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 const char *valid_string(const char *input)
  43 {
  44         if (input != NULL)
  45                 return input;
  46         else
  47                 return "";
  48 }
  49
  50 /** Helper function to convert between map<string, VariantBase> and GHashTable */
  51 static GHashTable *map_to_hash_variant(const map<string, Glib::VariantBase> &input)
  52 {
  53         auto output = g_hash_table_new_full(
  54                 g_str_hash, g_str_equal, g_free, (GDestroyNotify) g_variant_unref);
  55         for (auto entry : input)
  56                 g_hash_table_insert(output,
  57                         g_strdup(entry.first.c_str()),
  58                         entry.second.gobj_copy());
  59         return output;
  60 }
  61
  62 Error::Error(int result) : result(result)
  63 {
  64 }
  65
  66 const char *Error::what() const throw()
  67 {
  68         return sr_strerror(result);
  69 }
  70
  71 Error::~Error() throw()
  72 {
  73 }
  74
  75 ResourceReader::~ResourceReader()
  76 {
  77 }
  78
  79 SR_PRIV int ResourceReader::open_callback(struct sr_resource *res,
  80                 const char *name, void *cb_data)
  81 {
  82         try {
  83                 auto *const reader = static_cast<ResourceReader*>(cb_data);
  84                 reader->open(res, name);
  85         } catch (const Error &err) {
  86                 return err.result;
  87         } catch (...) {
  88                 return SR_ERR;
  89         }
  90         return SR_OK;
  91 }
  92
  93 SR_PRIV int ResourceReader::close_callback(struct sr_resource *res, void *cb_data)
  94 {
  95         try {
  96                 auto *const reader = static_cast<ResourceReader*>(cb_data);
  97                 reader->close(res);
  98         } catch (const Error &err) {
  99                 return err.result;
 100         } catch (...) {
 101                 return SR_ERR;
 102         }
 103         return SR_OK;
 104 }
 105
 106 SR_PRIV ssize_t ResourceReader::read_callback(const struct sr_resource *res,
 107                 void *buf, size_t count, void *cb_data)
 108 {
 109         try {
 110                 auto *const reader = static_cast<ResourceReader*>(cb_data);
 111                 return reader->read(res, buf, count);
 112         } catch (const Error &err) {
 113                 return err.result;
 114         } catch (...) {
 115                 return SR_ERR;
 116         }
 117 }
 118
 119 shared_ptr<Context> Context::create()
 120 {
 121         return shared_ptr<Context>(new Context(), Context::Deleter());
 122 }
 123
 124 Context::Context() :
 125         UserOwned(_structure),
 126         _session(NULL)
 127 {
 128         check(sr_init(&_structure));
 129
 130         struct sr_dev_driver **driver_list = sr_driver_list(_structure);
 131         if (driver_list)
 132                 for (int i = 0; driver_list[i]; i++)
 133                         _drivers[driver_list[i]->name] =
 134                                 new Driver(driver_list[i]);
 135         const struct sr_input_module **input_list = sr_input_list();
 136         if (input_list)
 137                 for (int i = 0; input_list[i]; i++)
 138                         _input_formats[sr_input_id_get(input_list[i])] =
 139                                 new InputFormat(input_list[i]);
 140         const struct sr_output_module **output_list = sr_output_list();
 141         if (output_list)
 142                 for (int i = 0; output_list[i]; i++)
 143                         _output_formats[sr_output_id_get(output_list[i])] =
 144                                 new OutputFormat(output_list[i]);
 145 }
 146
 147 string Context::package_version()
 148 {
 149         return sr_package_version_string_get();
 150 }
 151
 152 string Context::lib_version()
 153 {
 154         return sr_lib_version_string_get();
 155 }
 156
 157 map<string, shared_ptr<Driver>> Context::drivers()
 158 {
 159         map<string, shared_ptr<Driver>> result;
 160         for (auto entry: _drivers)
 161         {
 162                 auto name = entry.first;
 163                 auto driver = entry.second;
 164                 result[name] = driver->get_shared_pointer(this);
 165         }
 166         return result;
 167 }
 168
 169 map<string, shared_ptr<InputFormat>> Context::input_formats()
 170 {
 171         map<string, shared_ptr<InputFormat>> result;
 172         for (auto entry: _input_formats)
 173         {
 174                 auto name = entry.first;
 175                 auto input_format = entry.second;
 176                 result[name] = input_format->get_shared_pointer(this);
 177         }
 178         return result;
 179 }
 180
 181 map<string, shared_ptr<OutputFormat>> Context::output_formats()
 182 {
 183         map<string, shared_ptr<OutputFormat>> result;
 184         for (auto entry: _output_formats)
 185         {
 186                 auto name = entry.first;
 187                 auto output_format = entry.second;
 188                 result[name] = output_format->get_shared_pointer(this);
 189         }
 190         return result;
 191 }
 192
 193 Context::~Context()
 194 {
 195         for (auto entry : _drivers)
 196                 delete entry.second;
 197         for (auto entry : _input_formats)
 198                 delete entry.second;
 199         for (auto entry : _output_formats)
 200                 delete entry.second;
 201         check(sr_exit(_structure));
 202 }
 203
 204 const LogLevel *Context::log_level()
 205 {
 206         return LogLevel::get(sr_log_loglevel_get());
 207 }
 208
 209 void Context::set_log_level(const LogLevel *level)
 210 {
 211         check(sr_log_loglevel_set(level->id()));
 212 }
 213
 214 static int call_log_callback(void *cb_data, int loglevel, const char *format, va_list args)
 215 {
 216         va_list args_copy;
 217         va_copy(args_copy, args);
 218         int length = vsnprintf(NULL, 0, format, args_copy);
 219         va_end(args_copy);
 220         char *buf = (char *) g_malloc(length + 1);
 221         vsprintf(buf, format, args);
 222         string message(buf, length);
 223         g_free(buf);
 224
 225         LogCallbackFunction callback = *((LogCallbackFunction *) cb_data);
 226
 227         try
 228         {
 229                 callback(LogLevel::get(loglevel), message);
 230         }
 231         catch (Error e)
 232         {
 233                 return e.result;
 234         }
 235
 236         return SR_OK;
 237 }
 238
 239 void Context::set_log_callback(LogCallbackFunction callback)
 240 {
 241         _log_callback = move(callback);
 242         check(sr_log_callback_set(call_log_callback, &_log_callback));
 243 }
 244
 245 void Context::set_log_callback_default()
 246 {
 247         check(sr_log_callback_set_default());
 248         _log_callback = nullptr;
 249 }
 250
 251 void Context::set_resource_reader(ResourceReader *reader)
 252 {
 253         if (reader) {
 254                 check(sr_resource_set_hooks(_structure,
 255                                 &ResourceReader::open_callback,
 256                                 &ResourceReader::close_callback,
 257                                 &ResourceReader::read_callback, reader));
 258         } else {
 259                 check(sr_resource_set_hooks(_structure,
 260                                 nullptr, nullptr, nullptr, nullptr));
 261         }
 262 }
 263
 264 shared_ptr<Session> Context::create_session()
 265 {
 266         return shared_ptr<Session>(
 267                 new Session(shared_from_this()), Session::Deleter());
 268 }
 269
 270 shared_ptr<UserDevice> Context::create_user_device(
 271                 string vendor, string model, string version)
 272 {
 273         return shared_ptr<UserDevice>(
 274                 new UserDevice(vendor, model, version), UserDevice::Deleter());
 275 }
 276
 277 shared_ptr<Packet> Context::create_header_packet(Glib::TimeVal start_time)
 278 {
 279         auto header = g_new(struct sr_datafeed_header, 1);
 280         header->feed_version = 1;
 281         header->starttime.tv_sec = start_time.tv_sec;
 282         header->starttime.tv_usec = start_time.tv_usec;
 283         auto packet = g_new(struct sr_datafeed_packet, 1);
 284         packet->type = SR_DF_HEADER;
 285         packet->payload = header;
 286         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 287 }
 288
 289 shared_ptr<Packet> Context::create_meta_packet(
 290         const map<const ConfigKey *, Glib::VariantBase> &config)
 291 {
 292         auto meta = g_new0(struct sr_datafeed_meta, 1);
 293         for (auto input : config)
 294         {
 295                 auto key = input.first;
 296                 auto value = input.second;
 297                 auto output = g_new(struct sr_config, 1);
 298                 output->key = key->id();
 299                 output->data = value.gobj();
 300                 g_variant_ref(output->data);
 301                 meta->config = g_slist_append(meta->config, output);
 302         }
 303         auto packet = g_new(struct sr_datafeed_packet, 1);
 304         packet->type = SR_DF_META;
 305         packet->payload = meta;
 306         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 307 }
 308
 309 shared_ptr<Packet> Context::create_logic_packet(
 310         void *data_pointer, size_t data_length, unsigned int unit_size)
 311 {
 312         auto logic = g_new(struct sr_datafeed_logic, 1);
 313         logic->length = data_length;
 314         logic->unitsize = unit_size;
 315         logic->data = data_pointer;
 316         auto packet = g_new(struct sr_datafeed_packet, 1);
 317         packet->type = SR_DF_LOGIC;
 318         packet->payload = logic;
 319         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 320 }
 321
 322 shared_ptr<Packet> Context::create_analog_packet(
 323         const vector<shared_ptr<Channel> > &channels,
 324         float *data_pointer, unsigned int num_samples, const Quantity *mq,
 325         const Unit *unit, const vector<const QuantityFlag *> &mqflags)
 326 {
 327         auto analog = g_new0(struct sr_datafeed_analog, 1);
 328         auto meaning = g_new0(struct sr_analog_meaning, 1);
 329
 330         analog->meaning = meaning;
 331
 332         for (auto channel : channels)
 333                 meaning->channels = g_slist_append(meaning->channels, channel->_structure);
 334         analog->num_samples = num_samples;
 335         meaning->mq = (sr_mq)mq->id();
 336         meaning->unit = (sr_unit)unit->id();
 337         meaning->mqflags = (sr_mqflag)QuantityFlag::mask_from_flags(mqflags);
 338         analog->data = data_pointer;
 339         auto packet = g_new(struct sr_datafeed_packet, 1);
 340         packet->type = SR_DF_ANALOG;
 341         packet->payload = analog;
 342         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 343 }
 344
 345 shared_ptr<Session> Context::load_session(string filename)
 346 {
 347         return shared_ptr<Session>(
 348                 new Session(shared_from_this(), move(filename)), Session::Deleter());
 349 }
 350
 351 shared_ptr<Trigger> Context::create_trigger(string name)
 352 {
 353         return shared_ptr<Trigger>(
 354                 new Trigger(shared_from_this(), move(name)), Trigger::Deleter());
 355 }
 356
 357 shared_ptr<Input> Context::open_file(string filename)
 358 {
 359         const struct sr_input *input;
 360
 361         check(sr_input_scan_file(filename.c_str(), &input));
 362         return shared_ptr<Input>(
 363                 new Input(shared_from_this(), input), Input::Deleter());
 364 }
 365
 366 shared_ptr<Input> Context::open_stream(string header)
 367 {
 368         const struct sr_input *input;
 369
 370         auto gstr = g_string_new(header.c_str());
 371         auto ret = sr_input_scan_buffer(gstr, &input);
 372         g_string_free(gstr, true);
 373         check(ret);
 374         return shared_ptr<Input>(
 375                 new Input(shared_from_this(), input), Input::Deleter());
 376 }
 377
 378 map<string, string> Context::serials(shared_ptr<Driver> driver)
 379 {
 380         GSList *serial_list = sr_serial_list(driver ? driver->_structure : NULL);
 381         map<string, string> serials;
 382
 383         for (GSList *serial = serial_list; serial; serial = serial->next) {
 384                 struct sr_serial_port *port = (sr_serial_port *) serial->data;
 385                 serials[string(port->name)] = string(port->description);
 386         }
 387
 388         g_slist_free_full(serial_list, (GDestroyNotify)sr_serial_free);
 389         return serials;
 390 }
 391
 392 Driver::Driver(struct sr_dev_driver *structure) :
 393         ParentOwned(structure),
 394         Configurable(structure, NULL, NULL),
 395         _initialized(false)
 396 {
 397 }
 398
 399 Driver::~Driver()
 400 {
 401 }
 402
 403 string Driver::name()
 404 {
 405         return valid_string(_structure->name);
 406 }
 407
 408 string Driver::long_name()
 409 {
 410         return valid_string(_structure->longname);
 411 }
 412
 413 vector<shared_ptr<HardwareDevice>> Driver::scan(
 414         const map<const ConfigKey *, Glib::VariantBase> &options)
 415 {
 416         /* Initialise the driver if not yet done. */
 417         if (!_initialized)
 418         {
 419                 check(sr_driver_init(_parent->_structure, _structure));
 420                 _initialized = true;
 421         }
 422
 423         /* Translate scan options to GSList of struct sr_config pointers. */
 424         GSList *option_list = NULL;
 425         for (auto entry : options)
 426         {
 427                 auto key = entry.first;
 428                 auto value = entry.second;
 429                 auto config = g_new(struct sr_config, 1);
 430                 config->key = key->id();
 431                 config->data = value.gobj();
 432                 option_list = g_slist_append(option_list, config);
 433         }
 434
 435         /* Run scan. */
 436         GSList *device_list = sr_driver_scan(_structure, option_list);
 437
 438         /* Free option list. */
 439         g_slist_free_full(option_list, g_free);
 440
 441
 442         /* Create device objects. */
 443         vector<shared_ptr<HardwareDevice>> result;
 444         for (GSList *device = device_list; device; device = device->next)
 445         {
 446                 auto sdi = (struct sr_dev_inst *) device->data;
 447                 result.push_back(shared_ptr<HardwareDevice>(
 448                         new HardwareDevice(shared_from_this(), sdi),
 449                         HardwareDevice::Deleter()));
 450         }
 451
 452         /* Free GSList returned from scan. */
 453         g_slist_free(device_list);
 454
 455         return result;
 456 }
 457
 458 Configurable::Configurable(
 459                 struct sr_dev_driver *driver,
 460                 struct sr_dev_inst *sdi,
 461                 struct sr_channel_group *cg) :
 462         config_driver(driver),
 463         config_sdi(sdi),
 464         config_channel_group(cg)
 465 {
 466 }
 467
 468 Configurable::~Configurable()
 469 {
 470 }
 471
 472 Glib::VariantBase Configurable::config_get(const ConfigKey *key)
 473 {
 474         GVariant *data;
 475         check(sr_config_get(
 476                 config_driver, config_sdi, config_channel_group,
 477                 key->id(), &data));
 478         return Glib::VariantBase(data);
 479 }
 480
 481 void Configurable::config_set(const ConfigKey *key, const Glib::VariantBase &value)
 482 {
 483         check(sr_config_set(
 484                 config_sdi, config_channel_group,
 485                 key->id(), const_cast<GVariant*>(value.gobj())));
 486 }
 487
 488 Glib::VariantContainerBase Configurable::config_list(const ConfigKey *key)
 489 {
 490         GVariant *data;
 491         check(sr_config_list(
 492                 config_driver, config_sdi, config_channel_group,
 493                 key->id(), &data));
 494         return Glib::VariantContainerBase(data);
 495 }
 496
 497 map<const ConfigKey *, set<Capability>> Configurable::config_keys(const ConfigKey *key)
 498 {
 499         GVariant *gvar_opts;
 500         gsize num_opts;
 501         const uint32_t *opts;
 502         map<const ConfigKey *, set<Capability>> result;
 503
 504         check(sr_config_list(
 505                 config_driver, config_sdi, config_channel_group,
 506                 key->id(), &gvar_opts));
 507
 508         opts = (const uint32_t *) g_variant_get_fixed_array(
 509                 gvar_opts, &num_opts, sizeof(uint32_t));
 510
 511         for (gsize i = 0; i < num_opts; i++)
 512         {
 513                 auto key = ConfigKey::get(opts[i] & SR_CONF_MASK);
 514                 set<Capability> capabilities;
 515                 if (opts[i] & SR_CONF_GET)
 516                         capabilities.insert(GET);
 517                 if (opts[i] & SR_CONF_SET)
 518                         capabilities.insert(SET);
 519                 if (opts[i] & SR_CONF_LIST)
 520                         capabilities.insert(LIST);
 521                 result[key] = capabilities;
 522         }
 523
 524         g_variant_unref(gvar_opts);
 525
 526         return result;
 527 }
 528
 529 bool Configurable::config_check(const ConfigKey *key,
 530         const ConfigKey *index_key)
 531 {
 532         GVariant *gvar_opts;
 533         gsize num_opts;
 534         const uint32_t *opts;
 535
 536         if (sr_config_list(config_driver, config_sdi, config_channel_group,
 537                         index_key->id(), &gvar_opts) != SR_OK)
 538                 return false;
 539
 540         opts = (const uint32_t *) g_variant_get_fixed_array(
 541                 gvar_opts, &num_opts, sizeof(uint32_t));
 542
 543         for (gsize i = 0; i < num_opts; i++)
 544         {
 545                 if ((opts[i] & SR_CONF_MASK) == (uint32_t) key->id())
 546                 {
 547                         g_variant_unref(gvar_opts);
 548                         return true;
 549                 }
 550         }
 551
 552         g_variant_unref(gvar_opts);
 553
 554         return false;
 555 }
 556
 557 Device::Device(struct sr_dev_inst *structure) :
 558         Configurable(sr_dev_inst_driver_get(structure), structure, NULL),
 559         _structure(structure)
 560 {
 561         for (GSList *entry = sr_dev_inst_channels_get(structure); entry; entry = entry->next)
 562         {
 563                 auto channel = (struct sr_channel *) entry->data;
 564                 _channels[channel] = new Channel(channel);
 565         }
 566
 567         for (GSList *entry = sr_dev_inst_channel_groups_get(structure); entry; entry = entry->next)
 568         {
 569                 auto group = (struct sr_channel_group *) entry->data;
 570                 _channel_groups[group->name] = new ChannelGroup(this, group);
 571         }
 572 }
 573
 574 Device::~Device()
 575 {
 576         for (auto entry : _channels)
 577                 delete entry.second;
 578         for (auto entry : _channel_groups)
 579                 delete entry.second;
 580 }
 581
 582 string Device::vendor()
 583 {
 584         return valid_string(sr_dev_inst_vendor_get(_structure));
 585 }
 586
 587 string Device::model()
 588 {
 589         return valid_string(sr_dev_inst_model_get(_structure));
 590 }
 591
 592 string Device::version()
 593 {
 594         return valid_string(sr_dev_inst_version_get(_structure));
 595 }
 596
 597 string Device::serial_number()
 598 {
 599         return valid_string(sr_dev_inst_sernum_get(_structure));
 600 }
 601
 602 string Device::connection_id()
 603 {
 604         return valid_string(sr_dev_inst_connid_get(_structure));
 605 }
 606
 607 vector<shared_ptr<Channel>> Device::channels()
 608 {
 609         vector<shared_ptr<Channel>> result;
 610         for (auto channel = sr_dev_inst_channels_get(_structure); channel; channel = channel->next)
 611                 result.push_back(
 612                         _channels[(struct sr_channel *) channel->data]->get_shared_pointer(
 613                                 get_shared_from_this()));
 614         return result;
 615 }
 616
 617 shared_ptr<Channel> Device::get_channel(struct sr_channel *ptr)
 618 {
 619         return _channels[ptr]->get_shared_pointer(get_shared_from_this());
 620 }
 621
 622 map<string, shared_ptr<ChannelGroup>>
 623 Device::channel_groups()
 624 {
 625         map<string, shared_ptr<ChannelGroup>> result;
 626         for (auto entry: _channel_groups)
 627         {
 628                 auto name = entry.first;
 629                 auto channel_group = entry.second;
 630                 result[name] = channel_group->get_shared_pointer(get_shared_from_this());
 631         }
 632         return result;
 633 }
 634
 635 void Device::open()
 636 {
 637         check(sr_dev_open(_structure));
 638 }
 639
 640 void Device::close()
 641 {
 642         check(sr_dev_close(_structure));
 643 }
 644
 645 HardwareDevice::HardwareDevice(shared_ptr<Driver> driver,
 646                 struct sr_dev_inst *structure) :
 647         UserOwned(structure),
 648         Device(structure),
 649         _driver(move(driver))
 650 {
 651 }
 652
 653 HardwareDevice::~HardwareDevice()
 654 {
 655 }
 656
 657 shared_ptr<Device> HardwareDevice::get_shared_from_this()
 658 {
 659         return static_pointer_cast<Device>(shared_from_this());
 660 }
 661
 662 shared_ptr<Driver> HardwareDevice::driver()
 663 {
 664         return _driver;
 665 }
 666
 667 UserDevice::UserDevice(string vendor, string model, string version) :
 668         UserOwned(sr_dev_inst_user_new(
 669                 vendor.c_str(), model.c_str(), version.c_str())),
 670         Device(UserOwned::_structure)
 671 {
 672 }
 673
 674 UserDevice::~UserDevice()
 675 {
 676 }
 677
 678 shared_ptr<Device> UserDevice::get_shared_from_this()
 679 {
 680         return static_pointer_cast<Device>(shared_from_this());
 681 }
 682
 683 shared_ptr<Channel> UserDevice::add_channel(unsigned int index,
 684         const ChannelType *type, string name)
 685 {
 686         check(sr_dev_inst_channel_add(Device::_structure,
 687                 index, type->id(), name.c_str()));
 688         struct sr_channel *structure = (struct sr_channel *)
 689                         g_slist_last(sr_dev_inst_channels_get(Device::_structure))->data;
 690         Channel *channel = new Channel(structure);
 691         _channels[structure] = channel;
 692         return get_channel(structure);
 693 }
 694
 695 Channel::Channel(struct sr_channel *structure) :
 696         ParentOwned(structure),
 697         _type(ChannelType::get(_structure->type))
 698 {
 699 }
 700
 701 Channel::~Channel()
 702 {
 703 }
 704
 705 string Channel::name()
 706 {
 707         return valid_string(_structure->name);
 708 }
 709
 710 void Channel::set_name(string name)
 711 {
 712         check(sr_dev_channel_name_set(_structure, name.c_str()));
 713 }
 714
 715 const ChannelType *Channel::type()
 716 {
 717         return ChannelType::get(_structure->type);
 718 }
 719
 720 bool Channel::enabled()
 721 {
 722         return _structure->enabled;
 723 }
 724
 725 void Channel::set_enabled(bool value)
 726 {
 727         check(sr_dev_channel_enable(_structure, value));
 728 }
 729
 730 unsigned int Channel::index()
 731 {
 732         return _structure->index;
 733 }
 734
 735 ChannelGroup::ChannelGroup(Device *device,
 736                 struct sr_channel_group *structure) :
 737         ParentOwned(structure),
 738         Configurable(sr_dev_inst_driver_get(device->_structure), device->_structure, structure)
 739 {
 740         for (GSList *entry = structure->channels; entry; entry = entry->next)
 741                 _channels.push_back(device->_channels[(struct sr_channel *)entry->data]);
 742 }
 743
 744 ChannelGroup::~ChannelGroup()
 745 {
 746 }
 747
 748 string ChannelGroup::name()
 749 {
 750         return valid_string(_structure->name);
 751 }
 752
 753 vector<shared_ptr<Channel>> ChannelGroup::channels()
 754 {
 755         vector<shared_ptr<Channel>> result;
 756         for (auto channel : _channels)
 757                 result.push_back(channel->get_shared_pointer(_parent));
 758         return result;
 759 }
 760
 761 Trigger::Trigger(shared_ptr<Context> context, string name) :
 762         UserOwned(sr_trigger_new(name.c_str())),
 763         _context(move(context))
 764 {
 765         for (auto stage = _structure->stages; stage; stage = stage->next)
 766                 _stages.push_back(
 767                         new TriggerStage((struct sr_trigger_stage *) stage->data));
 768 }
 769
 770 Trigger::~Trigger()
 771 {
 772         for (auto stage: _stages)
 773                 delete stage;
 774
 775         sr_trigger_free(_structure);
 776 }
 777
 778 string Trigger::name()
 779 {
 780         return _structure->name;
 781 }
 782
 783 vector<shared_ptr<TriggerStage>> Trigger::stages()
 784 {
 785         vector<shared_ptr<TriggerStage>> result;
 786         for (auto stage : _stages)
 787                 result.push_back(stage->get_shared_pointer(this));
 788         return result;
 789 }
 790
 791 shared_ptr<TriggerStage> Trigger::add_stage()
 792 {
 793         auto stage = new TriggerStage(sr_trigger_stage_add(_structure));
 794         _stages.push_back(stage);
 795         return stage->get_shared_pointer(this);
 796 }
 797
 798 TriggerStage::TriggerStage(struct sr_trigger_stage *structure) :
 799         ParentOwned(structure)
 800 {
 801 }
 802
 803 TriggerStage::~TriggerStage()
 804 {
 805         for (auto match : _matches)
 806                 delete match;
 807 }
 808
 809 int TriggerStage::number()
 810 {
 811         return _structure->stage;
 812 }
 813
 814 vector<shared_ptr<TriggerMatch>> TriggerStage::matches()
 815 {
 816         vector<shared_ptr<TriggerMatch>> result;
 817         for (auto match : _matches)
 818                 result.push_back(match->get_shared_pointer(this));
 819         return result;
 820 }
 821
 822 void TriggerStage::add_match(shared_ptr<Channel> channel,
 823         const TriggerMatchType *type, float value)
 824 {
 825         check(sr_trigger_match_add(_structure,
 826                 channel->_structure, type->id(), value));
 827         _matches.push_back(new TriggerMatch(
 828                 (struct sr_trigger_match *) g_slist_last(
 829                         _structure->matches)->data, move(channel)));
 830 }
 831
 832 void TriggerStage::add_match(shared_ptr<Channel> channel,
 833         const TriggerMatchType *type)
 834 {
 835         add_match(move(channel), type, NAN);
 836 }
 837
 838 TriggerMatch::TriggerMatch(struct sr_trigger_match *structure,
 839                 shared_ptr<Channel> channel) :
 840         ParentOwned(structure),
 841         _channel(move(channel))
 842 {
 843 }
 844
 845 TriggerMatch::~TriggerMatch()
 846 {
 847 }
 848
 849 shared_ptr<Channel> TriggerMatch::channel()
 850 {
 851         return _channel;
 852 }
 853
 854 const TriggerMatchType *TriggerMatch::type()
 855 {
 856         return TriggerMatchType::get(_structure->match);
 857 }
 858
 859 float TriggerMatch::value()
 860 {
 861         return _structure->value;
 862 }
 863
 864 DatafeedCallbackData::DatafeedCallbackData(Session *session,
 865                 DatafeedCallbackFunction callback) :
 866         _callback(move(callback)),
 867         _session(session)
 868 {
 869 }
 870
 871 void DatafeedCallbackData::run(const struct sr_dev_inst *sdi,
 872         const struct sr_datafeed_packet *pkt)
 873 {
 874         auto device = _session->get_device(sdi);
 875         auto packet = shared_ptr<Packet>(new Packet(device, pkt), Packet::Deleter());
 876         _callback(move(device), move(packet));
 877 }
 878
 879 SessionDevice::SessionDevice(struct sr_dev_inst *structure) :
 880         ParentOwned(structure),
 881         Device(structure)
 882 {
 883 }
 884
 885 SessionDevice::~SessionDevice()
 886 {
 887 }
 888
 889 shared_ptr<Device> SessionDevice::get_shared_from_this()
 890 {
 891         return static_pointer_cast<Device>(shared_from_this());
 892 }
 893
 894 Session::Session(shared_ptr<Context> context) :
 895         UserOwned(_structure),
 896         _context(move(context))
 897 {
 898         check(sr_session_new(_context->_structure, &_structure));
 899         _context->_session = this;
 900 }
 901
 902 Session::Session(shared_ptr<Context> context, string filename) :
 903         UserOwned(_structure),
 904         _context(move(context)),
 905         _filename(move(filename))
 906 {
 907         check(sr_session_load(_context->_structure, _filename.c_str(), &_structure));
 908         GSList *dev_list;
 909         check(sr_session_dev_list(_structure, &dev_list));
 910         for (GSList *dev = dev_list; dev; dev = dev->next)
 911         {
 912                 auto sdi = (struct sr_dev_inst *) dev->data;
 913                 _owned_devices[sdi] = new SessionDevice(sdi);
 914         }
 915         _context->_session = this;
 916 }
 917
 918 Session::~Session()
 919 {
 920         check(sr_session_destroy(_structure));
 921
 922         for (auto callback : _datafeed_callbacks)
 923                 delete callback;
 924
 925         for (auto entry : _owned_devices)
 926                 delete entry.second;
 927 }
 928
 929 shared_ptr<Device> Session::get_device(const struct sr_dev_inst *sdi)
 930 {
 931         if (_owned_devices.count(sdi))
 932                 return static_pointer_cast<Device>(
 933                         _owned_devices[sdi]->get_shared_pointer(this));
 934         else if (_other_devices.count(sdi))
 935                 return _other_devices[sdi];
 936         else
 937                 throw Error(SR_ERR_BUG);
 938 }
 939
 940 void Session::add_device(shared_ptr<Device> device)
 941 {
 942         const auto dev_struct = device->_structure;
 943         check(sr_session_dev_add(_structure, dev_struct));
 944         _other_devices[dev_struct] = move(device);
 945 }
 946
 947 vector<shared_ptr<Device>> Session::devices()
 948 {
 949         GSList *dev_list;
 950         check(sr_session_dev_list(_structure, &dev_list));
 951         vector<shared_ptr<Device>> result;
 952         for (GSList *dev = dev_list; dev; dev = dev->next)
 953         {
 954                 auto sdi = (struct sr_dev_inst *) dev->data;
 955                 result.push_back(get_device(sdi));
 956         }
 957         return result;
 958 }
 959
 960 void Session::remove_devices()
 961 {
 962         _other_devices.clear();
 963         check(sr_session_dev_remove_all(_structure));
 964 }
 965
 966 void Session::start()
 967 {
 968         check(sr_session_start(_structure));
 969 }
 970
 971 void Session::run()
 972 {
 973         check(sr_session_run(_structure));
 974 }
 975
 976 void Session::stop()
 977 {
 978         check(sr_session_stop(_structure));
 979 }
 980
 981 bool Session::is_running() const
 982 {
 983         const int ret = sr_session_is_running(_structure);
 984         if (ret < 0)
 985                 throw Error{ret};
 986         return (ret != 0);
 987 }
 988
 989 static void session_stopped_callback(void *data)
 990 {
 991         auto *const callback = static_cast<SessionStoppedCallback*>(data);
 992         (*callback)();
 993 }
 994
 995 void Session::set_stopped_callback(SessionStoppedCallback callback)
 996 {
 997         _stopped_callback = move(callback);
 998         if (_stopped_callback)
 999                 check(sr_session_stopped_callback_set(_structure,
1000                                 &session_stopped_callback, &_stopped_callback));
1001         else
1002                 check(sr_session_stopped_callback_set(_structure,
1003                                 nullptr, nullptr));
1004 }
1005
1006 static void datafeed_callback(const struct sr_dev_inst *sdi,
1007         const struct sr_datafeed_packet *pkt, void *cb_data)
1008 {
1009         auto callback = static_cast<DatafeedCallbackData *>(cb_data);
1010         callback->run(sdi, pkt);
1011 }
1012
1013 void Session::add_datafeed_callback(DatafeedCallbackFunction callback)
1014 {
1015         auto cb_data = new DatafeedCallbackData(this, move(callback));
1016         check(sr_session_datafeed_callback_add(_structure,
1017                 datafeed_callback, cb_data));
1018         _datafeed_callbacks.push_back(cb_data);
1019 }
1020
1021 void Session::remove_datafeed_callbacks()
1022 {
1023         check(sr_session_datafeed_callback_remove_all(_structure));
1024         for (auto callback : _datafeed_callbacks)
1025                 delete callback;
1026         _datafeed_callbacks.clear();
1027 }
1028
1029 shared_ptr<Trigger> Session::trigger()
1030 {
1031         return _trigger;
1032 }
1033
1034 void Session::set_trigger(shared_ptr<Trigger> trigger)
1035 {
1036         if (!trigger)
1037                 // Set NULL trigger, i.e. remove any trigger from the session.
1038                 check(sr_session_trigger_set(_structure, NULL));
1039         else
1040                 check(sr_session_trigger_set(_structure, trigger->_structure));
1041         _trigger = move(trigger);
1042 }
1043
1044 string Session::filename()
1045 {
1046         return _filename;
1047 }
1048
1049 shared_ptr<Context> Session::context()
1050 {
1051         return _context;
1052 }
1053
1054 Packet::Packet(shared_ptr<Device> device,
1055         const struct sr_datafeed_packet *structure) :
1056         UserOwned(structure),
1057         _device(move(device))
1058 {
1059         switch (structure->type)
1060         {
1061                 case SR_DF_HEADER:
1062                         _payload = new Header(
1063                                 static_cast<const struct sr_datafeed_header *>(
1064                                         structure->payload));
1065                         break;
1066                 case SR_DF_META:
1067                         _payload = new Meta(
1068                                 static_cast<const struct sr_datafeed_meta *>(
1069                                         structure->payload));
1070                         break;
1071                 case SR_DF_LOGIC:
1072                         _payload = new Logic(
1073                                 static_cast<const struct sr_datafeed_logic *>(
1074                                         structure->payload));
1075                         break;
1076                 case SR_DF_ANALOG:
1077                         _payload = new Analog(
1078                                 static_cast<const struct sr_datafeed_analog *>(
1079                                         structure->payload));
1080                         break;
1081                 default:
1082                         _payload = nullptr;
1083                         break;
1084         }
1085 }
1086
1087 Packet::~Packet()
1088 {
1089         if (_payload)
1090                 delete _payload;
1091 }
1092
1093 const PacketType *Packet::type()
1094 {
1095         return PacketType::get(_structure->type);
1096 }
1097
1098 shared_ptr<PacketPayload> Packet::payload()
1099 {
1100         if (_payload)
1101                 return _payload->get_shared_pointer(this);
1102         else
1103                 throw Error(SR_ERR_NA);
1104 }
1105
1106 PacketPayload::PacketPayload()
1107 {
1108 }
1109
1110 PacketPayload::~PacketPayload()
1111 {
1112 }
1113
1114 Header::Header(const struct sr_datafeed_header *structure) :
1115         ParentOwned(structure),
1116         PacketPayload()
1117 {
1118 }
1119
1120 Header::~Header()
1121 {
1122 }
1123
1124 shared_ptr<PacketPayload> Header::get_shared_pointer(Packet *_parent)
1125 {
1126         return static_pointer_cast<PacketPayload>(
1127                 ParentOwned::get_shared_pointer(_parent));
1128 }
1129
1130 int Header::feed_version()
1131 {
1132         return _structure->feed_version;
1133 }
1134
1135 Glib::TimeVal Header::start_time()
1136 {
1137         return Glib::TimeVal(
1138                 _structure->starttime.tv_sec,
1139                 _structure->starttime.tv_usec);
1140 }
1141
1142 Meta::Meta(const struct sr_datafeed_meta *structure) :
1143         ParentOwned(structure),
1144         PacketPayload()
1145 {
1146 }
1147
1148 Meta::~Meta()
1149 {
1150 }
1151
1152 shared_ptr<PacketPayload> Meta::get_shared_pointer(Packet *_parent)
1153 {
1154         return static_pointer_cast<PacketPayload>(
1155                 ParentOwned::get_shared_pointer(_parent));
1156 }
1157
1158 map<const ConfigKey *, Glib::VariantBase> Meta::config()
1159 {
1160         map<const ConfigKey *, Glib::VariantBase> result;
1161         for (auto l = _structure->config; l; l = l->next)
1162         {
1163                 auto config = (struct sr_config *) l->data;
1164                 result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data);
1165         }
1166         return result;
1167 }
1168
1169 Logic::Logic(const struct sr_datafeed_logic *structure) :
1170         ParentOwned(structure),
1171         PacketPayload()
1172 {
1173 }
1174
1175 Logic::~Logic()
1176 {
1177 }
1178
1179 shared_ptr<PacketPayload> Logic::get_shared_pointer(Packet *_parent)
1180 {
1181         return static_pointer_cast<PacketPayload>(
1182                 ParentOwned::get_shared_pointer(_parent));
1183 }
1184
1185 void *Logic::data_pointer()
1186 {
1187         return _structure->data;
1188 }
1189
1190 size_t Logic::data_length()
1191 {
1192         return _structure->length;
1193 }
1194
1195 unsigned int Logic::unit_size()
1196 {
1197         return _structure->unitsize;
1198 }
1199
1200 Analog::Analog(const struct sr_datafeed_analog *structure) :
1201         ParentOwned(structure),
1202         PacketPayload()
1203 {
1204 }
1205
1206 Analog::~Analog()
1207 {
1208 }
1209
1210 shared_ptr<PacketPayload> Analog::get_shared_pointer(Packet *_parent)
1211 {
1212         return static_pointer_cast<PacketPayload>(
1213                 ParentOwned::get_shared_pointer(_parent));
1214 }
1215
1216 void *Analog::data_pointer()
1217 {
1218         return _structure->data;
1219 }
1220
1221 unsigned int Analog::num_samples()
1222 {
1223         return _structure->num_samples;
1224 }
1225
1226 vector<shared_ptr<Channel>> Analog::channels()
1227 {
1228         vector<shared_ptr<Channel>> result;
1229         for (auto l = _structure->meaning->channels; l; l = l->next)
1230                 result.push_back(_parent->_device->get_channel(
1231                         (struct sr_channel *)l->data));
1232         return result;
1233 }
1234
1235 const Quantity *Analog::mq()
1236 {
1237         return Quantity::get(_structure->meaning->mq);
1238 }
1239
1240 const Unit *Analog::unit()
1241 {
1242         return Unit::get(_structure->meaning->unit);
1243 }
1244
1245 vector<const QuantityFlag *> Analog::mq_flags()
1246 {
1247         return QuantityFlag::flags_from_mask(_structure->meaning->mqflags);
1248 }
1249
1250 InputFormat::InputFormat(const struct sr_input_module *structure) :
1251         ParentOwned(structure)
1252 {
1253 }
1254
1255 InputFormat::~InputFormat()
1256 {
1257 }
1258
1259 string InputFormat::name()
1260 {
1261         return valid_string(sr_input_id_get(_structure));
1262 }
1263
1264 string InputFormat::description()
1265 {
1266         return valid_string(sr_input_description_get(_structure));
1267 }
1268
1269 vector<string> InputFormat::extensions()
1270 {
1271         vector<string> exts;
1272         for (const char *const *e = sr_input_extensions_get(_structure);
1273                 e && *e; e++)
1274                 exts.push_back(*e);
1275         return exts;
1276 }
1277
1278 map<string, shared_ptr<Option>> InputFormat::options()
1279 {
1280         const struct sr_option **options = sr_input_options_get(_structure);
1281         map<string, shared_ptr<Option>> result;
1282         if (options)
1283         {
1284                 auto option_array = shared_ptr<const struct sr_option *>(
1285                         options, sr_input_options_free);
1286                 for (int i = 0; options[i]; i++)
1287                         result[options[i]->id] = shared_ptr<Option>(
1288                                 new Option(options[i], option_array), Option::Deleter());
1289         }
1290         return result;
1291 }
1292
1293 shared_ptr<Input> InputFormat::create_input(
1294         const map<string, Glib::VariantBase> &options)
1295 {
1296         auto input = sr_input_new(_structure, map_to_hash_variant(options));
1297         if (!input)
1298                 throw Error(SR_ERR_ARG);
1299         return shared_ptr<Input>(
1300                 new Input(_parent->shared_from_this(), input), Input::Deleter());
1301 }
1302
1303 Input::Input(shared_ptr<Context> context, const struct sr_input *structure) :
1304         UserOwned(structure),
1305         _context(move(context)),
1306         _device(nullptr)
1307 {
1308 }
1309
1310 shared_ptr<InputDevice> Input::device()
1311 {
1312         if (!_device)
1313         {
1314                 auto sdi = sr_input_dev_inst_get(_structure);
1315                 if (!sdi)
1316                         throw Error(SR_ERR_NA);
1317                 _device = new InputDevice(shared_from_this(), sdi);
1318         }
1319
1320         return _device->get_shared_pointer(shared_from_this());
1321 }
1322
1323 void Input::send(void *data, size_t length)
1324 {
1325         auto gstr = g_string_new_len((gchar *)data, length);
1326         auto ret = sr_input_send(_structure, gstr);
1327         g_string_free(gstr, false);
1328         check(ret);
1329 }
1330
1331 void Input::end()
1332 {
1333         check(sr_input_end(_structure));
1334 }
1335
1336 Input::~Input()
1337 {
1338         if (_device)
1339                 delete _device;
1340         sr_input_free(_structure);
1341 }
1342
1343 InputDevice::InputDevice(shared_ptr<Input> input,
1344                 struct sr_dev_inst *structure) :
1345         ParentOwned(structure),
1346         Device(structure),
1347         _input(move(input))
1348 {
1349 }
1350
1351 InputDevice::~InputDevice()
1352 {
1353 }
1354
1355 shared_ptr<Device> InputDevice::get_shared_from_this()
1356 {
1357         return static_pointer_cast<Device>(shared_from_this());
1358 }
1359
1360 Option::Option(const struct sr_option *structure,
1361                 shared_ptr<const struct sr_option *> structure_array) :
1362         UserOwned(structure),
1363         _structure_array(move(structure_array))
1364 {
1365 }
1366
1367 Option::~Option()
1368 {
1369 }
1370
1371 string Option::id()
1372 {
1373         return valid_string(_structure->id);
1374 }
1375
1376 string Option::name()
1377 {
1378         return valid_string(_structure->name);
1379 }
1380
1381 string Option::description()
1382 {
1383         return valid_string(_structure->desc);
1384 }
1385
1386 Glib::VariantBase Option::default_value()
1387 {
1388         return Glib::VariantBase(_structure->def, true);
1389 }
1390
1391 vector<Glib::VariantBase> Option::values()
1392 {
1393         vector<Glib::VariantBase> result;
1394         for (auto l = _structure->values; l; l = l->next)
1395                 result.push_back(Glib::VariantBase((GVariant *) l->data, true));
1396         return result;
1397 }
1398
1399 OutputFormat::OutputFormat(const struct sr_output_module *structure) :
1400         ParentOwned(structure)
1401 {
1402 }
1403
1404 OutputFormat::~OutputFormat()
1405 {
1406 }
1407
1408 string OutputFormat::name()
1409 {
1410         return valid_string(sr_output_id_get(_structure));
1411 }
1412
1413 string OutputFormat::description()
1414 {
1415         return valid_string(sr_output_description_get(_structure));
1416 }
1417
1418 vector<string> OutputFormat::extensions()
1419 {
1420         vector<string> exts;
1421         for (const char *const *e = sr_output_extensions_get(_structure);
1422                 e && *e; e++)
1423                 exts.push_back(*e);
1424         return exts;
1425 }
1426
1427 map<string, shared_ptr<Option>> OutputFormat::options()
1428 {
1429         const struct sr_option **options = sr_output_options_get(_structure);
1430         map<string, shared_ptr<Option>> result;
1431         if (options)
1432         {
1433                 auto option_array = shared_ptr<const struct sr_option *>(
1434                         options, sr_output_options_free);
1435                 for (int i = 0; options[i]; i++)
1436                         result[options[i]->id] = shared_ptr<Option>(
1437                                 new Option(options[i], option_array), Option::Deleter());
1438         }
1439         return result;
1440 }
1441
1442 shared_ptr<Output> OutputFormat::create_output(
1443         shared_ptr<Device> device, const map<string, Glib::VariantBase> &options)
1444 {
1445         return shared_ptr<Output>(
1446                 new Output(shared_from_this(), move(device), options),
1447                 Output::Deleter());
1448 }
1449
1450 shared_ptr<Output> OutputFormat::create_output(string filename,
1451         shared_ptr<Device> device, const map<string, Glib::VariantBase> &options)
1452 {
1453         return shared_ptr<Output>(
1454                 new Output(move(filename), shared_from_this(), move(device), options),
1455                 Output::Deleter());
1456 }
1457
1458 bool OutputFormat::test_flag(const OutputFlag *flag)
1459 {
1460         return sr_output_test_flag(_structure, flag->id());
1461 }
1462
1463 Output::Output(shared_ptr<OutputFormat> format,
1464                 shared_ptr<Device> device, const map<string, Glib::VariantBase> &options) :
1465         UserOwned(sr_output_new(format->_structure,
1466                 map_to_hash_variant(options), device->_structure, NULL)),
1467         _format(move(format)),
1468         _device(move(device)),
1469         _options(options)
1470 {
1471 }
1472
1473 Output::Output(string filename, shared_ptr<OutputFormat> format,
1474                 shared_ptr<Device> device, const map<string, Glib::VariantBase> &options) :
1475         UserOwned(sr_output_new(format->_structure,
1476                 map_to_hash_variant(options), device->_structure, filename.c_str())),
1477         _format(move(format)),
1478         _device(move(device)),
1479         _options(options)
1480 {
1481 }
1482
1483 Output::~Output()
1484 {
1485         check(sr_output_free(_structure));
1486 }
1487
1488 string Output::receive(shared_ptr<Packet> packet)
1489 {
1490         GString *out;
1491         check(sr_output_send(_structure, packet->_structure, &out));
1492         if (out)
1493         {
1494                 auto result = string(out->str, out->str + out->len);
1495                 g_string_free(out, true);
1496                 return result;
1497         }
1498         else
1499         {
1500                 return string();
1501         }
1502 }
1503
1504 #include <enums.cpp>
1505
1506 }