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