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(), serial_number()};
 446
 447         for (size_t i = 0; i < parts.size(); i++)
 448         {
 449                 if (parts[i].length() > 0)
 450                 {
 451                         if (i != 0)
 452                                 s << " ";
 453                         s << parts[i];
 454                 }
 455         }
 456
 457         if (serial_number().length() == 0 && connection_id().length() > 0)
 458                 s << " " << connection_id();
 459
 460         return s.str();
 461 }
 462
 463 string Device::vendor()
 464 {
 465         return valid_string(_structure->vendor);
 466 }
 467
 468 string Device::model()
 469 {
 470         return valid_string(_structure->model);
 471 }
 472
 473 string Device::version()
 474 {
 475         return valid_string(_structure->version);
 476 }
 477
 478 string Device::serial_number()
 479 {
 480         return valid_string(_structure->serial_num);
 481 }
 482
 483 string Device::connection_id()
 484 {
 485         return valid_string(_structure->connection_id);
 486 }
 487
 488 vector<shared_ptr<Channel>> Device::channels()
 489 {
 490         vector<shared_ptr<Channel>> result;
 491         for (auto channel = _structure->channels; channel; channel = channel->next)
 492                 result.push_back(
 493                         _channels[(struct sr_channel *) channel->data]->get_shared_pointer(
 494                                 get_shared_from_this()));
 495         return result;
 496 }
 497
 498 shared_ptr<Channel> Device::get_channel(struct sr_channel *ptr)
 499 {
 500         return _channels[ptr]->get_shared_pointer(get_shared_from_this());
 501 }
 502
 503 map<string, shared_ptr<ChannelGroup>>
 504 Device::channel_groups()
 505 {
 506         map<string, shared_ptr<ChannelGroup>> result;
 507         for (auto entry: _channel_groups)
 508         {
 509                 auto name = entry.first;
 510                 auto channel_group = entry.second;
 511                 result[name] = channel_group->get_shared_pointer(get_shared_from_this());
 512         }
 513         return result;
 514 }
 515
 516 void Device::open()
 517 {
 518         check(sr_dev_open(_structure));
 519 }
 520
 521 void Device::close()
 522 {
 523         check(sr_dev_close(_structure));
 524 }
 525
 526 HardwareDevice::HardwareDevice(shared_ptr<Driver> driver,
 527                 struct sr_dev_inst *structure) :
 528         UserOwned(structure),
 529         Device(structure),
 530         _driver(driver)
 531 {
 532 }
 533
 534 HardwareDevice::~HardwareDevice()
 535 {
 536 }
 537
 538 shared_ptr<Device> HardwareDevice::get_shared_from_this()
 539 {
 540         return static_pointer_cast<Device>(shared_from_this());
 541 }
 542
 543 shared_ptr<Driver> HardwareDevice::driver()
 544 {
 545         return _driver;
 546 }
 547
 548 Channel::Channel(struct sr_channel *structure) :
 549         ParentOwned(structure),
 550         _type(ChannelType::get(_structure->type))
 551 {
 552 }
 553
 554 Channel::~Channel()
 555 {
 556 }
 557
 558 string Channel::name()
 559 {
 560         return valid_string(_structure->name);
 561 }
 562
 563 void Channel::set_name(string name)
 564 {
 565         check(sr_dev_channel_name_set(_parent->_structure,
 566                 _structure->index, name.c_str()));
 567 }
 568
 569 const ChannelType *Channel::type()
 570 {
 571         return ChannelType::get(_structure->type);
 572 }
 573
 574 bool Channel::enabled()
 575 {
 576         return _structure->enabled;
 577 }
 578
 579 void Channel::set_enabled(bool value)
 580 {
 581         check(sr_dev_channel_enable(_parent->_structure, _structure->index, value));
 582 }
 583
 584 unsigned int Channel::index()
 585 {
 586         return _structure->index;
 587 }
 588
 589 ChannelGroup::ChannelGroup(Device *device,
 590                 struct sr_channel_group *structure) :
 591         ParentOwned(structure),
 592         Configurable(device->_structure->driver, device->_structure, structure)
 593 {
 594         for (GSList *entry = structure->channels; entry; entry = entry->next)
 595                 _channels.push_back(device->_channels[(struct sr_channel *)entry->data]);
 596 }
 597
 598 ChannelGroup::~ChannelGroup()
 599 {
 600 }
 601
 602 string ChannelGroup::name()
 603 {
 604         return valid_string(_structure->name);
 605 }
 606
 607 vector<shared_ptr<Channel>> ChannelGroup::channels()
 608 {
 609         vector<shared_ptr<Channel>> result;
 610         for (auto channel : _channels)
 611                 result.push_back(channel->get_shared_pointer(_parent));
 612         return result;
 613 }
 614
 615 Trigger::Trigger(shared_ptr<Context> context, string name) :
 616         UserOwned(sr_trigger_new(name.c_str())),
 617         _context(context)
 618 {
 619         for (auto stage = _structure->stages; stage; stage = stage->next)
 620                 _stages.push_back(
 621                         new TriggerStage((struct sr_trigger_stage *) stage->data));
 622 }
 623
 624 Trigger::~Trigger()
 625 {
 626         for (auto stage: _stages)
 627                 delete stage;
 628
 629         sr_trigger_free(_structure);
 630 }
 631
 632 string Trigger::name()
 633 {
 634         return _structure->name;
 635 }
 636
 637 vector<shared_ptr<TriggerStage>> Trigger::stages()
 638 {
 639         vector<shared_ptr<TriggerStage>> result;
 640         for (auto stage : _stages)
 641                 result.push_back(stage->get_shared_pointer(this));
 642         return result;
 643 }
 644
 645 shared_ptr<TriggerStage> Trigger::add_stage()
 646 {
 647         auto stage = new TriggerStage(sr_trigger_stage_add(_structure));
 648         _stages.push_back(stage);
 649         return stage->get_shared_pointer(this);
 650 }
 651
 652 TriggerStage::TriggerStage(struct sr_trigger_stage *structure) :
 653         ParentOwned(structure)
 654 {
 655 }
 656
 657 TriggerStage::~TriggerStage()
 658 {
 659         for (auto match : _matches)
 660                 delete match;
 661 }
 662
 663 int TriggerStage::number()
 664 {
 665         return _structure->stage;
 666 }
 667
 668 vector<shared_ptr<TriggerMatch>> TriggerStage::matches()
 669 {
 670         vector<shared_ptr<TriggerMatch>> result;
 671         for (auto match : _matches)
 672                 result.push_back(match->get_shared_pointer(this));
 673         return result;
 674 }
 675
 676 void TriggerStage::add_match(shared_ptr<Channel> channel,
 677         const TriggerMatchType *type, float value)
 678 {
 679         check(sr_trigger_match_add(_structure,
 680                 channel->_structure, type->id(), value));
 681         _matches.push_back(new TriggerMatch(
 682                 (struct sr_trigger_match *) g_slist_last(
 683                         _structure->matches)->data, channel));
 684 }
 685
 686 void TriggerStage::add_match(shared_ptr<Channel> channel,
 687         const TriggerMatchType *type)
 688 {
 689         add_match(channel, type, NAN);
 690 }
 691
 692 TriggerMatch::TriggerMatch(struct sr_trigger_match *structure,
 693                 shared_ptr<Channel> channel) :
 694         ParentOwned(structure),
 695         _channel(channel)
 696 {
 697 }
 698
 699 TriggerMatch::~TriggerMatch()
 700 {
 701 }
 702
 703 shared_ptr<Channel> TriggerMatch::channel()
 704 {
 705         return _channel;
 706 }
 707
 708 const TriggerMatchType *TriggerMatch::type()
 709 {
 710         return TriggerMatchType::get(_structure->match);
 711 }
 712
 713 float TriggerMatch::value()
 714 {
 715         return _structure->value;
 716 }
 717
 718 DatafeedCallbackData::DatafeedCallbackData(Session *session,
 719                 DatafeedCallbackFunction callback) :
 720         _callback(callback),
 721         _session(session)
 722 {
 723 }
 724
 725 void DatafeedCallbackData::run(const struct sr_dev_inst *sdi,
 726         const struct sr_datafeed_packet *pkt)
 727 {
 728         auto device = _session->_devices[sdi];
 729         auto packet = shared_ptr<Packet>(new Packet(device, pkt), Packet::Deleter());
 730         _callback(device, packet);
 731 }
 732
 733 SourceCallbackData::SourceCallbackData(shared_ptr<EventSource> source) :
 734         _source(source)
 735 {
 736 }
 737
 738 bool SourceCallbackData::run(int revents)
 739 {
 740         return _source->_callback((Glib::IOCondition) revents);
 741 }
 742
 743 shared_ptr<EventSource> EventSource::create(int fd, Glib::IOCondition events,
 744         int timeout, SourceCallbackFunction callback)
 745 {
 746         auto result = new EventSource(timeout, callback);
 747         result->_type = EventSource::SOURCE_FD;
 748         result->_fd = fd;
 749         result->_events = events;
 750         return shared_ptr<EventSource>(result, EventSource::Deleter());
 751 }
 752
 753 shared_ptr<EventSource> EventSource::create(Glib::PollFD pollfd, int timeout,
 754         SourceCallbackFunction callback)
 755 {
 756         auto result = new EventSource(timeout, callback);
 757         result->_type = EventSource::SOURCE_POLLFD;
 758         result->_pollfd = pollfd;
 759         return shared_ptr<EventSource>(result, EventSource::Deleter());
 760 }
 761
 762 shared_ptr<EventSource> EventSource::create(Glib::RefPtr<Glib::IOChannel> channel,
 763         Glib::IOCondition events, int timeout, SourceCallbackFunction callback)
 764 {
 765         auto result = new EventSource(timeout, callback);
 766         result->_type = EventSource::SOURCE_IOCHANNEL;
 767         result->_channel = channel;
 768         result->_events = events;
 769         return shared_ptr<EventSource>(result, EventSource::Deleter());
 770 }
 771
 772 EventSource::EventSource(int timeout, SourceCallbackFunction callback) :
 773         _timeout(timeout),
 774         _callback(callback)
 775 {
 776 }
 777
 778 EventSource::~EventSource()
 779 {
 780 }
 781
 782 SessionDevice::SessionDevice(struct sr_dev_inst *structure) :
 783         ParentOwned(structure),
 784         Device(structure)
 785 {
 786 }
 787
 788 SessionDevice::~SessionDevice()
 789 {
 790 }
 791
 792 shared_ptr<Device> SessionDevice::get_shared_from_this()
 793 {
 794         return static_pointer_cast<Device>(shared_from_this());
 795 }
 796
 797 Session::Session(shared_ptr<Context> context) :
 798         UserOwned(_structure),
 799         _context(context),
 800         _saving(false)
 801 {
 802         check(sr_session_new(&_structure));
 803         _context->_session = this;
 804 }
 805
 806 Session::Session(shared_ptr<Context> context, string filename) :
 807         UserOwned(_structure),
 808         _context(context),
 809         _saving(false)
 810 {
 811         check(sr_session_load(filename.c_str(), &_structure));
 812         GSList *dev_list;
 813         check(sr_session_dev_list(_structure, &dev_list));
 814         for (GSList *dev = dev_list; dev; dev = dev->next)
 815         {
 816                 auto sdi = (struct sr_dev_inst *) dev->data;
 817                 auto device = new SessionDevice(sdi);
 818                 _devices[sdi] = shared_ptr<SessionDevice>(device,
 819                         SessionDevice::Deleter());
 820         }
 821         _context->_session = this;
 822 }
 823
 824 Session::~Session()
 825 {
 826         check(sr_session_destroy(_structure));
 827
 828         for (auto callback : _datafeed_callbacks)
 829                 delete callback;
 830
 831         for (auto entry : _source_callbacks)
 832                 delete entry.second;
 833 }
 834
 835 void Session::add_device(shared_ptr<Device> device)
 836 {
 837         check(sr_session_dev_add(_structure, device->_structure));
 838         _devices[device->_structure] = device;
 839 }
 840
 841 vector<shared_ptr<Device>> Session::devices()
 842 {
 843         GSList *dev_list;
 844         check(sr_session_dev_list(_structure, &dev_list));
 845         vector<shared_ptr<Device>> result;
 846         for (GSList *dev = dev_list; dev; dev = dev->next)
 847         {
 848                 auto sdi = (struct sr_dev_inst *) dev->data;
 849                 result.push_back(_devices[sdi]);
 850         }
 851         return result;
 852 }
 853
 854 void Session::remove_devices()
 855 {
 856         _devices.clear();
 857         check(sr_session_dev_remove_all(_structure));
 858 }
 859
 860 void Session::start()
 861 {
 862         check(sr_session_start(_structure));
 863 }
 864
 865 void Session::run()
 866 {
 867         check(sr_session_run(_structure));
 868 }
 869
 870 void Session::stop()
 871 {
 872         check(sr_session_stop(_structure));
 873 }
 874
 875 void Session::begin_save(string filename)
 876 {
 877         _saving = true;
 878         _save_initialized = false;
 879         _save_filename = filename;
 880         _save_samplerate = 0;
 881 }
 882
 883 void Session::append(shared_ptr<Packet> packet)
 884 {
 885         if (!_saving)
 886                 throw Error(SR_ERR);
 887
 888         switch (packet->_structure->type)
 889         {
 890                 case SR_DF_META:
 891                 {
 892                         auto meta = (const struct sr_datafeed_meta *)
 893                                 packet->_structure->payload;
 894
 895                         for (auto l = meta->config; l; l = l->next)
 896                         {
 897                                 auto config = (struct sr_config *) l->data;
 898                                 if (config->key == SR_CONF_SAMPLERATE)
 899                                         _save_samplerate = g_variant_get_uint64(config->data);
 900                         }
 901
 902                         break;
 903                 }
 904                 case SR_DF_LOGIC:
 905                 {
 906                         if (_save_samplerate == 0)
 907                         {
 908                                 GVariant *samplerate;
 909
 910                                 check(sr_config_get(packet->_device->_structure->driver,
 911                                         packet->_device->_structure, NULL, SR_CONF_SAMPLERATE,
 912                                         &samplerate));
 913
 914                                 _save_samplerate = g_variant_get_uint64(samplerate);
 915
 916                                 g_variant_unref(samplerate);
 917                         }
 918
 919                         if (!_save_initialized)
 920                         {
 921                                 vector<shared_ptr<Channel>> save_channels;
 922
 923                                 for (auto channel : packet->_device->channels())
 924                                         if (channel->_structure->enabled &&
 925                                                         channel->_structure->type == SR_CHANNEL_LOGIC)
 926                                                 save_channels.push_back(channel);
 927
 928                                 auto channels = g_new(char *, save_channels.size());
 929
 930                                 int i = 0;
 931                                 for (auto channel : save_channels)
 932                                                 channels[i++] = channel->_structure->name;
 933                                 channels[i] = NULL;
 934
 935                                 int ret = sr_session_save_init(_structure, _save_filename.c_str(),
 936                                                 _save_samplerate, channels);
 937
 938                                 g_free(channels);
 939
 940                                 if (ret != SR_OK)
 941                                         throw Error(ret);
 942
 943                                 _save_initialized = true;
 944                         }
 945
 946                         auto logic = (const struct sr_datafeed_logic *)
 947                                 packet->_structure->payload;
 948
 949                         check(sr_session_append(_structure, _save_filename.c_str(),
 950                                 (uint8_t *) logic->data, logic->unitsize,
 951                                 logic->length / logic->unitsize));
 952                 }
 953         }
 954 }
 955
 956 void Session::append(void *data, size_t length, unsigned int unit_size)
 957 {
 958         check(sr_session_append(_structure, _save_filename.c_str(),
 959                 (uint8_t *) data, unit_size, length));
 960 }
 961
 962 static void datafeed_callback(const struct sr_dev_inst *sdi,
 963         const struct sr_datafeed_packet *pkt, void *cb_data)
 964 {
 965         auto callback = static_cast<DatafeedCallbackData *>(cb_data);
 966         callback->run(sdi, pkt);
 967 }
 968
 969 void Session::add_datafeed_callback(DatafeedCallbackFunction callback)
 970 {
 971         auto cb_data = new DatafeedCallbackData(this, callback);
 972         check(sr_session_datafeed_callback_add(_structure,
 973                 datafeed_callback, cb_data));
 974         _datafeed_callbacks.push_back(cb_data);
 975 }
 976
 977 void Session::remove_datafeed_callbacks(void)
 978 {
 979         check(sr_session_datafeed_callback_remove_all(_structure));
 980         for (auto callback : _datafeed_callbacks)
 981                 delete callback;
 982         _datafeed_callbacks.clear();
 983 }
 984
 985 static int source_callback(int fd, int revents, void *cb_data)
 986 {
 987         (void) fd;
 988         auto callback = (SourceCallbackData *) cb_data;
 989         return callback->run(revents);
 990 }
 991
 992 void Session::add_source(shared_ptr<EventSource> source)
 993 {
 994         if (_source_callbacks.count(source) == 1)
 995                 throw Error(SR_ERR_ARG);
 996
 997         auto cb_data = new SourceCallbackData(source);
 998
 999         switch (source->_type)
1000         {
1001                 case EventSource::SOURCE_FD:
1002                         check(sr_session_source_add(_structure, source->_fd, source->_events,
1003                                 source->_timeout, source_callback, cb_data));
1004                         break;
1005                 case EventSource::SOURCE_POLLFD:
1006                         check(sr_session_source_add_pollfd(_structure,
1007                                 source->_pollfd.gobj(), source->_timeout, source_callback,
1008                                 cb_data));
1009                         break;
1010                 case EventSource::SOURCE_IOCHANNEL:
1011                         check(sr_session_source_add_channel(_structure,
1012                                 source->_channel->gobj(), source->_events, source->_timeout,
1013                                 source_callback, cb_data));
1014                         break;
1015         }
1016
1017         _source_callbacks[source] = cb_data;
1018 }
1019
1020 void Session::remove_source(shared_ptr<EventSource> source)
1021 {
1022         if (_source_callbacks.count(source) == 0)
1023                 throw Error(SR_ERR_ARG);
1024
1025         switch (source->_type)
1026         {
1027                 case EventSource::SOURCE_FD:
1028                         check(sr_session_source_remove(_structure, source->_fd));
1029                         break;
1030                 case EventSource::SOURCE_POLLFD:
1031                         check(sr_session_source_remove_pollfd(_structure,
1032                                 source->_pollfd.gobj()));
1033                         break;
1034                 case EventSource::SOURCE_IOCHANNEL:
1035                         check(sr_session_source_remove_channel(_structure,
1036                                 source->_channel->gobj()));
1037                         break;
1038         }
1039
1040         delete _source_callbacks[source];
1041
1042         _source_callbacks.erase(source);
1043 }
1044
1045 shared_ptr<Trigger> Session::trigger()
1046 {
1047         return _trigger;
1048 }
1049
1050 void Session::set_trigger(shared_ptr<Trigger> trigger)
1051 {
1052         check(sr_session_trigger_set(_structure, trigger->_structure));
1053         _trigger = trigger;
1054 }
1055
1056 Packet::Packet(shared_ptr<Device> device,
1057         const struct sr_datafeed_packet *structure) :
1058         UserOwned(structure),
1059         _device(device)
1060 {
1061         switch (structure->type)
1062         {
1063                 case SR_DF_HEADER:
1064                         _payload = new Header(
1065                                 static_cast<const struct sr_datafeed_header *>(
1066                                         structure->payload));
1067                         break;
1068                 case SR_DF_META:
1069                         _payload = new Meta(
1070                                 static_cast<const struct sr_datafeed_meta *>(
1071                                         structure->payload));
1072                         break;
1073                 case SR_DF_LOGIC:
1074                         _payload = new Logic(
1075                                 static_cast<const struct sr_datafeed_logic *>(
1076                                         structure->payload));
1077                         break;
1078                 case SR_DF_ANALOG:
1079                         _payload = new Analog(
1080                                 static_cast<const struct sr_datafeed_analog *>(
1081                                         structure->payload));
1082                         break;
1083                 default:
1084                         _payload = nullptr;
1085                         break;
1086         }
1087 }
1088
1089 Packet::~Packet()
1090 {
1091         if (_payload)
1092                 delete _payload;
1093 }
1094
1095 const PacketType *Packet::type()
1096 {
1097         return PacketType::get(_structure->type);
1098 }
1099
1100 shared_ptr<PacketPayload> Packet::payload()
1101 {
1102         if (_payload)
1103                 return _payload->get_shared_pointer(this);
1104         else
1105                 throw Error(SR_ERR_NA);
1106 }
1107
1108 PacketPayload::PacketPayload()
1109 {
1110 }
1111
1112 PacketPayload::~PacketPayload()
1113 {
1114 }
1115
1116 Header::Header(const struct sr_datafeed_header *structure) :
1117         ParentOwned(structure),
1118         PacketPayload()
1119 {
1120 }
1121
1122 Header::~Header()
1123 {
1124 }
1125
1126 shared_ptr<PacketPayload> Header::get_shared_pointer(Packet *_parent)
1127 {
1128         return static_pointer_cast<PacketPayload>(
1129                 ParentOwned::get_shared_pointer(_parent));
1130 }
1131
1132 int Header::feed_version()
1133 {
1134         return _structure->feed_version;
1135 }
1136
1137 Glib::TimeVal Header::start_time()
1138 {
1139         return Glib::TimeVal(
1140                 _structure->starttime.tv_sec,
1141                 _structure->starttime.tv_usec);
1142 }
1143
1144 Meta::Meta(const struct sr_datafeed_meta *structure) :
1145         ParentOwned(structure),
1146         PacketPayload()
1147 {
1148 }
1149
1150 Meta::~Meta()
1151 {
1152 }
1153
1154 shared_ptr<PacketPayload> Meta::get_shared_pointer(Packet *_parent)
1155 {
1156         return static_pointer_cast<PacketPayload>(
1157                 ParentOwned::get_shared_pointer(_parent));
1158 }
1159
1160 map<const ConfigKey *, Glib::VariantBase> Meta::config()
1161 {
1162         map<const ConfigKey *, Glib::VariantBase> result;
1163         for (auto l = _structure->config; l; l = l->next)
1164         {
1165                 auto config = (struct sr_config *) l->data;
1166                 result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data);
1167         }
1168         return result;
1169 }
1170
1171 Logic::Logic(const struct sr_datafeed_logic *structure) :
1172         ParentOwned(structure),
1173         PacketPayload()
1174 {
1175 }
1176
1177 Logic::~Logic()
1178 {
1179 }
1180
1181 shared_ptr<PacketPayload> Logic::get_shared_pointer(Packet *_parent)
1182 {
1183         return static_pointer_cast<PacketPayload>(
1184                 ParentOwned::get_shared_pointer(_parent));
1185 }
1186
1187 void *Logic::data_pointer()
1188 {
1189         return _structure->data;
1190 }
1191
1192 size_t Logic::data_length()
1193 {
1194         return _structure->length;
1195 }
1196
1197 unsigned int Logic::unit_size()
1198 {
1199         return _structure->unitsize;
1200 }
1201
1202 Analog::Analog(const struct sr_datafeed_analog *structure) :
1203         ParentOwned(structure),
1204         PacketPayload()
1205 {
1206 }
1207
1208 Analog::~Analog()
1209 {
1210 }
1211
1212 shared_ptr<PacketPayload> Analog::get_shared_pointer(Packet *_parent)
1213 {
1214         return static_pointer_cast<PacketPayload>(
1215                 ParentOwned::get_shared_pointer(_parent));
1216 }
1217
1218 float *Analog::data_pointer()
1219 {
1220         return _structure->data;
1221 }
1222
1223 unsigned int Analog::num_samples()
1224 {
1225         return _structure->num_samples;
1226 }
1227
1228 vector<shared_ptr<Channel>> Analog::channels()
1229 {
1230         vector<shared_ptr<Channel>> result;
1231         for (auto l = _structure->channels; l; l = l->next)
1232                 result.push_back(_parent->_device->get_channel(
1233                         (struct sr_channel *)l->data));
1234         return result;
1235 }
1236
1237 const Quantity *Analog::mq()
1238 {
1239         return Quantity::get(_structure->mq);
1240 }
1241
1242 const Unit *Analog::unit()
1243 {
1244         return Unit::get(_structure->unit);
1245 }
1246
1247 vector<const QuantityFlag *> Analog::mq_flags()
1248 {
1249         return QuantityFlag::flags_from_mask(_structure->mqflags);
1250 }
1251
1252 InputFormat::InputFormat(const struct sr_input_module *structure) :
1253         ParentOwned(structure)
1254 {
1255 }
1256
1257 InputFormat::~InputFormat()
1258 {
1259 }
1260
1261 string InputFormat::name()
1262 {
1263         return valid_string(sr_input_id_get(_structure));
1264 }
1265
1266 string InputFormat::description()
1267 {
1268         return valid_string(sr_input_description_get(_structure));
1269 }
1270
1271 map<string, shared_ptr<Option>> InputFormat::options()
1272 {
1273         const struct sr_option **options = sr_input_options_get(_structure);
1274         auto option_array = shared_ptr<const struct sr_option *>(
1275                 options, sr_input_options_free);
1276         map<string, shared_ptr<Option>> result;
1277         for (int i = 0; options[i]; i++)
1278                 result[options[i]->id] = shared_ptr<Option>(
1279                         new Option(options[i], option_array), Option::Deleter());
1280         return result;
1281 }
1282
1283 shared_ptr<Input> InputFormat::create_input(
1284         map<string, Glib::VariantBase> options)
1285 {
1286         auto input = sr_input_new(_structure, map_to_hash_variant(options));
1287         if (!input)
1288                 throw Error(SR_ERR_ARG);
1289         return shared_ptr<Input>(
1290                 new Input(_parent->shared_from_this(), input), Input::Deleter());
1291 }
1292
1293 Input::Input(shared_ptr<Context> context, const struct sr_input *structure) :
1294         UserOwned(structure),
1295         _context(context),
1296         _device(nullptr)
1297 {
1298 }
1299
1300 shared_ptr<InputDevice> Input::device()
1301 {
1302         if (!_device)
1303         {
1304                 auto sdi = sr_input_dev_inst_get(_structure);
1305                 if (!sdi)
1306                         throw Error(SR_ERR_NA);
1307                 _device = new InputDevice(shared_from_this(), sdi);
1308         }
1309
1310         return _device->get_shared_pointer(shared_from_this());
1311 }
1312
1313 void Input::send(string data)
1314 {
1315         auto gstr = g_string_new(data.c_str());
1316         auto ret = sr_input_send(_structure, gstr);
1317         g_string_free(gstr, false);
1318         check(ret);
1319 }
1320
1321 void Input::end()
1322 {
1323         check(sr_input_end(_structure));
1324 }
1325
1326 Input::~Input()
1327 {
1328         if (_device)
1329                 delete _device;
1330         sr_input_free(_structure);
1331 }
1332
1333 InputDevice::InputDevice(shared_ptr<Input> input,
1334                 struct sr_dev_inst *structure) :
1335         ParentOwned(structure),
1336         Device(structure),
1337         _input(input)
1338 {
1339 }
1340
1341 InputDevice::~InputDevice()
1342 {
1343 }
1344
1345 shared_ptr<Device> InputDevice::get_shared_from_this()
1346 {
1347         return static_pointer_cast<Device>(shared_from_this());
1348 }
1349
1350 Option::Option(const struct sr_option *structure,
1351                 shared_ptr<const struct sr_option *> structure_array) :
1352         UserOwned(structure),
1353         _structure_array(structure_array)
1354 {
1355 }
1356
1357 Option::~Option()
1358 {
1359 }
1360
1361 string Option::id()
1362 {
1363         return valid_string(_structure->id);
1364 }
1365
1366 string Option::name()
1367 {
1368         return valid_string(_structure->name);
1369 }
1370
1371 string Option::description()
1372 {
1373         return valid_string(_structure->desc);
1374 }
1375
1376 Glib::VariantBase Option::default_value()
1377 {
1378         return Glib::VariantBase(_structure->def, true);
1379 }
1380
1381 vector<Glib::VariantBase> Option::values()
1382 {
1383         vector<Glib::VariantBase> result;
1384         for (auto l = _structure->values; l; l = l->next)
1385                 result.push_back(Glib::VariantBase((GVariant *) l->data, true));
1386         return result;
1387 }
1388
1389 OutputFormat::OutputFormat(const struct sr_output_module *structure) :
1390         ParentOwned(structure)
1391 {
1392 }
1393
1394 OutputFormat::~OutputFormat()
1395 {
1396 }
1397
1398 string OutputFormat::name()
1399 {
1400         return valid_string(sr_output_id_get(_structure));
1401 }
1402
1403 string OutputFormat::description()
1404 {
1405         return valid_string(sr_output_description_get(_structure));
1406 }
1407
1408 map<string, shared_ptr<Option>> OutputFormat::options()
1409 {
1410         const struct sr_option **options = sr_output_options_get(_structure);
1411         auto option_array = shared_ptr<const struct sr_option *>(
1412                 options, sr_output_options_free);
1413         map<string, shared_ptr<Option>> result;
1414         for (int i = 0; options[i]; i++)
1415                 result[options[i]->id] = shared_ptr<Option>(
1416                         new Option(options[i], option_array), Option::Deleter());
1417         return result;
1418 }
1419
1420 shared_ptr<Output> OutputFormat::create_output(
1421         shared_ptr<Device> device, map<string, Glib::VariantBase> options)
1422 {
1423         return shared_ptr<Output>(
1424                 new Output(shared_from_this(), device, options),
1425                 Output::Deleter());
1426 }
1427
1428 Output::Output(shared_ptr<OutputFormat> format,
1429                 shared_ptr<Device> device, map<string, Glib::VariantBase> options) :
1430         UserOwned(sr_output_new(format->_structure,
1431                 map_to_hash_variant(options), device->_structure)),
1432         _format(format),
1433         _device(device),
1434         _options(options)
1435 {
1436 }
1437
1438 Output::~Output()
1439 {
1440         check(sr_output_free(_structure));
1441 }
1442
1443 string Output::receive(shared_ptr<Packet> packet)
1444 {
1445         GString *out;
1446         check(sr_output_send(_structure, packet->_structure, &out));
1447         if (out)
1448         {
1449                 auto result = string(out->str, out->str + out->len);
1450                 g_string_free(out, true);
1451                 return result;
1452         }
1453         else
1454         {
1455                 return string();
1456         }
1457 }
1458
1459 #include "enums.cpp"
1460
1461 }