DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (31ec81b5d7bb)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_indexeddb_idbobjectstore_h__
#define mozilla_dom_indexeddb_idbobjectstore_h__

#include "mozilla/dom/indexedDB/IndexedDatabase.h"

#include "js/TypeDecls.h"
#include "mozilla/dom/IDBCursorBinding.h"
#include "mozilla/dom/IDBIndexBinding.h"
#include "mozilla/dom/IDBObjectStoreBinding.h"
#include "nsCycleCollectionParticipant.h"
#include "MainThreadUtils.h"

#include "mozilla/dom/indexedDB/IDBRequest.h"
#include "mozilla/dom/indexedDB/IDBTransaction.h"
#include "mozilla/dom/indexedDB/KeyPath.h"

class nsIDOMBlob;
class nsIScriptContext;
class nsPIDOMWindow;

namespace mozilla {
namespace dom {
class ContentParent;
class PBlobChild;
class PBlobParent;
}
}

BEGIN_INDEXEDDB_NAMESPACE

class AsyncConnectionHelper;
class FileManager;
class IDBCursor;
class IDBKeyRange;
class IDBRequest;
class IndexedDBObjectStoreChild;
class IndexedDBObjectStoreParent;
class Key;

struct IndexInfo;
struct IndexUpdateInfo;
struct ObjectStoreInfo;

struct FileHandleData;
struct BlobOrFileData;

class IDBObjectStore MOZ_FINAL : public nsISupports,
                                 public nsWrapperCache
{
public:
  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(IDBObjectStore)

  static already_AddRefed<IDBObjectStore>
  Create(IDBTransaction* aTransaction,
         ObjectStoreInfo* aInfo,
         const nsACString& aDatabaseId,
         bool aCreating);

  static nsresult
  AppendIndexUpdateInfo(int64_t aIndexID,
                        const KeyPath& aKeyPath,
                        bool aUnique,
                        bool aMultiEntry,
                        JSContext* aCx,
                        JS::Handle<JS::Value> aObject,
                        nsTArray<IndexUpdateInfo>& aUpdateInfoArray);

  static nsresult
  UpdateIndexes(IDBTransaction* aTransaction,
                int64_t aObjectStoreId,
                const Key& aObjectStoreKey,
                bool aOverwrite,
                int64_t aObjectDataId,
                const nsTArray<IndexUpdateInfo>& aUpdateInfoArray);

  static nsresult
  GetStructuredCloneReadInfoFromStatement(mozIStorageStatement* aStatement,
                                          uint32_t aDataIndex,
                                          uint32_t aFileIdsIndex,
                                          IDBDatabase* aDatabase,
                                          StructuredCloneReadInfo& aInfo);

  static void
  ClearCloneReadInfo(StructuredCloneReadInfo& aReadInfo);

  static void
  ClearCloneWriteInfo(StructuredCloneWriteInfo& aWriteInfo);

  static bool
  DeserializeValue(JSContext* aCx,
                   StructuredCloneReadInfo& aCloneReadInfo,
                   JS::MutableHandle<JS::Value> aValue);

  static bool
  SerializeValue(JSContext* aCx,
                 StructuredCloneWriteInfo& aCloneWriteInfo,
                 JS::Handle<JS::Value> aValue);

  template <class DeserializationTraits>
  static JSObject*
  StructuredCloneReadCallback(JSContext* aCx,
                              JSStructuredCloneReader* aReader,
                              uint32_t aTag,
                              uint32_t aData,
                              void* aClosure);
  static bool
  StructuredCloneWriteCallback(JSContext* aCx,
                               JSStructuredCloneWriter* aWriter,
                               JS::Handle<JSObject*> aObj,
                               void* aClosure);

  static nsresult
  ConvertFileIdsToArray(const nsAString& aFileIds,
                        nsTArray<int64_t>& aResult);

  // Called only in the main process.
  static nsresult
  ConvertBlobsToActors(ContentParent* aContentParent,
                       FileManager* aFileManager,
                       const nsTArray<StructuredCloneFile>& aFiles,
                       InfallibleTArray<PBlobParent*>& aActors);

  // Called only in the child process.
  static void
  ConvertActorsToBlobs(const InfallibleTArray<PBlobChild*>& aActors,
                       nsTArray<StructuredCloneFile>& aFiles);

  const nsString& Name() const
  {
    return mName;
  }

  bool IsAutoIncrement() const
  {
    return mAutoIncrement;
  }

  bool IsWriteAllowed() const
  {
    return mTransaction->IsWriteAllowed();
  }

  int64_t Id() const
  {
    NS_ASSERTION(mId != INT64_MIN, "Don't ask for this yet!");
    return mId;
  }

  const KeyPath& GetKeyPath() const
  {
    return mKeyPath;
  }

  const bool HasValidKeyPath() const
  {
    return mKeyPath.IsValid();
  }

  IDBTransaction* Transaction()
  {
    return mTransaction;
  }

  ObjectStoreInfo* Info()
  {
    return mInfo;
  }

  void
  SetActor(IndexedDBObjectStoreChild* aActorChild)
  {
    NS_ASSERTION(!aActorChild || !mActorChild, "Shouldn't have more than one!");
    mActorChild = aActorChild;
  }

  void
  SetActor(IndexedDBObjectStoreParent* aActorParent)
  {
    NS_ASSERTION(!aActorParent || !mActorParent,
                 "Shouldn't have more than one!");
    mActorParent = aActorParent;
  }

  IndexedDBObjectStoreChild*
  GetActorChild() const
  {
    return mActorChild;
  }

  IndexedDBObjectStoreParent*
  GetActorParent() const
  {
    return mActorParent;
  }

  already_AddRefed<IDBIndex>
  CreateIndexInternal(const IndexInfo& aInfo,
                      ErrorResult& aRv);

  nsresult AddOrPutInternal(
                      const SerializedStructuredCloneWriteInfo& aCloneWriteInfo,
                      const Key& aKey,
                      const InfallibleTArray<IndexUpdateInfo>& aUpdateInfoArray,
                      const nsTArray<nsCOMPtr<nsIDOMBlob> >& aBlobs,
                      bool aOverwrite,
                      IDBRequest** _retval);

  already_AddRefed<IDBRequest>
  GetInternal(IDBKeyRange* aKeyRange,
              ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  GetAllInternal(IDBKeyRange* aKeyRange,
                 uint32_t aLimit,
                 ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  GetAllKeysInternal(IDBKeyRange* aKeyRange,
                     uint32_t aLimit,
                     ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  DeleteInternal(IDBKeyRange* aKeyRange,
                 ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  CountInternal(IDBKeyRange* aKeyRange,
                ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  OpenCursorInternal(IDBKeyRange* aKeyRange,
                     size_t aDirection,
                     ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  OpenKeyCursorInternal(IDBKeyRange* aKeyRange,
                        size_t aDirection,
                        ErrorResult& aRv);

  nsresult
  OpenCursorFromChildProcess(
                            IDBRequest* aRequest,
                            size_t aDirection,
                            const Key& aKey,
                            const SerializedStructuredCloneReadInfo& aCloneInfo,
                            nsTArray<StructuredCloneFile>& aBlobs,
                            IDBCursor** _retval);

  nsresult
  OpenCursorFromChildProcess(IDBRequest* aRequest,
                             size_t aDirection,
                             const Key& aKey,
                             IDBCursor** _retval);

  void
  SetInfo(ObjectStoreInfo* aInfo);

  static const JSClass sDummyPropJSClass;

  // nsWrapperCache
  virtual JSObject*
  WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope) MOZ_OVERRIDE;

  // WebIDL
  IDBTransaction*
  GetParentObject() const
  {
    return mTransaction;
  }

  void
  GetName(nsString& aName) const
  {
    NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    aName.Assign(mName);
  }

  JS::Value
  GetKeyPath(JSContext* aCx, ErrorResult& aRv);

  already_AddRefed<nsIDOMDOMStringList>
  GetIndexNames(ErrorResult& aRv);

  IDBTransaction*
  Transaction() const
  {
    NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    return mTransaction;
  }

  bool
  AutoIncrement() const
  {
    NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    return mAutoIncrement;
  }

  already_AddRefed<IDBRequest>
  Put(JSContext* aCx, JS::Handle<JS::Value> aValue,
      const Optional<JS::Handle<JS::Value> >& aKey, ErrorResult& aRv)
  {
    NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    return AddOrPut(aCx, aValue, aKey, true, aRv);
  }

  already_AddRefed<IDBRequest>
  Add(JSContext* aCx, JS::Handle<JS::Value> aValue,
      const Optional<JS::Handle<JS::Value> >& aKey, ErrorResult& aRv)
  {
    NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    return AddOrPut(aCx, aValue, aKey, false, aRv);
  }

  already_AddRefed<IDBRequest>
  Delete(JSContext* aCx, JS::Handle<JS::Value> aKey, ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  Get(JSContext* aCx, JS::Handle<JS::Value> aKey, ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  Clear(ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  OpenCursor(JSContext* aCx, const Optional<JS::Handle<JS::Value> >& aRange,
             IDBCursorDirection aDirection, ErrorResult& aRv);

  already_AddRefed<IDBIndex>
  CreateIndex(JSContext* aCx, const nsAString& aName, const nsAString& aKeyPath,
              const IDBIndexParameters& aOptionalParameters, ErrorResult& aRv);

  already_AddRefed<IDBIndex>
  CreateIndex(JSContext* aCx, const nsAString& aName,
              const Sequence<nsString>& aKeyPath,
              const IDBIndexParameters& aOptionalParameters, ErrorResult& aRv);

  already_AddRefed<IDBIndex>
  Index(const nsAString& aName, ErrorResult &aRv);

  void
  DeleteIndex(const nsAString& aIndexName, ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  Count(JSContext* aCx, const Optional<JS::Handle<JS::Value> >& aKey,
        ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  GetAll(JSContext* aCx, const Optional<JS::Handle<JS::Value> >& aKey,
         const Optional<uint32_t>& aLimit, ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  GetAllKeys(JSContext* aCx, const Optional<JS::Handle<JS::Value>>& aKey,
             const Optional<uint32_t>& aLimit, ErrorResult& aRv);

  already_AddRefed<IDBRequest>
  OpenKeyCursor(JSContext* aCx, const Optional<JS::Handle<JS::Value>>& aRange,
                IDBCursorDirection aDirection, ErrorResult& aRv);

protected:
  IDBObjectStore();
  ~IDBObjectStore();

  nsresult GetAddInfo(JSContext* aCx,
                      JS::Handle<JS::Value> aValue,
                      JS::Handle<JS::Value> aKeyVal,
                      StructuredCloneWriteInfo& aCloneWriteInfo,
                      Key& aKey,
                      nsTArray<IndexUpdateInfo>& aUpdateInfoArray);

  already_AddRefed<IDBRequest>
  AddOrPut(JSContext* aCx, JS::Handle<JS::Value> aValue,
           const Optional<JS::Handle<JS::Value> >& aKey, bool aOverwrite,
           ErrorResult& aRv);

  already_AddRefed<IDBIndex>
  CreateIndex(JSContext* aCx, const nsAString& aName, KeyPath& aKeyPath,
              const IDBIndexParameters& aOptionalParameters, ErrorResult& aRv);

  static void
  ClearStructuredCloneBuffer(JSAutoStructuredCloneBuffer& aBuffer);

  static bool
  ReadFileHandle(JSStructuredCloneReader* aReader,
                 FileHandleData* aRetval);

  static bool
  ReadBlobOrFile(JSStructuredCloneReader* aReader,
                 uint32_t aTag,
                 BlobOrFileData* aRetval);
private:
  nsRefPtr<IDBTransaction> mTransaction;

  int64_t mId;
  nsString mName;
  KeyPath mKeyPath;
  JS::Heap<JS::Value> mCachedKeyPath;
  bool mRooted;
  bool mAutoIncrement;
  nsCString mDatabaseId;
  nsRefPtr<ObjectStoreInfo> mInfo;

  nsTArray<nsRefPtr<IDBIndex> > mCreatedIndexes;

  IndexedDBObjectStoreChild* mActorChild;
  IndexedDBObjectStoreParent* mActorParent;
};

END_INDEXEDDB_NAMESPACE

#endif // mozilla_dom_indexeddb_idbobjectstore_h__