dbus/test_service.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "dbus/test_service.h"
   6
   7 #include <string>
   8 #include <vector>
   9
  10 #include "base/bind.h"
  11 #include "base/test/test_timeouts.h"
  12 #include "base/threading/platform_thread.h"
  13 #include "dbus/bus.h"
  14 #include "dbus/exported_object.h"
  15 #include "dbus/message.h"
  16 #include "dbus/object_manager.h"
  17 #include "dbus/object_path.h"
  18 #include "dbus/property.h"
  19
  20 namespace {
  21
  22 void EmptyCallback(bool /* success */) {
  23 }
  24
  25 }  // namespace
  26
  27 namespace dbus {
  28
  29 // Echo, SlowEcho, AsyncEcho, BrokenMethod, GetAll, Get, Set, PerformAction,
  30 // GetManagedObjects
  31 const int TestService::kNumMethodsToExport = 9;
  32
  33 TestService::Options::Options()
  34     : request_ownership_options(Bus::REQUIRE_PRIMARY) {
  35 }
  36
  37 TestService::Options::~Options() {
  38 }
  39
  40 TestService::TestService(const Options& options)
  41     : base::Thread("TestService"),
  42       request_ownership_options_(options.request_ownership_options),
  43       dbus_task_runner_(options.dbus_task_runner),
  44       on_name_obtained_(false, false),
  45       num_exported_methods_(0),
  46       send_immediate_properties_changed_(false),
  47       has_ownership_(false),
  48       exported_object_(NULL),
  49       exported_object_manager_(NULL) {
  50 }
  51
  52 TestService::~TestService() {
  53   Stop();
  54 }
  55
  56 bool TestService::StartService() {
  57   base::Thread::Options thread_options;
  58   thread_options.message_loop_type = base::MessageLoop::TYPE_IO;
  59   return StartWithOptions(thread_options);
  60 }
  61
  62 bool TestService::WaitUntilServiceIsStarted() {
  63   const base::TimeDelta timeout(TestTimeouts::action_max_timeout());
  64   // Wait until the ownership of the service name is obtained.
  65   return on_name_obtained_.TimedWait(timeout);
  66 }
  67
  68 void TestService::ShutdownAndBlock() {
  69   message_loop()->PostTask(
  70       FROM_HERE,
  71       base::Bind(&TestService::ShutdownAndBlockInternal,
  72                  base::Unretained(this)));
  73 }
  74
  75 bool TestService::HasDBusThread() {
  76   return bus_->HasDBusThread();
  77 }
  78
  79 void TestService::ShutdownAndBlockInternal() {
  80   if (HasDBusThread())
  81     bus_->ShutdownOnDBusThreadAndBlock();
  82   else
  83     bus_->ShutdownAndBlock();
  84 }
  85
  86 void TestService::SendTestSignal(const std::string& message) {
  87   message_loop()->PostTask(
  88       FROM_HERE,
  89       base::Bind(&TestService::SendTestSignalInternal,
  90                  base::Unretained(this),
  91                  message));
  92 }
  93
  94 void TestService::SendTestSignalFromRoot(const std::string& message) {
  95   message_loop()->PostTask(
  96       FROM_HERE,
  97       base::Bind(&TestService::SendTestSignalFromRootInternal,
  98                  base::Unretained(this),
  99                  message));
 100 }
 101
 102 void TestService::SendTestSignalInternal(const std::string& message) {
 103   Signal signal("org.chromium.TestInterface", "Test");
 104   MessageWriter writer(&signal);
 105   writer.AppendString(message);
 106   exported_object_->SendSignal(&signal);
 107 }
 108
 109 void TestService::SendTestSignalFromRootInternal(const std::string& message) {
 110   Signal signal("org.chromium.TestInterface", "Test");
 111   MessageWriter writer(&signal);
 112   writer.AppendString(message);
 113
 114   bus_->RequestOwnership("org.chromium.TestService",
 115                          request_ownership_options_,
 116                          base::Bind(&TestService::OnOwnership,
 117                                     base::Unretained(this),
 118                                     base::Bind(&EmptyCallback)));
 119
 120   // Use "/" just like dbus-send does.
 121   ExportedObject* root_object = bus_->GetExportedObject(ObjectPath("/"));
 122   root_object->SendSignal(&signal);
 123 }
 124
 125 void TestService::RequestOwnership(base::Callback<void(bool)> callback) {
 126   message_loop()->PostTask(
 127       FROM_HERE,
 128       base::Bind(&TestService::RequestOwnershipInternal,
 129                  base::Unretained(this),
 130                  callback));
 131 }
 132
 133 void TestService::RequestOwnershipInternal(
 134     base::Callback<void(bool)> callback) {
 135   bus_->RequestOwnership("org.chromium.TestService",
 136                          request_ownership_options_,
 137                          base::Bind(&TestService::OnOwnership,
 138                                     base::Unretained(this),
 139                                     callback));
 140 }
 141
 142 void TestService::OnOwnership(base::Callback<void(bool)> callback,
 143                               const std::string& service_name,
 144                               bool success) {
 145   has_ownership_ = success;
 146   LOG_IF(ERROR, !success) << "Failed to own: " << service_name;
 147   callback.Run(success);
 148
 149   on_name_obtained_.Signal();
 150 }
 151
 152 void TestService::ReleaseOwnership(base::Closure callback) {
 153   bus_->GetDBusTaskRunner()->PostTask(
 154       FROM_HERE,
 155       base::Bind(&TestService::ReleaseOwnershipInternal,
 156                  base::Unretained(this),
 157                  callback));
 158 }
 159
 160 void TestService::ReleaseOwnershipInternal(
 161     base::Closure callback) {
 162   bus_->ReleaseOwnership("org.chromium.TestService");
 163   has_ownership_ = false;
 164
 165   bus_->GetOriginTaskRunner()->PostTask(
 166       FROM_HERE,
 167       callback);
 168 }
 169
 170 void TestService::SetSendImmediatePropertiesChanged() {
 171   send_immediate_properties_changed_ = true;
 172 }
 173
 174 void TestService::OnExported(const std::string& interface_name,
 175                              const std::string& method_name,
 176                              bool success) {
 177   if (!success) {
 178     LOG(ERROR) << "Failed to export: " << interface_name << "."
 179                << method_name;
 180     // Returning here will make WaitUntilServiceIsStarted() to time out
 181     // and return false.
 182     return;
 183   }
 184
 185   ++num_exported_methods_;
 186   if (num_exported_methods_ == kNumMethodsToExport) {
 187     // As documented in exported_object.h, the service name should be
 188     // requested after all methods are exposed.
 189     bus_->RequestOwnership("org.chromium.TestService",
 190                            request_ownership_options_,
 191                            base::Bind(&TestService::OnOwnership,
 192                                       base::Unretained(this),
 193                                       base::Bind(&EmptyCallback)));
 194   }
 195 }
 196
 197 void TestService::Run(base::MessageLoop* message_loop) {
 198   Bus::Options bus_options;
 199   bus_options.bus_type = Bus::SESSION;
 200   bus_options.connection_type = Bus::PRIVATE;
 201   bus_options.dbus_task_runner = dbus_task_runner_;
 202   bus_ = new Bus(bus_options);
 203
 204   exported_object_ = bus_->GetExportedObject(
 205       ObjectPath("/org/chromium/TestObject"));
 206
 207   int num_methods = 0;
 208   exported_object_->ExportMethod(
 209       "org.chromium.TestInterface",
 210       "Echo",
 211       base::Bind(&TestService::Echo,
 212                  base::Unretained(this)),
 213       base::Bind(&TestService::OnExported,
 214                  base::Unretained(this)));
 215   ++num_methods;
 216
 217   exported_object_->ExportMethod(
 218       "org.chromium.TestInterface",
 219       "SlowEcho",
 220       base::Bind(&TestService::SlowEcho,
 221                  base::Unretained(this)),
 222       base::Bind(&TestService::OnExported,
 223                  base::Unretained(this)));
 224   ++num_methods;
 225
 226   exported_object_->ExportMethod(
 227       "org.chromium.TestInterface",
 228       "AsyncEcho",
 229       base::Bind(&TestService::AsyncEcho,
 230                  base::Unretained(this)),
 231       base::Bind(&TestService::OnExported,
 232                  base::Unretained(this)));
 233   ++num_methods;
 234
 235   exported_object_->ExportMethod(
 236       "org.chromium.TestInterface",
 237       "BrokenMethod",
 238       base::Bind(&TestService::BrokenMethod,
 239                  base::Unretained(this)),
 240       base::Bind(&TestService::OnExported,
 241                  base::Unretained(this)));
 242   ++num_methods;
 243
 244   exported_object_->ExportMethod(
 245       "org.chromium.TestInterface",
 246       "PerformAction",
 247       base::Bind(&TestService::PerformAction,
 248                  base::Unretained(this)),
 249       base::Bind(&TestService::OnExported,
 250                  base::Unretained(this)));
 251   ++num_methods;
 252
 253   exported_object_->ExportMethod(
 254        kPropertiesInterface,
 255        kPropertiesGetAll,
 256        base::Bind(&TestService::GetAllProperties,
 257                   base::Unretained(this)),
 258        base::Bind(&TestService::OnExported,
 259                   base::Unretained(this)));
 260   ++num_methods;
 261
 262   exported_object_->ExportMethod(
 263        kPropertiesInterface,
 264        kPropertiesGet,
 265        base::Bind(&TestService::GetProperty,
 266                   base::Unretained(this)),
 267        base::Bind(&TestService::OnExported,
 268                   base::Unretained(this)));
 269   ++num_methods;
 270
 271   exported_object_->ExportMethod(
 272        kPropertiesInterface,
 273        kPropertiesSet,
 274        base::Bind(&TestService::SetProperty,
 275                   base::Unretained(this)),
 276        base::Bind(&TestService::OnExported,
 277                   base::Unretained(this)));
 278   ++num_methods;
 279
 280   exported_object_manager_ = bus_->GetExportedObject(
 281       ObjectPath("/org/chromium/TestService"));
 282
 283   exported_object_manager_->ExportMethod(
 284        kObjectManagerInterface,
 285        kObjectManagerGetManagedObjects,
 286        base::Bind(&TestService::GetManagedObjects,
 287                   base::Unretained(this)),
 288        base::Bind(&TestService::OnExported,
 289                   base::Unretained(this)));
 290   ++num_methods;
 291
 292   // Just print an error message as we don't want to crash tests.
 293   // Tests will fail at a call to WaitUntilServiceIsStarted().
 294   if (num_methods != kNumMethodsToExport) {
 295     LOG(ERROR) << "The number of methods does not match";
 296   }
 297   message_loop->Run();
 298 }
 299
 300 void TestService::Echo(MethodCall* method_call,
 301                        ExportedObject::ResponseSender response_sender) {
 302   MessageReader reader(method_call);
 303   std::string text_message;
 304   if (!reader.PopString(&text_message)) {
 305     response_sender.Run(scoped_ptr<Response>());
 306     return;
 307   }
 308
 309   scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 310   MessageWriter writer(response.get());
 311   writer.AppendString(text_message);
 312   response_sender.Run(response.Pass());
 313 }
 314
 315 void TestService::SlowEcho(MethodCall* method_call,
 316                            ExportedObject::ResponseSender response_sender) {
 317   base::PlatformThread::Sleep(TestTimeouts::tiny_timeout());
 318   Echo(method_call, response_sender);
 319 }
 320
 321 void TestService::AsyncEcho(MethodCall* method_call,
 322                             ExportedObject::ResponseSender response_sender) {
 323   // Schedule a call to Echo() to send an asynchronous response after we return.
 324   message_loop()->PostDelayedTask(FROM_HERE,
 325                                   base::Bind(&TestService::Echo,
 326                                              base::Unretained(this),
 327                                              method_call,
 328                                              response_sender),
 329                                   TestTimeouts::tiny_timeout());
 330 }
 331
 332 void TestService::BrokenMethod(MethodCall* method_call,
 333                                ExportedObject::ResponseSender response_sender) {
 334   response_sender.Run(scoped_ptr<Response>());
 335 }
 336
 337
 338 void TestService::GetAllProperties(
 339     MethodCall* method_call,
 340     ExportedObject::ResponseSender response_sender) {
 341   MessageReader reader(method_call);
 342   std::string interface;
 343   if (!reader.PopString(&interface)) {
 344     response_sender.Run(scoped_ptr<Response>());
 345     return;
 346   }
 347
 348   scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 349   MessageWriter writer(response.get());
 350
 351   AddPropertiesToWriter(&writer);
 352
 353   response_sender.Run(response.Pass());
 354 }
 355
 356 void TestService::GetProperty(MethodCall* method_call,
 357                               ExportedObject::ResponseSender response_sender) {
 358   MessageReader reader(method_call);
 359   std::string interface;
 360   if (!reader.PopString(&interface)) {
 361     response_sender.Run(scoped_ptr<Response>());
 362     return;
 363   }
 364
 365   std::string name;
 366   if (!reader.PopString(&name)) {
 367     response_sender.Run(scoped_ptr<Response>());
 368     return;
 369   }
 370
 371   if (name == "Name") {
 372     // Return the previous value for the "Name" property:
 373     // Variant<"TestService">
 374     scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 375     MessageWriter writer(response.get());
 376
 377     writer.AppendVariantOfString("TestService");
 378
 379     response_sender.Run(response.Pass());
 380   } else if (name == "Version") {
 381     // Return a new value for the "Version" property:
 382     // Variant<20>
 383     scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 384     MessageWriter writer(response.get());
 385
 386     writer.AppendVariantOfInt16(20);
 387
 388     response_sender.Run(response.Pass());
 389   } else if (name == "Methods") {
 390     // Return the previous value for the "Methods" property:
 391     // Variant<["Echo", "SlowEcho", "AsyncEcho", "BrokenMethod"]>
 392     scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 393     MessageWriter writer(response.get());
 394     MessageWriter variant_writer(NULL);
 395     MessageWriter variant_array_writer(NULL);
 396
 397     writer.OpenVariant("as", &variant_writer);
 398     variant_writer.OpenArray("s", &variant_array_writer);
 399     variant_array_writer.AppendString("Echo");
 400     variant_array_writer.AppendString("SlowEcho");
 401     variant_array_writer.AppendString("AsyncEcho");
 402     variant_array_writer.AppendString("BrokenMethod");
 403     variant_writer.CloseContainer(&variant_array_writer);
 404     writer.CloseContainer(&variant_writer);
 405
 406     response_sender.Run(response.Pass());
 407   } else if (name == "Objects") {
 408     // Return the previous value for the "Objects" property:
 409     // Variant<[objectpath:"/TestObjectPath"]>
 410     scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 411     MessageWriter writer(response.get());
 412     MessageWriter variant_writer(NULL);
 413     MessageWriter variant_array_writer(NULL);
 414
 415     writer.OpenVariant("ao", &variant_writer);
 416     variant_writer.OpenArray("o", &variant_array_writer);
 417     variant_array_writer.AppendObjectPath(ObjectPath("/TestObjectPath"));
 418     variant_writer.CloseContainer(&variant_array_writer);
 419     writer.CloseContainer(&variant_writer);
 420
 421     response_sender.Run(response.Pass());
 422   } else if (name == "Bytes") {
 423     // Return the previous value for the "Bytes" property:
 424     // Variant<[0x54, 0x65, 0x73, 0x74]>
 425     scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 426     MessageWriter writer(response.get());
 427     MessageWriter variant_writer(NULL);
 428     MessageWriter variant_array_writer(NULL);
 429
 430     writer.OpenVariant("ay", &variant_writer);
 431     const uint8 bytes[] = { 0x54, 0x65, 0x73, 0x74 };
 432     variant_writer.AppendArrayOfBytes(bytes, sizeof(bytes));
 433     writer.CloseContainer(&variant_writer);
 434
 435     response_sender.Run(response.Pass());
 436   } else {
 437     // Return error.
 438     response_sender.Run(scoped_ptr<Response>());
 439     return;
 440   }
 441 }
 442
 443 void TestService::SetProperty(MethodCall* method_call,
 444                               ExportedObject::ResponseSender response_sender) {
 445   MessageReader reader(method_call);
 446   std::string interface;
 447   if (!reader.PopString(&interface)) {
 448     response_sender.Run(scoped_ptr<Response>());
 449     return;
 450   }
 451
 452   std::string name;
 453   if (!reader.PopString(&name)) {
 454     response_sender.Run(scoped_ptr<Response>());
 455     return;
 456   }
 457
 458   if (name != "Name") {
 459     response_sender.Run(scoped_ptr<Response>());
 460     return;
 461   }
 462
 463   std::string value;
 464   if (!reader.PopVariantOfString(&value)) {
 465     response_sender.Run(scoped_ptr<Response>());
 466     return;
 467   }
 468
 469   SendPropertyChangedSignal(value);
 470
 471   response_sender.Run(Response::FromMethodCall(method_call));
 472 }
 473
 474 void TestService::PerformAction(
 475       MethodCall* method_call,
 476       ExportedObject::ResponseSender response_sender) {
 477   MessageReader reader(method_call);
 478   std::string action;
 479   ObjectPath object_path;
 480   if (!reader.PopString(&action) || !reader.PopObjectPath(&object_path)) {
 481     response_sender.Run(scoped_ptr<Response>());
 482     return;
 483   }
 484
 485   if (action == "AddObject") {
 486     AddObject(object_path);
 487   } else if (action == "RemoveObject") {
 488     RemoveObject(object_path);
 489   } else if (action == "SetSendImmediatePropertiesChanged") {
 490     SetSendImmediatePropertiesChanged();
 491   } else if (action == "ReleaseOwnership") {
 492     ReleaseOwnership(base::Bind(&TestService::PerformActionResponse,
 493                                 base::Unretained(this),
 494                                 method_call, response_sender));
 495     return;
 496   } else if (action == "Ownership") {
 497     ReleaseOwnership(base::Bind(&TestService::OwnershipReleased,
 498                                 base::Unretained(this),
 499                                 method_call, response_sender));
 500     return;
 501   } else if (action == "InvalidateProperty") {
 502     SendPropertyInvalidatedSignal();
 503   }
 504
 505   scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 506   response_sender.Run(response.Pass());
 507 }
 508
 509 void TestService::PerformActionResponse(
 510     MethodCall* method_call,
 511     ExportedObject::ResponseSender response_sender) {
 512   scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 513   response_sender.Run(response.Pass());
 514 }
 515
 516 void TestService::OwnershipReleased(
 517     MethodCall* method_call,
 518     ExportedObject::ResponseSender response_sender) {
 519   RequestOwnership(base::Bind(&TestService::OwnershipRegained,
 520                               base::Unretained(this),
 521                               method_call, response_sender));
 522 }
 523
 524
 525 void TestService::OwnershipRegained(
 526     MethodCall* method_call,
 527     ExportedObject::ResponseSender response_sender,
 528     bool success) {
 529   PerformActionResponse(method_call, response_sender);
 530 }
 531
 532
 533 void TestService::GetManagedObjects(
 534     MethodCall* method_call,
 535     ExportedObject::ResponseSender response_sender) {
 536   scoped_ptr<Response> response = Response::FromMethodCall(method_call);
 537   MessageWriter writer(response.get());
 538
 539   // The managed objects response is a dictionary of object paths identifying
 540   // the object(s) with a dictionary of strings identifying the interface(s)
 541   // they implement and then a dictionary of property values.
 542   //
 543   // Thus this looks something like:
 544   //
 545   // {
 546   //   "/org/chromium/TestObject": {
 547   //     "org.chromium.TestInterface": { /* Properties */ }
 548   //   }
 549   // }
 550
 551
 552   MessageWriter array_writer(NULL);
 553   MessageWriter dict_entry_writer(NULL);
 554   MessageWriter object_array_writer(NULL);
 555   MessageWriter object_dict_entry_writer(NULL);
 556
 557   writer.OpenArray("{oa{sa{sv}}}", &array_writer);
 558
 559   array_writer.OpenDictEntry(&dict_entry_writer);
 560   dict_entry_writer.AppendObjectPath(ObjectPath("/org/chromium/TestObject"));
 561   dict_entry_writer.OpenArray("{sa{sv}}", &object_array_writer);
 562
 563   object_array_writer.OpenDictEntry(&object_dict_entry_writer);
 564   object_dict_entry_writer.AppendString("org.chromium.TestInterface");
 565   AddPropertiesToWriter(&object_dict_entry_writer);
 566   object_array_writer.CloseContainer(&object_dict_entry_writer);
 567
 568   dict_entry_writer.CloseContainer(&object_array_writer);
 569
 570   array_writer.CloseContainer(&dict_entry_writer);
 571   writer.CloseContainer(&array_writer);
 572
 573   response_sender.Run(response.Pass());
 574
 575   if (send_immediate_properties_changed_)
 576     SendPropertyChangedSignal("ChangedTestServiceName");
 577 }
 578
 579 void TestService::AddPropertiesToWriter(MessageWriter* writer) {
 580   // The properties response is a dictionary of strings identifying the
 581   // property and a variant containing the property value. We return all
 582   // of the properties, thus the response is:
 583   //
 584   // {
 585   //   "Name": Variant<"TestService">,
 586   //   "Version": Variant<10>,
 587   //   "Methods": Variant<["Echo", "SlowEcho", "AsyncEcho", "BrokenMethod"]>,
 588   //   "Objects": Variant<[objectpath:"/TestObjectPath"]>
 589   //   "Bytes": Variant<[0x54, 0x65, 0x73, 0x74]>
 590   // }
 591
 592   MessageWriter array_writer(NULL);
 593   MessageWriter dict_entry_writer(NULL);
 594   MessageWriter variant_writer(NULL);
 595   MessageWriter variant_array_writer(NULL);
 596
 597   writer->OpenArray("{sv}", &array_writer);
 598
 599   array_writer.OpenDictEntry(&dict_entry_writer);
 600   dict_entry_writer.AppendString("Name");
 601   dict_entry_writer.AppendVariantOfString("TestService");
 602   array_writer.CloseContainer(&dict_entry_writer);
 603
 604   array_writer.OpenDictEntry(&dict_entry_writer);
 605   dict_entry_writer.AppendString("Version");
 606   dict_entry_writer.AppendVariantOfInt16(10);
 607   array_writer.CloseContainer(&dict_entry_writer);
 608
 609   array_writer.OpenDictEntry(&dict_entry_writer);
 610   dict_entry_writer.AppendString("Methods");
 611   dict_entry_writer.OpenVariant("as", &variant_writer);
 612   variant_writer.OpenArray("s", &variant_array_writer);
 613   variant_array_writer.AppendString("Echo");
 614   variant_array_writer.AppendString("SlowEcho");
 615   variant_array_writer.AppendString("AsyncEcho");
 616   variant_array_writer.AppendString("BrokenMethod");
 617   variant_writer.CloseContainer(&variant_array_writer);
 618   dict_entry_writer.CloseContainer(&variant_writer);
 619   array_writer.CloseContainer(&dict_entry_writer);
 620
 621   array_writer.OpenDictEntry(&dict_entry_writer);
 622   dict_entry_writer.AppendString("Objects");
 623   dict_entry_writer.OpenVariant("ao", &variant_writer);
 624   variant_writer.OpenArray("o", &variant_array_writer);
 625   variant_array_writer.AppendObjectPath(ObjectPath("/TestObjectPath"));
 626   variant_writer.CloseContainer(&variant_array_writer);
 627   dict_entry_writer.CloseContainer(&variant_writer);
 628   array_writer.CloseContainer(&dict_entry_writer);
 629
 630   array_writer.OpenDictEntry(&dict_entry_writer);
 631   dict_entry_writer.AppendString("Bytes");
 632   dict_entry_writer.OpenVariant("ay", &variant_writer);
 633   const uint8 bytes[] = { 0x54, 0x65, 0x73, 0x74 };
 634   variant_writer.AppendArrayOfBytes(bytes, sizeof(bytes));
 635   dict_entry_writer.CloseContainer(&variant_writer);
 636   array_writer.CloseContainer(&dict_entry_writer);
 637
 638   writer->CloseContainer(&array_writer);
 639 }
 640
 641 void TestService::AddObject(const ObjectPath& object_path) {
 642   message_loop()->PostTask(
 643       FROM_HERE,
 644       base::Bind(&TestService::AddObjectInternal,
 645                  base::Unretained(this),
 646                  object_path));
 647 }
 648
 649 void TestService::AddObjectInternal(const ObjectPath& object_path) {
 650   Signal signal(kObjectManagerInterface, kObjectManagerInterfacesAdded);
 651   MessageWriter writer(&signal);
 652   writer.AppendObjectPath(object_path);
 653
 654   MessageWriter array_writer(NULL);
 655   MessageWriter dict_entry_writer(NULL);
 656
 657   writer.OpenArray("{sa{sv}}", &array_writer);
 658   array_writer.OpenDictEntry(&dict_entry_writer);
 659   dict_entry_writer.AppendString("org.chromium.TestInterface");
 660   AddPropertiesToWriter(&dict_entry_writer);
 661   array_writer.CloseContainer(&dict_entry_writer);
 662   writer.CloseContainer(&array_writer);
 663
 664   exported_object_manager_->SendSignal(&signal);
 665 }
 666
 667 void TestService::RemoveObject(const ObjectPath& object_path) {
 668   message_loop()->PostTask(FROM_HERE,
 669                            base::Bind(&TestService::RemoveObjectInternal,
 670                                       base::Unretained(this),
 671                                       object_path));
 672 }
 673
 674 void TestService::RemoveObjectInternal(const ObjectPath& object_path) {
 675   Signal signal(kObjectManagerInterface, kObjectManagerInterfacesRemoved);
 676   MessageWriter writer(&signal);
 677
 678   writer.AppendObjectPath(object_path);
 679
 680   std::vector<std::string> interfaces;
 681   interfaces.push_back("org.chromium.TestInterface");
 682   writer.AppendArrayOfStrings(interfaces);
 683
 684   exported_object_manager_->SendSignal(&signal);
 685 }
 686
 687 void TestService::SendPropertyChangedSignal(const std::string& name) {
 688   message_loop()->PostTask(
 689       FROM_HERE,
 690       base::Bind(&TestService::SendPropertyChangedSignalInternal,
 691                  base::Unretained(this),
 692                  name));
 693 }
 694
 695 void TestService::SendPropertyChangedSignalInternal(const std::string& name) {
 696   Signal signal(kPropertiesInterface, kPropertiesChanged);
 697   MessageWriter writer(&signal);
 698   writer.AppendString("org.chromium.TestInterface");
 699
 700   MessageWriter array_writer(NULL);
 701   MessageWriter dict_entry_writer(NULL);
 702
 703   writer.OpenArray("{sv}", &array_writer);
 704   array_writer.OpenDictEntry(&dict_entry_writer);
 705   dict_entry_writer.AppendString("Name");
 706   dict_entry_writer.AppendVariantOfString(name);
 707   array_writer.CloseContainer(&dict_entry_writer);
 708   writer.CloseContainer(&array_writer);
 709
 710   MessageWriter invalidated_array_writer(NULL);
 711
 712   writer.OpenArray("s", &invalidated_array_writer);
 713   writer.CloseContainer(&invalidated_array_writer);
 714
 715   exported_object_->SendSignal(&signal);
 716 }
 717
 718 void TestService::SendPropertyInvalidatedSignal() {
 719   message_loop()->PostTask(
 720       FROM_HERE, base::Bind(&TestService::SendPropertyInvalidatedSignalInternal,
 721                             base::Unretained(this)));
 722 }
 723
 724 void TestService::SendPropertyInvalidatedSignalInternal() {
 725   Signal signal(kPropertiesInterface, kPropertiesChanged);
 726   MessageWriter writer(&signal);
 727   writer.AppendString("org.chromium.TestInterface");
 728
 729   MessageWriter array_writer(NULL);
 730   MessageWriter dict_entry_writer(NULL);
 731
 732   writer.OpenArray("{sv}", &array_writer);
 733   writer.CloseContainer(&array_writer);
 734
 735   MessageWriter invalidated_array_writer(NULL);
 736
 737   writer.OpenArray("s", &invalidated_array_writer);
 738   invalidated_array_writer.AppendString("Name");
 739   writer.CloseContainer(&invalidated_array_writer);
 740
 741   exported_object_->SendSignal(&signal);
 742 }
 743
 744 }  // namespace dbus