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(sr_dev_inst_driver_get(structure), structure, NULL),
 417         _structure(structure)
 418 {
 419         for (GSList *entry = sr_dev_inst_channels_get(structure); 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 = sr_dev_inst_channel_groups_get(structure); 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::vendor()
 441 {
 442         return valid_string(sr_dev_inst_vendor_get(_structure));
 443 }
 444
 445 string Device::model()
 446 {
 447         return valid_string(sr_dev_inst_model_get(_structure));
 448 }
 449
 450 string Device::version()
 451 {
 452         return valid_string(sr_dev_inst_version_get(_structure));
 453 }
 454
 455 string Device::serial_number()
 456 {
 457         return valid_string(sr_dev_inst_sernum_get(_structure));
 458 }
 459
 460 string Device::connection_id()
 461 {
 462         return valid_string(sr_dev_inst_connid_get(_structure));
 463 }
 464
 465 vector<shared_ptr<Channel>> Device::channels()
 466 {
 467         vector<shared_ptr<Channel>> result;
 468         for (auto channel = sr_dev_inst_channels_get(_structure); channel; channel = channel->next)
 469                 result.push_back(
 470                         _channels[(struct sr_channel *) channel->data]->get_shared_pointer(
 471                                 get_shared_from_this()));
 472         return result;
 473 }
 474
 475 shared_ptr<Channel> Device::get_channel(struct sr_channel *ptr)
 476 {
 477         return _channels[ptr]->get_shared_pointer(get_shared_from_this());
 478 }
 479
 480 map<string, shared_ptr<ChannelGroup>>
 481 Device::channel_groups()
 482 {
 483         map<string, shared_ptr<ChannelGroup>> result;
 484         for (auto entry: _channel_groups)
 485         {
 486                 auto name = entry.first;
 487                 auto channel_group = entry.second;
 488                 result[name] = channel_group->get_shared_pointer(get_shared_from_this());
 489         }
 490         return result;
 491 }
 492
 493 void Device::open()
 494 {
 495         check(sr_dev_open(_structure));
 496 }
 497
 498 void Device::close()
 499 {
 500         check(sr_dev_close(_structure));
 501 }
 502
 503 HardwareDevice::HardwareDevice(shared_ptr<Driver> driver,
 504                 struct sr_dev_inst *structure) :
 505         UserOwned(structure),
 506         Device(structure),
 507         _driver(driver)
 508 {
 509 }
 510
 511 HardwareDevice::~HardwareDevice()
 512 {
 513 }
 514
 515 shared_ptr<Device> HardwareDevice::get_shared_from_this()
 516 {
 517         return static_pointer_cast<Device>(shared_from_this());
 518 }
 519
 520 shared_ptr<Driver> HardwareDevice::driver()
 521 {
 522         return _driver;
 523 }
 524
 525 Channel::Channel(struct sr_channel *structure) :
 526         ParentOwned(structure),
 527         _type(ChannelType::get(_structure->type))
 528 {
 529 }
 530
 531 Channel::~Channel()
 532 {
 533 }
 534
 535 string Channel::name()
 536 {
 537         return valid_string(_structure->name);
 538 }
 539
 540 void Channel::set_name(string name)
 541 {
 542         check(sr_dev_channel_name_set(_parent->_structure,
 543                 _structure->index, name.c_str()));
 544 }
 545
 546 const ChannelType *Channel::type()
 547 {
 548         return ChannelType::get(_structure->type);
 549 }
 550
 551 bool Channel::enabled()
 552 {
 553         return _structure->enabled;
 554 }
 555
 556 void Channel::set_enabled(bool value)
 557 {
 558         check(sr_dev_channel_enable(_parent->_structure, _structure->index, value));
 559 }
 560
 561 unsigned int Channel::index()
 562 {
 563         return _structure->index;
 564 }
 565
 566 ChannelGroup::ChannelGroup(Device *device,
 567                 struct sr_channel_group *structure) :
 568         ParentOwned(structure),
 569         Configurable(sr_dev_inst_driver_get(device->_structure), device->_structure, structure)
 570 {
 571         for (GSList *entry = structure->channels; entry; entry = entry->next)
 572                 _channels.push_back(device->_channels[(struct sr_channel *)entry->data]);
 573 }
 574
 575 ChannelGroup::~ChannelGroup()
 576 {
 577 }
 578
 579 string ChannelGroup::name()
 580 {
 581         return valid_string(_structure->name);
 582 }
 583
 584 vector<shared_ptr<Channel>> ChannelGroup::channels()
 585 {
 586         vector<shared_ptr<Channel>> result;
 587         for (auto channel : _channels)
 588                 result.push_back(channel->get_shared_pointer(_parent));
 589         return result;
 590 }
 591
 592 Trigger::Trigger(shared_ptr<Context> context, string name) :
 593         UserOwned(sr_trigger_new(name.c_str())),
 594         _context(context)
 595 {
 596         for (auto stage = _structure->stages; stage; stage = stage->next)
 597                 _stages.push_back(
 598                         new TriggerStage((struct sr_trigger_stage *) stage->data));
 599 }
 600
 601 Trigger::~Trigger()
 602 {
 603         for (auto stage: _stages)
 604                 delete stage;
 605
 606         sr_trigger_free(_structure);
 607 }
 608
 609 string Trigger::name()
 610 {
 611         return _structure->name;
 612 }
 613
 614 vector<shared_ptr<TriggerStage>> Trigger::stages()
 615 {
 616         vector<shared_ptr<TriggerStage>> result;
 617         for (auto stage : _stages)
 618                 result.push_back(stage->get_shared_pointer(this));
 619         return result;
 620 }
 621
 622 shared_ptr<TriggerStage> Trigger::add_stage()
 623 {
 624         auto stage = new TriggerStage(sr_trigger_stage_add(_structure));
 625         _stages.push_back(stage);
 626         return stage->get_shared_pointer(this);
 627 }
 628
 629 TriggerStage::TriggerStage(struct sr_trigger_stage *structure) :
 630         ParentOwned(structure)
 631 {
 632 }
 633
 634 TriggerStage::~TriggerStage()
 635 {
 636         for (auto match : _matches)
 637                 delete match;
 638 }
 639
 640 int TriggerStage::number()
 641 {
 642         return _structure->stage;
 643 }
 644
 645 vector<shared_ptr<TriggerMatch>> TriggerStage::matches()
 646 {
 647         vector<shared_ptr<TriggerMatch>> result;
 648         for (auto match : _matches)
 649                 result.push_back(match->get_shared_pointer(this));
 650         return result;
 651 }
 652
 653 void TriggerStage::add_match(shared_ptr<Channel> channel,
 654         const TriggerMatchType *type, float value)
 655 {
 656         check(sr_trigger_match_add(_structure,
 657                 channel->_structure, type->id(), value));
 658         _matches.push_back(new TriggerMatch(
 659                 (struct sr_trigger_match *) g_slist_last(
 660                         _structure->matches)->data, channel));
 661 }
 662
 663 void TriggerStage::add_match(shared_ptr<Channel> channel,
 664         const TriggerMatchType *type)
 665 {
 666         add_match(channel, type, NAN);
 667 }
 668
 669 TriggerMatch::TriggerMatch(struct sr_trigger_match *structure,
 670                 shared_ptr<Channel> channel) :
 671         ParentOwned(structure),
 672         _channel(channel)
 673 {
 674 }
 675
 676 TriggerMatch::~TriggerMatch()
 677 {
 678 }
 679
 680 shared_ptr<Channel> TriggerMatch::channel()
 681 {
 682         return _channel;
 683 }
 684
 685 const TriggerMatchType *TriggerMatch::type()
 686 {
 687         return TriggerMatchType::get(_structure->match);
 688 }
 689
 690 float TriggerMatch::value()
 691 {
 692         return _structure->value;
 693 }
 694
 695 DatafeedCallbackData::DatafeedCallbackData(Session *session,
 696                 DatafeedCallbackFunction callback) :
 697         _callback(callback),
 698         _session(session)
 699 {
 700 }
 701
 702 void DatafeedCallbackData::run(const struct sr_dev_inst *sdi,
 703         const struct sr_datafeed_packet *pkt)
 704 {
 705         auto device = _session->get_device(sdi);
 706         auto packet = shared_ptr<Packet>(new Packet(device, pkt), Packet::Deleter());
 707         _callback(device, packet);
 708 }
 709
 710 SourceCallbackData::SourceCallbackData(shared_ptr<EventSource> source) :
 711         _source(source)
 712 {
 713 }
 714
 715 bool SourceCallbackData::run(int revents)
 716 {
 717         return _source->_callback((Glib::IOCondition) revents);
 718 }
 719
 720 shared_ptr<EventSource> EventSource::create(int fd, Glib::IOCondition events,
 721         int timeout, SourceCallbackFunction callback)
 722 {
 723         auto result = new EventSource(timeout, callback);
 724         result->_type = EventSource::SOURCE_FD;
 725         result->_fd = fd;
 726         result->_events = events;
 727         return shared_ptr<EventSource>(result, EventSource::Deleter());
 728 }
 729
 730 shared_ptr<EventSource> EventSource::create(Glib::PollFD pollfd, int timeout,
 731         SourceCallbackFunction callback)
 732 {
 733         auto result = new EventSource(timeout, callback);
 734         result->_type = EventSource::SOURCE_POLLFD;
 735         result->_pollfd = pollfd;
 736         return shared_ptr<EventSource>(result, EventSource::Deleter());
 737 }
 738
 739 shared_ptr<EventSource> EventSource::create(Glib::RefPtr<Glib::IOChannel> channel,
 740         Glib::IOCondition events, int timeout, SourceCallbackFunction callback)
 741 {
 742         auto result = new EventSource(timeout, callback);
 743         result->_type = EventSource::SOURCE_IOCHANNEL;
 744         result->_channel = channel;
 745         result->_events = events;
 746         return shared_ptr<EventSource>(result, EventSource::Deleter());
 747 }
 748
 749 EventSource::EventSource(int timeout, SourceCallbackFunction callback) :
 750         _timeout(timeout),
 751         _callback(callback)
 752 {
 753 }
 754
 755 EventSource::~EventSource()
 756 {
 757 }
 758
 759 SessionDevice::SessionDevice(struct sr_dev_inst *structure) :
 760         ParentOwned(structure),
 761         Device(structure)
 762 {
 763 }
 764
 765 SessionDevice::~SessionDevice()
 766 {
 767 }
 768
 769 shared_ptr<Device> SessionDevice::get_shared_from_this()
 770 {
 771         return static_pointer_cast<Device>(shared_from_this());
 772 }
 773
 774 Session::Session(shared_ptr<Context> context) :
 775         UserOwned(_structure),
 776         _context(context),
 777         _saving(false)
 778 {
 779         check(sr_session_new(&_structure));
 780         _context->_session = this;
 781 }
 782
 783 Session::Session(shared_ptr<Context> context, string filename) :
 784         UserOwned(_structure),
 785         _context(context),
 786         _filename(filename),
 787         _saving(false)
 788 {
 789         check(sr_session_load(filename.c_str(), &_structure));
 790         GSList *dev_list;
 791         check(sr_session_dev_list(_structure, &dev_list));
 792         for (GSList *dev = dev_list; dev; dev = dev->next)
 793         {
 794                 auto sdi = (struct sr_dev_inst *) dev->data;
 795                 _owned_devices[sdi] = new SessionDevice(sdi);
 796         }
 797         _context->_session = this;
 798 }
 799
 800 Session::~Session()
 801 {
 802         check(sr_session_destroy(_structure));
 803
 804         for (auto callback : _datafeed_callbacks)
 805                 delete callback;
 806
 807         for (auto entry : _source_callbacks)
 808                 delete entry.second;
 809
 810         for (auto entry : _owned_devices)
 811                 delete entry.second;
 812 }
 813
 814 shared_ptr<Device> Session::get_device(const struct sr_dev_inst *sdi)
 815 {
 816         if (_owned_devices.count(sdi))
 817                 return static_pointer_cast<Device>(
 818                         _owned_devices[sdi]->get_shared_pointer(this));
 819         else if (_other_devices.count(sdi))
 820                 return _other_devices[sdi];
 821         else
 822                 throw Error(SR_ERR_BUG);
 823 }
 824
 825 void Session::add_device(shared_ptr<Device> device)
 826 {
 827         check(sr_session_dev_add(_structure, device->_structure));
 828         _other_devices[device->_structure] = device;
 829 }
 830
 831 vector<shared_ptr<Device>> Session::devices()
 832 {
 833         GSList *dev_list;
 834         check(sr_session_dev_list(_structure, &dev_list));
 835         vector<shared_ptr<Device>> result;
 836         for (GSList *dev = dev_list; dev; dev = dev->next)
 837         {
 838                 auto sdi = (struct sr_dev_inst *) dev->data;
 839                 result.push_back(get_device(sdi));
 840         }
 841         return result;
 842 }
 843
 844 void Session::remove_devices()
 845 {
 846         _other_devices.clear();
 847         check(sr_session_dev_remove_all(_structure));
 848 }
 849
 850 void Session::start()
 851 {
 852         check(sr_session_start(_structure));
 853 }
 854
 855 void Session::run()
 856 {
 857         check(sr_session_run(_structure));
 858 }
 859
 860 void Session::stop()
 861 {
 862         check(sr_session_stop(_structure));
 863 }
 864
 865 void Session::begin_save(string filename)
 866 {
 867         _saving = true;
 868         _save_initialized = false;
 869         _save_filename = filename;
 870         _save_samplerate = 0;
 871 }
 872
 873 void Session::append(shared_ptr<Packet> packet)
 874 {
 875         if (!_saving)
 876                 throw Error(SR_ERR);
 877
 878         switch (packet->_structure->type)
 879         {
 880                 case SR_DF_META:
 881                 {
 882                         auto meta = (const struct sr_datafeed_meta *)
 883                                 packet->_structure->payload;
 884
 885                         for (auto l = meta->config; l; l = l->next)
 886                         {
 887                                 auto config = (struct sr_config *) l->data;
 888                                 if (config->key == SR_CONF_SAMPLERATE)
 889                                         _save_samplerate = g_variant_get_uint64(config->data);
 890                         }
 891
 892                         break;
 893                 }
 894                 case SR_DF_LOGIC:
 895                 {
 896                         if (_save_samplerate == 0)
 897                         {
 898                                 GVariant *samplerate;
 899
 900                                 check(sr_config_get(sr_dev_inst_driver_get(packet->_device->_structure),
 901                                         packet->_device->_structure, NULL, SR_CONF_SAMPLERATE,
 902                                         &samplerate));
 903
 904                                 _save_samplerate = g_variant_get_uint64(samplerate);
 905
 906                                 g_variant_unref(samplerate);
 907                         }
 908
 909                         if (!_save_initialized)
 910                         {
 911                                 vector<shared_ptr<Channel>> save_channels;
 912
 913                                 for (auto channel : packet->_device->channels())
 914                                         if (channel->_structure->enabled &&
 915                                                         channel->_structure->type == SR_CHANNEL_LOGIC)
 916                                                 save_channels.push_back(channel);
 917
 918                                 auto channels = g_new(char *, save_channels.size());
 919
 920                                 int i = 0;
 921                                 for (auto channel : save_channels)
 922                                                 channels[i++] = channel->_structure->name;
 923                                 channels[i] = NULL;
 924
 925                                 int ret = sr_session_save_init(_structure, _save_filename.c_str(),
 926                                                 _save_samplerate, channels);
 927
 928                                 g_free(channels);
 929
 930                                 if (ret != SR_OK)
 931                                         throw Error(ret);
 932
 933                                 _save_initialized = true;
 934                         }
 935
 936                         auto logic = (const struct sr_datafeed_logic *)
 937                                 packet->_structure->payload;
 938
 939                         check(sr_session_append(_structure, _save_filename.c_str(),
 940                                 (uint8_t *) logic->data, logic->unitsize,
 941                                 logic->length / logic->unitsize));
 942                 }
 943         }
 944 }
 945
 946 void Session::append(void *data, size_t length, unsigned int unit_size)
 947 {
 948         check(sr_session_append(_structure, _save_filename.c_str(),
 949                 (uint8_t *) data, unit_size, length));
 950 }
 951
 952 static void datafeed_callback(const struct sr_dev_inst *sdi,
 953         const struct sr_datafeed_packet *pkt, void *cb_data)
 954 {
 955         auto callback = static_cast<DatafeedCallbackData *>(cb_data);
 956         callback->run(sdi, pkt);
 957 }
 958
 959 void Session::add_datafeed_callback(DatafeedCallbackFunction callback)
 960 {
 961         auto cb_data = new DatafeedCallbackData(this, callback);
 962         check(sr_session_datafeed_callback_add(_structure,
 963                 datafeed_callback, cb_data));
 964         _datafeed_callbacks.push_back(cb_data);
 965 }
 966
 967 void Session::remove_datafeed_callbacks(void)
 968 {
 969         check(sr_session_datafeed_callback_remove_all(_structure));
 970         for (auto callback : _datafeed_callbacks)
 971                 delete callback;
 972         _datafeed_callbacks.clear();
 973 }
 974
 975 static int source_callback(int fd, int revents, void *cb_data)
 976 {
 977         (void) fd;
 978         auto callback = (SourceCallbackData *) cb_data;
 979         return callback->run(revents);
 980 }
 981
 982 void Session::add_source(shared_ptr<EventSource> source)
 983 {
 984         if (_source_callbacks.count(source) == 1)
 985                 throw Error(SR_ERR_ARG);
 986
 987         auto cb_data = new SourceCallbackData(source);
 988
 989         switch (source->_type)
 990         {
 991                 case EventSource::SOURCE_FD:
 992                         check(sr_session_source_add(_structure, source->_fd, source->_events,
 993                                 source->_timeout, source_callback, cb_data));
 994                         break;
 995                 case EventSource::SOURCE_POLLFD:
 996                         check(sr_session_source_add_pollfd(_structure,
 997                                 source->_pollfd.gobj(), source->_timeout, source_callback,
 998                                 cb_data));
 999                         break;
1000                 case EventSource::SOURCE_IOCHANNEL:
1001                         check(sr_session_source_add_channel(_structure,
1002                                 source->_channel->gobj(), source->_events, source->_timeout,
1003                                 source_callback, cb_data));
1004                         break;
1005         }
1006
1007         _source_callbacks[source] = cb_data;
1008 }
1009
1010 void Session::remove_source(shared_ptr<EventSource> source)
1011 {
1012         if (_source_callbacks.count(source) == 0)
1013                 throw Error(SR_ERR_ARG);
1014
1015         switch (source->_type)
1016         {
1017                 case EventSource::SOURCE_FD:
1018                         check(sr_session_source_remove(_structure, source->_fd));
1019                         break;
1020                 case EventSource::SOURCE_POLLFD:
1021                         check(sr_session_source_remove_pollfd(_structure,
1022                                 source->_pollfd.gobj()));
1023                         break;
1024                 case EventSource::SOURCE_IOCHANNEL:
1025                         check(sr_session_source_remove_channel(_structure,
1026                                 source->_channel->gobj()));
1027                         break;
1028         }
1029
1030         delete _source_callbacks[source];
1031
1032         _source_callbacks.erase(source);
1033 }
1034
1035 shared_ptr<Trigger> Session::trigger()
1036 {
1037         return _trigger;
1038 }
1039
1040 void Session::set_trigger(shared_ptr<Trigger> trigger)
1041 {
1042         check(sr_session_trigger_set(_structure, trigger->_structure));
1043         _trigger = trigger;
1044 }
1045
1046 string Session::filename()
1047 {
1048         return _filename;
1049 }
1050
1051 Packet::Packet(shared_ptr<Device> device,
1052         const struct sr_datafeed_packet *structure) :
1053         UserOwned(structure),
1054         _device(device)
1055 {
1056         switch (structure->type)
1057         {
1058                 case SR_DF_HEADER:
1059                         _payload = new Header(
1060                                 static_cast<const struct sr_datafeed_header *>(
1061                                         structure->payload));
1062                         break;
1063                 case SR_DF_META:
1064                         _payload = new Meta(
1065                                 static_cast<const struct sr_datafeed_meta *>(
1066                                         structure->payload));
1067                         break;
1068                 case SR_DF_LOGIC:
1069                         _payload = new Logic(
1070                                 static_cast<const struct sr_datafeed_logic *>(
1071                                         structure->payload));
1072                         break;
1073                 case SR_DF_ANALOG:
1074                         _payload = new Analog(
1075                                 static_cast<const struct sr_datafeed_analog *>(
1076                                         structure->payload));
1077                         break;
1078                 default:
1079                         _payload = nullptr;
1080                         break;
1081         }
1082 }
1083
1084 Packet::~Packet()
1085 {
1086         if (_payload)
1087                 delete _payload;
1088 }
1089
1090 const PacketType *Packet::type()
1091 {
1092         return PacketType::get(_structure->type);
1093 }
1094
1095 shared_ptr<PacketPayload> Packet::payload()
1096 {
1097         if (_payload)
1098                 return _payload->get_shared_pointer(this);
1099         else
1100                 throw Error(SR_ERR_NA);
1101 }
1102
1103 PacketPayload::PacketPayload()
1104 {
1105 }
1106
1107 PacketPayload::~PacketPayload()
1108 {
1109 }
1110
1111 Header::Header(const struct sr_datafeed_header *structure) :
1112         ParentOwned(structure),
1113         PacketPayload()
1114 {
1115 }
1116
1117 Header::~Header()
1118 {
1119 }
1120
1121 shared_ptr<PacketPayload> Header::get_shared_pointer(Packet *_parent)
1122 {
1123         return static_pointer_cast<PacketPayload>(
1124                 ParentOwned::get_shared_pointer(_parent));
1125 }
1126
1127 int Header::feed_version()
1128 {
1129         return _structure->feed_version;
1130 }
1131
1132 Glib::TimeVal Header::start_time()
1133 {
1134         return Glib::TimeVal(
1135                 _structure->starttime.tv_sec,
1136                 _structure->starttime.tv_usec);
1137 }
1138
1139 Meta::Meta(const struct sr_datafeed_meta *structure) :
1140         ParentOwned(structure),
1141         PacketPayload()
1142 {
1143 }
1144
1145 Meta::~Meta()
1146 {
1147 }
1148
1149 shared_ptr<PacketPayload> Meta::get_shared_pointer(Packet *_parent)
1150 {
1151         return static_pointer_cast<PacketPayload>(
1152                 ParentOwned::get_shared_pointer(_parent));
1153 }
1154
1155 map<const ConfigKey *, Glib::VariantBase> Meta::config()
1156 {
1157         map<const ConfigKey *, Glib::VariantBase> result;
1158         for (auto l = _structure->config; l; l = l->next)
1159         {
1160                 auto config = (struct sr_config *) l->data;
1161                 result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data);
1162         }
1163         return result;
1164 }
1165
1166 Logic::Logic(const struct sr_datafeed_logic *structure) :
1167         ParentOwned(structure),
1168         PacketPayload()
1169 {
1170 }
1171
1172 Logic::~Logic()
1173 {
1174 }
1175
1176 shared_ptr<PacketPayload> Logic::get_shared_pointer(Packet *_parent)
1177 {
1178         return static_pointer_cast<PacketPayload>(
1179                 ParentOwned::get_shared_pointer(_parent));
1180 }
1181
1182 void *Logic::data_pointer()
1183 {
1184         return _structure->data;
1185 }
1186
1187 size_t Logic::data_length()
1188 {
1189         return _structure->length;
1190 }
1191
1192 unsigned int Logic::unit_size()
1193 {
1194         return _structure->unitsize;
1195 }
1196
1197 Analog::Analog(const struct sr_datafeed_analog *structure) :
1198         ParentOwned(structure),
1199         PacketPayload()
1200 {
1201 }
1202
1203 Analog::~Analog()
1204 {
1205 }
1206
1207 shared_ptr<PacketPayload> Analog::get_shared_pointer(Packet *_parent)
1208 {
1209         return static_pointer_cast<PacketPayload>(
1210                 ParentOwned::get_shared_pointer(_parent));
1211 }
1212
1213 float *Analog::data_pointer()
1214 {
1215         return _structure->data;
1216 }
1217
1218 unsigned int Analog::num_samples()
1219 {
1220         return _structure->num_samples;
1221 }
1222
1223 vector<shared_ptr<Channel>> Analog::channels()
1224 {
1225         vector<shared_ptr<Channel>> result;
1226         for (auto l = _structure->channels; l; l = l->next)
1227                 result.push_back(_parent->_device->get_channel(
1228                         (struct sr_channel *)l->data));
1229         return result;
1230 }
1231
1232 const Quantity *Analog::mq()
1233 {
1234         return Quantity::get(_structure->mq);
1235 }
1236
1237 const Unit *Analog::unit()
1238 {
1239         return Unit::get(_structure->unit);
1240 }
1241
1242 vector<const QuantityFlag *> Analog::mq_flags()
1243 {
1244         return QuantityFlag::flags_from_mask(_structure->mqflags);
1245 }
1246
1247 InputFormat::InputFormat(const struct sr_input_module *structure) :
1248         ParentOwned(structure)
1249 {
1250 }
1251
1252 InputFormat::~InputFormat()
1253 {
1254 }
1255
1256 string InputFormat::name()
1257 {
1258         return valid_string(sr_input_id_get(_structure));
1259 }
1260
1261 string InputFormat::description()
1262 {
1263         return valid_string(sr_input_description_get(_structure));
1264 }
1265
1266 map<string, shared_ptr<Option>> InputFormat::options()
1267 {
1268         const struct sr_option **options = sr_input_options_get(_structure);
1269         auto option_array = shared_ptr<const struct sr_option *>(
1270                 options, sr_input_options_free);
1271         map<string, shared_ptr<Option>> result;
1272         for (int i = 0; options[i]; i++)
1273                 result[options[i]->id] = shared_ptr<Option>(
1274                         new Option(options[i], option_array), Option::Deleter());
1275         return result;
1276 }
1277
1278 shared_ptr<Input> InputFormat::create_input(
1279         map<string, Glib::VariantBase> options)
1280 {
1281         auto input = sr_input_new(_structure, map_to_hash_variant(options));
1282         if (!input)
1283                 throw Error(SR_ERR_ARG);
1284         return shared_ptr<Input>(
1285                 new Input(_parent->shared_from_this(), input), Input::Deleter());
1286 }
1287
1288 Input::Input(shared_ptr<Context> context, const struct sr_input *structure) :
1289         UserOwned(structure),
1290         _context(context),
1291         _device(nullptr)
1292 {
1293 }
1294
1295 shared_ptr<InputDevice> Input::device()
1296 {
1297         if (!_device)
1298         {
1299                 auto sdi = sr_input_dev_inst_get(_structure);
1300                 if (!sdi)
1301                         throw Error(SR_ERR_NA);
1302                 _device = new InputDevice(shared_from_this(), sdi);
1303         }
1304
1305         return _device->get_shared_pointer(shared_from_this());
1306 }
1307
1308 void Input::send(string data)
1309 {
1310         auto gstr = g_string_new(data.c_str());
1311         auto ret = sr_input_send(_structure, gstr);
1312         g_string_free(gstr, false);
1313         check(ret);
1314 }
1315
1316 void Input::end()
1317 {
1318         check(sr_input_end(_structure));
1319 }
1320
1321 Input::~Input()
1322 {
1323         if (_device)
1324                 delete _device;
1325         sr_input_free(_structure);
1326 }
1327
1328 InputDevice::InputDevice(shared_ptr<Input> input,
1329                 struct sr_dev_inst *structure) :
1330         ParentOwned(structure),
1331         Device(structure),
1332         _input(input)
1333 {
1334 }
1335
1336 InputDevice::~InputDevice()
1337 {
1338 }
1339
1340 shared_ptr<Device> InputDevice::get_shared_from_this()
1341 {
1342         return static_pointer_cast<Device>(shared_from_this());
1343 }
1344
1345 Option::Option(const struct sr_option *structure,
1346                 shared_ptr<const struct sr_option *> structure_array) :
1347         UserOwned(structure),
1348         _structure_array(structure_array)
1349 {
1350 }
1351
1352 Option::~Option()
1353 {
1354 }
1355
1356 string Option::id()
1357 {
1358         return valid_string(_structure->id);
1359 }
1360
1361 string Option::name()
1362 {
1363         return valid_string(_structure->name);
1364 }
1365
1366 string Option::description()
1367 {
1368         return valid_string(_structure->desc);
1369 }
1370
1371 Glib::VariantBase Option::default_value()
1372 {
1373         return Glib::VariantBase(_structure->def, true);
1374 }
1375
1376 vector<Glib::VariantBase> Option::values()
1377 {
1378         vector<Glib::VariantBase> result;
1379         for (auto l = _structure->values; l; l = l->next)
1380                 result.push_back(Glib::VariantBase((GVariant *) l->data, true));
1381         return result;
1382 }
1383
1384 OutputFormat::OutputFormat(const struct sr_output_module *structure) :
1385         ParentOwned(structure)
1386 {
1387 }
1388
1389 OutputFormat::~OutputFormat()
1390 {
1391 }
1392
1393 string OutputFormat::name()
1394 {
1395         return valid_string(sr_output_id_get(_structure));
1396 }
1397
1398 string OutputFormat::description()
1399 {
1400         return valid_string(sr_output_description_get(_structure));
1401 }
1402
1403 map<string, shared_ptr<Option>> OutputFormat::options()
1404 {
1405         const struct sr_option **options = sr_output_options_get(_structure);
1406         auto option_array = shared_ptr<const struct sr_option *>(
1407                 options, sr_output_options_free);
1408         map<string, shared_ptr<Option>> result;
1409         for (int i = 0; options[i]; i++)
1410                 result[options[i]->id] = shared_ptr<Option>(
1411                         new Option(options[i], option_array), Option::Deleter());
1412         return result;
1413 }
1414
1415 shared_ptr<Output> OutputFormat::create_output(
1416         shared_ptr<Device> device, map<string, Glib::VariantBase> options)
1417 {
1418         return shared_ptr<Output>(
1419                 new Output(shared_from_this(), device, options),
1420                 Output::Deleter());
1421 }
1422
1423 Output::Output(shared_ptr<OutputFormat> format,
1424                 shared_ptr<Device> device, map<string, Glib::VariantBase> options) :
1425         UserOwned(sr_output_new(format->_structure,
1426                 map_to_hash_variant(options), device->_structure)),
1427         _format(format),
1428         _device(device),
1429         _options(options)
1430 {
1431 }
1432
1433 Output::~Output()
1434 {
1435         check(sr_output_free(_structure));
1436 }
1437
1438 string Output::receive(shared_ptr<Packet> packet)
1439 {
1440         GString *out;
1441         check(sr_output_send(_structure, packet->_structure, &out));
1442         if (out)
1443         {
1444                 auto result = string(out->str, out->str + out->len);
1445                 g_string_free(out, true);
1446                 return result;
1447         }
1448         else
1449         {
1450                 return string();
1451         }
1452 }
1453
1454 #include "enums.cpp"
1455
1456 }