dom/indexedDB/ipc/IndexedDBChild.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/indexedDB/ipc/IndexedDBChild.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,1382 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +#include "base/basictypes.h"
     1.9 +
    1.10 +#include "IndexedDBChild.h"
    1.11 +
    1.12 +#include "nsIInputStream.h"
    1.13 +
    1.14 +#include "mozilla/Assertions.h"
    1.15 +#include "mozilla/dom/ContentChild.h"
    1.16 +#include "mozilla/dom/quota/Client.h"
    1.17 +#include "mozilla/dom/quota/QuotaManager.h"
    1.18 +
    1.19 +#include "AsyncConnectionHelper.h"
    1.20 +#include "DatabaseInfo.h"
    1.21 +#include "IDBEvents.h"
    1.22 +#include "IDBFactory.h"
    1.23 +#include "IDBIndex.h"
    1.24 +#include "IDBObjectStore.h"
    1.25 +#include "IDBTransaction.h"
    1.26 +
    1.27 +USING_INDEXEDDB_NAMESPACE
    1.28 +
    1.29 +using namespace mozilla::dom;
    1.30 +using mozilla::dom::quota::Client;
    1.31 +using mozilla::dom::quota::QuotaManager;
    1.32 +
    1.33 +namespace {
    1.34 +
    1.35 +class IPCOpenDatabaseHelper : public AsyncConnectionHelper
    1.36 +{
    1.37 +public:
    1.38 +  IPCOpenDatabaseHelper(IDBDatabase* aDatabase, IDBOpenDBRequest* aRequest)
    1.39 +  : AsyncConnectionHelper(aDatabase, aRequest)
    1.40 +  {
    1.41 +    MOZ_ASSERT(aRequest);
    1.42 +  }
    1.43 +
    1.44 +  virtual nsresult UnpackResponseFromParentProcess(
    1.45 +                                            const ResponseValue& aResponseValue)
    1.46 +                                            MOZ_OVERRIDE;
    1.47 +
    1.48 +  virtual ChildProcessSendResult
    1.49 +  SendResponseToChildProcess(nsresult aResultCode) MOZ_OVERRIDE;
    1.50 +
    1.51 +  virtual nsresult
    1.52 +  GetSuccessResult(JSContext* aCx, JS::MutableHandle<JS::Value> aVal) MOZ_OVERRIDE;
    1.53 +
    1.54 +  virtual nsresult
    1.55 +  OnSuccess() MOZ_OVERRIDE
    1.56 +  {
    1.57 +    static_cast<IDBOpenDBRequest*>(mRequest.get())->SetTransaction(nullptr);
    1.58 +    return AsyncConnectionHelper::OnSuccess();
    1.59 +  }
    1.60 +
    1.61 +  virtual void
    1.62 +  OnError() MOZ_OVERRIDE
    1.63 +  {
    1.64 +    static_cast<IDBOpenDBRequest*>(mRequest.get())->SetTransaction(nullptr);
    1.65 +    AsyncConnectionHelper::OnError();
    1.66 +  }
    1.67 +
    1.68 +  virtual nsresult
    1.69 +  DoDatabaseWork(mozIStorageConnection* aConnection) MOZ_OVERRIDE;
    1.70 +};
    1.71 +
    1.72 +class IPCSetVersionHelper : public AsyncConnectionHelper
    1.73 +{
    1.74 +  nsRefPtr<IDBOpenDBRequest> mOpenRequest;
    1.75 +  uint64_t mOldVersion;
    1.76 +  uint64_t mRequestedVersion;
    1.77 +
    1.78 +public:
    1.79 +  IPCSetVersionHelper(IDBTransaction* aTransaction, IDBOpenDBRequest* aRequest,
    1.80 +                      uint64_t aOldVersion, uint64_t aRequestedVersion)
    1.81 +  : AsyncConnectionHelper(aTransaction, aRequest),
    1.82 +    mOpenRequest(aRequest), mOldVersion(aOldVersion),
    1.83 +    mRequestedVersion(aRequestedVersion)
    1.84 +  {
    1.85 +    MOZ_ASSERT(aTransaction);
    1.86 +    MOZ_ASSERT(aRequest);
    1.87 +  }
    1.88 +
    1.89 +  virtual nsresult UnpackResponseFromParentProcess(
    1.90 +                                            const ResponseValue& aResponseValue)
    1.91 +                                            MOZ_OVERRIDE;
    1.92 +
    1.93 +  virtual ChildProcessSendResult
    1.94 +  SendResponseToChildProcess(nsresult aResultCode) MOZ_OVERRIDE;
    1.95 +
    1.96 +  virtual nsresult
    1.97 +  DoDatabaseWork(mozIStorageConnection* aConnection) MOZ_OVERRIDE;
    1.98 +
    1.99 +  virtual already_AddRefed<nsIDOMEvent>
   1.100 +  CreateSuccessEvent(mozilla::dom::EventTarget* aOwner) MOZ_OVERRIDE;
   1.101 +
   1.102 +  virtual nsresult
   1.103 +  GetSuccessResult(JSContext* aCx, JS::MutableHandle<JS::Value> aVal) MOZ_OVERRIDE;
   1.104 +};
   1.105 +
   1.106 +class IPCDeleteDatabaseHelper : public AsyncConnectionHelper
   1.107 +{
   1.108 +public:
   1.109 +  IPCDeleteDatabaseHelper(IDBRequest* aRequest)
   1.110 +  : AsyncConnectionHelper(static_cast<IDBDatabase*>(nullptr), aRequest)
   1.111 +  { }
   1.112 +
   1.113 +  virtual nsresult UnpackResponseFromParentProcess(
   1.114 +                                            const ResponseValue& aResponseValue)
   1.115 +                                            MOZ_OVERRIDE;
   1.116 +
   1.117 +  virtual ChildProcessSendResult
   1.118 +  SendResponseToChildProcess(nsresult aResultCode) MOZ_OVERRIDE;
   1.119 +
   1.120 +  virtual nsresult
   1.121 +  GetSuccessResult(JSContext* aCx, JS::MutableHandle<JS::Value> aVal) MOZ_OVERRIDE;
   1.122 +
   1.123 +  virtual nsresult
   1.124 +  DoDatabaseWork(mozIStorageConnection* aConnection) MOZ_OVERRIDE;
   1.125 +};
   1.126 +
   1.127 +class VersionChangeRunnable : public nsRunnable
   1.128 +{
   1.129 +  nsRefPtr<IDBDatabase> mDatabase;
   1.130 +  uint64_t mOldVersion;
   1.131 +  uint64_t mNewVersion;
   1.132 +
   1.133 +public:
   1.134 +  VersionChangeRunnable(IDBDatabase* aDatabase, const uint64_t& aOldVersion,
   1.135 +                        const uint64_t& aNewVersion)
   1.136 +  : mDatabase(aDatabase), mOldVersion(aOldVersion), mNewVersion(aNewVersion)
   1.137 +  {
   1.138 +    MOZ_ASSERT(aDatabase);
   1.139 +  }
   1.140 +
   1.141 +  NS_IMETHOD Run() MOZ_OVERRIDE
   1.142 +  {
   1.143 +    if (mDatabase->IsClosed()) {
   1.144 +      return NS_OK;
   1.145 +    }
   1.146 +
   1.147 +    nsRefPtr<Event> event =
   1.148 +      IDBVersionChangeEvent::Create(mDatabase, mOldVersion, mNewVersion);
   1.149 +    MOZ_ASSERT(event);
   1.150 +
   1.151 +    bool dummy;
   1.152 +    nsresult rv = mDatabase->DispatchEvent(event, &dummy);
   1.153 +    NS_ENSURE_SUCCESS(rv, rv);
   1.154 +
   1.155 +    return NS_OK;
   1.156 +  }
   1.157 +};
   1.158 +
   1.159 +} // anonymous namespace
   1.160 +
   1.161 +/*******************************************************************************
   1.162 + * IndexedDBChild
   1.163 + ******************************************************************************/
   1.164 +
   1.165 +IndexedDBChild::IndexedDBChild(const nsCString& aASCIIOrigin)
   1.166 +: mFactory(nullptr), mASCIIOrigin(aASCIIOrigin)
   1.167 +#ifdef DEBUG
   1.168 +  , mDisconnected(false)
   1.169 +#endif
   1.170 +{
   1.171 +  MOZ_COUNT_CTOR(IndexedDBChild);
   1.172 +}
   1.173 +
   1.174 +IndexedDBChild::~IndexedDBChild()
   1.175 +{
   1.176 +  MOZ_COUNT_DTOR(IndexedDBChild);
   1.177 +  MOZ_ASSERT(!mFactory);
   1.178 +}
   1.179 +
   1.180 +void
   1.181 +IndexedDBChild::SetFactory(IDBFactory* aFactory)
   1.182 +{
   1.183 +  MOZ_ASSERT(aFactory);
   1.184 +  MOZ_ASSERT(!mFactory);
   1.185 +
   1.186 +  aFactory->SetActor(this);
   1.187 +  mFactory = aFactory;
   1.188 +}
   1.189 +
   1.190 +void
   1.191 +IndexedDBChild::Disconnect()
   1.192 +{
   1.193 +#ifdef DEBUG
   1.194 +  MOZ_ASSERT(!mDisconnected);
   1.195 +  mDisconnected = true;
   1.196 +#endif
   1.197 +
   1.198 +  const InfallibleTArray<PIndexedDBDatabaseChild*>& databases =
   1.199 +    ManagedPIndexedDBDatabaseChild();
   1.200 +  for (uint32_t i = 0; i < databases.Length(); ++i) {
   1.201 +    static_cast<IndexedDBDatabaseChild*>(databases[i])->Disconnect();
   1.202 +  }
   1.203 +}
   1.204 +
   1.205 +void
   1.206 +IndexedDBChild::ActorDestroy(ActorDestroyReason aWhy)
   1.207 +{
   1.208 +  if (mFactory) {
   1.209 +    mFactory->SetActor(static_cast<IndexedDBChild*>(nullptr));
   1.210 +#ifdef DEBUG
   1.211 +    mFactory = nullptr;
   1.212 +#endif
   1.213 +  }
   1.214 +}
   1.215 +
   1.216 +PIndexedDBDatabaseChild*
   1.217 +IndexedDBChild::AllocPIndexedDBDatabaseChild(
   1.218 +                                        const nsString& aName,
   1.219 +                                        const uint64_t& aVersion,
   1.220 +                                        const PersistenceType& aPersistenceType)
   1.221 +{
   1.222 +  return new IndexedDBDatabaseChild(aName, aVersion);
   1.223 +}
   1.224 +
   1.225 +bool
   1.226 +IndexedDBChild::DeallocPIndexedDBDatabaseChild(PIndexedDBDatabaseChild* aActor)
   1.227 +{
   1.228 +  delete aActor;
   1.229 +  return true;
   1.230 +}
   1.231 +
   1.232 +PIndexedDBDeleteDatabaseRequestChild*
   1.233 +IndexedDBChild::AllocPIndexedDBDeleteDatabaseRequestChild(
   1.234 +                                        const nsString& aName,
   1.235 +                                        const PersistenceType& aPersistenceType)
   1.236 +{
   1.237 +  MOZ_CRASH("Caller is supposed to manually construct a request!");
   1.238 +}
   1.239 +
   1.240 +bool
   1.241 +IndexedDBChild::DeallocPIndexedDBDeleteDatabaseRequestChild(
   1.242 +                                   PIndexedDBDeleteDatabaseRequestChild* aActor)
   1.243 +{
   1.244 +  delete aActor;
   1.245 +  return true;
   1.246 +}
   1.247 +
   1.248 +/*******************************************************************************
   1.249 + * IndexedDBDatabaseChild
   1.250 + ******************************************************************************/
   1.251 +
   1.252 +IndexedDBDatabaseChild::IndexedDBDatabaseChild(const nsString& aName,
   1.253 +                                               uint64_t aVersion)
   1.254 +: mDatabase(nullptr), mName(aName), mVersion(aVersion)
   1.255 +{
   1.256 +  MOZ_COUNT_CTOR(IndexedDBDatabaseChild);
   1.257 +}
   1.258 +
   1.259 +IndexedDBDatabaseChild::~IndexedDBDatabaseChild()
   1.260 +{
   1.261 +  MOZ_COUNT_DTOR(IndexedDBDatabaseChild);
   1.262 +  MOZ_ASSERT(!mDatabase);
   1.263 +  MOZ_ASSERT(!mStrongDatabase);
   1.264 +}
   1.265 +
   1.266 +void
   1.267 +IndexedDBDatabaseChild::SetRequest(IDBOpenDBRequest* aRequest)
   1.268 +{
   1.269 +  MOZ_ASSERT(aRequest);
   1.270 +  MOZ_ASSERT(!mRequest);
   1.271 +
   1.272 +  mRequest = aRequest;
   1.273 +}
   1.274 +
   1.275 +void
   1.276 +IndexedDBDatabaseChild::Disconnect()
   1.277 +{
   1.278 +  const InfallibleTArray<PIndexedDBTransactionChild*>& transactions =
   1.279 +    ManagedPIndexedDBTransactionChild();
   1.280 +  for (uint32_t i = 0; i < transactions.Length(); ++i) {
   1.281 +    static_cast<IndexedDBTransactionChild*>(transactions[i])->Disconnect();
   1.282 +  }
   1.283 +}
   1.284 +
   1.285 +bool
   1.286 +IndexedDBDatabaseChild::EnsureDatabase(
   1.287 +                           IDBOpenDBRequest* aRequest,
   1.288 +                           const DatabaseInfoGuts& aDBInfo,
   1.289 +                           const InfallibleTArray<ObjectStoreInfoGuts>& aOSInfo)
   1.290 +{
   1.291 +  nsCString databaseId;
   1.292 +  if (mDatabase) {
   1.293 +    databaseId = mDatabase->Id();
   1.294 +  }
   1.295 +  else {
   1.296 +    QuotaManager::GetStorageId(aDBInfo.persistenceType, aDBInfo.origin,
   1.297 +                               Client::IDB, aDBInfo.name, databaseId);
   1.298 +  }
   1.299 +  MOZ_ASSERT(!databaseId.IsEmpty());
   1.300 +
   1.301 +  nsRefPtr<DatabaseInfo> dbInfo;
   1.302 +  if (DatabaseInfo::Get(databaseId, getter_AddRefs(dbInfo))) {
   1.303 +    dbInfo->version = aDBInfo.version;
   1.304 +  }
   1.305 +  else {
   1.306 +    nsRefPtr<DatabaseInfo> newInfo = new DatabaseInfo();
   1.307 +
   1.308 +    *static_cast<DatabaseInfoGuts*>(newInfo.get()) = aDBInfo;
   1.309 +    newInfo->id = databaseId;
   1.310 +
   1.311 +    if (!DatabaseInfo::Put(newInfo)) {
   1.312 +      NS_WARNING("Out of memory!");
   1.313 +      return false;
   1.314 +    }
   1.315 +
   1.316 +    newInfo.swap(dbInfo);
   1.317 +
   1.318 +    // This is more or less copied from IDBFactory::SetDatabaseMetadata.
   1.319 +    for (uint32_t i = 0; i < aOSInfo.Length(); i++) {
   1.320 +      nsRefPtr<ObjectStoreInfo> newInfo = new ObjectStoreInfo();
   1.321 +      *static_cast<ObjectStoreInfoGuts*>(newInfo.get()) = aOSInfo[i];
   1.322 +
   1.323 +      if (!dbInfo->PutObjectStore(newInfo)) {
   1.324 +        NS_WARNING("Out of memory!");
   1.325 +        return false;
   1.326 +      }
   1.327 +    }
   1.328 +  }
   1.329 +
   1.330 +  if (!mDatabase) {
   1.331 +    nsRefPtr<IDBDatabase> database =
   1.332 +      IDBDatabase::Create(aRequest, aRequest->Factory(), dbInfo.forget(),
   1.333 +                          aDBInfo.origin, nullptr, nullptr);
   1.334 +    if (!database) {
   1.335 +      NS_WARNING("Failed to create database!");
   1.336 +      return false;
   1.337 +    }
   1.338 +
   1.339 +    database->SetActor(this);
   1.340 +
   1.341 +    mDatabase = database;
   1.342 +    mStrongDatabase = database.forget();
   1.343 +  }
   1.344 +
   1.345 +  return true;
   1.346 +}
   1.347 +
   1.348 +void
   1.349 +IndexedDBDatabaseChild::ActorDestroy(ActorDestroyReason aWhy)
   1.350 +{
   1.351 +  if (mDatabase) {
   1.352 +    mDatabase->SetActor(static_cast<IndexedDBDatabaseChild*>(nullptr));
   1.353 +#ifdef DEBUG
   1.354 +    mDatabase = nullptr;
   1.355 +#endif
   1.356 +  }
   1.357 +}
   1.358 +
   1.359 +bool
   1.360 +IndexedDBDatabaseChild::RecvSuccess(
   1.361 +                           const DatabaseInfoGuts& aDBInfo,
   1.362 +                           const InfallibleTArray<ObjectStoreInfoGuts>& aOSInfo)
   1.363 +{
   1.364 +#ifdef DEBUG
   1.365 +  {
   1.366 +    IndexedDBChild* manager = static_cast<IndexedDBChild*>(Manager());
   1.367 +    MOZ_ASSERT(aDBInfo.origin == manager->ASCIIOrigin());
   1.368 +    MOZ_ASSERT(aDBInfo.name == mName);
   1.369 +    MOZ_ASSERT(!mVersion || aDBInfo.version == mVersion);
   1.370 +  }
   1.371 +#endif
   1.372 +
   1.373 +  MOZ_ASSERT(mRequest);
   1.374 +
   1.375 +  nsRefPtr<IDBOpenDBRequest> request;
   1.376 +  mRequest.swap(request);
   1.377 +
   1.378 +  nsRefPtr<AsyncConnectionHelper> openHelper;
   1.379 +  mOpenHelper.swap(openHelper);
   1.380 +
   1.381 +  if (!EnsureDatabase(request, aDBInfo, aOSInfo)) {
   1.382 +    return false;
   1.383 +  }
   1.384 +
   1.385 +  MOZ_ASSERT(mStrongDatabase);
   1.386 +  nsRefPtr<IDBDatabase> database;
   1.387 +  mStrongDatabase.swap(database);
   1.388 +
   1.389 +  if (openHelper) {
   1.390 +    request->Reset();
   1.391 +  }
   1.392 +  else {
   1.393 +    openHelper = new IPCOpenDatabaseHelper(mDatabase, request);
   1.394 +  }
   1.395 +
   1.396 +  ImmediateRunEventTarget target;
   1.397 +  if (NS_FAILED(openHelper->Dispatch(&target))) {
   1.398 +    NS_WARNING("Dispatch of IPCOpenDatabaseHelper failed!");
   1.399 +    return false;
   1.400 +  }
   1.401 +
   1.402 +  return true;
   1.403 +}
   1.404 +
   1.405 +bool
   1.406 +IndexedDBDatabaseChild::RecvError(const nsresult& aRv)
   1.407 +{
   1.408 +  MOZ_ASSERT(mRequest);
   1.409 +
   1.410 +  nsRefPtr<IDBOpenDBRequest> request;
   1.411 +  mRequest.swap(request);
   1.412 +
   1.413 +  nsRefPtr<IDBDatabase> database;
   1.414 +  mStrongDatabase.swap(database);
   1.415 +
   1.416 +  nsRefPtr<AsyncConnectionHelper> openHelper;
   1.417 +  mOpenHelper.swap(openHelper);
   1.418 +
   1.419 +  if (openHelper) {
   1.420 +    request->Reset();
   1.421 +  }
   1.422 +  else {
   1.423 +    openHelper = new IPCOpenDatabaseHelper(nullptr, request);
   1.424 +  }
   1.425 +
   1.426 +  openHelper->SetError(aRv);
   1.427 +
   1.428 +  ImmediateRunEventTarget target;
   1.429 +  if (NS_FAILED(openHelper->Dispatch(&target))) {
   1.430 +    NS_WARNING("Dispatch of IPCOpenDatabaseHelper failed!");
   1.431 +    return false;
   1.432 +  }
   1.433 +
   1.434 +  return true;
   1.435 +}
   1.436 +
   1.437 +bool
   1.438 +IndexedDBDatabaseChild::RecvBlocked(const uint64_t& aOldVersion)
   1.439 +{
   1.440 +  MOZ_ASSERT(mRequest);
   1.441 +  MOZ_ASSERT(!mDatabase);
   1.442 +
   1.443 +  nsCOMPtr<nsIRunnable> runnable =
   1.444 +    IDBVersionChangeEvent::CreateBlockedRunnable(mRequest, aOldVersion, mVersion);
   1.445 +
   1.446 +  ImmediateRunEventTarget target;
   1.447 +  if (NS_FAILED(target.Dispatch(runnable, NS_DISPATCH_NORMAL))) {
   1.448 +    NS_WARNING("Dispatch of blocked event failed!");
   1.449 +  }
   1.450 +
   1.451 +  return true;
   1.452 +}
   1.453 +
   1.454 +bool
   1.455 +IndexedDBDatabaseChild::RecvVersionChange(const uint64_t& aOldVersion,
   1.456 +                                          const uint64_t& aNewVersion)
   1.457 +{
   1.458 +  MOZ_ASSERT(mDatabase);
   1.459 +
   1.460 +  nsCOMPtr<nsIRunnable> runnable =
   1.461 +    new VersionChangeRunnable(mDatabase, aOldVersion, aNewVersion);
   1.462 +
   1.463 +  ImmediateRunEventTarget target;
   1.464 +  if (NS_FAILED(target.Dispatch(runnable, NS_DISPATCH_NORMAL))) {
   1.465 +    NS_WARNING("Dispatch of versionchange event failed!");
   1.466 +  }
   1.467 +
   1.468 +  return true;
   1.469 +}
   1.470 +
   1.471 +bool
   1.472 +IndexedDBDatabaseChild::RecvInvalidate()
   1.473 +{
   1.474 +  if (mDatabase) {
   1.475 +    mDatabase->Invalidate();
   1.476 +  }
   1.477 +  return true;
   1.478 +}
   1.479 +
   1.480 +bool
   1.481 +IndexedDBDatabaseChild::RecvPIndexedDBTransactionConstructor(
   1.482 +                                             PIndexedDBTransactionChild* aActor,
   1.483 +                                             const TransactionParams& aParams)
   1.484 +{
   1.485 +  // This only happens when the parent has created a version-change transaction
   1.486 +  // for us.
   1.487 +
   1.488 +  IndexedDBTransactionChild* actor =
   1.489 +    static_cast<IndexedDBTransactionChild*>(aActor);
   1.490 +  MOZ_ASSERT(!actor->GetTransaction());
   1.491 +
   1.492 +  MOZ_ASSERT(aParams.type() ==
   1.493 +             TransactionParams::TVersionChangeTransactionParams);
   1.494 +
   1.495 +  const VersionChangeTransactionParams& params =
   1.496 +    aParams.get_VersionChangeTransactionParams();
   1.497 +
   1.498 +  const DatabaseInfoGuts& dbInfo = params.dbInfo();
   1.499 +  const InfallibleTArray<ObjectStoreInfoGuts>& osInfo = params.osInfo();
   1.500 +  uint64_t oldVersion = params.oldVersion();
   1.501 +
   1.502 +  MOZ_ASSERT(dbInfo.origin ==
   1.503 +             static_cast<IndexedDBChild*>(Manager())->ASCIIOrigin());
   1.504 +  MOZ_ASSERT(dbInfo.name == mName);
   1.505 +  MOZ_ASSERT(!mVersion || dbInfo.version == mVersion);
   1.506 +  MOZ_ASSERT(!mVersion || oldVersion < mVersion);
   1.507 +
   1.508 +  MOZ_ASSERT(mRequest);
   1.509 +  MOZ_ASSERT(!mDatabase);
   1.510 +  MOZ_ASSERT(!mOpenHelper);
   1.511 +
   1.512 +  if (!EnsureDatabase(mRequest, dbInfo, osInfo)) {
   1.513 +    return false;
   1.514 +  }
   1.515 +
   1.516 +  nsRefPtr<IPCOpenDatabaseHelper> helper =
   1.517 +    new IPCOpenDatabaseHelper(mDatabase, mRequest);
   1.518 +
   1.519 +  Sequence<nsString> storesToOpen;
   1.520 +  nsRefPtr<IDBTransaction> transaction =
   1.521 +    IDBTransaction::CreateInternal(mDatabase, storesToOpen,
   1.522 +                                   IDBTransaction::VERSION_CHANGE, false, true);
   1.523 +  NS_ENSURE_TRUE(transaction, false);
   1.524 +
   1.525 +  nsRefPtr<IPCSetVersionHelper> versionHelper =
   1.526 +    new IPCSetVersionHelper(transaction, mRequest, oldVersion, mVersion);
   1.527 +
   1.528 +  mDatabase->EnterSetVersionTransaction();
   1.529 +  mDatabase->mPreviousDatabaseInfo->version = oldVersion;
   1.530 +
   1.531 +  actor->SetTransaction(transaction);
   1.532 +
   1.533 +  ImmediateRunEventTarget target;
   1.534 +  if (NS_FAILED(versionHelper->Dispatch(&target))) {
   1.535 +    NS_WARNING("Dispatch of IPCSetVersionHelper failed!");
   1.536 +    return false;
   1.537 +  }
   1.538 +
   1.539 +  mOpenHelper = helper.forget();
   1.540 +  return true;
   1.541 +}
   1.542 +
   1.543 +PIndexedDBTransactionChild*
   1.544 +IndexedDBDatabaseChild::AllocPIndexedDBTransactionChild(
   1.545 +                                               const TransactionParams& aParams)
   1.546 +{
   1.547 +  MOZ_ASSERT(aParams.type() ==
   1.548 +             TransactionParams::TVersionChangeTransactionParams);
   1.549 +  return new IndexedDBTransactionChild();
   1.550 +}
   1.551 +
   1.552 +bool
   1.553 +IndexedDBDatabaseChild::DeallocPIndexedDBTransactionChild(
   1.554 +                                             PIndexedDBTransactionChild* aActor)
   1.555 +{
   1.556 +  delete aActor;
   1.557 +  return true;
   1.558 +}
   1.559 +
   1.560 +/*******************************************************************************
   1.561 + * IndexedDBTransactionChild
   1.562 + ******************************************************************************/
   1.563 +
   1.564 +IndexedDBTransactionChild::IndexedDBTransactionChild()
   1.565 +: mTransaction(nullptr)
   1.566 +{
   1.567 +  MOZ_COUNT_CTOR(IndexedDBTransactionChild);
   1.568 +}
   1.569 +
   1.570 +IndexedDBTransactionChild::~IndexedDBTransactionChild()
   1.571 +{
   1.572 +  MOZ_COUNT_DTOR(IndexedDBTransactionChild);
   1.573 +  MOZ_ASSERT(!mTransaction);
   1.574 +  MOZ_ASSERT(!mStrongTransaction);
   1.575 +}
   1.576 +
   1.577 +void
   1.578 +IndexedDBTransactionChild::SetTransaction(IDBTransaction* aTransaction)
   1.579 +{
   1.580 +  MOZ_ASSERT(aTransaction);
   1.581 +  MOZ_ASSERT(!mTransaction);
   1.582 +
   1.583 +  aTransaction->SetActor(this);
   1.584 +
   1.585 +  mTransaction = aTransaction;
   1.586 +  mStrongTransaction = aTransaction;
   1.587 +}
   1.588 +
   1.589 +void
   1.590 +IndexedDBTransactionChild::Disconnect()
   1.591 +{
   1.592 +  const InfallibleTArray<PIndexedDBObjectStoreChild*>& objectStores =
   1.593 +    ManagedPIndexedDBObjectStoreChild();
   1.594 +  for (uint32_t i = 0; i < objectStores.Length(); ++i) {
   1.595 +    static_cast<IndexedDBObjectStoreChild*>(objectStores[i])->Disconnect();
   1.596 +  }
   1.597 +}
   1.598 +
   1.599 +void
   1.600 +IndexedDBTransactionChild::FireCompleteEvent(nsresult aRv)
   1.601 +{
   1.602 +  MOZ_ASSERT(mTransaction);
   1.603 +  MOZ_ASSERT(mStrongTransaction);
   1.604 +
   1.605 +  nsRefPtr<IDBTransaction> transaction;
   1.606 +  mStrongTransaction.swap(transaction);
   1.607 +
   1.608 +  if (transaction->GetMode() == IDBTransaction::VERSION_CHANGE) {
   1.609 +    transaction->Database()->ExitSetVersionTransaction();
   1.610 +  }
   1.611 +
   1.612 +  nsRefPtr<CommitHelper> helper = new CommitHelper(transaction, aRv);
   1.613 +
   1.614 +  ImmediateRunEventTarget target;
   1.615 +  if (NS_FAILED(target.Dispatch(helper, NS_DISPATCH_NORMAL))) {
   1.616 +    NS_WARNING("Dispatch of CommitHelper failed!");
   1.617 +  }
   1.618 +}
   1.619 +
   1.620 +void
   1.621 +IndexedDBTransactionChild::ActorDestroy(ActorDestroyReason aWhy)
   1.622 +{
   1.623 +  if (mStrongTransaction) {
   1.624 +    // We're being torn down before we received a complete event from the parent
   1.625 +    // so fake one here.
   1.626 +    FireCompleteEvent(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
   1.627 +
   1.628 +    MOZ_ASSERT(!mStrongTransaction);
   1.629 +  }
   1.630 +
   1.631 +  if (mTransaction) {
   1.632 +    mTransaction->SetActor(static_cast<IndexedDBTransactionChild*>(nullptr));
   1.633 +#ifdef DEBUG
   1.634 +    mTransaction = nullptr;
   1.635 +#endif
   1.636 +  }
   1.637 +}
   1.638 +
   1.639 +bool
   1.640 +IndexedDBTransactionChild::RecvComplete(const CompleteParams& aParams)
   1.641 +{
   1.642 +  MOZ_ASSERT(mTransaction);
   1.643 +  MOZ_ASSERT(mStrongTransaction);
   1.644 +
   1.645 +  nsresult resultCode;
   1.646 +
   1.647 +  switch (aParams.type()) {
   1.648 +    case CompleteParams::TCompleteResult:
   1.649 +      resultCode = NS_OK;
   1.650 +      break;
   1.651 +    case CompleteParams::TAbortResult:
   1.652 +      resultCode = aParams.get_AbortResult().errorCode();
   1.653 +      if (NS_SUCCEEDED(resultCode)) {
   1.654 +        resultCode = NS_ERROR_DOM_INDEXEDDB_ABORT_ERR;
   1.655 +      }
   1.656 +      break;
   1.657 +
   1.658 +    default:
   1.659 +      MOZ_CRASH("Unknown union type!");
   1.660 +  }
   1.661 +
   1.662 +  FireCompleteEvent(resultCode);
   1.663 +  return true;
   1.664 +}
   1.665 +
   1.666 +PIndexedDBObjectStoreChild*
   1.667 +IndexedDBTransactionChild::AllocPIndexedDBObjectStoreChild(
   1.668 +                                    const ObjectStoreConstructorParams& aParams)
   1.669 +{
   1.670 +  MOZ_CRASH("Caller is supposed to manually construct an object store!");
   1.671 +}
   1.672 +
   1.673 +bool
   1.674 +IndexedDBTransactionChild::DeallocPIndexedDBObjectStoreChild(
   1.675 +                                             PIndexedDBObjectStoreChild* aActor)
   1.676 +{
   1.677 +  delete aActor;
   1.678 +  return true;
   1.679 +}
   1.680 +
   1.681 +/*******************************************************************************
   1.682 + * IndexedDBObjectStoreChild
   1.683 + ******************************************************************************/
   1.684 +
   1.685 +IndexedDBObjectStoreChild::IndexedDBObjectStoreChild(
   1.686 +                                                   IDBObjectStore* aObjectStore)
   1.687 +: mObjectStore(aObjectStore)
   1.688 +{
   1.689 +  MOZ_COUNT_CTOR(IndexedDBObjectStoreChild);
   1.690 +  aObjectStore->SetActor(this);
   1.691 +}
   1.692 +
   1.693 +IndexedDBObjectStoreChild::~IndexedDBObjectStoreChild()
   1.694 +{
   1.695 +  MOZ_COUNT_DTOR(IndexedDBObjectStoreChild);
   1.696 +  MOZ_ASSERT(!mObjectStore);
   1.697 +}
   1.698 +
   1.699 +void
   1.700 +IndexedDBObjectStoreChild::Disconnect()
   1.701 +{
   1.702 +  const InfallibleTArray<PIndexedDBRequestChild*>& requests =
   1.703 +    ManagedPIndexedDBRequestChild();
   1.704 +  for (uint32_t i = 0; i < requests.Length(); ++i) {
   1.705 +    static_cast<IndexedDBRequestChildBase*>(requests[i])->Disconnect();
   1.706 +  }
   1.707 +
   1.708 +  const InfallibleTArray<PIndexedDBIndexChild*>& indexes =
   1.709 +    ManagedPIndexedDBIndexChild();
   1.710 +  for (uint32_t i = 0; i < indexes.Length(); ++i) {
   1.711 +    static_cast<IndexedDBIndexChild*>(indexes[i])->Disconnect();
   1.712 +  }
   1.713 +
   1.714 +  const InfallibleTArray<PIndexedDBCursorChild*>& cursors =
   1.715 +    ManagedPIndexedDBCursorChild();
   1.716 +  for (uint32_t i = 0; i < cursors.Length(); ++i) {
   1.717 +    static_cast<IndexedDBCursorChild*>(cursors[i])->Disconnect();
   1.718 +  }
   1.719 +}
   1.720 +
   1.721 +void
   1.722 +IndexedDBObjectStoreChild::ActorDestroy(ActorDestroyReason aWhy)
   1.723 +{
   1.724 +  if (mObjectStore) {
   1.725 +    mObjectStore->SetActor(static_cast<IndexedDBObjectStoreChild*>(nullptr));
   1.726 +#ifdef DEBUG
   1.727 +    mObjectStore = nullptr;
   1.728 +#endif
   1.729 +  }
   1.730 +}
   1.731 +
   1.732 +bool
   1.733 +IndexedDBObjectStoreChild::RecvPIndexedDBCursorConstructor(
   1.734 +                              PIndexedDBCursorChild* aActor,
   1.735 +                              const ObjectStoreCursorConstructorParams& aParams)
   1.736 +{
   1.737 +  IndexedDBCursorChild* actor = static_cast<IndexedDBCursorChild*>(aActor);
   1.738 +
   1.739 +  IndexedDBObjectStoreRequestChild* requestActor =
   1.740 +    static_cast<IndexedDBObjectStoreRequestChild*>(aParams.requestChild());
   1.741 +  NS_ASSERTION(requestActor, "Must have an actor here!");
   1.742 +
   1.743 +  nsRefPtr<IDBRequest> request = requestActor->GetRequest();
   1.744 +  NS_ASSERTION(request, "Must have a request here!");
   1.745 +
   1.746 +  size_t direction = static_cast<size_t>(aParams.direction());
   1.747 +
   1.748 +  nsRefPtr<IDBCursor> cursor;
   1.749 +  nsresult rv;
   1.750 +
   1.751 +  typedef ipc::OptionalStructuredCloneReadInfo CursorUnionType;
   1.752 +
   1.753 +  switch (aParams.optionalCloneInfo().type()) {
   1.754 +    case CursorUnionType::TSerializedStructuredCloneReadInfo: {
   1.755 +      nsTArray<StructuredCloneFile> blobs;
   1.756 +      IDBObjectStore::ConvertActorsToBlobs(aParams.blobsChild(), blobs);
   1.757 +
   1.758 +      const SerializedStructuredCloneReadInfo& cloneInfo =
   1.759 +        aParams.optionalCloneInfo().get_SerializedStructuredCloneReadInfo();
   1.760 +
   1.761 +      rv = mObjectStore->OpenCursorFromChildProcess(request, direction,
   1.762 +                                                    aParams.key(), cloneInfo,
   1.763 +                                                    blobs,
   1.764 +                                                    getter_AddRefs(cursor));
   1.765 +      NS_ENSURE_SUCCESS(rv, false);
   1.766 +
   1.767 +      MOZ_ASSERT(blobs.IsEmpty(), "Should have swapped blob elements!");
   1.768 +    } break;
   1.769 +
   1.770 +    case CursorUnionType::Tvoid_t:
   1.771 +      MOZ_ASSERT(aParams.blobsChild().IsEmpty());
   1.772 +
   1.773 +      rv = mObjectStore->OpenCursorFromChildProcess(request, direction,
   1.774 +                                                    aParams.key(),
   1.775 +                                                    getter_AddRefs(cursor));
   1.776 +      NS_ENSURE_SUCCESS(rv, false);
   1.777 +      break;
   1.778 +
   1.779 +    default:
   1.780 +      MOZ_CRASH("Unknown union type!");
   1.781 +  }
   1.782 +
   1.783 +  actor->SetCursor(cursor);
   1.784 +  return true;
   1.785 +}
   1.786 +
   1.787 +PIndexedDBRequestChild*
   1.788 +IndexedDBObjectStoreChild::AllocPIndexedDBRequestChild(
   1.789 +                                        const ObjectStoreRequestParams& aParams)
   1.790 +{
   1.791 +  MOZ_CRASH("Caller is supposed to manually construct a request!");
   1.792 +}
   1.793 +
   1.794 +bool
   1.795 +IndexedDBObjectStoreChild::DeallocPIndexedDBRequestChild(
   1.796 +                                                 PIndexedDBRequestChild* aActor)
   1.797 +{
   1.798 +  delete aActor;
   1.799 +  return false;
   1.800 +}
   1.801 +
   1.802 +PIndexedDBIndexChild*
   1.803 +IndexedDBObjectStoreChild::AllocPIndexedDBIndexChild(
   1.804 +                                          const IndexConstructorParams& aParams)
   1.805 +{
   1.806 +  MOZ_CRASH("Caller is supposed to manually construct an index!");
   1.807 +}
   1.808 +
   1.809 +bool
   1.810 +IndexedDBObjectStoreChild::DeallocPIndexedDBIndexChild(PIndexedDBIndexChild* aActor)
   1.811 +{
   1.812 +  delete aActor;
   1.813 +  return true;
   1.814 +}
   1.815 +
   1.816 +PIndexedDBCursorChild*
   1.817 +IndexedDBObjectStoreChild::AllocPIndexedDBCursorChild(
   1.818 +                              const ObjectStoreCursorConstructorParams& aParams)
   1.819 +{
   1.820 +  return new IndexedDBCursorChild();
   1.821 +}
   1.822 +
   1.823 +bool
   1.824 +IndexedDBObjectStoreChild::DeallocPIndexedDBCursorChild(
   1.825 +                                                  PIndexedDBCursorChild* aActor)
   1.826 +{
   1.827 +  delete aActor;
   1.828 +  return true;
   1.829 +}
   1.830 +
   1.831 +/*******************************************************************************
   1.832 + * IndexedDBIndexChild
   1.833 + ******************************************************************************/
   1.834 +
   1.835 +IndexedDBIndexChild::IndexedDBIndexChild(IDBIndex* aIndex)
   1.836 +: mIndex(aIndex)
   1.837 +{
   1.838 +  MOZ_COUNT_CTOR(IndexedDBIndexChild);
   1.839 +  aIndex->SetActor(this);
   1.840 +}
   1.841 +
   1.842 +IndexedDBIndexChild::~IndexedDBIndexChild()
   1.843 +{
   1.844 +  MOZ_COUNT_DTOR(IndexedDBIndexChild);
   1.845 +  MOZ_ASSERT(!mIndex);
   1.846 +}
   1.847 +
   1.848 +void
   1.849 +IndexedDBIndexChild::Disconnect()
   1.850 +{
   1.851 +  const InfallibleTArray<PIndexedDBRequestChild*>& requests =
   1.852 +    ManagedPIndexedDBRequestChild();
   1.853 +  for (uint32_t i = 0; i < requests.Length(); ++i) {
   1.854 +    static_cast<IndexedDBRequestChildBase*>(requests[i])->Disconnect();
   1.855 +  }
   1.856 +
   1.857 +  const InfallibleTArray<PIndexedDBCursorChild*>& cursors =
   1.858 +    ManagedPIndexedDBCursorChild();
   1.859 +  for (uint32_t i = 0; i < cursors.Length(); ++i) {
   1.860 +    static_cast<IndexedDBCursorChild*>(cursors[i])->Disconnect();
   1.861 +  }
   1.862 +}
   1.863 +
   1.864 +void
   1.865 +IndexedDBIndexChild::ActorDestroy(ActorDestroyReason aWhy)
   1.866 +{
   1.867 +  if (mIndex) {
   1.868 +    mIndex->SetActor(static_cast<IndexedDBIndexChild*>(nullptr));
   1.869 +#ifdef DEBUG
   1.870 +    mIndex = nullptr;
   1.871 +#endif
   1.872 +  }
   1.873 +}
   1.874 +
   1.875 +bool
   1.876 +IndexedDBIndexChild::RecvPIndexedDBCursorConstructor(
   1.877 +                                    PIndexedDBCursorChild* aActor,
   1.878 +                                    const IndexCursorConstructorParams& aParams)
   1.879 +{
   1.880 +  IndexedDBCursorChild* actor = static_cast<IndexedDBCursorChild*>(aActor);
   1.881 +
   1.882 +  IndexedDBObjectStoreRequestChild* requestActor =
   1.883 +    static_cast<IndexedDBObjectStoreRequestChild*>(aParams.requestChild());
   1.884 +  NS_ASSERTION(requestActor, "Must have an actor here!");
   1.885 +
   1.886 +  nsRefPtr<IDBRequest> request = requestActor->GetRequest();
   1.887 +  NS_ASSERTION(request, "Must have a request here!");
   1.888 +
   1.889 +  size_t direction = static_cast<size_t>(aParams.direction());
   1.890 +
   1.891 +  nsRefPtr<IDBCursor> cursor;
   1.892 +  nsresult rv;
   1.893 +
   1.894 +  typedef ipc::OptionalStructuredCloneReadInfo CursorUnionType;
   1.895 +
   1.896 +  switch (aParams.optionalCloneInfo().type()) {
   1.897 +    case CursorUnionType::TSerializedStructuredCloneReadInfo: {
   1.898 +      nsTArray<StructuredCloneFile> blobs;
   1.899 +      IDBObjectStore::ConvertActorsToBlobs(aParams.blobsChild(), blobs);
   1.900 +
   1.901 +      const SerializedStructuredCloneReadInfo& cloneInfo =
   1.902 +        aParams.optionalCloneInfo().get_SerializedStructuredCloneReadInfo();
   1.903 +
   1.904 +      rv = mIndex->OpenCursorFromChildProcess(request, direction, aParams.key(),
   1.905 +                                              aParams.objectKey(), cloneInfo,
   1.906 +                                              blobs,
   1.907 +                                              getter_AddRefs(cursor));
   1.908 +      NS_ENSURE_SUCCESS(rv, false);
   1.909 +    } break;
   1.910 +
   1.911 +    case CursorUnionType::Tvoid_t:
   1.912 +      MOZ_ASSERT(aParams.blobsChild().IsEmpty());
   1.913 +
   1.914 +      rv = mIndex->OpenCursorFromChildProcess(request, direction, aParams.key(),
   1.915 +                                              aParams.objectKey(),
   1.916 +                                              getter_AddRefs(cursor));
   1.917 +      NS_ENSURE_SUCCESS(rv, false);
   1.918 +      break;
   1.919 +
   1.920 +    default:
   1.921 +      MOZ_CRASH("Unknown union type!");
   1.922 +  }
   1.923 +
   1.924 +  actor->SetCursor(cursor);
   1.925 +  return true;
   1.926 +}
   1.927 +
   1.928 +PIndexedDBRequestChild*
   1.929 +IndexedDBIndexChild::AllocPIndexedDBRequestChild(const IndexRequestParams& aParams)
   1.930 +{
   1.931 +  MOZ_CRASH("Caller is supposed to manually construct a request!");
   1.932 +}
   1.933 +
   1.934 +bool
   1.935 +IndexedDBIndexChild::DeallocPIndexedDBRequestChild(PIndexedDBRequestChild* aActor)
   1.936 +{
   1.937 +  delete aActor;
   1.938 +  return true;
   1.939 +}
   1.940 +
   1.941 +PIndexedDBCursorChild*
   1.942 +IndexedDBIndexChild::AllocPIndexedDBCursorChild(
   1.943 +                                    const IndexCursorConstructorParams& aParams)
   1.944 +{
   1.945 +  return new IndexedDBCursorChild();
   1.946 +}
   1.947 +
   1.948 +bool
   1.949 +IndexedDBIndexChild::DeallocPIndexedDBCursorChild(PIndexedDBCursorChild* aActor)
   1.950 +{
   1.951 +  delete aActor;
   1.952 +  return true;
   1.953 +}
   1.954 +
   1.955 +/*******************************************************************************
   1.956 + * IndexedDBCursorChild
   1.957 + ******************************************************************************/
   1.958 +
   1.959 +IndexedDBCursorChild::IndexedDBCursorChild()
   1.960 +: mCursor(nullptr)
   1.961 +{
   1.962 +  MOZ_COUNT_CTOR(IndexedDBCursorChild);
   1.963 +}
   1.964 +
   1.965 +IndexedDBCursorChild::~IndexedDBCursorChild()
   1.966 +{
   1.967 +  MOZ_COUNT_DTOR(IndexedDBCursorChild);
   1.968 +  MOZ_ASSERT(!mCursor);
   1.969 +  MOZ_ASSERT(!mStrongCursor);
   1.970 +}
   1.971 +
   1.972 +void
   1.973 +IndexedDBCursorChild::SetCursor(IDBCursor* aCursor)
   1.974 +{
   1.975 +  MOZ_ASSERT(aCursor);
   1.976 +  MOZ_ASSERT(!mCursor);
   1.977 +
   1.978 +  aCursor->SetActor(this);
   1.979 +
   1.980 +  mCursor = aCursor;
   1.981 +  mStrongCursor = aCursor;
   1.982 +}
   1.983 +
   1.984 +void
   1.985 +IndexedDBCursorChild::Disconnect()
   1.986 +{
   1.987 +  const InfallibleTArray<PIndexedDBRequestChild*>& requests =
   1.988 +    ManagedPIndexedDBRequestChild();
   1.989 +  for (uint32_t i = 0; i < requests.Length(); ++i) {
   1.990 +    static_cast<IndexedDBRequestChildBase*>(requests[i])->Disconnect();
   1.991 +  }
   1.992 +}
   1.993 +
   1.994 +void
   1.995 +IndexedDBCursorChild::ActorDestroy(ActorDestroyReason aWhy)
   1.996 +{
   1.997 +  if (mCursor) {
   1.998 +    mCursor->SetActor(static_cast<IndexedDBCursorChild*>(nullptr));
   1.999 +#ifdef DEBUG
  1.1000 +    mCursor = nullptr;
  1.1001 +#endif
  1.1002 +  }
  1.1003 +}
  1.1004 +
  1.1005 +PIndexedDBRequestChild*
  1.1006 +IndexedDBCursorChild::AllocPIndexedDBRequestChild(const CursorRequestParams& aParams)
  1.1007 +{
  1.1008 +  MOZ_CRASH("Caller is supposed to manually construct a request!");
  1.1009 +}
  1.1010 +
  1.1011 +bool
  1.1012 +IndexedDBCursorChild::DeallocPIndexedDBRequestChild(PIndexedDBRequestChild* aActor)
  1.1013 +{
  1.1014 +  delete aActor;
  1.1015 +  return true;
  1.1016 +}
  1.1017 +
  1.1018 +/*******************************************************************************
  1.1019 + * IndexedDBRequestChildBase
  1.1020 + ******************************************************************************/
  1.1021 +
  1.1022 +IndexedDBRequestChildBase::IndexedDBRequestChildBase(
  1.1023 +                                                 AsyncConnectionHelper* aHelper)
  1.1024 +: mHelper(aHelper)
  1.1025 +{
  1.1026 +  MOZ_COUNT_CTOR(IndexedDBRequestChildBase);
  1.1027 +}
  1.1028 +
  1.1029 +IndexedDBRequestChildBase::~IndexedDBRequestChildBase()
  1.1030 +{
  1.1031 +  MOZ_COUNT_DTOR(IndexedDBRequestChildBase);
  1.1032 +}
  1.1033 +
  1.1034 +IDBRequest*
  1.1035 +IndexedDBRequestChildBase::GetRequest() const
  1.1036 +{
  1.1037 +  return mHelper ? mHelper->GetRequest() : nullptr;
  1.1038 +}
  1.1039 +
  1.1040 +void
  1.1041 +IndexedDBRequestChildBase::Disconnect()
  1.1042 +{
  1.1043 +  if (mHelper) {
  1.1044 +    IDBRequest* request = mHelper->GetRequest();
  1.1045 +
  1.1046 +    if (request->IsPending()) {
  1.1047 +      request->SetError(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
  1.1048 +
  1.1049 +      IDBTransaction* transaction = mHelper->GetTransaction();
  1.1050 +      if (transaction) {
  1.1051 +        transaction->OnRequestDisconnected();
  1.1052 +      }
  1.1053 +    }
  1.1054 +  }
  1.1055 +}
  1.1056 +
  1.1057 +bool
  1.1058 +IndexedDBRequestChildBase::Recv__delete__(const ResponseValue& aResponse)
  1.1059 +{
  1.1060 +  MOZ_CRASH("This should be overridden!");
  1.1061 +}
  1.1062 +
  1.1063 +/*******************************************************************************
  1.1064 + * IndexedDBObjectStoreRequestChild
  1.1065 + ******************************************************************************/
  1.1066 +
  1.1067 +IndexedDBObjectStoreRequestChild::IndexedDBObjectStoreRequestChild(
  1.1068 +                                                 AsyncConnectionHelper* aHelper,
  1.1069 +                                                 IDBObjectStore* aObjectStore,
  1.1070 +                                                 RequestType aRequestType)
  1.1071 +: IndexedDBRequestChildBase(aHelper), mObjectStore(aObjectStore),
  1.1072 +  mRequestType(aRequestType)
  1.1073 +{
  1.1074 +  MOZ_COUNT_CTOR(IndexedDBObjectStoreRequestChild);
  1.1075 +  MOZ_ASSERT(aHelper);
  1.1076 +  MOZ_ASSERT(aObjectStore);
  1.1077 +  MOZ_ASSERT(aRequestType > ParamsUnionType::T__None &&
  1.1078 +             aRequestType <= ParamsUnionType::T__Last);
  1.1079 +}
  1.1080 +
  1.1081 +IndexedDBObjectStoreRequestChild::~IndexedDBObjectStoreRequestChild()
  1.1082 +{
  1.1083 +  MOZ_COUNT_DTOR(IndexedDBObjectStoreRequestChild);
  1.1084 +}
  1.1085 +
  1.1086 +bool
  1.1087 +IndexedDBObjectStoreRequestChild::Recv__delete__(const ResponseValue& aResponse)
  1.1088 +{
  1.1089 +  switch (aResponse.type()) {
  1.1090 +    case ResponseValue::Tnsresult:
  1.1091 +      break;
  1.1092 +    case ResponseValue::TGetResponse:
  1.1093 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TGetParams);
  1.1094 +      break;
  1.1095 +    case ResponseValue::TGetAllResponse:
  1.1096 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TGetAllParams);
  1.1097 +      break;
  1.1098 +    case ResponseValue::TGetAllKeysResponse:
  1.1099 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TGetAllKeysParams);
  1.1100 +      break;
  1.1101 +    case ResponseValue::TAddResponse:
  1.1102 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TAddParams);
  1.1103 +      break;
  1.1104 +    case ResponseValue::TPutResponse:
  1.1105 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TPutParams);
  1.1106 +      break;
  1.1107 +    case ResponseValue::TDeleteResponse:
  1.1108 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TDeleteParams);
  1.1109 +      break;
  1.1110 +    case ResponseValue::TClearResponse:
  1.1111 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TClearParams);
  1.1112 +      break;
  1.1113 +    case ResponseValue::TCountResponse:
  1.1114 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TCountParams);
  1.1115 +      break;
  1.1116 +    case ResponseValue::TOpenCursorResponse:
  1.1117 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TOpenCursorParams ||
  1.1118 +                 mRequestType == ParamsUnionType::TOpenKeyCursorParams);
  1.1119 +      break;
  1.1120 +
  1.1121 +    default:
  1.1122 +      MOZ_CRASH("Received invalid response parameters!");
  1.1123 +  }
  1.1124 +
  1.1125 +  nsresult rv = mHelper->OnParentProcessRequestComplete(aResponse);
  1.1126 +  NS_ENSURE_SUCCESS(rv, false);
  1.1127 +
  1.1128 +  return true;
  1.1129 +}
  1.1130 +
  1.1131 +/*******************************************************************************
  1.1132 + * IndexedDBIndexRequestChild
  1.1133 + ******************************************************************************/
  1.1134 +
  1.1135 +IndexedDBIndexRequestChild::IndexedDBIndexRequestChild(
  1.1136 +                                                 AsyncConnectionHelper* aHelper,
  1.1137 +                                                 IDBIndex* aIndex,
  1.1138 +                                                 RequestType aRequestType)
  1.1139 +: IndexedDBRequestChildBase(aHelper), mIndex(aIndex), mRequestType(aRequestType)
  1.1140 +{
  1.1141 +  MOZ_COUNT_CTOR(IndexedDBIndexRequestChild);
  1.1142 +  MOZ_ASSERT(aHelper);
  1.1143 +  MOZ_ASSERT(aIndex);
  1.1144 +  MOZ_ASSERT(aRequestType > ParamsUnionType::T__None &&
  1.1145 +             aRequestType <= ParamsUnionType::T__Last);
  1.1146 +}
  1.1147 +
  1.1148 +IndexedDBIndexRequestChild::~IndexedDBIndexRequestChild()
  1.1149 +{
  1.1150 +  MOZ_COUNT_DTOR(IndexedDBIndexRequestChild);
  1.1151 +}
  1.1152 +
  1.1153 +bool
  1.1154 +IndexedDBIndexRequestChild::Recv__delete__(const ResponseValue& aResponse)
  1.1155 +{
  1.1156 +  switch (aResponse.type()) {
  1.1157 +    case ResponseValue::Tnsresult:
  1.1158 +      break;
  1.1159 +    case ResponseValue::TGetResponse:
  1.1160 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TGetParams);
  1.1161 +      break;
  1.1162 +    case ResponseValue::TGetKeyResponse:
  1.1163 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TGetKeyParams);
  1.1164 +      break;
  1.1165 +    case ResponseValue::TGetAllResponse:
  1.1166 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TGetAllParams);
  1.1167 +      break;
  1.1168 +    case ResponseValue::TGetAllKeysResponse:
  1.1169 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TGetAllKeysParams);
  1.1170 +      break;
  1.1171 +    case ResponseValue::TCountResponse:
  1.1172 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TCountParams);
  1.1173 +      break;
  1.1174 +    case ResponseValue::TOpenCursorResponse:
  1.1175 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TOpenCursorParams ||
  1.1176 +                 mRequestType == ParamsUnionType::TOpenKeyCursorParams);
  1.1177 +      break;
  1.1178 +
  1.1179 +    default:
  1.1180 +      MOZ_CRASH("Received invalid response parameters!");
  1.1181 +  }
  1.1182 +
  1.1183 +  nsresult rv = mHelper->OnParentProcessRequestComplete(aResponse);
  1.1184 +  NS_ENSURE_SUCCESS(rv, false);
  1.1185 +
  1.1186 +  return true;
  1.1187 +}
  1.1188 +
  1.1189 +/*******************************************************************************
  1.1190 + * IndexedDBCursorRequestChild
  1.1191 + ******************************************************************************/
  1.1192 +
  1.1193 +IndexedDBCursorRequestChild::IndexedDBCursorRequestChild(
  1.1194 +                                                 AsyncConnectionHelper* aHelper,
  1.1195 +                                                 IDBCursor* aCursor,
  1.1196 +                                                 RequestType aRequestType)
  1.1197 +: IndexedDBRequestChildBase(aHelper), mCursor(aCursor),
  1.1198 +  mRequestType(aRequestType)
  1.1199 +{
  1.1200 +  MOZ_COUNT_CTOR(IndexedDBCursorRequestChild);
  1.1201 +  MOZ_ASSERT(aHelper);
  1.1202 +  MOZ_ASSERT(aCursor);
  1.1203 +  MOZ_ASSERT(aRequestType > ParamsUnionType::T__None &&
  1.1204 +             aRequestType <= ParamsUnionType::T__Last);
  1.1205 +}
  1.1206 +
  1.1207 +IndexedDBCursorRequestChild::~IndexedDBCursorRequestChild()
  1.1208 +{
  1.1209 +  MOZ_COUNT_DTOR(IndexedDBCursorRequestChild);
  1.1210 +}
  1.1211 +
  1.1212 +bool
  1.1213 +IndexedDBCursorRequestChild::Recv__delete__(const ResponseValue& aResponse)
  1.1214 +{
  1.1215 +  switch (aResponse.type()) {
  1.1216 +    case ResponseValue::Tnsresult:
  1.1217 +      break;
  1.1218 +    case ResponseValue::TContinueResponse:
  1.1219 +      MOZ_ASSERT(mRequestType == ParamsUnionType::TContinueParams);
  1.1220 +      break;
  1.1221 +
  1.1222 +    default:
  1.1223 +      MOZ_CRASH("Received invalid response parameters!");
  1.1224 +  }
  1.1225 +
  1.1226 +  nsresult rv = mHelper->OnParentProcessRequestComplete(aResponse);
  1.1227 +  NS_ENSURE_SUCCESS(rv, false);
  1.1228 +
  1.1229 +  return true;
  1.1230 +}
  1.1231 +
  1.1232 +/*******************************************************************************
  1.1233 + * IndexedDBDeleteDatabaseRequestChild
  1.1234 + ******************************************************************************/
  1.1235 +
  1.1236 +IndexedDBDeleteDatabaseRequestChild::IndexedDBDeleteDatabaseRequestChild(
  1.1237 +                                                 IDBFactory* aFactory,
  1.1238 +                                                 IDBOpenDBRequest* aOpenRequest,
  1.1239 +                                                 const nsACString& aDatabaseId)
  1.1240 +: mFactory(aFactory), mOpenRequest(aOpenRequest), mDatabaseId(aDatabaseId)
  1.1241 +{
  1.1242 +  MOZ_COUNT_CTOR(IndexedDBDeleteDatabaseRequestChild);
  1.1243 +  MOZ_ASSERT(aFactory);
  1.1244 +  MOZ_ASSERT(aOpenRequest);
  1.1245 +  MOZ_ASSERT(!aDatabaseId.IsEmpty());
  1.1246 +}
  1.1247 +
  1.1248 +IndexedDBDeleteDatabaseRequestChild::~IndexedDBDeleteDatabaseRequestChild()
  1.1249 +{
  1.1250 +  MOZ_COUNT_DTOR(IndexedDBDeleteDatabaseRequestChild);
  1.1251 +}
  1.1252 +
  1.1253 +bool
  1.1254 +IndexedDBDeleteDatabaseRequestChild::Recv__delete__(const nsresult& aRv)
  1.1255 +{
  1.1256 +  nsRefPtr<IPCDeleteDatabaseHelper> helper =
  1.1257 +    new IPCDeleteDatabaseHelper(mOpenRequest);
  1.1258 +
  1.1259 +  if (NS_SUCCEEDED(aRv)) {
  1.1260 +    DatabaseInfo::Remove(mDatabaseId);
  1.1261 +  }
  1.1262 +  else {
  1.1263 +    helper->SetError(aRv);
  1.1264 +  }
  1.1265 +
  1.1266 +  ImmediateRunEventTarget target;
  1.1267 +  if (NS_FAILED(helper->Dispatch(&target))) {
  1.1268 +    NS_WARNING("Dispatch of IPCSetVersionHelper failed!");
  1.1269 +    return false;
  1.1270 +  }
  1.1271 +
  1.1272 +  return true;
  1.1273 +}
  1.1274 +
  1.1275 +bool
  1.1276 +IndexedDBDeleteDatabaseRequestChild::RecvBlocked(
  1.1277 +                                                const uint64_t& aCurrentVersion)
  1.1278 +{
  1.1279 +  MOZ_ASSERT(mOpenRequest);
  1.1280 +
  1.1281 +  nsCOMPtr<nsIRunnable> runnable =
  1.1282 +    IDBVersionChangeEvent::CreateBlockedRunnable(mOpenRequest,
  1.1283 +                                                 aCurrentVersion, 0);
  1.1284 +
  1.1285 +  ImmediateRunEventTarget target;
  1.1286 +  if (NS_FAILED(target.Dispatch(runnable, NS_DISPATCH_NORMAL))) {
  1.1287 +    NS_WARNING("Dispatch of blocked event failed!");
  1.1288 +  }
  1.1289 +
  1.1290 +  return true;
  1.1291 +}
  1.1292 +
  1.1293 +/*******************************************************************************
  1.1294 + * Helpers
  1.1295 + ******************************************************************************/
  1.1296 +
  1.1297 +nsresult
  1.1298 +IPCOpenDatabaseHelper::UnpackResponseFromParentProcess(
  1.1299 +                                            const ResponseValue& aResponseValue)
  1.1300 +{
  1.1301 +  NS_NOTREACHED("Should never get here!");
  1.1302 +  return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
  1.1303 +}
  1.1304 +
  1.1305 +AsyncConnectionHelper::ChildProcessSendResult
  1.1306 +IPCOpenDatabaseHelper::SendResponseToChildProcess(nsresult aResultCode)
  1.1307 +{
  1.1308 +  MOZ_CRASH("Don't call me!");
  1.1309 +}
  1.1310 +
  1.1311 +nsresult
  1.1312 +IPCOpenDatabaseHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
  1.1313 +{
  1.1314 +  MOZ_CRASH("Don't call me!");
  1.1315 +}
  1.1316 +
  1.1317 +nsresult
  1.1318 +IPCOpenDatabaseHelper::GetSuccessResult(JSContext* aCx, JS::MutableHandle<JS::Value> aVal)
  1.1319 +{
  1.1320 +  return WrapNative(aCx, NS_ISUPPORTS_CAST(EventTarget*, mDatabase),
  1.1321 +                    aVal);
  1.1322 +}
  1.1323 +
  1.1324 +nsresult
  1.1325 +IPCSetVersionHelper::UnpackResponseFromParentProcess(
  1.1326 +                                            const ResponseValue& aResponseValue)
  1.1327 +{
  1.1328 +  NS_NOTREACHED("Should never get here!");
  1.1329 +  return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
  1.1330 +}
  1.1331 +
  1.1332 +AsyncConnectionHelper::ChildProcessSendResult
  1.1333 +IPCSetVersionHelper::SendResponseToChildProcess(nsresult aResultCode)
  1.1334 +{
  1.1335 +  MOZ_CRASH("Don't call me!");
  1.1336 +}
  1.1337 +
  1.1338 +nsresult
  1.1339 +IPCSetVersionHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
  1.1340 +{
  1.1341 +  MOZ_CRASH("Don't call me!");
  1.1342 +}
  1.1343 +
  1.1344 +already_AddRefed<nsIDOMEvent>
  1.1345 +IPCSetVersionHelper::CreateSuccessEvent(mozilla::dom::EventTarget* aOwner)
  1.1346 +{
  1.1347 +  return IDBVersionChangeEvent::CreateUpgradeNeeded(aOwner,
  1.1348 +                                                    mOldVersion,
  1.1349 +                                                    mRequestedVersion);
  1.1350 +}
  1.1351 +
  1.1352 +nsresult
  1.1353 +IPCSetVersionHelper::GetSuccessResult(JSContext* aCx, JS::MutableHandle<JS::Value> aVal)
  1.1354 +{
  1.1355 +  mOpenRequest->SetTransaction(mTransaction);
  1.1356 +
  1.1357 +  return WrapNative(aCx, NS_ISUPPORTS_CAST(EventTarget*, mDatabase),
  1.1358 +                    aVal);
  1.1359 +}
  1.1360 +
  1.1361 +nsresult
  1.1362 +IPCDeleteDatabaseHelper::UnpackResponseFromParentProcess(
  1.1363 +                                            const ResponseValue& aResponseValue)
  1.1364 +{
  1.1365 +  MOZ_CRASH("Don't call me!");
  1.1366 +}
  1.1367 +
  1.1368 +AsyncConnectionHelper::ChildProcessSendResult
  1.1369 +IPCDeleteDatabaseHelper::SendResponseToChildProcess(nsresult aResultCode)
  1.1370 +{
  1.1371 +  MOZ_CRASH("Don't call me!");
  1.1372 +}
  1.1373 +
  1.1374 +nsresult
  1.1375 +IPCDeleteDatabaseHelper::GetSuccessResult(JSContext* aCx, JS::MutableHandle<JS::Value> aVal)
  1.1376 +{
  1.1377 +  aVal.setUndefined();
  1.1378 +  return NS_OK;
  1.1379 +}
  1.1380 +
  1.1381 +nsresult
  1.1382 +IPCDeleteDatabaseHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
  1.1383 +{
  1.1384 +  MOZ_CRASH("Don't call me!");
  1.1385 +}

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