
 764         ParentOwned(structure),
 765         Device(structure)
 766 {
 767 }
 768
 769 SessionDevice::~SessionDevice()
 770 {
 771 }
 772
 773 shared_ptr<Device> SessionDevice::get_shared_from_this()
 774 {
 775         return static_pointer_cast<Device>(shared_from_this());
 776 }
 777
 778 Session::Session(shared_ptr<Context> context) :
 779         UserOwned(_structure),
 780         _context(context),
 781         _saving(false)
 782 {
 783         check(sr_session_new(&_structure));
 784         _context->_session = this;
 785 }
 786
 787 Session::Session(shared_ptr<Context> context, string filename) :
 788         UserOwned(_structure),
 789         _context(context),
 790         _saving(false)
 791 {
 792         check(sr_session_load(filename.c_str(), &_structure));
 793         GSList *dev_list;
 794         check(sr_session_dev_list(_structure, &dev_list));
 795         for (GSList *dev = dev_list; dev; dev = dev->next)
 796         {
 797                 auto sdi = (struct sr_dev_inst *) dev->data;
 798                 auto device = new SessionDevice(sdi);
 799                 _devices[sdi] = shared_ptr<SessionDevice>(device,
 800                         SessionDevice::Deleter());
 801         }
 802         _context->_session = this;
 803 }
 804
 805 Session::~Session()
 806 {
 807         check(sr_session_destroy(_structure));
 808
 809         for (auto callback : _datafeed_callbacks)
 810                 delete callback;
 811
 812         for (auto entry : _source_callbacks)
 813                 delete entry.second;
 814 }
 815
 816 void Session::add_device(shared_ptr<Device> device)
 817 {
 818         check(sr_session_dev_add(_structure, device->_structure));
 819         _devices[device->_structure] = device;
 820 }
 821
 822 vector<shared_ptr<Device>> Session::devices()
 823 {
 824         GSList *dev_list;
 825         check(sr_session_dev_list(_structure, &dev_list));
 826         vector<shared_ptr<Device>> result;
 827         for (GSList *dev = dev_list; dev; dev = dev->next)
 828         {
 829                 auto sdi = (struct sr_dev_inst *) dev->data;
 830                 result.push_back(_devices[sdi]);
 831         }
 832         return result;
 833 }
 834
 835 void Session::remove_devices()
 836 {
 837         _devices.clear();
 838         check(sr_session_dev_remove_all(_structure));
 839 }
 840
 841 void Session::start()
 842 {
 843         check(sr_session_start(_structure));
 844 }
 845
 846 void Session::run()
 847 {
 848         check(sr_session_run(_structure));
 849 }
 850
 851 void Session::stop()
 852 {
 853         check(sr_session_stop(_structure));
 854 }
 855
 856 void Session::begin_save(string filename)
 857 {
 858         _saving = true;
 859         _save_initialized = false;
 860         _save_filename = filename;
 861         _save_samplerate = 0;
 862 }
 863
 864 void Session::append(shared_ptr<Packet> packet)
 865 {
 866         if (!_saving)
 867                 throw Error(SR_ERR);
 868
 869         switch (packet->_structure->type)
 870         {
 871                 case SR_DF_META:
 872                 {
 873                         auto meta = (const struct sr_datafeed_meta *)
 874                                 packet->_structure->payload;
 875
 876                         for (auto l = meta->config; l; l = l->next)
 877                         {
 878                                 auto config = (struct sr_config *) l->data;
 879                                 if (config->key == SR_CONF_SAMPLERATE)
 880                                         _save_samplerate = g_variant_get_uint64(config->data);
 881                         }
 882
 883                         break;
 884                 }
 885                 case SR_DF_LOGIC:
 886                 {
 887                         if (_save_samplerate == 0)
 888                         {
 889                                 GVariant *samplerate;
 890
 891                                 check(sr_config_get(packet->_device->_structure->driver,
 892                                         packet->_device->_structure, NULL, SR_CONF_SAMPLERATE,
 893                                         &samplerate));
 894
 895                                 _save_samplerate = g_variant_get_uint64(samplerate);
 896
 897                                 g_variant_unref(samplerate);
 898                         }
 899
 900                         if (!_save_initialized)
 901                         {
 902                                 vector<shared_ptr<Channel>> save_channels;
 903
 904                                 for (auto channel : packet->_device->channels())
 905                                         if (channel->_structure->enabled &&
 906                                                         channel->_structure->type == SR_CHANNEL_LOGIC)
 907                                                 save_channels.push_back(channel);
 908
 909                                 auto channels = g_new(char *, save_channels.size());
 910
 911                                 int i = 0;
 912                                 for (auto channel : save_channels)
 913                                                 channels[i++] = channel->_structure->name;
 914                                 channels[i] = NULL;
 915
 916                                 int ret = sr_session_save_init(_structure, _save_filename.c_str(),
 917                                                 _save_samplerate, channels);
 918
 919                                 g_free(channels);
 920
 921                                 if (ret != SR_OK)
 922                                         throw Error(ret);
 923
 924                                 _save_initialized = true;
 925                         }
 926
 927                         auto logic = (const struct sr_datafeed_logic *)
 928                                 packet->_structure->payload;
 929
 930                         check(sr_session_append(_structure, _save_filename.c_str(),
 931                                 (uint8_t *) logic->data, logic->unitsize,
 932                                 logic->length / logic->unitsize));
 933                 }
 934         }
 935 }
 936
 937 void Session::append(void *data, size_t length, unsigned int unit_size)
 938 {
 939         check(sr_session_append(_structure, _save_filename.c_str(),
 940                 (uint8_t *) data, unit_size, length));
 941 }
 942
 943 static void datafeed_callback(const struct sr_dev_inst *sdi,
 944         const struct sr_datafeed_packet *pkt, void *cb_data)
 945 {
 946         auto callback = static_cast<DatafeedCallbackData *>(cb_data);
 947         callback->run(sdi, pkt);
 948 }
 949
 950 void Session::add_datafeed_callback(DatafeedCallbackFunction callback)
 951 {
 952         auto cb_data = new DatafeedCallbackData(this, callback);
 953         check(sr_session_datafeed_callback_add(_structure,
 954                 datafeed_callback, cb_data));
 955         _datafeed_callbacks.push_back(cb_data);
 956 }
 957
 958 void Session::remove_datafeed_callbacks(void)
 959 {
 960         check(sr_session_datafeed_callback_remove_all(_structure));
 961         for (auto callback : _datafeed_callbacks)
 962                 delete callback;
 963         _datafeed_callbacks.clear();
 964 }
 965
 966 static int source_callback(int fd, int revents, void *cb_data)
 967 {
 968         (void) fd;
 969         auto callback = (SourceCallbackData *) cb_data;
 970         return callback->run(revents);
 971 }
 972
 973 void Session::add_source(shared_ptr<EventSource> source)
 974 {
 975         if (_source_callbacks.count(source) == 1)
 976                 throw Error(SR_ERR_ARG);
 977
 978         auto cb_data = new SourceCallbackData(source);
 979
 980         switch (source->_type)
 981         {
 982                 case EventSource::SOURCE_FD:
 983                         check(sr_session_source_add(_structure, source->_fd, source->_events,
 984                                 source->_timeout, source_callback, cb_data));
 985                         break;
 986                 case EventSource::SOURCE_POLLFD:
 987                         check(sr_session_source_add_pollfd(_structure,
 988                                 source->_pollfd.gobj(), source->_timeout, source_callback,
 989                                 cb_data));
 990                         break;
 991                 case EventSource::SOURCE_IOCHANNEL:
 992                         check(sr_session_source_add_channel(_structure,
 993                                 source->_channel->gobj(), source->_events, source->_timeout,
 994                                 source_callback, cb_data));
 995                         break;
 996         }
 997
 998         _source_callbacks[source] = cb_data;
 999 }
1000
1001 void Session::remove_source(shared_ptr<EventSource> source)
1002 {
1003         if (_source_callbacks.count(source) == 0)
1004                 throw Error(SR_ERR_ARG);
1005
1006         switch (source->_type)
1007         {
1008                 case EventSource::SOURCE_FD:
1009                         check(sr_session_source_remove(_structure, source->_fd));
1010                         break;
1011                 case EventSource::SOURCE_POLLFD:
1012                         check(sr_session_source_remove_pollfd(_structure,
1013                                 source->_pollfd.gobj()));
1014                         break;
1015                 case EventSource::SOURCE_IOCHANNEL:
1016                         check(sr_session_source_remove_channel(_structure,
1017                                 source->_channel->gobj()));
1018                         break;
1019         }
1020
1021         delete _source_callbacks[source];
1022
1023         _source_callbacks.erase(source);
1024 }
1025
1026 shared_ptr<Trigger> Session::trigger()
1027 {
1028         return _trigger;
1029 }
1030
1031 void Session::set_trigger(shared_ptr<Trigger> trigger)
1032 {
1033         check(sr_session_trigger_set(_structure, trigger->_structure));
1034         _trigger = trigger;
1035 }
1036
1037 Packet::Packet(shared_ptr<Device> device,
1038         const struct sr_datafeed_packet *structure) :
1039         UserOwned(structure),
1040         _device(device)
1041 {
1042         switch (structure->type)
1043         {
1044                 case SR_DF_HEADER:
1045                         _payload = new Header(
1046                                 static_cast<const struct sr_datafeed_header *>(
1047                                         structure->payload));
1048                         break;
1049                 case SR_DF_META:
1050                         _payload = new Meta(
1051                                 static_cast<const struct sr_datafeed_meta *>(
1052                                         structure->payload));
1053                         break;
1054                 case SR_DF_LOGIC:
1055                         _payload = new Logic(
1056                                 static_cast<const struct sr_datafeed_logic *>(
1057                                         structure->payload));
1058                         break;
1059                 case SR_DF_ANALOG:
1060                         _payload = new Analog(
1061                                 static_cast<const struct sr_datafeed_analog *>(
1062                                         structure->payload));
1063                         break;
1064                 default:
1065                         _payload = nullptr;
1066                         break;
1067         }
1068 }
1069
1070 Packet::~Packet()
1071 {
1072         if (_payload)
1073                 delete _payload;
1074 }
1075
1076 const PacketType *Packet::type()
1077 {
1078         return PacketType::get(_structure->type);
1079 }
1080
1081 shared_ptr<PacketPayload> Packet::payload()
1082 {
1083         if (_payload)
1084                 return _payload->get_shared_pointer(this);
1085         else
1086                 throw Error(SR_ERR_NA);
1087 }
1088
1089 PacketPayload::PacketPayload()
1090 {
1091 }
1092
1093 PacketPayload::~PacketPayload()
1094 {
1095 }
1096
1097 Header::Header(const struct sr_datafeed_header *structure) :
1098         ParentOwned(structure),
1099         PacketPayload()
1100 {
1101 }
1102
1103 Header::~Header()
1104 {
1105 }
1106
1107 shared_ptr<PacketPayload> Header::get_shared_pointer(Packet *_parent)
1108 {
1109         return static_pointer_cast<PacketPayload>(
1110                 ParentOwned::get_shared_pointer(_parent));
1111 }
1112
1113 int Header::feed_version()
1114 {
1115         return _structure->feed_version;
1116 }
1117
1118 Glib::TimeVal Header::start_time()
1119 {
1120         return Glib::TimeVal(
1121                 _structure->starttime.tv_sec,
1122                 _structure->starttime.tv_usec);
1123 }
1124
1125 Meta::Meta(const struct sr_datafeed_meta *structure) :
1126         ParentOwned(structure),
1127         PacketPayload()
1128 {
1129 }
1130
1131 Meta::~Meta()
1132 {
1133 }
1134
1135 shared_ptr<PacketPayload> Meta::get_shared_pointer(Packet *_parent)
1136 {
1137         return static_pointer_cast<PacketPayload>(
1138                 ParentOwned::get_shared_pointer(_parent));
1139 }
1140
1141 map<const ConfigKey *, Glib::VariantBase> Meta::config()
1142 {
1143         map<const ConfigKey *, Glib::VariantBase> result;
1144         for (auto l = _structure->config; l; l = l->next)
1145         {
1146                 auto config = (struct sr_config *) l->data;
1147                 result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data);
1148         }
1149         return result;
1150 }
1151
1152 Logic::Logic(const struct sr_datafeed_logic *structure) :
1153         ParentOwned(structure),
1154         PacketPayload()
1155 {
1156 }
1157
1158 Logic::~Logic()
1159 {
1160 }
1161
1162 shared_ptr<PacketPayload> Logic::get_shared_pointer(Packet *_parent)
1163 {
1164         return static_pointer_cast<PacketPayload>(
1165                 ParentOwned::get_shared_pointer(_parent));
1166 }
1167
1168 void *Logic::data_pointer()
1169 {
1170         return _structure->data;
1171 }
1172
1173 size_t Logic::data_length()
1174 {
1175         return _structure->length;
1176 }
1177
1178 unsigned int Logic::unit_size()
1179 {
1180         return _structure->unitsize;
1181 }
1182
1183 Analog::Analog(const struct sr_datafeed_analog *structure) :
1184         ParentOwned(structure),
1185         PacketPayload()
1186 {
1187 }
1188
1189 Analog::~Analog()
1190 {
1191 }
1192
1193 shared_ptr<PacketPayload> Analog::get_shared_pointer(Packet *_parent)
1194 {
1195         return static_pointer_cast<PacketPayload>(
1196                 ParentOwned::get_shared_pointer(_parent));
1197 }
1198
1199 float *Analog::data_pointer()
1200 {
1201         return _structure->data;
1202 }
1203
1204 unsigned int Analog::num_samples()
1205 {
1206         return _structure->num_samples;
1207 }
1208
1209 vector<shared_ptr<Channel>> Analog::channels()
1210 {
1211         vector<shared_ptr<Channel>> result;
1212         for (auto l = _structure->channels; l; l = l->next)
1213                 result.push_back(_parent->_device->get_channel(
1214                         (struct sr_channel *)l->data));
1215         return result;
1216 }
1217
1218 const Quantity *Analog::mq()
1219 {
1220         return Quantity::get(_structure->mq);
1221 }
1222
1223 const Unit *Analog::unit()
1224 {
1225         return Unit::get(_structure->unit);
1226 }
1227
1228 vector<const QuantityFlag *> Analog::mq_flags()
1229 {
1230         return QuantityFlag::flags_from_mask(_structure->mqflags);
1231 }
1232
1233 InputFormat::InputFormat(const struct sr_input_module *structure) :
1234         ParentOwned(structure)
1235 {
1236 }
1237
1238 InputFormat::~InputFormat()
1239 {
1240 }
1241
1242 string InputFormat::name()
1243 {
1244         return valid_string(sr_input_id_get(_structure));
1245 }
1246
1247 string InputFormat::description()
1248 {
1249         return valid_string(sr_input_description_get(_structure));
1250 }
1251
1252 map<string, shared_ptr<Option>> InputFormat::options()
1253 {
1254         const struct sr_option **options = sr_input_options_get(_structure);
1255         auto option_array = shared_ptr<const struct sr_option *>(
1256                 options, sr_input_options_free);
1257         map<string, shared_ptr<Option>> result;
1258         for (int i = 0; options[i]; i++)
1259                 result[options[i]->id] = shared_ptr<Option>(
1260                         new Option(options[i], option_array), Option::Deleter());
1261         return result;
1262 }
1263
1264 shared_ptr<Input> InputFormat::create_input(
1265         map<string, Glib::VariantBase> options)
1266 {
1267         auto input = sr_input_new(_structure, map_to_hash_variant(options));
1268         if (!input)
1269                 throw Error(SR_ERR_ARG);
1270         return shared_ptr<Input>(
1271                 new Input(_parent->shared_from_this(), input), Input::Deleter());
1272 }
1273
1274 Input::Input(shared_ptr<Context> context, const struct sr_input *structure) :
1275         UserOwned(structure),
1276         _context(context),
1277         _device(nullptr)
1278 {
1279 }
1280
1281 shared_ptr<InputDevice> Input::device()
1282 {
1283         if (!_device)
1284         {
1285                 auto sdi = sr_input_dev_inst_get(_structure);
1286                 if (!sdi)
1287                         throw Error(SR_ERR_NA);
1288                 _device = new InputDevice(shared_from_this(), sdi);
1289         }
1290
1291         return _device->get_shared_pointer(shared_from_this());
1292 }
1293
1294 void Input::send(string data)
1295 {
1296         auto gstr = g_string_new(data.c_str());
1297         auto ret = sr_input_send(_structure, gstr);
1298         g_string_free(gstr, false);
1299         check(ret);
1300 }
1301
1302 void Input::end()
1303 {
1304         check(sr_input_end(_structure));
1305 }
1306
1307 Input::~Input()
1308 {
1309         if (_device)
1310                 delete _device;
1311         sr_input_free(_structure);
1312 }
1313
1314 InputDevice::InputDevice(shared_ptr<Input> input,
1315                 struct sr_dev_inst *structure) :
1316         ParentOwned(structure),
1317         Device(structure),
1318         _input(input)
1319 {
1320 }
1321
1322 InputDevice::~InputDevice()
1323 {
1324 }
1325
1326 shared_ptr<Device> InputDevice::get_shared_from_this()
1327 {
1328         return static_pointer_cast<Device>(shared_from_this());
1329 }
1330
1331 Option::Option(const struct sr_option *structure,
1332                 shared_ptr<const struct sr_option *> structure_array) :
1333         UserOwned(structure),
1334         _structure_array(structure_array)
1335 {
1336 }
1337
1338 Option::~Option()
1339 {
1340 }
1341
1342 string Option::id()
1343 {
1344         return valid_string(_structure->id);
1345 }
1346
1347 string Option::name()
1348 {
1349         return valid_string(_structure->name);
1350 }
1351
1352 string Option::description()
1353 {
1354         return valid_string(_structure->desc);
1355 }
1356
1357 Glib::VariantBase Option::default_value()
1358 {
1359         return Glib::VariantBase(_structure->def, true);
1360 }
1361
1362 vector<Glib::VariantBase> Option::values()
1363 {
1364         vector<Glib::VariantBase> result;
1365         for (auto l = _structure->values; l; l = l->next)
1366                 result.push_back(Glib::VariantBase((GVariant *) l->data, true));
1367         return result;
1368 }
1369
1370 OutputFormat::OutputFormat(const struct sr_output_module *structure) :
1371         ParentOwned(structure)
1372 {
1373 }
1374
1375 OutputFormat::~OutputFormat()
1376 {
1377 }
1378
1379 string OutputFormat::name()
1380 {
1381         return valid_string(sr_output_id_get(_structure));
1382 }
1383
1384 string OutputFormat::description()
1385 {
1386         return valid_string(sr_output_description_get(_structure));
1387 }
1388
1389 map<string, shared_ptr<Option>> OutputFormat::options()
1390 {
1391         const struct sr_option **options = sr_output_options_get(_structure);
1392         auto option_array = shared_ptr<const struct sr_option *>(
1393                 options, sr_output_options_free);
1394         map<string, shared_ptr<Option>> result;
1395         for (int i = 0; options[i]; i++)
1396                 result[options[i]->id] = shared_ptr<Option>(
1397                         new Option(options[i], option_array), Option::Deleter());
1398         return result;
1399 }
1400
1401 shared_ptr<Output> OutputFormat::create_output(
1402         shared_ptr<Device> device, map<string, Glib::VariantBase> options)
1403 {
1404         return shared_ptr<Output>(
1405                 new Output(shared_from_this(), device, options),
1406                 Output::Deleter());
1407 }
1408
1409 Output::Output(shared_ptr<OutputFormat> format,
1410                 shared_ptr<Device> device, map<string, Glib::VariantBase> options) :
1411         UserOwned(sr_output_new(format->_structure,
1412                 map_to_hash_variant(options), device->_structure)),
1413         _format(format),
1414         _device(device),
1415         _options(options)
1416 {
1417 }
1418
1419 Output::~Output()
1420 {
1421         check(sr_output_free(_structure));
1422 }
1423
1424 string Output::receive(shared_ptr<Packet> packet)
1425 {
1426         GString *out;
1427         check(sr_output_send(_structure, packet->_structure, &out));
1428         if (out)
1429         {
1430                 auto result = string(out->str, out->str + out->len);
1431                 g_string_free(out, true);
1432                 return result;
1433         }
1434         else
1435         {
1436                 return string();
1437         }
1438 }
1439
1440 #include "enums.cpp"
1441
1442 }