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(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 shared_ptr<Context> Context::create()
  76 {
  77         return shared_ptr<Context>(new Context(), Context::Deleter());
  78 }
  79
  80 Context::Context() :
  81         UserOwned(_structure),
  82         _session(NULL)
  83 {
  84         check(sr_init(&_structure));
  85
  86         struct sr_dev_driver **driver_list = sr_driver_list(_structure);
  87         if (driver_list)
  88                 for (int i = 0; driver_list[i]; i++)
  89                         _drivers[driver_list[i]->name] =
  90                                 new Driver(driver_list[i]);
  91         const struct sr_input_module **input_list = sr_input_list();
  92         if (input_list)
  93                 for (int i = 0; input_list[i]; i++)
  94                         _input_formats[sr_input_id_get(input_list[i])] =
  95                                 new InputFormat(input_list[i]);
  96         const struct sr_output_module **output_list = sr_output_list();
  97         if (output_list)
  98                 for (int i = 0; output_list[i]; i++)
  99                         _output_formats[sr_output_id_get(output_list[i])] =
 100                                 new OutputFormat(output_list[i]);
 101 }
 102
 103 string Context::package_version()
 104 {
 105         return sr_package_version_string_get();
 106 }
 107
 108 string Context::lib_version()
 109 {
 110         return sr_lib_version_string_get();
 111 }
 112
 113 map<string, shared_ptr<Driver>> Context::drivers()
 114 {
 115         map<string, shared_ptr<Driver>> result;
 116         for (auto entry: _drivers)
 117         {
 118                 auto name = entry.first;
 119                 auto driver = entry.second;
 120                 result[name] = driver->get_shared_pointer(this);
 121         }
 122         return result;
 123 }
 124
 125 map<string, shared_ptr<InputFormat>> Context::input_formats()
 126 {
 127         map<string, shared_ptr<InputFormat>> result;
 128         for (auto entry: _input_formats)
 129         {
 130                 auto name = entry.first;
 131                 auto input_format = entry.second;
 132                 result[name] = input_format->get_shared_pointer(this);
 133         }
 134         return result;
 135 }
 136
 137 map<string, shared_ptr<OutputFormat>> Context::output_formats()
 138 {
 139         map<string, shared_ptr<OutputFormat>> result;
 140         for (auto entry: _output_formats)
 141         {
 142                 auto name = entry.first;
 143                 auto output_format = entry.second;
 144                 result[name] = output_format->get_shared_pointer(this);
 145         }
 146         return result;
 147 }
 148
 149 Context::~Context()
 150 {
 151         for (auto entry : _drivers)
 152                 delete entry.second;
 153         for (auto entry : _input_formats)
 154                 delete entry.second;
 155         for (auto entry : _output_formats)
 156                 delete entry.second;
 157         check(sr_exit(_structure));
 158 }
 159
 160 const LogLevel *Context::log_level()
 161 {
 162         return LogLevel::get(sr_log_loglevel_get());
 163 }
 164
 165 void Context::set_log_level(const LogLevel *level)
 166 {
 167         check(sr_log_loglevel_set(level->id()));
 168 }
 169
 170 static int call_log_callback(void *cb_data, int loglevel, const char *format, va_list args)
 171 {
 172         va_list args_copy;
 173         va_copy(args_copy, args);
 174         int length = vsnprintf(NULL, 0, format, args_copy);
 175         va_end(args_copy);
 176         char *buf = (char *) g_malloc(length + 1);
 177         vsprintf(buf, format, args);
 178         string message(buf, length);
 179         g_free(buf);
 180
 181         LogCallbackFunction callback = *((LogCallbackFunction *) cb_data);
 182
 183         try
 184         {
 185                 callback(LogLevel::get(loglevel), message);
 186         }
 187         catch (Error e)
 188         {
 189                 return e.result;
 190         }
 191
 192         return SR_OK;
 193 }
 194
 195 void Context::set_log_callback(LogCallbackFunction callback)
 196 {
 197         _log_callback = callback;
 198         check(sr_log_callback_set(call_log_callback, &_log_callback));
 199 }
 200
 201 void Context::set_log_callback_default()
 202 {
 203         check(sr_log_callback_set_default());
 204         _log_callback = nullptr;
 205 }
 206
 207 shared_ptr<Session> Context::create_session()
 208 {
 209         return shared_ptr<Session>(
 210                 new Session(shared_from_this()), Session::Deleter());
 211 }
 212
 213 shared_ptr<UserDevice> Context::create_user_device(
 214                 string vendor, string model, string version)
 215 {
 216         return shared_ptr<UserDevice>(
 217                 new UserDevice(vendor, model, version), UserDevice::Deleter());
 218 }
 219
 220 shared_ptr<Packet> Context::create_header_packet(Glib::TimeVal start_time)
 221 {
 222         auto header = g_new(struct sr_datafeed_header, 1);
 223         header->feed_version = 1;
 224         header->starttime.tv_sec = start_time.tv_sec;
 225         header->starttime.tv_usec = start_time.tv_usec;
 226         auto packet = g_new(struct sr_datafeed_packet, 1);
 227         packet->type = SR_DF_HEADER;
 228         packet->payload = header;
 229         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 230 }
 231
 232 shared_ptr<Packet> Context::create_meta_packet(
 233         map<const ConfigKey *, Glib::VariantBase> config)
 234 {
 235         auto meta = g_new0(struct sr_datafeed_meta, 1);
 236         for (auto input : config)
 237         {
 238                 auto key = input.first;
 239                 auto value = input.second;
 240                 auto output = g_new(struct sr_config, 1);
 241                 output->key = key->id();
 242                 output->data = value.gobj();
 243                 g_variant_ref(output->data);
 244                 meta->config = g_slist_append(meta->config, output);
 245         }
 246         auto packet = g_new(struct sr_datafeed_packet, 1);
 247         packet->type = SR_DF_META;
 248         packet->payload = meta;
 249         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 250 }
 251
 252 shared_ptr<Packet> Context::create_logic_packet(
 253         void *data_pointer, size_t data_length, unsigned int unit_size)
 254 {
 255         auto logic = g_new(struct sr_datafeed_logic, 1);
 256         logic->length = data_length;
 257         logic->unitsize = unit_size;
 258         logic->data = data_pointer;
 259         auto packet = g_new(struct sr_datafeed_packet, 1);
 260         packet->type = SR_DF_LOGIC;
 261         packet->payload = logic;
 262         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 263 }
 264
 265 shared_ptr<Packet> Context::create_analog_packet(
 266         vector<shared_ptr<Channel> > channels,
 267         float *data_pointer, unsigned int num_samples, const Quantity *mq,
 268         const Unit *unit, vector<const QuantityFlag *> mqflags)
 269 {
 270         auto analog = g_new0(struct sr_datafeed_analog, 1);
 271         for (auto channel : channels)
 272                 analog->channels = g_slist_append(analog->channels, channel->_structure);
 273         analog->num_samples = num_samples;
 274         analog->mq = mq->id();
 275         analog->unit = unit->id();
 276         analog->mqflags = QuantityFlag::mask_from_flags(mqflags);
 277         analog->data = data_pointer;
 278         auto packet = g_new(struct sr_datafeed_packet, 1);
 279         packet->type = SR_DF_ANALOG;
 280         packet->payload = analog;
 281         return shared_ptr<Packet>(new Packet(nullptr, packet), Packet::Deleter());
 282 }
 283
 284 shared_ptr<Session> Context::load_session(string filename)
 285 {
 286         return shared_ptr<Session>(
 287                 new Session(shared_from_this(), filename), Session::Deleter());
 288 }
 289
 290 shared_ptr<Trigger> Context::create_trigger(string name)
 291 {
 292         return shared_ptr<Trigger>(
 293                 new Trigger(shared_from_this(), name), Trigger::Deleter());
 294 }
 295
 296 shared_ptr<Input> Context::open_file(string filename)
 297 {
 298         const struct sr_input *input;
 299
 300         check(sr_input_scan_file(filename.c_str(), &input));
 301         return shared_ptr<Input>(
 302                 new Input(shared_from_this(), input), Input::Deleter());
 303 }
 304
 305 shared_ptr<Input> Context::open_stream(string header)
 306 {
 307         const struct sr_input *input;
 308
 309         auto gstr = g_string_new(header.c_str());
 310         auto ret = sr_input_scan_buffer(gstr, &input);
 311         g_string_free(gstr, true);
 312         check(ret);
 313         return shared_ptr<Input>(
 314                 new Input(shared_from_this(), input), Input::Deleter());
 315 }
 316
 317 map<string, string> Context::serials(shared_ptr<Driver> driver)
 318 {
 319         GSList *serial_list = sr_serial_list(driver ? driver->_structure : NULL);
 320         map<string, string> serials;
 321
 322         for (GSList *serial = serial_list; serial; serial = serial->next) {
 323                 struct sr_serial_port *port = (sr_serial_port *) serial->data;
 324                 serials[string(port->name)] = string(port->description);
 325         }
 326
 327         g_slist_free_full(serial_list, (GDestroyNotify)sr_serial_free);
 328         return serials;
 329 }
 330
 331 Driver::Driver(struct sr_dev_driver *structure) :
 332         ParentOwned(structure),
 333         Configurable(structure, NULL, NULL),
 334         _initialized(false)
 335 {
 336 }
 337
 338 Driver::~Driver()
 339 {
 340 }
 341
 342 string Driver::name()
 343 {
 344         return valid_string(_structure->name);
 345 }
 346
 347 string Driver::long_name()
 348 {
 349         return valid_string(_structure->longname);
 350 }
 351
 352 vector<shared_ptr<HardwareDevice>> Driver::scan(
 353         map<const ConfigKey *, Glib::VariantBase> options)
 354 {
 355         /* Initialise the driver if not yet done. */
 356         if (!_initialized)
 357         {
 358                 check(sr_driver_init(_parent->_structure, _structure));
 359                 _initialized = true;
 360         }
 361
 362         /* Translate scan options to GSList of struct sr_config pointers. */
 363         GSList *option_list = NULL;
 364         for (auto entry : options)
 365         {
 366                 auto key = entry.first;
 367                 auto value = entry.second;
 368                 auto config = g_new(struct sr_config, 1);
 369                 config->key = key->id();
 370                 config->data = value.gobj();
 371                 option_list = g_slist_append(option_list, config);
 372         }
 373
 374         /* Run scan. */
 375         GSList *device_list = sr_driver_scan(_structure, option_list);
 376
 377         /* Free option list. */
 378         g_slist_free_full(option_list, g_free);
 379
 380
 381         /* Create device objects. */
 382         vector<shared_ptr<HardwareDevice>> result;
 383         for (GSList *device = device_list; device; device = device->next)
 384         {
 385                 auto sdi = (struct sr_dev_inst *) device->data;
 386                 result.push_back(shared_ptr<HardwareDevice>(
 387                         new HardwareDevice(shared_from_this(), sdi),
 388                         HardwareDevice::Deleter()));
 389         }
 390
 391         /* Free GSList returned from scan. */
 392         g_slist_free(device_list);
 393
 394         return result;
 395 }
 396
 397 Configurable::Configurable(
 398                 struct sr_dev_driver *driver,
 399                 struct sr_dev_inst *sdi,
 400                 struct sr_channel_group *cg) :
 401         config_driver(driver),
 402         config_sdi(sdi),
 403         config_channel_group(cg)
 404 {
 405 }
 406
 407 Configurable::~Configurable()
 408 {
 409 }
 410
 411 Glib::VariantBase Configurable::config_get(const ConfigKey *key)
 412 {
 413         GVariant *data;
 414         check(sr_config_get(
 415                 config_driver, config_sdi, config_channel_group,
 416                 key->id(), &data));
 417         return Glib::VariantBase(data);
 418 }
 419
 420 void Configurable::config_set(const ConfigKey *key, Glib::VariantBase value)
 421 {
 422         check(sr_config_set(
 423                 config_sdi, config_channel_group,
 424                 key->id(), value.gobj()));
 425 }
 426
 427 Glib::VariantContainerBase Configurable::config_list(const ConfigKey *key)
 428 {
 429         GVariant *data;
 430         check(sr_config_list(
 431                 config_driver, config_sdi, config_channel_group,
 432                 key->id(), &data));
 433         return Glib::VariantContainerBase(data);
 434 }
 435
 436 map<const ConfigKey *, set<Capability>> Configurable::config_keys(const ConfigKey *key)
 437 {
 438         GVariant *gvar_opts;
 439         gsize num_opts;
 440         const uint32_t *opts;
 441         map<const ConfigKey *, set<Capability>> result;
 442
 443         check(sr_config_list(
 444                 config_driver, config_sdi, config_channel_group,
 445                 key->id(), &gvar_opts));
 446
 447         opts = (const uint32_t *) g_variant_get_fixed_array(
 448                 gvar_opts, &num_opts, sizeof(uint32_t));
 449
 450         for (gsize i = 0; i < num_opts; i++)
 451         {
 452                 auto key = ConfigKey::get(opts[i] & SR_CONF_MASK);
 453                 set<Capability> capabilities;
 454                 if (opts[i] & SR_CONF_GET)
 455                         capabilities.insert(GET);
 456                 if (opts[i] & SR_CONF_SET)
 457                         capabilities.insert(SET);
 458                 if (opts[i] & SR_CONF_LIST)
 459                         capabilities.insert(LIST);
 460                 result[key] = capabilities;
 461         }
 462
 463         g_variant_unref(gvar_opts);
 464
 465         return result;
 466 }
 467
 468 bool Configurable::config_check(const ConfigKey *key,
 469         const ConfigKey *index_key)
 470 {
 471         GVariant *gvar_opts;
 472         gsize num_opts;
 473         const uint32_t *opts;
 474
 475         if (sr_config_list(config_driver, config_sdi, config_channel_group,
 476                         index_key->id(), &gvar_opts) != SR_OK)
 477                 return false;
 478
 479         opts = (const uint32_t *) g_variant_get_fixed_array(
 480                 gvar_opts, &num_opts, sizeof(uint32_t));
 481
 482         for (gsize i = 0; i < num_opts; i++)
 483         {
 484                 if ((opts[i] & SR_CONF_MASK) == (uint32_t) key->id())
 485                 {
 486                         g_variant_unref(gvar_opts);
 487                         return true;
 488                 }
 489         }
 490
 491         g_variant_unref(gvar_opts);
 492
 493         return false;
 494 }
 495
 496 Device::Device(struct sr_dev_inst *structure) :
 497         Configurable(sr_dev_inst_driver_get(structure), structure, NULL),
 498         _structure(structure)
 499 {
 500         for (GSList *entry = sr_dev_inst_channels_get(structure); entry; entry = entry->next)
 501         {
 502                 auto channel = (struct sr_channel *) entry->data;
 503                 _channels[channel] = new Channel(channel);
 504         }
 505
 506         for (GSList *entry = sr_dev_inst_channel_groups_get(structure); entry; entry = entry->next)
 507         {
 508                 auto group = (struct sr_channel_group *) entry->data;
 509                 _channel_groups[group->name] = new ChannelGroup(this, group);
 510         }
 511 }
 512
 513 Device::~Device()
 514 {
 515         for (auto entry : _channels)
 516                 delete entry.second;
 517         for (auto entry : _channel_groups)
 518                 delete entry.second;
 519 }
 520
 521 string Device::vendor()
 522 {
 523         return valid_string(sr_dev_inst_vendor_get(_structure));
 524 }
 525
 526 string Device::model()
 527 {
 528         return valid_string(sr_dev_inst_model_get(_structure));
 529 }
 530
 531 string Device::version()
 532 {
 533         return valid_string(sr_dev_inst_version_get(_structure));
 534 }
 535
 536 string Device::serial_number()
 537 {
 538         return valid_string(sr_dev_inst_sernum_get(_structure));
 539 }
 540
 541 string Device::connection_id()
 542 {
 543         return valid_string(sr_dev_inst_connid_get(_structure));
 544 }
 545
 546 vector<shared_ptr<Channel>> Device::channels()
 547 {
 548         vector<shared_ptr<Channel>> result;
 549         for (auto channel = sr_dev_inst_channels_get(_structure); channel; channel = channel->next)
 550                 result.push_back(
 551                         _channels[(struct sr_channel *) channel->data]->get_shared_pointer(
 552                                 get_shared_from_this()));
 553         return result;
 554 }
 555
 556 shared_ptr<Channel> Device::get_channel(struct sr_channel *ptr)
 557 {
 558         return _channels[ptr]->get_shared_pointer(get_shared_from_this());
 559 }
 560
 561 map<string, shared_ptr<ChannelGroup>>
 562 Device::channel_groups()
 563 {
 564         map<string, shared_ptr<ChannelGroup>> result;
 565         for (auto entry: _channel_groups)
 566         {
 567                 auto name = entry.first;
 568                 auto channel_group = entry.second;
 569                 result[name] = channel_group->get_shared_pointer(get_shared_from_this());
 570         }
 571         return result;
 572 }
 573
 574 void Device::open()
 575 {
 576         check(sr_dev_open(_structure));
 577 }
 578
 579 void Device::close()
 580 {
 581         check(sr_dev_close(_structure));
 582 }
 583
 584 HardwareDevice::HardwareDevice(shared_ptr<Driver> driver,
 585                 struct sr_dev_inst *structure) :
 586         UserOwned(structure),
 587         Device(structure),
 588         _driver(driver)
 589 {
 590 }
 591
 592 HardwareDevice::~HardwareDevice()
 593 {
 594 }
 595
 596 shared_ptr<Device> HardwareDevice::get_shared_from_this()
 597 {
 598         return static_pointer_cast<Device>(shared_from_this());
 599 }
 600
 601 shared_ptr<Driver> HardwareDevice::driver()
 602 {
 603         return _driver;
 604 }
 605
 606 UserDevice::UserDevice(string vendor, string model, string version) :
 607         UserOwned(sr_dev_inst_user_new(
 608                 vendor.c_str(), model.c_str(), version.c_str())),
 609         Device(UserOwned::_structure)
 610 {
 611 }
 612
 613 UserDevice::~UserDevice()
 614 {
 615 }
 616
 617 shared_ptr<Device> UserDevice::get_shared_from_this()
 618 {
 619         return static_pointer_cast<Device>(shared_from_this());
 620 }
 621
 622 shared_ptr<Channel> UserDevice::add_channel(unsigned int index,
 623         const ChannelType *type, string name)
 624 {
 625         check(sr_dev_inst_channel_add(Device::_structure,
 626                 index, type->id(), name.c_str()));
 627         struct sr_channel *structure = (struct sr_channel *)
 628                         g_slist_last(sr_dev_inst_channels_get(Device::_structure))->data;
 629         Channel *channel = new Channel(structure);
 630         _channels[structure] = channel;
 631         return get_channel(structure);
 632 }
 633
 634 Channel::Channel(struct sr_channel *structure) :
 635         ParentOwned(structure),
 636         _type(ChannelType::get(_structure->type))
 637 {
 638 }
 639
 640 Channel::~Channel()
 641 {
 642 }
 643
 644 string Channel::name()
 645 {
 646         return valid_string(_structure->name);
 647 }
 648
 649 void Channel::set_name(string name)
 650 {
 651         check(sr_dev_channel_name_set(_structure, name.c_str()));
 652 }
 653
 654 const ChannelType *Channel::type()
 655 {
 656         return ChannelType::get(_structure->type);
 657 }
 658
 659 bool Channel::enabled()
 660 {
 661         return _structure->enabled;
 662 }
 663
 664 void Channel::set_enabled(bool value)
 665 {
 666         check(sr_dev_channel_enable(_structure, value));
 667 }
 668
 669 unsigned int Channel::index()
 670 {
 671         return _structure->index;
 672 }
 673
 674 ChannelGroup::ChannelGroup(Device *device,
 675                 struct sr_channel_group *structure) :
 676         ParentOwned(structure),
 677         Configurable(sr_dev_inst_driver_get(device->_structure), device->_structure, structure)
 678 {
 679         for (GSList *entry = structure->channels; entry; entry = entry->next)
 680                 _channels.push_back(device->_channels[(struct sr_channel *)entry->data]);
 681 }
 682
 683 ChannelGroup::~ChannelGroup()
 684 {
 685 }
 686
 687 string ChannelGroup::name()
 688 {
 689         return valid_string(_structure->name);
 690 }
 691
 692 vector<shared_ptr<Channel>> ChannelGroup::channels()
 693 {
 694         vector<shared_ptr<Channel>> result;
 695         for (auto channel : _channels)
 696                 result.push_back(channel->get_shared_pointer(_parent));
 697         return result;
 698 }
 699
 700 Trigger::Trigger(shared_ptr<Context> context, string name) :
 701         UserOwned(sr_trigger_new(name.c_str())),
 702         _context(context)
 703 {
 704         for (auto stage = _structure->stages; stage; stage = stage->next)
 705                 _stages.push_back(
 706                         new TriggerStage((struct sr_trigger_stage *) stage->data));
 707 }
 708
 709 Trigger::~Trigger()
 710 {
 711         for (auto stage: _stages)
 712                 delete stage;
 713
 714         sr_trigger_free(_structure);
 715 }
 716
 717 string Trigger::name()
 718 {
 719         return _structure->name;
 720 }
 721
 722 vector<shared_ptr<TriggerStage>> Trigger::stages()
 723 {
 724         vector<shared_ptr<TriggerStage>> result;
 725         for (auto stage : _stages)
 726                 result.push_back(stage->get_shared_pointer(this));
 727         return result;
 728 }
 729
 730 shared_ptr<TriggerStage> Trigger::add_stage()
 731 {
 732         auto stage = new TriggerStage(sr_trigger_stage_add(_structure));
 733         _stages.push_back(stage);
 734         return stage->get_shared_pointer(this);
 735 }
 736
 737 TriggerStage::TriggerStage(struct sr_trigger_stage *structure) :
 738         ParentOwned(structure)
 739 {
 740 }
 741
 742 TriggerStage::~TriggerStage()
 743 {
 744         for (auto match : _matches)
 745                 delete match;
 746 }
 747
 748 int TriggerStage::number()
 749 {
 750         return _structure->stage;
 751 }
 752
 753 vector<shared_ptr<TriggerMatch>> TriggerStage::matches()
 754 {
 755         vector<shared_ptr<TriggerMatch>> result;
 756         for (auto match : _matches)
 757                 result.push_back(match->get_shared_pointer(this));
 758         return result;
 759 }
 760
 761 void TriggerStage::add_match(shared_ptr<Channel> channel,
 762         const TriggerMatchType *type, float value)
 763 {
 764         check(sr_trigger_match_add(_structure,
 765                 channel->_structure, type->id(), value));
 766         _matches.push_back(new TriggerMatch(
 767                 (struct sr_trigger_match *) g_slist_last(
 768                         _structure->matches)->data, channel));
 769 }
 770
 771 void TriggerStage::add_match(shared_ptr<Channel> channel,
 772         const TriggerMatchType *type)
 773 {
 774         add_match(channel, type, NAN);
 775 }
 776
 777 TriggerMatch::TriggerMatch(struct sr_trigger_match *structure,
 778                 shared_ptr<Channel> channel) :
 779         ParentOwned(structure),
 780         _channel(channel)
 781 {
 782 }
 783
 784 TriggerMatch::~TriggerMatch()
 785 {
 786 }
 787
 788 shared_ptr<Channel> TriggerMatch::channel()
 789 {
 790         return _channel;
 791 }
 792
 793 const TriggerMatchType *TriggerMatch::type()
 794 {
 795         return TriggerMatchType::get(_structure->match);
 796 }
 797
 798 float TriggerMatch::value()
 799 {
 800         return _structure->value;
 801 }
 802
 803 DatafeedCallbackData::DatafeedCallbackData(Session *session,
 804                 DatafeedCallbackFunction callback) :
 805         _callback(callback),
 806         _session(session)
 807 {
 808 }
 809
 810 void DatafeedCallbackData::run(const struct sr_dev_inst *sdi,
 811         const struct sr_datafeed_packet *pkt)
 812 {
 813         auto device = _session->get_device(sdi);
 814         auto packet = shared_ptr<Packet>(new Packet(device, pkt), Packet::Deleter());
 815         _callback(device, packet);
 816 }
 817
 818 SourceCallbackData::SourceCallbackData(shared_ptr<EventSource> source) :
 819         _source(source)
 820 {
 821 }
 822
 823 bool SourceCallbackData::run(int revents)
 824 {
 825         return _source->_callback((Glib::IOCondition) revents);
 826 }
 827
 828 shared_ptr<EventSource> EventSource::create(int fd, Glib::IOCondition events,
 829         int timeout, SourceCallbackFunction callback)
 830 {
 831         auto result = new EventSource(timeout, callback);
 832         result->_type = EventSource::SOURCE_FD;
 833         result->_fd = fd;
 834         result->_events = events;
 835         return shared_ptr<EventSource>(result, EventSource::Deleter());
 836 }
 837
 838 shared_ptr<EventSource> EventSource::create(Glib::PollFD pollfd, int timeout,
 839         SourceCallbackFunction callback)
 840 {
 841         auto result = new EventSource(timeout, callback);
 842         result->_type = EventSource::SOURCE_POLLFD;
 843         result->_pollfd = pollfd;
 844         return shared_ptr<EventSource>(result, EventSource::Deleter());
 845 }
 846
 847 shared_ptr<EventSource> EventSource::create(Glib::RefPtr<Glib::IOChannel> channel,
 848         Glib::IOCondition events, int timeout, SourceCallbackFunction callback)
 849 {
 850         auto result = new EventSource(timeout, callback);
 851         result->_type = EventSource::SOURCE_IOCHANNEL;
 852         result->_channel = channel;
 853         result->_events = events;
 854         return shared_ptr<EventSource>(result, EventSource::Deleter());
 855 }
 856
 857 EventSource::EventSource(int timeout, SourceCallbackFunction callback) :
 858         _timeout(timeout),
 859         _callback(callback)
 860 {
 861 }
 862
 863 EventSource::~EventSource()
 864 {
 865 }
 866
 867 SessionDevice::SessionDevice(struct sr_dev_inst *structure) :
 868         ParentOwned(structure),
 869         Device(structure)
 870 {
 871 }
 872
 873 SessionDevice::~SessionDevice()
 874 {
 875 }
 876
 877 shared_ptr<Device> SessionDevice::get_shared_from_this()
 878 {
 879         return static_pointer_cast<Device>(shared_from_this());
 880 }
 881
 882 Session::Session(shared_ptr<Context> context) :
 883         UserOwned(_structure),
 884         _context(context)
 885 {
 886         check(sr_session_new(context->_structure, &_structure));
 887         _context->_session = this;
 888 }
 889
 890 Session::Session(shared_ptr<Context> context, string filename) :
 891         UserOwned(_structure),
 892         _context(context),
 893         _filename(filename)
 894 {
 895         check(sr_session_load(context->_structure, filename.c_str(), &_structure));
 896         GSList *dev_list;
 897         check(sr_session_dev_list(_structure, &dev_list));
 898         for (GSList *dev = dev_list; dev; dev = dev->next)
 899         {
 900                 auto sdi = (struct sr_dev_inst *) dev->data;
 901                 _owned_devices[sdi] = new SessionDevice(sdi);
 902         }
 903         _context->_session = this;
 904 }
 905
 906 Session::~Session()
 907 {
 908         check(sr_session_destroy(_structure));
 909
 910         for (auto callback : _datafeed_callbacks)
 911                 delete callback;
 912
 913         for (auto entry : _source_callbacks)
 914                 delete entry.second;
 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         check(sr_session_dev_add(_structure, device->_structure));
 934         _other_devices[device->_structure] = device;
 935 }
 936
 937 vector<shared_ptr<Device>> Session::devices()
 938 {
 939         GSList *dev_list;
 940         check(sr_session_dev_list(_structure, &dev_list));
 941         vector<shared_ptr<Device>> result;
 942         for (GSList *dev = dev_list; dev; dev = dev->next)
 943         {
 944                 auto sdi = (struct sr_dev_inst *) dev->data;
 945                 result.push_back(get_device(sdi));
 946         }
 947         return result;
 948 }
 949
 950 void Session::remove_devices()
 951 {
 952         _other_devices.clear();
 953         check(sr_session_dev_remove_all(_structure));
 954 }
 955
 956 void Session::start()
 957 {
 958         check(sr_session_start(_structure));
 959 }
 960
 961 void Session::run()
 962 {
 963         check(sr_session_run(_structure));
 964 }
 965
 966 void Session::stop()
 967 {
 968         check(sr_session_stop(_structure));
 969 }
 970
 971 static void datafeed_callback(const struct sr_dev_inst *sdi,
 972         const struct sr_datafeed_packet *pkt, void *cb_data)
 973 {
 974         auto callback = static_cast<DatafeedCallbackData *>(cb_data);
 975         callback->run(sdi, pkt);
 976 }
 977
 978 void Session::add_datafeed_callback(DatafeedCallbackFunction callback)
 979 {
 980         auto cb_data = new DatafeedCallbackData(this, callback);
 981         check(sr_session_datafeed_callback_add(_structure,
 982                 datafeed_callback, cb_data));
 983         _datafeed_callbacks.push_back(cb_data);
 984 }
 985
 986 void Session::remove_datafeed_callbacks(void)
 987 {
 988         check(sr_session_datafeed_callback_remove_all(_structure));
 989         for (auto callback : _datafeed_callbacks)
 990                 delete callback;
 991         _datafeed_callbacks.clear();
 992 }
 993
 994 static int source_callback(int fd, int revents, void *cb_data)
 995 {
 996         (void) fd;
 997         auto callback = (SourceCallbackData *) cb_data;
 998         return callback->run(revents);
 999 }
1000
1001 void Session::add_source(shared_ptr<EventSource> source)
1002 {
1003         if (_source_callbacks.count(source) == 1)
1004                 throw Error(SR_ERR_ARG);
1005
1006         auto cb_data = new SourceCallbackData(source);
1007
1008         switch (source->_type)
1009         {
1010                 case EventSource::SOURCE_FD:
1011                         check(sr_session_source_add(_structure, source->_fd, source->_events,
1012                                 source->_timeout, source_callback, cb_data));
1013                         break;
1014                 case EventSource::SOURCE_POLLFD:
1015                         check(sr_session_source_add_pollfd(_structure,
1016                                 source->_pollfd.gobj(), source->_timeout, source_callback,
1017                                 cb_data));
1018                         break;
1019                 case EventSource::SOURCE_IOCHANNEL:
1020                         check(sr_session_source_add_channel(_structure,
1021                                 source->_channel->gobj(), source->_events, source->_timeout,
1022                                 source_callback, cb_data));
1023                         break;
1024         }
1025
1026         _source_callbacks[source] = cb_data;
1027 }
1028
1029 void Session::remove_source(shared_ptr<EventSource> source)
1030 {
1031         if (_source_callbacks.count(source) == 0)
1032                 throw Error(SR_ERR_ARG);
1033
1034         switch (source->_type)
1035         {
1036                 case EventSource::SOURCE_FD:
1037                         check(sr_session_source_remove(_structure, source->_fd));
1038                         break;
1039                 case EventSource::SOURCE_POLLFD:
1040                         check(sr_session_source_remove_pollfd(_structure,
1041                                 source->_pollfd.gobj()));
1042                         break;
1043                 case EventSource::SOURCE_IOCHANNEL:
1044                         check(sr_session_source_remove_channel(_structure,
1045                                 source->_channel->gobj()));
1046                         break;
1047         }
1048
1049         delete _source_callbacks[source];
1050
1051         _source_callbacks.erase(source);
1052 }
1053
1054 shared_ptr<Trigger> Session::trigger()
1055 {
1056         return _trigger;
1057 }
1058
1059 void Session::set_trigger(shared_ptr<Trigger> trigger)
1060 {
1061         if (!trigger)
1062                 // Set NULL trigger, i.e. remove any trigger from the session.
1063                 check(sr_session_trigger_set(_structure, NULL));
1064         else
1065                 check(sr_session_trigger_set(_structure, trigger->_structure));
1066         _trigger = trigger;
1067 }
1068
1069 string Session::filename()
1070 {
1071         return _filename;
1072 }
1073
1074 shared_ptr<Context> Session::context()
1075 {
1076         return _context;
1077 }
1078
1079 Packet::Packet(shared_ptr<Device> device,
1080         const struct sr_datafeed_packet *structure) :
1081         UserOwned(structure),
1082         _device(device)
1083 {
1084         switch (structure->type)
1085         {
1086                 case SR_DF_HEADER:
1087                         _payload = new Header(
1088                                 static_cast<const struct sr_datafeed_header *>(
1089                                         structure->payload));
1090                         break;
1091                 case SR_DF_META:
1092                         _payload = new Meta(
1093                                 static_cast<const struct sr_datafeed_meta *>(
1094                                         structure->payload));
1095                         break;
1096                 case SR_DF_LOGIC:
1097                         _payload = new Logic(
1098                                 static_cast<const struct sr_datafeed_logic *>(
1099                                         structure->payload));
1100                         break;
1101                 case SR_DF_ANALOG:
1102                         _payload = new Analog(
1103                                 static_cast<const struct sr_datafeed_analog *>(
1104                                         structure->payload));
1105                         break;
1106                 default:
1107                         _payload = nullptr;
1108                         break;
1109         }
1110 }
1111
1112 Packet::~Packet()
1113 {
1114         if (_payload)
1115                 delete _payload;
1116 }
1117
1118 const PacketType *Packet::type()
1119 {
1120         return PacketType::get(_structure->type);
1121 }
1122
1123 shared_ptr<PacketPayload> Packet::payload()
1124 {
1125         if (_payload)
1126                 return _payload->get_shared_pointer(this);
1127         else
1128                 throw Error(SR_ERR_NA);
1129 }
1130
1131 PacketPayload::PacketPayload()
1132 {
1133 }
1134
1135 PacketPayload::~PacketPayload()
1136 {
1137 }
1138
1139 Header::Header(const struct sr_datafeed_header *structure) :
1140         ParentOwned(structure),
1141         PacketPayload()
1142 {
1143 }
1144
1145 Header::~Header()
1146 {
1147 }
1148
1149 shared_ptr<PacketPayload> Header::get_shared_pointer(Packet *_parent)
1150 {
1151         return static_pointer_cast<PacketPayload>(
1152                 ParentOwned::get_shared_pointer(_parent));
1153 }
1154
1155 int Header::feed_version()
1156 {
1157         return _structure->feed_version;
1158 }
1159
1160 Glib::TimeVal Header::start_time()
1161 {
1162         return Glib::TimeVal(
1163                 _structure->starttime.tv_sec,
1164                 _structure->starttime.tv_usec);
1165 }
1166
1167 Meta::Meta(const struct sr_datafeed_meta *structure) :
1168         ParentOwned(structure),
1169         PacketPayload()
1170 {
1171 }
1172
1173 Meta::~Meta()
1174 {
1175 }
1176
1177 shared_ptr<PacketPayload> Meta::get_shared_pointer(Packet *_parent)
1178 {
1179         return static_pointer_cast<PacketPayload>(
1180                 ParentOwned::get_shared_pointer(_parent));
1181 }
1182
1183 map<const ConfigKey *, Glib::VariantBase> Meta::config()
1184 {
1185         map<const ConfigKey *, Glib::VariantBase> result;
1186         for (auto l = _structure->config; l; l = l->next)
1187         {
1188                 auto config = (struct sr_config *) l->data;
1189                 result[ConfigKey::get(config->key)] = Glib::VariantBase(config->data);
1190         }
1191         return result;
1192 }
1193
1194 Logic::Logic(const struct sr_datafeed_logic *structure) :
1195         ParentOwned(structure),
1196         PacketPayload()
1197 {
1198 }
1199
1200 Logic::~Logic()
1201 {
1202 }
1203
1204 shared_ptr<PacketPayload> Logic::get_shared_pointer(Packet *_parent)
1205 {
1206         return static_pointer_cast<PacketPayload>(
1207                 ParentOwned::get_shared_pointer(_parent));
1208 }
1209
1210 void *Logic::data_pointer()
1211 {
1212         return _structure->data;
1213 }
1214
1215 size_t Logic::data_length()
1216 {
1217         return _structure->length;
1218 }
1219
1220 unsigned int Logic::unit_size()
1221 {
1222         return _structure->unitsize;
1223 }
1224
1225 Analog::Analog(const struct sr_datafeed_analog *structure) :
1226         ParentOwned(structure),
1227         PacketPayload()
1228 {
1229 }
1230
1231 Analog::~Analog()
1232 {
1233 }
1234
1235 shared_ptr<PacketPayload> Analog::get_shared_pointer(Packet *_parent)
1236 {
1237         return static_pointer_cast<PacketPayload>(
1238                 ParentOwned::get_shared_pointer(_parent));
1239 }
1240
1241 float *Analog::data_pointer()
1242 {
1243         return _structure->data;
1244 }
1245
1246 unsigned int Analog::num_samples()
1247 {
1248         return _structure->num_samples;
1249 }
1250
1251 vector<shared_ptr<Channel>> Analog::channels()
1252 {
1253         vector<shared_ptr<Channel>> result;
1254         for (auto l = _structure->channels; l; l = l->next)
1255                 result.push_back(_parent->_device->get_channel(
1256                         (struct sr_channel *)l->data));
1257         return result;
1258 }
1259
1260 const Quantity *Analog::mq()
1261 {
1262         return Quantity::get(_structure->mq);
1263 }
1264
1265 const Unit *Analog::unit()
1266 {
1267         return Unit::get(_structure->unit);
1268 }
1269
1270 vector<const QuantityFlag *> Analog::mq_flags()
1271 {
1272         return QuantityFlag::flags_from_mask(_structure->mqflags);
1273 }
1274
1275 InputFormat::InputFormat(const struct sr_input_module *structure) :
1276         ParentOwned(structure)
1277 {
1278 }
1279
1280 InputFormat::~InputFormat()
1281 {
1282 }
1283
1284 string InputFormat::name()
1285 {
1286         return valid_string(sr_input_id_get(_structure));
1287 }
1288
1289 string InputFormat::description()
1290 {
1291         return valid_string(sr_input_description_get(_structure));
1292 }
1293
1294 vector<string> InputFormat::extensions()
1295 {
1296         vector<string> exts;
1297         for (const char *const *e = sr_input_extensions_get(_structure);
1298                 e && *e; e++)
1299                 exts.push_back(*e);
1300         return exts;
1301 }
1302
1303 map<string, shared_ptr<Option>> InputFormat::options()
1304 {
1305         const struct sr_option **options = sr_input_options_get(_structure);
1306         map<string, shared_ptr<Option>> result;
1307         if (options)
1308         {
1309                 auto option_array = shared_ptr<const struct sr_option *>(
1310                         options, sr_input_options_free);
1311                 for (int i = 0; options[i]; i++)
1312                         result[options[i]->id] = shared_ptr<Option>(
1313                                 new Option(options[i], option_array), Option::Deleter());
1314         }
1315         return result;
1316 }
1317
1318 shared_ptr<Input> InputFormat::create_input(
1319         map<string, Glib::VariantBase> options)
1320 {
1321         auto input = sr_input_new(_structure, map_to_hash_variant(options));
1322         if (!input)
1323                 throw Error(SR_ERR_ARG);
1324         return shared_ptr<Input>(
1325                 new Input(_parent->shared_from_this(), input), Input::Deleter());
1326 }
1327
1328 Input::Input(shared_ptr<Context> context, const struct sr_input *structure) :
1329         UserOwned(structure),
1330         _context(context),
1331         _device(nullptr)
1332 {
1333 }
1334
1335 shared_ptr<InputDevice> Input::device()
1336 {
1337         if (!_device)
1338         {
1339                 auto sdi = sr_input_dev_inst_get(_structure);
1340                 if (!sdi)
1341                         throw Error(SR_ERR_NA);
1342                 _device = new InputDevice(shared_from_this(), sdi);
1343         }
1344
1345         return _device->get_shared_pointer(shared_from_this());
1346 }
1347
1348 void Input::send(void *data, size_t length)
1349 {
1350         auto gstr = g_string_new_len((gchar *)data, length);
1351         auto ret = sr_input_send(_structure, gstr);
1352         g_string_free(gstr, false);
1353         check(ret);
1354 }
1355
1356 void Input::end()
1357 {
1358         check(sr_input_end(_structure));
1359 }
1360
1361 Input::~Input()
1362 {
1363         if (_device)
1364                 delete _device;
1365         sr_input_free(_structure);
1366 }
1367
1368 InputDevice::InputDevice(shared_ptr<Input> input,
1369                 struct sr_dev_inst *structure) :
1370         ParentOwned(structure),
1371         Device(structure),
1372         _input(input)
1373 {
1374 }
1375
1376 InputDevice::~InputDevice()
1377 {
1378 }
1379
1380 shared_ptr<Device> InputDevice::get_shared_from_this()
1381 {
1382         return static_pointer_cast<Device>(shared_from_this());
1383 }
1384
1385 Option::Option(const struct sr_option *structure,
1386                 shared_ptr<const struct sr_option *> structure_array) :
1387         UserOwned(structure),
1388         _structure_array(structure_array)
1389 {
1390 }
1391
1392 Option::~Option()
1393 {
1394 }
1395
1396 string Option::id()
1397 {
1398         return valid_string(_structure->id);
1399 }
1400
1401 string Option::name()
1402 {
1403         return valid_string(_structure->name);
1404 }
1405
1406 string Option::description()
1407 {
1408         return valid_string(_structure->desc);
1409 }
1410
1411 Glib::VariantBase Option::default_value()
1412 {
1413         return Glib::VariantBase(_structure->def, true);
1414 }
1415
1416 vector<Glib::VariantBase> Option::values()
1417 {
1418         vector<Glib::VariantBase> result;
1419         for (auto l = _structure->values; l; l = l->next)
1420                 result.push_back(Glib::VariantBase((GVariant *) l->data, true));
1421         return result;
1422 }
1423
1424 OutputFormat::OutputFormat(const struct sr_output_module *structure) :
1425         ParentOwned(structure)
1426 {
1427 }
1428
1429 OutputFormat::~OutputFormat()
1430 {
1431 }
1432
1433 string OutputFormat::name()
1434 {
1435         return valid_string(sr_output_id_get(_structure));
1436 }
1437
1438 string OutputFormat::description()
1439 {
1440         return valid_string(sr_output_description_get(_structure));
1441 }
1442
1443 vector<string> OutputFormat::extensions()
1444 {
1445         vector<string> exts;
1446         for (const char *const *e = sr_output_extensions_get(_structure);
1447                 e && *e; e++)
1448                 exts.push_back(*e);
1449         return exts;
1450 }
1451
1452 map<string, shared_ptr<Option>> OutputFormat::options()
1453 {
1454         const struct sr_option **options = sr_output_options_get(_structure);
1455         map<string, shared_ptr<Option>> result;
1456         if (options)
1457         {
1458                 auto option_array = shared_ptr<const struct sr_option *>(
1459                         options, sr_output_options_free);
1460                 for (int i = 0; options[i]; i++)
1461                         result[options[i]->id] = shared_ptr<Option>(
1462                                 new Option(options[i], option_array), Option::Deleter());
1463         }
1464         return result;
1465 }
1466
1467 shared_ptr<Output> OutputFormat::create_output(
1468         shared_ptr<Device> device, map<string, Glib::VariantBase> options)
1469 {
1470         return shared_ptr<Output>(
1471                 new Output(shared_from_this(), device, options),
1472                 Output::Deleter());
1473 }
1474
1475 shared_ptr<Output> OutputFormat::create_output(string filename,
1476         shared_ptr<Device> device, map<string, Glib::VariantBase> options)
1477 {
1478         return shared_ptr<Output>(
1479                 new Output(filename, shared_from_this(), device, options),
1480                 Output::Deleter());
1481 }
1482
1483 bool OutputFormat::test_flag(const OutputFlag *flag)
1484 {
1485         return sr_output_test_flag(_structure, flag->id());
1486 }
1487
1488 Output::Output(shared_ptr<OutputFormat> format,
1489                 shared_ptr<Device> device, map<string, Glib::VariantBase> options) :
1490         UserOwned(sr_output_new(format->_structure,
1491                 map_to_hash_variant(options), device->_structure, NULL)),
1492         _format(format),
1493         _device(device),
1494         _options(options)
1495 {
1496 }
1497
1498 Output::Output(string filename, shared_ptr<OutputFormat> format,
1499                 shared_ptr<Device> device, map<string, Glib::VariantBase> options) :
1500         UserOwned(sr_output_new(format->_structure,
1501                 map_to_hash_variant(options), device->_structure, filename.c_str())),
1502         _format(format),
1503         _device(device),
1504         _options(options)
1505 {
1506 }
1507
1508 Output::~Output()
1509 {
1510         check(sr_output_free(_structure));
1511 }
1512
1513 string Output::receive(shared_ptr<Packet> packet)
1514 {
1515         GString *out;
1516         check(sr_output_send(_structure, packet->_structure, &out));
1517         if (out)
1518         {
1519                 auto result = string(out->str, out->str + out->len);
1520                 g_string_free(out, true);
1521                 return result;
1522         }
1523         else
1524         {
1525                 return string();
1526         }
1527 }
1528
1529 #include <enums.cpp>
1530
1531 }