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
  24 namespace sigrok
  25 {
  26
  27 /** Helper function to translate C errors to C++ exceptions. */
  28 static void check(int result)
  29 {
  30         if (result != SR_OK)
  31                 throw Error(result);
  32 }
  33
  34 /** Helper function to obtain valid strings from possibly null input. */
  35 static const char *valid_string(const char *input)
  36 {
  37         if (input != NULL)
  38                 return input;
  39         else
  40                 return "";
  41 }
  42
  43 /** Helper function to convert between map<string, VariantBase> and GHashTable */
  44 static GHashTable *map_to_hash_variant(map<string, Glib::VariantBase> input)
  45 {
  46         auto output = g_hash_table_new_full(
  47                 g_str_hash, g_str_equal, g_free, (GDestroyNotify) g_variant_unref);
  48         for (auto entry : input)
  49                 g_hash_table_insert(output,
  50                         g_strdup(entry.first.c_str()),
  51                         entry.second.gobj_copy());
  52     return output;
  53 }
  54
  55 Error::Error(int result) : result(result)
  56 {
  57 }
  58
  59 const char *Error::what() const throw()
  60 {
  61         return sr_strerror(result);
  62 }
  63
  64 Error::~Error() throw()
  65 {
  66 }
  67
  68 shared_ptr<Context> Context::create()
  69 {
  70         return shared_ptr<Context>(new Context(), Context::Deleter());
  71 }
  72
  73 Context::Context() :
  74         UserOwned(structure),
  75         session(NULL)
  76 {
  77         check(sr_init(&structure));
  78
  79         struct sr_dev_driver **driver_list = sr_driver_list();
  80         if (driver_list)
  81                 for (int i = 0; driver_list[i]; i++)
  82                         drivers[driver_list[i]->name] =
  83                                 new Driver(driver_list[i]);
  84         const struct sr_input_module **input_list = sr_input_list();
  85         if (input_list)
  86                 for (int i = 0; input_list[i]; i++)
  87                         input_formats[sr_input_id_get(input_list[i])] =
  88                                 new InputFormat(input_list[i]);
  89         const struct sr_output_module **output_list = sr_output_list();
  90         if (output_list)
  91                 for (int i = 0; output_list[i]; i++)
  92                         output_formats[sr_output_id_get(output_list[i])] =
  93                                 new OutputFormat(output_list[i]);
  94 }
  95
  96 string Context::get_package_version()
  97 {
  98         return sr_package_version_string_get();
  99 }
 100
 101 string Context::get_lib_version()
 102 {
 103         return sr_lib_version_string_get();
 104 }
 105
 106 map<string, shared_ptr<Driver>> Context::get_drivers()
 107 {
 108         map<string, shared_ptr<Driver>> result;
 109         for (auto entry: drivers)
 110         {
 111                 auto name = entry.first;
 112                 auto driver = entry.second;
 113                 result[name] = driver->get_shared_pointer(this);
 114         }
 115         return result;
 116 }
 117
 118 map<string, shared_ptr<InputFormat>> Context::get_input_formats()
 119 {
 120         map<string, shared_ptr<InputFormat>> result;
 121         for (auto entry: input_formats)
 122         {
 123                 auto name = entry.first;
 124                 auto input_format = entry.second;
 125                 result[name] = input_format->get_shared_pointer(this);
 126         }
 127         return result;
 128 }
 129
 130 map<string, shared_ptr<OutputFormat>> Context::get_output_formats()
 131 {
 132         map<string, shared_ptr<OutputFormat>> result;
 133         for (auto entry: output_formats)
 134         {
 135                 auto name = entry.first;
 136                 auto output_format = entry.second;
 137                 result[name] = output_format->get_shared_pointer(this);
 138         }
 139         return result;
 140 }
 141
 142 Context::~Context()
 143 {
 144         for (auto entry : drivers)
 145                 delete entry.second;
 146         for (auto entry : input_formats)
 147                 delete entry.second;
 148         for (auto entry : output_formats)
 149                 delete entry.second;
 150         check(sr_exit(structure));
 151 }
 152
 153 const LogLevel *Context::get_log_level()
 154 {
 155         return LogLevel::get(sr_log_loglevel_get());
 156 }
 157
 158 void Context::set_log_level(const LogLevel *level)
 159 {
 160         check(sr_log_loglevel_set(level->get_id()));
 161 }
 162
 163 string Context::get_log_domain()
 164 {
 165         return valid_string(sr_log_logdomain_get());
 166 }
 167
 168 void Context::set_log_domain(string value)
 169 {
 170         check(sr_log_logdomain_set(value.c_str()));
 171 }
 172
 173 static int call_log_callback(void *cb_data, int loglevel, const char *format, va_list args)
 174 {
 175         va_list args_copy;
 176         va_copy(args_copy, args);
 177         int length = vsnprintf(NULL, 0, format, args_copy);
 178         va_end(args_copy);
 179         char *buf = (char *) g_malloc(length + 1);
 180         vsprintf(buf, format, args);
 181         string message(buf, length);
 182         g_free(buf);
 183
 184         LogCallbackFunction callback = *((LogCallbackFunction *) cb_data);
 185
 186         try
 187         {
 188                 callback(LogLevel::get(loglevel), message);
 189         }
 190         catch (Error e)
 191         {
 192                 return e.result;
 193         }
 194
 195         return SR_OK;
 196 }
 197
 198 void Context::set_log_callback(LogCallbackFunction callback)
 199 {
 200         log_callback = callback;
 201         check(sr_log_callback_set(call_log_callback, &log_callback));
 202 }
 203
 204 void Context::set_log_callback_default()
 205 {
 206         check(sr_log_callback_set_default());
 207         log_callback = nullptr;
 208 }
 209
 210 shared_ptr<Session> Context::create_session()
 211 {
 212         return shared_ptr<Session>(
 213                 new Session(shared_from_this()), Session::Deleter());
 214 }
 215
 216 shared_ptr<Session> Context::load_session(string filename)
 217 {
 218         return shared_ptr<Session>(
 219                 new Session(shared_from_this(), filename), Session::Deleter());
 220 }
 221
 222 shared_ptr<Trigger> Context::create_trigger(string name)
 223 {
 224         return shared_ptr<Trigger>(
 225                 new Trigger(shared_from_this(), name), Trigger::Deleter());
 226 }
 227
 228 shared_ptr<Input> Context::open_file(string filename)
 229 {
 230         const struct sr_input *input;
 231
 232         check( sr_input_scan_file(filename.c_str(), &input));
 233         return shared_ptr<Input>(
 234                 new Input(shared_from_this(), input), Input::Deleter());
 235 }
 236
 237 shared_ptr<Input> Context::open_stream(string header)
 238 {
 239         const struct sr_input *input;
 240
 241         auto gstr = g_string_new(header.c_str());
 242         auto ret = sr_input_scan_buffer(gstr, &input);
 243         g_string_free(gstr, true);
 244         check(ret);
 245         return shared_ptr<Input>(
 246                 new Input(shared_from_this(), input), Input::Deleter());
 247 }
 248
 249 Driver::Driver(struct sr_dev_driver *structure) :
 250         ParentOwned(structure),
 251         Configurable(structure, NULL, NULL),
 252         initialized(false)
 253 {
 254 }
 255
 256 Driver::~Driver()
 257 {
 258         for (auto device : devices)
 259                 delete device;
 260 }
 261
 262 string Driver::get_name()
 263 {
 264         return valid_string(structure->name);
 265 }
 266
 267 string Driver::get_long_name()
 268 {
 269         return valid_string(structure->longname);
 270 }
 271
 272 vector<shared_ptr<HardwareDevice>> Driver::scan(
 273         map<const ConfigKey *, Glib::VariantBase> options)
 274 {
 275         /* Initialise the driver if not yet done. */
 276         if (!initialized)
 277         {
 278                 check(sr_driver_init(parent->structure, structure));
 279                 initialized = true;
 280         }
 281
 282         /* Clear all existing instances. */
 283         for (auto device : devices)
 284                 delete device;
 285         devices.clear();
 286
 287         /* Translate scan options to GSList of struct sr_config pointers. */
 288         GSList *option_list = NULL;
 289         for (auto entry : options)
 290         {
 291                 auto key = entry.first;
 292                 auto value = entry.second;
 293                 auto config = g_new(struct sr_config, 1);
 294                 config->key = key->get_id();
 295                 config->data = value.gobj();
 296                 option_list = g_slist_append(option_list, config);
 297         }
 298
 299         /* Run scan. */
 300         GSList *device_list = sr_driver_scan(structure, option_list);
 301
 302         /* Free option list. */
 303         g_slist_free_full(option_list, g_free);
 304
 305         /* Create device objects. */
 306         for (GSList *device = device_list; device; device = device->next)
 307         {
 308                 auto sdi = (struct sr_dev_inst *) device->data;
 309                 devices.push_back(new HardwareDevice(this, sdi));
 310         }
 311
 312         /* Free GSList returned from scan. */
 313         g_slist_free(device_list);
 314
 315         /* Create list of shared pointers to device instances for return. */
 316         vector<shared_ptr<HardwareDevice>> result;
 317         for (auto device : devices)
 318                 result.push_back(device->get_shared_pointer(parent));
 319         return result;
 320 }
 321
 322 Configurable::Configurable(
 323                 struct sr_dev_driver *driver,
 324                 struct sr_dev_inst *sdi,
 325                 struct sr_channel_group *cg) :
 326         config_driver(driver),
 327         config_sdi(sdi),
 328         config_channel_group(cg)
 329 {
 330 }
 331
 332 Configurable::~Configurable()
 333 {
 334 }
 335
 336 Glib::VariantBase Configurable::config_get(const ConfigKey *key)
 337 {
 338         GVariant *data;
 339         check(sr_config_get(
 340                 config_driver, config_sdi, config_channel_group,
 341                 key->get_id(), &data));
 342         return Glib::VariantBase(data);
 343 }
 344
 345 void Configurable::config_set(const ConfigKey *key, Glib::VariantBase value)
 346 {
 347         check(sr_config_set(
 348                 config_sdi, config_channel_group,
 349                 key->get_id(), value.gobj()));
 350 }
 351
 352 Glib::VariantContainerBase Configurable::config_list(const ConfigKey *key)
 353 {
 354         GVariant *data;
 355         check(sr_config_list(
 356                 config_driver, config_sdi, config_channel_group,
 357                 key->get_id(), &data));
 358         return Glib::VariantContainerBase(data);
 359 }
 360
 361 vector<const ConfigKey *> Configurable::config_keys(const ConfigKey *key)
 362 {
 363         GVariant *gvar_opts;
 364         gsize num_opts;
 365         const int32_t *opts;
 366         vector<const ConfigKey *> result;
 367
 368         check(sr_config_list(
 369                 config_driver, config_sdi, config_channel_group,
 370                 key->get_id(), &gvar_opts));
 371
 372         opts = (const int32_t *) g_variant_get_fixed_array(
 373                 gvar_opts, &num_opts, sizeof(int32_t));
 374
 375         for (gsize i = 0; i < num_opts; i++)
 376                 result.push_back(ConfigKey::get(opts[i]));
 377
 378         g_variant_unref(gvar_opts);
 379
 380         return result;
 381 }
 382
 383 Device::Device(struct sr_dev_inst *structure) :
 384         Configurable(structure->driver, structure, NULL),
 385         structure(structure)
 386 {
 387         for (GSList *entry = structure->channels; entry; entry = entry->next)
 388         {
 389                 auto channel = (struct sr_channel *) entry->data;
 390                 channels[channel] = new Channel(channel);
 391         }
 392
 393         for (GSList *entry = structure->channel_groups; entry; entry = entry->next)
 394         {
 395                 auto group = (struct sr_channel_group *) entry->data;
 396                 channel_groups[group->name] = new ChannelGroup(this, group);
 397         }
 398 }
 399
 400 Device::~Device()
 401 {
 402         for (auto entry : channels)
 403                 delete entry.second;
 404         for (auto entry : channel_groups)
 405                 delete entry.second;
 406 }
 407
 408 string Device::get_description()
 409 {
 410         ostringstream s;
 411
 412         vector<string> parts =
 413                 {get_vendor(), get_model(), get_version()};
 414
 415         for (string part : parts)
 416                 if (part.length() > 0)
 417                         s << part;
 418
 419         return s.str();
 420 }
 421
 422 string Device::get_vendor()
 423 {
 424         return valid_string(structure->vendor);
 425 }
 426
 427 string Device::get_model()
 428 {
 429         return valid_string(structure->model);
 430 }
 431
 432 string Device::get_version()
 433 {
 434         return valid_string(structure->version);
 435 }
 436
 437 vector<shared_ptr<Channel>> Device::get_channels()
 438 {
 439         vector<shared_ptr<Channel>> result;
 440         for (auto entry : channels)
 441                 result.push_back(entry.second->get_shared_pointer(get_shared_from_this()));
 442         return result;
 443 }
 444
 445 shared_ptr<Channel> Device::get_channel(struct sr_channel *ptr)
 446 {
 447         return channels[ptr]->get_shared_pointer(get_shared_from_this());
 448 }
 449
 450 map<string, shared_ptr<ChannelGroup>>
 451 Device::get_channel_groups()
 452 {
 453         map<string, shared_ptr<ChannelGroup>> result;
 454         for (auto entry: channel_groups)
 455         {
 456                 auto name = entry.first;
 457                 auto channel_group = entry.second;
 458                 result[name] = channel_group->get_shared_pointer(get_shared_from_this());
 459         }
 460         return result;
 461 }
 462
 463 void Device::open()
 464 {
 465         check(sr_dev_open(structure));
 466 }
 467
 468 void Device::close()
 469 {
 470         check(sr_dev_close(structure));
 471 }
 472
 473 HardwareDevice::HardwareDevice(Driver *driver, struct sr_dev_inst *structure) :
 474         ParentOwned(structure),
 475         Device(structure),
 476         driver(driver)
 477 {
 478 }
 479
 480 HardwareDevice::~HardwareDevice()
 481 {
 482 }
 483
 484 shared_ptr<Device> HardwareDevice::get_shared_from_this()
 485 {
 486         return static_pointer_cast<Device>(shared_from_this());
 487 }
 488
 489 shared_ptr<Driver> HardwareDevice::get_driver()
 490 {
 491         return driver->get_shared_pointer(parent);
 492 }
 493
 494 Channel::Channel(struct sr_channel *structure) :
 495         ParentOwned(structure),
 496         type(ChannelType::get(structure->type))
 497 {
 498 }
 499
 500 Channel::~Channel()
 501 {
 502 }
 503
 504 string Channel::get_name()
 505 {
 506         return valid_string(structure->name);
 507 }
 508
 509 void Channel::set_name(string name)
 510 {
 511         check(sr_dev_channel_name_set(parent->structure, structure->index, name.c_str()));
 512 }
 513
 514 const ChannelType *Channel::get_type()
 515 {
 516         return ChannelType::get(structure->type);
 517 }
 518
 519 bool Channel::get_enabled()
 520 {
 521         return structure->enabled;
 522 }
 523
 524 void Channel::set_enabled(bool value)
 525 {
 526         check(sr_dev_channel_enable(parent->structure, structure->index, value));
 527 }
 528
 529 unsigned int Channel::get_index()
 530 {
 531         return structure->index;
 532 }
 533
 534 ChannelGroup::ChannelGroup(Device *device,
 535                 struct sr_channel_group *structure) :
 536         ParentOwned(structure),
 537         Configurable(device->structure->driver, device->structure, structure)
 538 {
 539         for (GSList *entry = structure->channels; entry; entry = entry->next)
 540                 channels.push_back(device->channels[(struct sr_channel *)entry->data]);
 541 }
 542
 543 ChannelGroup::~ChannelGroup()
 544 {
 545 }
 546
 547 string ChannelGroup::get_name()
 548 {
 549         return valid_string(structure->name);
 550 }
 551
 552 vector<shared_ptr<Channel>> ChannelGroup::get_channels()
 553 {
 554         vector<shared_ptr<Channel>> result;
 555         for (auto channel : channels)
 556                 result.push_back(channel->get_shared_pointer(parent));
 557         return result;
 558 }
 559
 560 Trigger::Trigger(shared_ptr<Context> context, string name) :
 561         UserOwned(sr_trigger_new(name.c_str())),
 562         context(context)
 563 {
 564         for (auto stage = structure->stages; stage; stage = stage->next)
 565                 stages.push_back(new TriggerStage((struct sr_trigger_stage *) stage->data));
 566 }
 567
 568 Trigger::~Trigger()
 569 {
 570         for (auto stage: stages)
 571                 delete stage;
 572
 573         sr_trigger_free(structure);
 574 }
 575
 576 string Trigger::get_name()
 577 {
 578         return structure->name;
 579 }
 580
 581 vector<shared_ptr<TriggerStage>> Trigger::get_stages()
 582 {
 583         vector<shared_ptr<TriggerStage>> result;
 584         for (auto stage : stages)
 585                 result.push_back(stage->get_shared_pointer(this));
 586         return result;
 587 }
 588
 589 shared_ptr<TriggerStage> Trigger::add_stage()
 590 {
 591         auto stage = new TriggerStage(sr_trigger_stage_add(structure));
 592         stages.push_back(stage);
 593         return stage->get_shared_pointer(this);
 594 }
 595
 596 TriggerStage::TriggerStage(struct sr_trigger_stage *structure) :
 597         ParentOwned(structure)
 598 {
 599 }
 600
 601 TriggerStage::~TriggerStage()
 602 {
 603         for (auto match : matches)
 604                 delete match;
 605 }
 606
 607 int TriggerStage::get_number()
 608 {
 609         return structure->stage;
 610 }
 611
 612 vector<shared_ptr<TriggerMatch>> TriggerStage::get_matches()
 613 {
 614         vector<shared_ptr<TriggerMatch>> result;
 615         for (auto match : matches)
 616                 result.push_back(match->get_shared_pointer(this));
 617         return result;
 618 }
 619
 620 void TriggerStage::add_match(shared_ptr<Channel> channel, const TriggerMatchType *type, float value)
 621 {
 622         check(sr_trigger_match_add(structure, channel->structure, type->get_id(), value));
 623         matches.push_back(new TriggerMatch(
 624                 (struct sr_trigger_match *) g_slist_last(structure->matches)->data, channel));
 625 }
 626
 627 void TriggerStage::add_match(shared_ptr<Channel> channel, const TriggerMatchType *type)
 628 {
 629         add_match(channel, type, NAN);
 630 }
 631
 632 TriggerMatch::TriggerMatch(struct sr_trigger_match *structure, shared_ptr<Channel> channel) :
 633         ParentOwned(structure), channel(channel)
 634 {
 635 }
 636
 637 TriggerMatch::~TriggerMatch()
 638 {
 639 }
 640
 641 shared_ptr<Channel> TriggerMatch::get_channel()
 642 {
 643         return channel;
 644 }
 645
 646 const TriggerMatchType *TriggerMatch::get_type()
 647 {
 648         return TriggerMatchType::get(structure->match);
 649 }
 650
 651 float TriggerMatch::get_value()
 652 {
 653         return structure->value;
 654 }
 655
 656 DatafeedCallbackData::DatafeedCallbackData(Session *session,
 657                 DatafeedCallbackFunction callback) :
 658         callback(callback), session(session)
 659 {
 660 }
 661
 662 void DatafeedCallbackData::run(const struct sr_dev_inst *sdi,
 663         const struct sr_datafeed_packet *pkt)
 664 {
 665         auto device = session->devices[sdi];
 666         auto packet = shared_ptr<Packet>(new Packet(device, pkt), Packet::Deleter());
 667         callback(device, packet);
 668 }
 669
 670 SourceCallbackData::SourceCallbackData(shared_ptr<EventSource> source) :
 671         source(source)
 672 {
 673 }
 674
 675 bool SourceCallbackData::run(int revents)
 676 {
 677         return source->callback((Glib::IOCondition) revents);
 678 }
 679
 680 shared_ptr<EventSource> EventSource::create(int fd, Glib::IOCondition events,
 681         int timeout, SourceCallbackFunction callback)
 682 {
 683         auto result = new EventSource(timeout, callback);
 684         result->type = EventSource::SOURCE_FD;
 685         result->fd = fd;
 686         result->events = events;
 687         return shared_ptr<EventSource>(result, EventSource::Deleter());
 688 }
 689
 690 shared_ptr<EventSource> EventSource::create(Glib::PollFD pollfd, int timeout,
 691         SourceCallbackFunction callback)
 692 {
 693         auto result = new EventSource(timeout, callback);
 694         result->type = EventSource::SOURCE_POLLFD;
 695         result->pollfd = pollfd;
 696         return shared_ptr<EventSource>(result, EventSource::Deleter());
 697 }
 698
 699 shared_ptr<EventSource> EventSource::create(Glib::RefPtr<Glib::IOChannel> channel,
 700         Glib::IOCondition events, int timeout, SourceCallbackFunction callback)
 701 {
 702         auto result = new EventSource(timeout, callback);
 703         result->type = EventSource::SOURCE_IOCHANNEL;
 704         result->channel = channel;
 705         result->events = events;
 706         return shared_ptr<EventSource>(result, EventSource::Deleter());
 707 }
 708
 709 EventSource::EventSource(int timeout, SourceCallbackFunction callback) :
 710         timeout(timeout), callback(callback)
 711 {
 712 }
 713
 714 EventSource::~EventSource()
 715 {
 716 }
 717
 718 Session::Session(shared_ptr<Context> context) :
 719         UserOwned(structure),
 720         context(context), saving(false)
 721 {
 722         check(sr_session_new(&structure));
 723         context->session = this;
 724 }
 725
 726 Session::Session(shared_ptr<Context> context, string filename) :
 727         UserOwned(structure),
 728         context(context), saving(false)
 729 {
 730         check(sr_session_load(filename.c_str(), &structure));
 731         context->session = this;
 732 }
 733
 734 Session::~Session()
 735 {
 736         check(sr_session_destroy(structure));
 737
 738         for (auto callback : datafeed_callbacks)
 739                 delete callback;
 740
 741         for (auto entry : source_callbacks)
 742                 delete entry.second;
 743 }
 744
 745 void Session::add_device(shared_ptr<Device> device)
 746 {
 747         check(sr_session_dev_add(structure, device->structure));
 748         devices[device->structure] = device;
 749 }
 750
 751 vector<shared_ptr<Device>> Session::get_devices()
 752 {
 753         GSList *dev_list;
 754         check(sr_session_dev_list(structure, &dev_list));
 755         vector<shared_ptr<Device>> result;
 756         for (GSList *dev = dev_list; dev; dev = dev->next)
 757         {
 758                 auto sdi = (struct sr_dev_inst *) dev->data;
 759                 result.push_back(devices[sdi]);
 760         }
 761         return result;
 762 }
 763
 764 void Session::remove_devices()
 765 {
 766         devices.clear();
 767         check(sr_session_dev_remove_all(structure));
 768 }
 769
 770 void Session::start()
 771 {
 772         check(sr_session_start(structure));
 773 }
 774
 775 void Session::run()
 776 {
 777         check(sr_session_run(structure));
 778 }
 779
 780 void Session::stop()
 781 {
 782         check(sr_session_stop(structure));
 783 }
 784
 785 void Session::begin_save(string filename)
 786 {
 787         saving = true;
 788         save_initialized = false;
 789         save_filename = filename;
 790         save_samplerate = 0;
 791 }
 792
 793 void Session::append(shared_ptr<Packet> packet)
 794 {
 795         if (!saving)
 796                 throw Error(SR_ERR);
 797
 798         switch (packet->structure->type)
 799         {
 800                 case SR_DF_META:
 801                 {
 802                         auto meta = (const struct sr_datafeed_meta *)
 803                                 packet->structure->payload;
 804
 805                         for (auto l = meta->config; l; l = l->next)
 806                         {
 807                                 auto config = (struct sr_config *) l->data;
 808                                 if (config->key == SR_CONF_SAMPLERATE)
 809                                         save_samplerate = g_variant_get_uint64(config->data);
 810                         }
 811
 812                         break;
 813                 }
 814                 case SR_DF_LOGIC:
 815                 {
 816                         if (save_samplerate == 0)
 817                         {
 818                                 GVariant *samplerate;
 819
 820                                 check(sr_config_get(packet->device->structure->driver,
 821                                         packet->device->structure, NULL, SR_CONF_SAMPLERATE,
 822                                         &samplerate));
 823
 824                                 save_samplerate = g_variant_get_uint64(samplerate);
 825
 826                                 g_variant_unref(samplerate);
 827                         }
 828
 829                         if (!save_initialized)
 830                         {
 831                                 vector<shared_ptr<Channel>> save_channels;
 832
 833                                 for (auto channel : packet->device->get_channels())
 834                                         if (channel->structure->enabled &&
 835                                                         channel->structure->type == SR_CHANNEL_LOGIC)
 836                                                 save_channels.push_back(channel);
 837
 838                                 auto channels = g_new(char *, save_channels.size());
 839
 840                                 int i = 0;
 841                                 for (auto channel : save_channels)
 842                                                 channels[i++] = channel->structure->name;
 843                                 channels[i] = NULL;
 844
 845                                 int ret = sr_session_save_init(structure, save_filename.c_str(),
 846                                                 save_samplerate, channels);
 847
 848                                 g_free(channels);
 849
 850                                 if (ret != SR_OK)
 851                                         throw Error(ret);
 852
 853                                 save_initialized = true;
 854                         }
 855
 856                         auto logic = (const struct sr_datafeed_logic *)
 857                                 packet->structure->payload;
 858
 859                         check(sr_session_append(structure, save_filename.c_str(),
 860                                 (uint8_t *) logic->data, logic->unitsize,
 861                                 logic->length / logic->unitsize));
 862                 }
 863         }
 864 }
 865
 866 void Session::append(void *data, size_t length, unsigned int unit_size)
 867 {
 868         check(sr_session_append(structure, save_filename.c_str(),
 869                 (uint8_t *) data, unit_size, length));
 870 }
 871
 872 static void datafeed_callback(const struct sr_dev_inst *sdi,
 873         const struct sr_datafeed_packet *pkt, void *cb_data)
 874 {
 875         auto callback = static_cast<DatafeedCallbackData *>(cb_data);
 876         callback->run(sdi, pkt);
 877 }
 878
 879 void Session::add_datafeed_callback(DatafeedCallbackFunction callback)
 880 {
 881         auto cb_data = new DatafeedCallbackData(this, callback);
 882         check(sr_session_datafeed_callback_add(structure, datafeed_callback, cb_data));
 883         datafeed_callbacks.push_back(cb_data);
 884 }
 885
 886 void Session::remove_datafeed_callbacks(void)
 887 {
 888         check(sr_session_datafeed_callback_remove_all(structure));
 889         for (auto callback : datafeed_callbacks)
 890                 delete callback;
 891         datafeed_callbacks.clear();
 892 }
 893
 894 static int source_callback(int fd, int revents, void *cb_data)
 895 {
 896         (void) fd;
 897         auto callback = (SourceCallbackData *) cb_data;
 898         return callback->run(revents);
 899 }
 900
 901 void Session::add_source(shared_ptr<EventSource> source)
 902 {
 903         if (source_callbacks.count(source) == 1)
 904                 throw Error(SR_ERR_ARG);
 905
 906         auto cb_data = new SourceCallbackData(source);
 907
 908         switch (source->type)
 909         {
 910                 case EventSource::SOURCE_FD:
 911                         check(sr_session_source_add(structure, source->fd, source->events,
 912                                 source->timeout, source_callback, cb_data));
 913                         break;
 914                 case EventSource::SOURCE_POLLFD:
 915                         check(sr_session_source_add_pollfd(structure,
 916                                 source->pollfd.gobj(), source->timeout, source_callback,
 917                                 cb_data));
 918                         break;
 919                 case EventSource::SOURCE_IOCHANNEL:
 920                         check(sr_session_source_add_channel(structure,
 921                                 source->channel->gobj(), source->events, source->timeout,
 922                                 source_callback, cb_data));
 923                         break;
 924         }
 925
 926         source_callbacks[source] = cb_data;
 927 }
 928
 929 void Session::remove_source(shared_ptr<EventSource> source)
 930 {
 931         if (source_callbacks.count(source) == 0)
 932                 throw Error(SR_ERR_ARG);
 933
 934         switch (source->type)
 935         {
 936                 case EventSource::SOURCE_FD:
 937                         check(sr_session_source_remove(structure, source->fd));
 938                         break;
 939                 case EventSource::SOURCE_POLLFD:
 940                         check(sr_session_source_remove_pollfd(structure,
 941                                 source->pollfd.gobj()));
 942                         break;
 943                 case EventSource::SOURCE_IOCHANNEL:
 944                         check(sr_session_source_remove_channel(structure,
 945                                 source->channel->gobj()));
 946                         break;
 947         }
 948
 949         delete source_callbacks[source];
 950
 951         source_callbacks.erase(source);
 952 }
 953
 954 shared_ptr<Trigger> Session::get_trigger()
 955 {
 956         return trigger;
 957 }
 958
 959 void Session::set_trigger(shared_ptr<Trigger> trigger)
 960 {
 961         check(sr_session_trigger_set(structure, trigger->structure));
 962         this->trigger = trigger;
 963 }
 964
 965 Packet::Packet(shared_ptr<Device> device,
 966         const struct sr_datafeed_packet *structure) :
 967         UserOwned(structure),
 968         device(device)
 969 {
 970         switch (structure->type)
 971         {
 972                 case SR_DF_HEADER:
 973                         payload = new Header(
 974                                 static_cast<const struct sr_datafeed_header *>(
 975                                         structure->payload));
 976                         break;
 977                 case SR_DF_META:
 978                         payload = new Meta(
 979                                 static_cast<const struct sr_datafeed_meta *>(
 980                                         structure->payload));
 981                         break;
 982                 case SR_DF_LOGIC:
 983                         payload = new Logic(
 984                                 static_cast<const struct sr_datafeed_logic *>(
 985                                         structure->payload));
 986                         break;
 987                 case SR_DF_ANALOG:
 988                         payload = new Analog(
 989                                 static_cast<const struct sr_datafeed_analog *>(
 990                                         structure->payload));
 991                         break;
 992                 default:
 993                         payload = nullptr;
 994                         break;
 995         }
 996 }
 997
 998 Packet::~Packet()
 999 {
1000         if (payload)
1001                 delete payload;
1002 }
1003
1004 const PacketType *Packet::get_type()
1005 {
1006         return PacketType::get(structure->type);
1007 }
1008
1009 shared_ptr<PacketPayload> Packet::get_payload()
1010 {
1011         if (payload)
1012                 return payload->get_shared_pointer(this);
1013         else
1014                 throw Error(SR_ERR_NA);
1015 }
1016
1017 PacketPayload::PacketPayload()
1018 {
1019 }
1020
1021 PacketPayload::~PacketPayload()
1022 {
1023 }
1024
1025 Header::Header(const struct sr_datafeed_header *structure) :
1026         ParentOwned(structure),
1027         PacketPayload()
1028 {
1029 }
1030
1031 Header::~Header()
1032 {
1033 }
1034
1035 shared_ptr<PacketPayload> Header::get_shared_pointer(Packet *parent)
1036 {
1037         return static_pointer_cast<PacketPayload>(
1038                 ParentOwned::get_shared_pointer(parent));
1039 }
1040
1041 int Header::get_feed_version()
1042 {
1043         return structure->feed_version;
1044 }
1045
1046 Glib::TimeVal Header::get_start_time()
1047 {
1048         return Glib::TimeVal(
1049                 structure->starttime.tv_sec,
1050                 structure->starttime.tv_usec);
1051 }
1052
1053 Meta::Meta(const struct sr_datafeed_meta *structure) :
1054         ParentOwned(structure),
1055         PacketPayload()
1056 {
1057 }
1058
1059 Meta::~Meta()
1060 {
1061 }
1062
1063 shared_ptr<PacketPayload> Meta::get_shared_pointer(Packet *parent)
1064 {
1065         return static_pointer_cast<PacketPayload>(
1066                 ParentOwned::get_shared_pointer(parent));
1067 }
1068
1069 map<const ConfigKey *, Glib::VariantBase> Meta::get_config()
1070 {
1071         map<const ConfigKey *, Glib::VariantBase> result;
1072         for (auto l = structure->config; l; l = l->next)
1073         {
1074                 auto config = (struct sr_config *) l->data;
1075                 result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data);
1076         }
1077         return result;
1078 }
1079
1080 Logic::Logic(const struct sr_datafeed_logic *structure) :
1081         ParentOwned(structure),
1082         PacketPayload()
1083 {
1084 }
1085
1086 Logic::~Logic()
1087 {
1088 }
1089
1090 shared_ptr<PacketPayload> Logic::get_shared_pointer(Packet *parent)
1091 {
1092         return static_pointer_cast<PacketPayload>(
1093                 ParentOwned::get_shared_pointer(parent));
1094 }
1095
1096 void *Logic::get_data_pointer()
1097 {
1098         return structure->data;
1099 }
1100
1101 size_t Logic::get_data_length()
1102 {
1103         return structure->length;
1104 }
1105
1106 unsigned int Logic::get_unit_size()
1107 {
1108         return structure->unitsize;
1109 }
1110
1111 Analog::Analog(const struct sr_datafeed_analog *structure) :
1112         ParentOwned(structure),
1113         PacketPayload()
1114 {
1115 }
1116
1117 Analog::~Analog()
1118 {
1119 }
1120
1121 shared_ptr<PacketPayload> Analog::get_shared_pointer(Packet *parent)
1122 {
1123         return static_pointer_cast<PacketPayload>(
1124                 ParentOwned::get_shared_pointer(parent));
1125 }
1126
1127 float *Analog::get_data_pointer()
1128 {
1129         return structure->data;
1130 }
1131
1132 unsigned int Analog::get_num_samples()
1133 {
1134         return structure->num_samples;
1135 }
1136
1137 vector<shared_ptr<Channel>> Analog::get_channels()
1138 {
1139         vector<shared_ptr<Channel>> result;
1140         for (auto l = structure->channels; l; l = l->next)
1141                 result.push_back(parent->device->get_channel(
1142                         (struct sr_channel *)l->data));
1143         return result;
1144 }
1145
1146 const Quantity *Analog::get_mq()
1147 {
1148         return Quantity::get(structure->mq);
1149 }
1150
1151 const Unit *Analog::get_unit()
1152 {
1153         return Unit::get(structure->unit);
1154 }
1155
1156 vector<const QuantityFlag *> Analog::get_mq_flags()
1157 {
1158         return QuantityFlag::flags_from_mask(structure->mqflags);
1159 }
1160
1161 InputFormat::InputFormat(const struct sr_input_module *structure) :
1162         ParentOwned(structure)
1163 {
1164 }
1165
1166 InputFormat::~InputFormat()
1167 {
1168 }
1169
1170 string InputFormat::get_name()
1171 {
1172         return valid_string(sr_input_id_get(structure));
1173 }
1174
1175 string InputFormat::get_description()
1176 {
1177         return valid_string(sr_input_description_get(structure));
1178 }
1179
1180 map<string, shared_ptr<Option>> InputFormat::get_options()
1181 {
1182         const struct sr_option **options = sr_input_options_get(structure);
1183         auto option_array = shared_ptr<const struct sr_option *>(
1184                 options, sr_input_options_free);
1185         map<string, shared_ptr<Option>> result;
1186         for (int i = 0; options[i]; i++)
1187                 result[options[i]->id] = shared_ptr<Option>(
1188                         new Option(options[i], option_array), Option::Deleter());
1189         return result;
1190 }
1191
1192 shared_ptr<Input> InputFormat::create_input(
1193         map<string, Glib::VariantBase> options)
1194 {
1195         auto input = sr_input_new(structure, map_to_hash_variant(options));
1196         if (!input)
1197                 throw Error(SR_ERR_ARG);
1198         return shared_ptr<Input>(
1199                 new Input(parent->shared_from_this(), input), Input::Deleter());
1200 }
1201
1202 Input::Input(shared_ptr<Context> context, const struct sr_input *structure) :
1203         UserOwned(structure),
1204         context(context),
1205         device(nullptr)
1206 {
1207 }
1208
1209 shared_ptr<InputDevice> Input::get_device()
1210 {
1211         if (!device)
1212         {
1213                 auto sdi = sr_input_dev_inst_get(structure);
1214                 if (!sdi)
1215                         throw Error(SR_ERR_NA);
1216                 device = new InputDevice(shared_from_this(), sdi);
1217         }
1218
1219         return device->get_shared_pointer(shared_from_this());
1220 }
1221
1222 void Input::send(string data)
1223 {
1224         auto gstr = g_string_new(data.c_str());
1225         auto ret = sr_input_send(structure, gstr);
1226         g_string_free(gstr, false);
1227         check(ret);
1228 }
1229
1230 Input::~Input()
1231 {
1232         if (device)
1233                 delete device;
1234         check(sr_input_free(structure));
1235 }
1236
1237 InputDevice::InputDevice(shared_ptr<Input> input,
1238                 struct sr_dev_inst *structure) :
1239         ParentOwned(structure),
1240         Device(structure),
1241         input(input)
1242 {
1243 }
1244
1245 InputDevice::~InputDevice()
1246 {
1247 }
1248
1249 shared_ptr<Device> InputDevice::get_shared_from_this()
1250 {
1251         return static_pointer_cast<Device>(shared_from_this());
1252 }
1253
1254 Option::Option(const struct sr_option *structure,
1255                 shared_ptr<const struct sr_option *> structure_array) :
1256         UserOwned(structure),
1257         structure_array(structure_array)
1258 {
1259 }
1260
1261 Option::~Option()
1262 {
1263 }
1264
1265 string Option::get_id()
1266 {
1267         return valid_string(structure->id);
1268 }
1269
1270 string Option::get_name()
1271 {
1272         return valid_string(structure->name);
1273 }
1274
1275 string Option::get_description()
1276 {
1277         return valid_string(structure->desc);
1278 }
1279
1280 Glib::VariantBase Option::get_default_value()
1281 {
1282         return Glib::VariantBase(structure->def, true);
1283 }
1284
1285 vector<Glib::VariantBase> Option::get_values()
1286 {
1287         vector<Glib::VariantBase> result;
1288         for (auto l = structure->values; l; l = l->next)
1289                 result.push_back(Glib::VariantBase((GVariant *) l->data, true));
1290         return result;
1291 }
1292
1293 OutputFormat::OutputFormat(const struct sr_output_module *structure) :
1294         ParentOwned(structure)
1295 {
1296 }
1297
1298 OutputFormat::~OutputFormat()
1299 {
1300 }
1301
1302 string OutputFormat::get_name()
1303 {
1304         return valid_string(sr_output_id_get(structure));
1305 }
1306
1307 string OutputFormat::get_description()
1308 {
1309         return valid_string(sr_output_description_get(structure));
1310 }
1311
1312 map<string, shared_ptr<Option>> OutputFormat::get_options()
1313 {
1314         const struct sr_option **options = sr_output_options_get(structure);
1315         auto option_array = shared_ptr<const struct sr_option *>(
1316                 options, sr_output_options_free);
1317         map<string, shared_ptr<Option>> result;
1318         for (int i = 0; options[i]; i++)
1319                 result[options[i]->id] = shared_ptr<Option>(
1320                         new Option(options[i], option_array), Option::Deleter());
1321         return result;
1322 }
1323
1324 shared_ptr<Output> OutputFormat::create_output(
1325         shared_ptr<Device> device, map<string, Glib::VariantBase> options)
1326 {
1327         return shared_ptr<Output>(
1328                 new Output(shared_from_this(), device, options),
1329                 Output::Deleter());
1330 }
1331
1332 Output::Output(shared_ptr<OutputFormat> format,
1333                 shared_ptr<Device> device, map<string, Glib::VariantBase> options) :
1334         UserOwned(sr_output_new(format->structure,
1335                 map_to_hash_variant(options), device->structure)),
1336         format(format), device(device), options(options)
1337 {
1338 }
1339
1340 Output::~Output()
1341 {
1342         check(sr_output_free(structure));
1343 }
1344
1345 string Output::receive(shared_ptr<Packet> packet)
1346 {
1347         GString *out;
1348         check(sr_output_send(structure, packet->structure, &out));
1349         if (out)
1350         {
1351                 auto result = string(out->str, out->str + out->len);
1352                 g_string_free(out, true);
1353                 return result;
1354         }
1355         else
1356         {
1357                 return string();
1358         }
1359 }
1360
1361 #include "enums.cpp"
1362
1363 }