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| 1 // Copyright (c) 2013 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 "content/browser/indexed_db/indexed_db_factory.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/strings/utf_string_conversions.h" | |
| 9 #include "base/time/time.h" | |
| 10 #include "content/browser/indexed_db/indexed_db_backing_store.h" | |
| 11 #include "content/browser/indexed_db/indexed_db_context_impl.h" | |
| 12 #include "content/browser/indexed_db/indexed_db_database_error.h" | |
| 13 #include "content/browser/indexed_db/indexed_db_tracing.h" | |
| 14 #include "content/browser/indexed_db/indexed_db_transaction_coordinator.h" | |
| 15 #include "third_party/WebKit/public/platform/WebIDBDatabaseException.h" | |
| 16 #include "third_party/leveldatabase/env_chromium.h" | |
| 17 #include "webkit/common/database/database_identifier.h" | |
| 18 | |
| 19 using base::ASCIIToUTF16; | |
| 20 | |
| 21 namespace content { | |
| 22 | |
| 23 const int64 kBackingStoreGracePeriodMs = 2000; | |
| 24 | |
| 25 IndexedDBFactory::IndexedDBFactory(IndexedDBContextImpl* context) | |
| 26 : context_(context) {} | |
| 27 | |
| 28 IndexedDBFactory::~IndexedDBFactory() {} | |
| 29 | |
| 30 void IndexedDBFactory::RemoveDatabaseFromMaps( | |
| 31 const IndexedDBDatabase::Identifier& identifier) { | |
| 32 IndexedDBDatabaseMap::iterator it = database_map_.find(identifier); | |
| 33 DCHECK(it != database_map_.end()); | |
| 34 IndexedDBDatabase* database = it->second; | |
| 35 database_map_.erase(it); | |
| 36 | |
| 37 std::pair<OriginDBMap::iterator, OriginDBMap::iterator> range = | |
| 38 origin_dbs_.equal_range(database->identifier().first); | |
| 39 DCHECK(range.first != range.second); | |
| 40 for (OriginDBMap::iterator it2 = range.first; it2 != range.second; ++it2) { | |
| 41 if (it2->second == database) { | |
| 42 origin_dbs_.erase(it2); | |
| 43 break; | |
| 44 } | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 void IndexedDBFactory::ReleaseDatabase( | |
| 49 const IndexedDBDatabase::Identifier& identifier, | |
| 50 bool forcedClose) { | |
| 51 | |
| 52 DCHECK(!database_map_.find(identifier)->second->backing_store()); | |
| 53 | |
| 54 RemoveDatabaseFromMaps(identifier); | |
| 55 | |
| 56 // No grace period on a forced-close, as the initiator is | |
| 57 // assuming the backing store will be released once all | |
| 58 // connections are closed. | |
| 59 ReleaseBackingStore(identifier.first, forcedClose); | |
| 60 } | |
| 61 | |
| 62 void IndexedDBFactory::ReleaseBackingStore(const GURL& origin_url, | |
| 63 bool immediate) { | |
| 64 if (immediate) { | |
| 65 IndexedDBBackingStoreMap::iterator it = | |
| 66 backing_stores_with_active_blobs_.find(origin_url); | |
| 67 if (it != backing_stores_with_active_blobs_.end()) { | |
| 68 it->second->active_blob_registry()->ForceShutdown(); | |
| 69 backing_stores_with_active_blobs_.erase(it); | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 // Only close if this is the last reference. | |
| 74 if (!HasLastBackingStoreReference(origin_url)) | |
| 75 return; | |
| 76 | |
| 77 // If this factory does hold the last reference to the backing store, it can | |
| 78 // be closed - but unless requested to close it immediately, keep it around | |
| 79 // for a short period so that a re-open is fast. | |
| 80 if (immediate) { | |
| 81 CloseBackingStore(origin_url); | |
| 82 return; | |
| 83 } | |
| 84 | |
| 85 // Start a timer to close the backing store, unless something else opens it | |
| 86 // in the mean time. | |
| 87 DCHECK(!backing_store_map_[origin_url]->close_timer()->IsRunning()); | |
| 88 backing_store_map_[origin_url]->close_timer()->Start( | |
| 89 FROM_HERE, | |
| 90 base::TimeDelta::FromMilliseconds(kBackingStoreGracePeriodMs), | |
| 91 base::Bind(&IndexedDBFactory::MaybeCloseBackingStore, this, origin_url)); | |
| 92 } | |
| 93 | |
| 94 void IndexedDBFactory::MaybeCloseBackingStore(const GURL& origin_url) { | |
| 95 // Another reference may have opened since the maybe-close was posted, so it | |
| 96 // is necessary to check again. | |
| 97 if (HasLastBackingStoreReference(origin_url)) | |
| 98 CloseBackingStore(origin_url); | |
| 99 } | |
| 100 | |
| 101 void IndexedDBFactory::CloseBackingStore(const GURL& origin_url) { | |
| 102 IndexedDBBackingStoreMap::iterator it = backing_store_map_.find(origin_url); | |
| 103 DCHECK(it != backing_store_map_.end()); | |
| 104 // Stop the timer (if it's running) - this may happen if the timer was started | |
| 105 // and then a forced close occurs. | |
| 106 it->second->close_timer()->Stop(); | |
| 107 backing_store_map_.erase(it); | |
| 108 } | |
| 109 | |
| 110 bool IndexedDBFactory::HasLastBackingStoreReference(const GURL& origin_url) | |
| 111 const { | |
| 112 IndexedDBBackingStore* ptr; | |
| 113 { | |
| 114 // Scope so that the implicit scoped_refptr<> is freed. | |
| 115 IndexedDBBackingStoreMap::const_iterator it = | |
| 116 backing_store_map_.find(origin_url); | |
| 117 DCHECK(it != backing_store_map_.end()); | |
| 118 ptr = it->second.get(); | |
| 119 } | |
| 120 return ptr->HasOneRef(); | |
| 121 } | |
| 122 | |
| 123 void IndexedDBFactory::ForceClose(const GURL& origin_url) { | |
| 124 std::pair<OriginDBMapIterator, OriginDBMapIterator> range = | |
| 125 GetOpenDatabasesForOrigin(origin_url); | |
| 126 | |
| 127 while (range.first != range.second) { | |
| 128 IndexedDBDatabase* db = range.first->second; | |
| 129 ++range.first; | |
| 130 db->ForceClose(); | |
| 131 } | |
| 132 | |
| 133 if (backing_store_map_.find(origin_url) != backing_store_map_.end()) | |
| 134 ReleaseBackingStore(origin_url, true /* immediate */); | |
| 135 } | |
| 136 | |
| 137 void IndexedDBFactory::ContextDestroyed() { | |
| 138 // Timers on backing stores hold a reference to this factory. When the | |
| 139 // context (which nominally owns this factory) is destroyed during thread | |
| 140 // termination the timers must be stopped so that this factory and the | |
| 141 // stores can be disposed of. | |
| 142 for (IndexedDBBackingStoreMap::iterator it = backing_store_map_.begin(); | |
| 143 it != backing_store_map_.end(); | |
| 144 ++it) | |
| 145 it->second->close_timer()->Stop(); | |
| 146 backing_store_map_.clear(); | |
| 147 backing_stores_with_active_blobs_.clear(); | |
| 148 context_ = NULL; | |
| 149 } | |
| 150 | |
| 151 void IndexedDBFactory::ReportOutstandingBlobs(const GURL& origin_url, | |
| 152 bool blobs_outstanding) { | |
| 153 if (!context_) | |
| 154 return; | |
| 155 if (blobs_outstanding) { | |
| 156 DCHECK(!backing_stores_with_active_blobs_.count(origin_url)); | |
| 157 IndexedDBBackingStoreMap::iterator it = backing_store_map_.find(origin_url); | |
| 158 if (it != backing_store_map_.end()) | |
| 159 backing_stores_with_active_blobs_.insert(*it); | |
| 160 else | |
| 161 DCHECK(false); | |
| 162 } else { | |
| 163 IndexedDBBackingStoreMap::iterator it = | |
| 164 backing_stores_with_active_blobs_.find(origin_url); | |
| 165 if (it != backing_stores_with_active_blobs_.end()) { | |
| 166 backing_stores_with_active_blobs_.erase(it); | |
| 167 ReleaseBackingStore(origin_url, false /* immediate */); | |
| 168 } | |
| 169 } | |
| 170 } | |
| 171 | |
| 172 void IndexedDBFactory::GetDatabaseNames( | |
| 173 scoped_refptr<IndexedDBCallbacks> callbacks, | |
| 174 const GURL& origin_url, | |
| 175 const base::FilePath& data_directory, | |
| 176 net::URLRequestContext* request_context) { | |
| 177 IDB_TRACE("IndexedDBFactory::GetDatabaseNames"); | |
| 178 // TODO(dgrogan): Plumb data_loss back to script eventually? | |
| 179 blink::WebIDBDataLoss data_loss; | |
| 180 std::string data_loss_message; | |
| 181 bool disk_full; | |
| 182 scoped_refptr<IndexedDBBackingStore> backing_store = | |
| 183 OpenBackingStore(origin_url, | |
| 184 data_directory, | |
| 185 request_context, | |
| 186 &data_loss, | |
| 187 &data_loss_message, | |
| 188 &disk_full); | |
| 189 if (!backing_store) { | |
| 190 callbacks->OnError( | |
| 191 IndexedDBDatabaseError(blink::WebIDBDatabaseExceptionUnknownError, | |
| 192 "Internal error opening backing store for " | |
| 193 "indexedDB.webkitGetDatabaseNames.")); | |
| 194 return; | |
| 195 } | |
| 196 | |
| 197 leveldb::Status s; | |
| 198 std::vector<base::string16> names = backing_store->GetDatabaseNames(&s); | |
| 199 if (!s.ok()) { | |
| 200 // TODO(cmumford): Handle this error | |
| 201 DLOG(ERROR) << "Internal error getting database names"; | |
| 202 } | |
| 203 callbacks->OnSuccess(names); | |
| 204 backing_store = NULL; | |
| 205 ReleaseBackingStore(origin_url, false /* immediate */); | |
| 206 } | |
| 207 | |
| 208 void IndexedDBFactory::DeleteDatabase( | |
| 209 const base::string16& name, | |
| 210 net::URLRequestContext* request_context, | |
| 211 scoped_refptr<IndexedDBCallbacks> callbacks, | |
| 212 const GURL& origin_url, | |
| 213 const base::FilePath& data_directory) { | |
| 214 IDB_TRACE("IndexedDBFactory::DeleteDatabase"); | |
| 215 IndexedDBDatabase::Identifier unique_identifier(origin_url, name); | |
| 216 IndexedDBDatabaseMap::iterator it = database_map_.find(unique_identifier); | |
| 217 if (it != database_map_.end()) { | |
| 218 // If there are any connections to the database, directly delete the | |
| 219 // database. | |
| 220 it->second->DeleteDatabase(callbacks); | |
| 221 return; | |
| 222 } | |
| 223 | |
| 224 // TODO(dgrogan): Plumb data_loss back to script eventually? | |
| 225 blink::WebIDBDataLoss data_loss; | |
| 226 std::string data_loss_message; | |
| 227 bool disk_full = false; | |
| 228 scoped_refptr<IndexedDBBackingStore> backing_store = | |
| 229 OpenBackingStore(origin_url, | |
| 230 data_directory, | |
| 231 request_context, | |
| 232 &data_loss, | |
| 233 &data_loss_message, | |
| 234 &disk_full); | |
| 235 if (!backing_store) { | |
| 236 callbacks->OnError( | |
| 237 IndexedDBDatabaseError(blink::WebIDBDatabaseExceptionUnknownError, | |
| 238 ASCIIToUTF16( | |
| 239 "Internal error opening backing store " | |
| 240 "for indexedDB.deleteDatabase."))); | |
| 241 return; | |
| 242 } | |
| 243 | |
| 244 leveldb::Status s; | |
| 245 scoped_refptr<IndexedDBDatabase> database = IndexedDBDatabase::Create( | |
| 246 name, backing_store, this, unique_identifier, &s); | |
| 247 if (!database) { | |
| 248 IndexedDBDatabaseError error( | |
| 249 blink::WebIDBDatabaseExceptionUnknownError, | |
| 250 ASCIIToUTF16( | |
| 251 "Internal error creating database backend for " | |
| 252 "indexedDB.deleteDatabase.")); | |
| 253 callbacks->OnError(error); | |
| 254 if (leveldb_env::IsCorruption(s)) | |
| 255 HandleBackingStoreCorruption(origin_url, error); | |
| 256 return; | |
| 257 } | |
| 258 | |
| 259 database_map_[unique_identifier] = database; | |
| 260 origin_dbs_.insert(std::make_pair(origin_url, database)); | |
| 261 database->DeleteDatabase(callbacks); | |
| 262 RemoveDatabaseFromMaps(unique_identifier); | |
| 263 database = NULL; | |
| 264 backing_store = NULL; | |
| 265 ReleaseBackingStore(origin_url, false /* immediate */); | |
| 266 } | |
| 267 | |
| 268 void IndexedDBFactory::DatabaseDeleted( | |
| 269 const IndexedDBDatabase::Identifier& identifier) { | |
| 270 // NULL after ContextDestroyed() called, and in some unit tests. | |
| 271 if (!context_) | |
| 272 return; | |
| 273 context_->DatabaseDeleted(identifier.first); | |
| 274 } | |
| 275 | |
| 276 void IndexedDBFactory::HandleBackingStoreFailure(const GURL& origin_url) { | |
| 277 // NULL after ContextDestroyed() called, and in some unit tests. | |
| 278 if (!context_) | |
| 279 return; | |
| 280 context_->ForceClose(origin_url, | |
| 281 IndexedDBContextImpl::FORCE_CLOSE_BACKING_STORE_FAILURE); | |
| 282 } | |
| 283 | |
| 284 void IndexedDBFactory::HandleBackingStoreCorruption( | |
| 285 const GURL& origin_url, | |
| 286 const IndexedDBDatabaseError& error) { | |
| 287 // Make a copy of origin_url as this is likely a reference to a member of a | |
| 288 // backing store which this function will be deleting. | |
| 289 GURL saved_origin_url(origin_url); | |
| 290 DCHECK(context_); | |
| 291 base::FilePath path_base = context_->data_path(); | |
| 292 IndexedDBBackingStore::RecordCorruptionInfo( | |
| 293 path_base, saved_origin_url, base::UTF16ToUTF8(error.message())); | |
| 294 HandleBackingStoreFailure(saved_origin_url); | |
| 295 // Note: DestroyBackingStore only deletes LevelDB files, leaving all others, | |
| 296 // so our corruption info file will remain. | |
| 297 leveldb::Status s = | |
| 298 IndexedDBBackingStore::DestroyBackingStore(path_base, saved_origin_url); | |
| 299 if (!s.ok()) | |
| 300 DLOG(ERROR) << "Unable to delete backing store: " << s.ToString(); | |
| 301 } | |
| 302 | |
| 303 bool IndexedDBFactory::IsDatabaseOpen(const GURL& origin_url, | |
| 304 const base::string16& name) const { | |
| 305 | |
| 306 return !!database_map_.count(IndexedDBDatabase::Identifier(origin_url, name)); | |
| 307 } | |
| 308 | |
| 309 bool IndexedDBFactory::IsBackingStoreOpen(const GURL& origin_url) const { | |
| 310 return backing_store_map_.find(origin_url) != backing_store_map_.end(); | |
| 311 } | |
| 312 | |
| 313 bool IndexedDBFactory::IsBackingStorePendingClose(const GURL& origin_url) | |
| 314 const { | |
| 315 IndexedDBBackingStoreMap::const_iterator it = | |
| 316 backing_store_map_.find(origin_url); | |
| 317 if (it == backing_store_map_.end()) | |
| 318 return false; | |
| 319 return it->second->close_timer()->IsRunning(); | |
| 320 } | |
| 321 | |
| 322 scoped_refptr<IndexedDBBackingStore> IndexedDBFactory::OpenBackingStoreHelper( | |
| 323 const GURL& origin_url, | |
| 324 const base::FilePath& data_directory, | |
| 325 net::URLRequestContext* request_context, | |
| 326 blink::WebIDBDataLoss* data_loss, | |
| 327 std::string* data_loss_message, | |
| 328 bool* disk_full, | |
| 329 bool first_time) { | |
| 330 return IndexedDBBackingStore::Open(this, | |
| 331 origin_url, | |
| 332 data_directory, | |
| 333 request_context, | |
| 334 data_loss, | |
| 335 data_loss_message, | |
| 336 disk_full, | |
| 337 context_->TaskRunner(), | |
| 338 first_time); | |
| 339 } | |
| 340 | |
| 341 scoped_refptr<IndexedDBBackingStore> IndexedDBFactory::OpenBackingStore( | |
| 342 const GURL& origin_url, | |
| 343 const base::FilePath& data_directory, | |
| 344 net::URLRequestContext* request_context, | |
| 345 blink::WebIDBDataLoss* data_loss, | |
| 346 std::string* data_loss_message, | |
| 347 bool* disk_full) { | |
| 348 const bool open_in_memory = data_directory.empty(); | |
| 349 | |
| 350 IndexedDBBackingStoreMap::iterator it2 = backing_store_map_.find(origin_url); | |
| 351 if (it2 != backing_store_map_.end()) { | |
| 352 it2->second->close_timer()->Stop(); | |
| 353 return it2->second; | |
| 354 } | |
| 355 | |
| 356 scoped_refptr<IndexedDBBackingStore> backing_store; | |
| 357 bool first_time = false; | |
| 358 if (open_in_memory) { | |
| 359 backing_store = | |
| 360 IndexedDBBackingStore::OpenInMemory(origin_url, context_->TaskRunner()); | |
| 361 } else { | |
| 362 first_time = !backends_opened_since_boot_.count(origin_url); | |
| 363 | |
| 364 backing_store = OpenBackingStoreHelper(origin_url, | |
| 365 data_directory, | |
| 366 request_context, | |
| 367 data_loss, | |
| 368 data_loss_message, | |
| 369 disk_full, | |
| 370 first_time); | |
| 371 } | |
| 372 | |
| 373 if (backing_store.get()) { | |
| 374 if (first_time) | |
| 375 backends_opened_since_boot_.insert(origin_url); | |
| 376 backing_store_map_[origin_url] = backing_store; | |
| 377 // If an in-memory database, bind lifetime to this factory instance. | |
| 378 if (open_in_memory) | |
| 379 session_only_backing_stores_.insert(backing_store); | |
| 380 | |
| 381 // All backing stores associated with this factory should be of the same | |
| 382 // type. | |
| 383 DCHECK_NE(session_only_backing_stores_.empty(), open_in_memory); | |
| 384 | |
| 385 return backing_store; | |
| 386 } | |
| 387 | |
| 388 return 0; | |
| 389 } | |
| 390 | |
| 391 void IndexedDBFactory::Open(const base::string16& name, | |
| 392 const IndexedDBPendingConnection& connection, | |
| 393 net::URLRequestContext* request_context, | |
| 394 const GURL& origin_url, | |
| 395 const base::FilePath& data_directory) { | |
| 396 IDB_TRACE("IndexedDBFactory::Open"); | |
| 397 scoped_refptr<IndexedDBDatabase> database; | |
| 398 IndexedDBDatabase::Identifier unique_identifier(origin_url, name); | |
| 399 IndexedDBDatabaseMap::iterator it = database_map_.find(unique_identifier); | |
| 400 blink::WebIDBDataLoss data_loss = | |
| 401 blink::WebIDBDataLossNone; | |
| 402 std::string data_loss_message; | |
| 403 bool disk_full = false; | |
| 404 bool was_open = (it != database_map_.end()); | |
| 405 if (!was_open) { | |
| 406 scoped_refptr<IndexedDBBackingStore> backing_store = | |
| 407 OpenBackingStore(origin_url, | |
| 408 data_directory, | |
| 409 request_context, | |
| 410 &data_loss, | |
| 411 &data_loss_message, | |
| 412 &disk_full); | |
| 413 if (!backing_store) { | |
| 414 if (disk_full) { | |
| 415 connection.callbacks->OnError( | |
| 416 IndexedDBDatabaseError(blink::WebIDBDatabaseExceptionQuotaError, | |
| 417 ASCIIToUTF16( | |
| 418 "Encountered full disk while opening " | |
| 419 "backing store for indexedDB.open."))); | |
| 420 return; | |
| 421 } | |
| 422 connection.callbacks->OnError(IndexedDBDatabaseError( | |
| 423 blink::WebIDBDatabaseExceptionUnknownError, | |
| 424 ASCIIToUTF16( | |
| 425 "Internal error opening backing store for indexedDB.open."))); | |
| 426 return; | |
| 427 } | |
| 428 | |
| 429 leveldb::Status s; | |
| 430 database = IndexedDBDatabase::Create( | |
| 431 name, backing_store, this, unique_identifier, &s); | |
| 432 if (!database) { | |
| 433 DLOG(ERROR) << "Unable to create the database"; | |
| 434 IndexedDBDatabaseError error(blink::WebIDBDatabaseExceptionUnknownError, | |
| 435 ASCIIToUTF16( | |
| 436 "Internal error creating " | |
| 437 "database backend for " | |
| 438 "indexedDB.open.")); | |
| 439 connection.callbacks->OnError(error); | |
| 440 if (leveldb_env::IsCorruption(s)) { | |
| 441 backing_store = NULL; // Closes the LevelDB so that it can be deleted | |
| 442 HandleBackingStoreCorruption(origin_url, error); | |
| 443 } | |
| 444 return; | |
| 445 } | |
| 446 } else { | |
| 447 database = it->second; | |
| 448 } | |
| 449 | |
| 450 if (data_loss != blink::WebIDBDataLossNone) | |
| 451 connection.callbacks->OnDataLoss(data_loss, data_loss_message); | |
| 452 | |
| 453 database->OpenConnection(connection); | |
| 454 | |
| 455 if (!was_open && database->ConnectionCount() > 0) { | |
| 456 database_map_[unique_identifier] = database; | |
| 457 origin_dbs_.insert(std::make_pair(origin_url, database)); | |
| 458 } | |
| 459 } | |
| 460 | |
| 461 std::pair<IndexedDBFactory::OriginDBMapIterator, | |
| 462 IndexedDBFactory::OriginDBMapIterator> | |
| 463 IndexedDBFactory::GetOpenDatabasesForOrigin(const GURL& origin_url) const { | |
| 464 return origin_dbs_.equal_range(origin_url); | |
| 465 } | |
| 466 | |
| 467 size_t IndexedDBFactory::GetConnectionCount(const GURL& origin_url) const { | |
| 468 size_t count(0); | |
| 469 | |
| 470 std::pair<OriginDBMapIterator, OriginDBMapIterator> range = | |
| 471 GetOpenDatabasesForOrigin(origin_url); | |
| 472 for (OriginDBMapIterator it = range.first; it != range.second; ++it) | |
| 473 count += it->second->ConnectionCount(); | |
| 474 | |
| 475 return count; | |
| 476 } | |
| 477 | |
| 478 } // namespace content | |
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Chromium Code Reviews
Issue 313883003:
Split IndexedDBFactory into virtual base + impl. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master