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