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| 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 "net/disk_cache/in_flight_backend_io.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/bind_helpers.h" | |
| 9 #include "base/compiler_specific.h" | |
| 10 #include "base/logging.h" | |
| 11 #include "net/base/net_errors.h" | |
| 12 #include "net/disk_cache/backend_impl.h" | |
| 13 #include "net/disk_cache/entry_impl.h" | |
| 14 | |
| 15 // Define BLOCKFILE_BACKEND_IMPL_OBJ to be a disk_cache::BackendImpl* in order | |
| 16 // to use the CACHE_UMA histogram macro. | |
| 17 #define BLOCKFILE_BACKEND_IMPL_OBJ backend_ | |
| 18 #include "net/disk_cache/histogram_macros.h" | |
| 19 | |
| 20 namespace disk_cache { | |
| 21 | |
| 22 BackendIO::BackendIO(InFlightIO* controller, BackendImpl* backend, | |
| 23 const net::CompletionCallback& callback) | |
| 24 : BackgroundIO(controller), | |
| 25 backend_(backend), | |
| 26 callback_(callback), | |
| 27 operation_(OP_NONE), | |
| 28 entry_ptr_(NULL), | |
| 29 iter_ptr_(NULL), | |
| 30 iter_(NULL), | |
| 31 entry_(NULL), | |
| 32 index_(0), | |
| 33 offset_(0), | |
| 34 buf_len_(0), | |
| 35 truncate_(false), | |
| 36 offset64_(0), | |
| 37 start_(NULL) { | |
| 38 start_time_ = base::TimeTicks::Now(); | |
| 39 } | |
| 40 | |
| 41 // Runs on the background thread. | |
| 42 void BackendIO::ExecuteOperation() { | |
| 43 if (IsEntryOperation()) | |
| 44 return ExecuteEntryOperation(); | |
| 45 | |
| 46 ExecuteBackendOperation(); | |
| 47 } | |
| 48 | |
| 49 // Runs on the background thread. | |
| 50 void BackendIO::OnIOComplete(int result) { | |
| 51 DCHECK(IsEntryOperation()); | |
| 52 DCHECK_NE(result, net::ERR_IO_PENDING); | |
| 53 result_ = result; | |
| 54 NotifyController(); | |
| 55 } | |
| 56 | |
| 57 // Runs on the primary thread. | |
| 58 void BackendIO::OnDone(bool cancel) { | |
| 59 if (IsEntryOperation()) { | |
| 60 CACHE_UMA(TIMES, "TotalIOTime", 0, ElapsedTime()); | |
| 61 } | |
| 62 | |
| 63 if (!ReturnsEntry()) | |
| 64 return; | |
| 65 | |
| 66 if (result() == net::OK) { | |
| 67 static_cast<EntryImpl*>(*entry_ptr_)->OnEntryCreated(backend_); | |
| 68 if (cancel) | |
| 69 (*entry_ptr_)->Close(); | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 bool BackendIO::IsEntryOperation() { | |
| 74 return operation_ > OP_MAX_BACKEND; | |
| 75 } | |
| 76 | |
| 77 // Runs on the background thread. | |
| 78 void BackendIO::ReferenceEntry() { | |
| 79 entry_->AddRef(); | |
| 80 } | |
| 81 | |
| 82 void BackendIO::Init() { | |
| 83 operation_ = OP_INIT; | |
| 84 } | |
| 85 | |
| 86 void BackendIO::OpenEntry(const std::string& key, Entry** entry) { | |
| 87 operation_ = OP_OPEN; | |
| 88 key_ = key; | |
| 89 entry_ptr_ = entry; | |
| 90 } | |
| 91 | |
| 92 void BackendIO::CreateEntry(const std::string& key, Entry** entry) { | |
| 93 operation_ = OP_CREATE; | |
| 94 key_ = key; | |
| 95 entry_ptr_ = entry; | |
| 96 } | |
| 97 | |
| 98 void BackendIO::DoomEntry(const std::string& key) { | |
| 99 operation_ = OP_DOOM; | |
| 100 key_ = key; | |
| 101 } | |
| 102 | |
| 103 void BackendIO::DoomAllEntries() { | |
| 104 operation_ = OP_DOOM_ALL; | |
| 105 } | |
| 106 | |
| 107 void BackendIO::DoomEntriesBetween(const base::Time initial_time, | |
| 108 const base::Time end_time) { | |
| 109 operation_ = OP_DOOM_BETWEEN; | |
| 110 initial_time_ = initial_time; | |
| 111 end_time_ = end_time; | |
| 112 } | |
| 113 | |
| 114 void BackendIO::DoomEntriesSince(const base::Time initial_time) { | |
| 115 operation_ = OP_DOOM_SINCE; | |
| 116 initial_time_ = initial_time; | |
| 117 } | |
| 118 | |
| 119 void BackendIO::OpenNextEntry(void** iter, Entry** next_entry) { | |
| 120 operation_ = OP_OPEN_NEXT; | |
| 121 iter_ptr_ = iter; | |
| 122 entry_ptr_ = next_entry; | |
| 123 } | |
| 124 | |
| 125 void BackendIO::OpenPrevEntry(void** iter, Entry** prev_entry) { | |
| 126 operation_ = OP_OPEN_PREV; | |
| 127 iter_ptr_ = iter; | |
| 128 entry_ptr_ = prev_entry; | |
| 129 } | |
| 130 | |
| 131 void BackendIO::EndEnumeration(void* iterator) { | |
| 132 operation_ = OP_END_ENUMERATION; | |
| 133 iter_ = iterator; | |
| 134 } | |
| 135 | |
| 136 void BackendIO::OnExternalCacheHit(const std::string& key) { | |
| 137 operation_ = OP_ON_EXTERNAL_CACHE_HIT; | |
| 138 key_ = key; | |
| 139 } | |
| 140 | |
| 141 void BackendIO::CloseEntryImpl(EntryImpl* entry) { | |
| 142 operation_ = OP_CLOSE_ENTRY; | |
| 143 entry_ = entry; | |
| 144 } | |
| 145 | |
| 146 void BackendIO::DoomEntryImpl(EntryImpl* entry) { | |
| 147 operation_ = OP_DOOM_ENTRY; | |
| 148 entry_ = entry; | |
| 149 } | |
| 150 | |
| 151 void BackendIO::FlushQueue() { | |
| 152 operation_ = OP_FLUSH_QUEUE; | |
| 153 } | |
| 154 | |
| 155 void BackendIO::RunTask(const base::Closure& task) { | |
| 156 operation_ = OP_RUN_TASK; | |
| 157 task_ = task; | |
| 158 } | |
| 159 | |
| 160 void BackendIO::ReadData(EntryImpl* entry, int index, int offset, | |
| 161 net::IOBuffer* buf, int buf_len) { | |
| 162 operation_ = OP_READ; | |
| 163 entry_ = entry; | |
| 164 index_ = index; | |
| 165 offset_ = offset; | |
| 166 buf_ = buf; | |
| 167 buf_len_ = buf_len; | |
| 168 } | |
| 169 | |
| 170 void BackendIO::WriteData(EntryImpl* entry, int index, int offset, | |
| 171 net::IOBuffer* buf, int buf_len, bool truncate) { | |
| 172 operation_ = OP_WRITE; | |
| 173 entry_ = entry; | |
| 174 index_ = index; | |
| 175 offset_ = offset; | |
| 176 buf_ = buf; | |
| 177 buf_len_ = buf_len; | |
| 178 truncate_ = truncate; | |
| 179 } | |
| 180 | |
| 181 void BackendIO::ReadSparseData(EntryImpl* entry, int64 offset, | |
| 182 net::IOBuffer* buf, int buf_len) { | |
| 183 operation_ = OP_READ_SPARSE; | |
| 184 entry_ = entry; | |
| 185 offset64_ = offset; | |
| 186 buf_ = buf; | |
| 187 buf_len_ = buf_len; | |
| 188 } | |
| 189 | |
| 190 void BackendIO::WriteSparseData(EntryImpl* entry, int64 offset, | |
| 191 net::IOBuffer* buf, int buf_len) { | |
| 192 operation_ = OP_WRITE_SPARSE; | |
| 193 entry_ = entry; | |
| 194 offset64_ = offset; | |
| 195 buf_ = buf; | |
| 196 buf_len_ = buf_len; | |
| 197 } | |
| 198 | |
| 199 void BackendIO::GetAvailableRange(EntryImpl* entry, int64 offset, int len, | |
| 200 int64* start) { | |
| 201 operation_ = OP_GET_RANGE; | |
| 202 entry_ = entry; | |
| 203 offset64_ = offset; | |
| 204 buf_len_ = len; | |
| 205 start_ = start; | |
| 206 } | |
| 207 | |
| 208 void BackendIO::CancelSparseIO(EntryImpl* entry) { | |
| 209 operation_ = OP_CANCEL_IO; | |
| 210 entry_ = entry; | |
| 211 } | |
| 212 | |
| 213 void BackendIO::ReadyForSparseIO(EntryImpl* entry) { | |
| 214 operation_ = OP_IS_READY; | |
| 215 entry_ = entry; | |
| 216 } | |
| 217 | |
| 218 BackendIO::~BackendIO() {} | |
| 219 | |
| 220 bool BackendIO::ReturnsEntry() { | |
| 221 return (operation_ == OP_OPEN || operation_ == OP_CREATE || | |
| 222 operation_ == OP_OPEN_NEXT || operation_ == OP_OPEN_PREV); | |
| 223 } | |
| 224 | |
| 225 base::TimeDelta BackendIO::ElapsedTime() const { | |
| 226 return base::TimeTicks::Now() - start_time_; | |
| 227 } | |
| 228 | |
| 229 // Runs on the background thread. | |
| 230 void BackendIO::ExecuteBackendOperation() { | |
| 231 switch (operation_) { | |
| 232 case OP_INIT: | |
| 233 result_ = backend_->SyncInit(); | |
| 234 break; | |
| 235 case OP_OPEN: | |
| 236 result_ = backend_->SyncOpenEntry(key_, entry_ptr_); | |
| 237 break; | |
| 238 case OP_CREATE: | |
| 239 result_ = backend_->SyncCreateEntry(key_, entry_ptr_); | |
| 240 break; | |
| 241 case OP_DOOM: | |
| 242 result_ = backend_->SyncDoomEntry(key_); | |
| 243 break; | |
| 244 case OP_DOOM_ALL: | |
| 245 result_ = backend_->SyncDoomAllEntries(); | |
| 246 break; | |
| 247 case OP_DOOM_BETWEEN: | |
| 248 result_ = backend_->SyncDoomEntriesBetween(initial_time_, end_time_); | |
| 249 break; | |
| 250 case OP_DOOM_SINCE: | |
| 251 result_ = backend_->SyncDoomEntriesSince(initial_time_); | |
| 252 break; | |
| 253 case OP_OPEN_NEXT: | |
| 254 result_ = backend_->SyncOpenNextEntry(iter_ptr_, entry_ptr_); | |
| 255 break; | |
| 256 case OP_OPEN_PREV: | |
| 257 result_ = backend_->SyncOpenPrevEntry(iter_ptr_, entry_ptr_); | |
| 258 break; | |
| 259 case OP_END_ENUMERATION: | |
| 260 backend_->SyncEndEnumeration(iter_); | |
| 261 result_ = net::OK; | |
| 262 break; | |
| 263 case OP_ON_EXTERNAL_CACHE_HIT: | |
| 264 backend_->SyncOnExternalCacheHit(key_); | |
| 265 result_ = net::OK; | |
| 266 break; | |
| 267 case OP_CLOSE_ENTRY: | |
| 268 entry_->Release(); | |
| 269 result_ = net::OK; | |
| 270 break; | |
| 271 case OP_DOOM_ENTRY: | |
| 272 entry_->DoomImpl(); | |
| 273 result_ = net::OK; | |
| 274 break; | |
| 275 case OP_FLUSH_QUEUE: | |
| 276 result_ = net::OK; | |
| 277 break; | |
| 278 case OP_RUN_TASK: | |
| 279 task_.Run(); | |
| 280 result_ = net::OK; | |
| 281 break; | |
| 282 default: | |
| 283 NOTREACHED() << "Invalid Operation"; | |
| 284 result_ = net::ERR_UNEXPECTED; | |
| 285 } | |
| 286 DCHECK_NE(net::ERR_IO_PENDING, result_); | |
| 287 NotifyController(); | |
| 288 } | |
| 289 | |
| 290 // Runs on the background thread. | |
| 291 void BackendIO::ExecuteEntryOperation() { | |
| 292 switch (operation_) { | |
| 293 case OP_READ: | |
| 294 result_ = | |
| 295 entry_->ReadDataImpl(index_, offset_, buf_.get(), buf_len_, | |
| 296 base::Bind(&BackendIO::OnIOComplete, this)); | |
| 297 break; | |
| 298 case OP_WRITE: | |
| 299 result_ = | |
| 300 entry_->WriteDataImpl(index_, offset_, buf_.get(), buf_len_, | |
| 301 base::Bind(&BackendIO::OnIOComplete, this), | |
| 302 truncate_); | |
| 303 break; | |
| 304 case OP_READ_SPARSE: | |
| 305 result_ = entry_->ReadSparseDataImpl( | |
| 306 offset64_, buf_.get(), buf_len_, | |
| 307 base::Bind(&BackendIO::OnIOComplete, this)); | |
| 308 break; | |
| 309 case OP_WRITE_SPARSE: | |
| 310 result_ = entry_->WriteSparseDataImpl( | |
| 311 offset64_, buf_.get(), buf_len_, | |
| 312 base::Bind(&BackendIO::OnIOComplete, this)); | |
| 313 break; | |
| 314 case OP_GET_RANGE: | |
| 315 result_ = entry_->GetAvailableRangeImpl(offset64_, buf_len_, start_); | |
| 316 break; | |
| 317 case OP_CANCEL_IO: | |
| 318 entry_->CancelSparseIOImpl(); | |
| 319 result_ = net::OK; | |
| 320 break; | |
| 321 case OP_IS_READY: | |
| 322 result_ = entry_->ReadyForSparseIOImpl( | |
| 323 base::Bind(&BackendIO::OnIOComplete, this)); | |
| 324 break; | |
| 325 default: | |
| 326 NOTREACHED() << "Invalid Operation"; | |
| 327 result_ = net::ERR_UNEXPECTED; | |
| 328 } | |
| 329 buf_ = NULL; | |
| 330 if (result_ != net::ERR_IO_PENDING) | |
| 331 NotifyController(); | |
| 332 } | |
| 333 | |
| 334 InFlightBackendIO::InFlightBackendIO(BackendImpl* backend, | |
| 335 base::MessageLoopProxy* background_thread) | |
| 336 : backend_(backend), | |
| 337 background_thread_(background_thread), | |
| 338 ptr_factory_(this) { | |
| 339 } | |
| 340 | |
| 341 InFlightBackendIO::~InFlightBackendIO() { | |
| 342 } | |
| 343 | |
| 344 void InFlightBackendIO::Init(const net::CompletionCallback& callback) { | |
| 345 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 346 operation->Init(); | |
| 347 PostOperation(operation.get()); | |
| 348 } | |
| 349 | |
| 350 void InFlightBackendIO::OpenEntry(const std::string& key, Entry** entry, | |
| 351 const net::CompletionCallback& callback) { | |
| 352 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 353 operation->OpenEntry(key, entry); | |
| 354 PostOperation(operation.get()); | |
| 355 } | |
| 356 | |
| 357 void InFlightBackendIO::CreateEntry(const std::string& key, Entry** entry, | |
| 358 const net::CompletionCallback& callback) { | |
| 359 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 360 operation->CreateEntry(key, entry); | |
| 361 PostOperation(operation.get()); | |
| 362 } | |
| 363 | |
| 364 void InFlightBackendIO::DoomEntry(const std::string& key, | |
| 365 const net::CompletionCallback& callback) { | |
| 366 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 367 operation->DoomEntry(key); | |
| 368 PostOperation(operation.get()); | |
| 369 } | |
| 370 | |
| 371 void InFlightBackendIO::DoomAllEntries( | |
| 372 const net::CompletionCallback& callback) { | |
| 373 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 374 operation->DoomAllEntries(); | |
| 375 PostOperation(operation.get()); | |
| 376 } | |
| 377 | |
| 378 void InFlightBackendIO::DoomEntriesBetween(const base::Time initial_time, | |
| 379 const base::Time end_time, | |
| 380 const net::CompletionCallback& callback) { | |
| 381 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 382 operation->DoomEntriesBetween(initial_time, end_time); | |
| 383 PostOperation(operation.get()); | |
| 384 } | |
| 385 | |
| 386 void InFlightBackendIO::DoomEntriesSince( | |
| 387 const base::Time initial_time, const net::CompletionCallback& callback) { | |
| 388 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 389 operation->DoomEntriesSince(initial_time); | |
| 390 PostOperation(operation.get()); | |
| 391 } | |
| 392 | |
| 393 void InFlightBackendIO::OpenNextEntry(void** iter, Entry** next_entry, | |
| 394 const net::CompletionCallback& callback) { | |
| 395 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 396 operation->OpenNextEntry(iter, next_entry); | |
| 397 PostOperation(operation.get()); | |
| 398 } | |
| 399 | |
| 400 void InFlightBackendIO::OpenPrevEntry(void** iter, Entry** prev_entry, | |
| 401 const net::CompletionCallback& callback) { | |
| 402 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 403 operation->OpenPrevEntry(iter, prev_entry); | |
| 404 PostOperation(operation.get()); | |
| 405 } | |
| 406 | |
| 407 void InFlightBackendIO::EndEnumeration(void* iterator) { | |
| 408 scoped_refptr<BackendIO> operation( | |
| 409 new BackendIO(this, backend_, net::CompletionCallback())); | |
| 410 operation->EndEnumeration(iterator); | |
| 411 PostOperation(operation.get()); | |
| 412 } | |
| 413 | |
| 414 void InFlightBackendIO::OnExternalCacheHit(const std::string& key) { | |
| 415 scoped_refptr<BackendIO> operation( | |
| 416 new BackendIO(this, backend_, net::CompletionCallback())); | |
| 417 operation->OnExternalCacheHit(key); | |
| 418 PostOperation(operation.get()); | |
| 419 } | |
| 420 | |
| 421 void InFlightBackendIO::CloseEntryImpl(EntryImpl* entry) { | |
| 422 scoped_refptr<BackendIO> operation( | |
| 423 new BackendIO(this, backend_, net::CompletionCallback())); | |
| 424 operation->CloseEntryImpl(entry); | |
| 425 PostOperation(operation.get()); | |
| 426 } | |
| 427 | |
| 428 void InFlightBackendIO::DoomEntryImpl(EntryImpl* entry) { | |
| 429 scoped_refptr<BackendIO> operation( | |
| 430 new BackendIO(this, backend_, net::CompletionCallback())); | |
| 431 operation->DoomEntryImpl(entry); | |
| 432 PostOperation(operation.get()); | |
| 433 } | |
| 434 | |
| 435 void InFlightBackendIO::FlushQueue(const net::CompletionCallback& callback) { | |
| 436 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 437 operation->FlushQueue(); | |
| 438 PostOperation(operation.get()); | |
| 439 } | |
| 440 | |
| 441 void InFlightBackendIO::RunTask( | |
| 442 const base::Closure& task, const net::CompletionCallback& callback) { | |
| 443 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 444 operation->RunTask(task); | |
| 445 PostOperation(operation.get()); | |
| 446 } | |
| 447 | |
| 448 void InFlightBackendIO::ReadData(EntryImpl* entry, int index, int offset, | |
| 449 net::IOBuffer* buf, int buf_len, | |
| 450 const net::CompletionCallback& callback) { | |
| 451 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 452 operation->ReadData(entry, index, offset, buf, buf_len); | |
| 453 PostOperation(operation.get()); | |
| 454 } | |
| 455 | |
| 456 void InFlightBackendIO::WriteData(EntryImpl* entry, int index, int offset, | |
| 457 net::IOBuffer* buf, int buf_len, | |
| 458 bool truncate, | |
| 459 const net::CompletionCallback& callback) { | |
| 460 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 461 operation->WriteData(entry, index, offset, buf, buf_len, truncate); | |
| 462 PostOperation(operation.get()); | |
| 463 } | |
| 464 | |
| 465 void InFlightBackendIO::ReadSparseData( | |
| 466 EntryImpl* entry, int64 offset, net::IOBuffer* buf, int buf_len, | |
| 467 const net::CompletionCallback& callback) { | |
| 468 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 469 operation->ReadSparseData(entry, offset, buf, buf_len); | |
| 470 PostOperation(operation.get()); | |
| 471 } | |
| 472 | |
| 473 void InFlightBackendIO::WriteSparseData( | |
| 474 EntryImpl* entry, int64 offset, net::IOBuffer* buf, int buf_len, | |
| 475 const net::CompletionCallback& callback) { | |
| 476 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 477 operation->WriteSparseData(entry, offset, buf, buf_len); | |
| 478 PostOperation(operation.get()); | |
| 479 } | |
| 480 | |
| 481 void InFlightBackendIO::GetAvailableRange( | |
| 482 EntryImpl* entry, int64 offset, int len, int64* start, | |
| 483 const net::CompletionCallback& callback) { | |
| 484 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 485 operation->GetAvailableRange(entry, offset, len, start); | |
| 486 PostOperation(operation.get()); | |
| 487 } | |
| 488 | |
| 489 void InFlightBackendIO::CancelSparseIO(EntryImpl* entry) { | |
| 490 scoped_refptr<BackendIO> operation( | |
| 491 new BackendIO(this, backend_, net::CompletionCallback())); | |
| 492 operation->CancelSparseIO(entry); | |
| 493 PostOperation(operation.get()); | |
| 494 } | |
| 495 | |
| 496 void InFlightBackendIO::ReadyForSparseIO( | |
| 497 EntryImpl* entry, const net::CompletionCallback& callback) { | |
| 498 scoped_refptr<BackendIO> operation(new BackendIO(this, backend_, callback)); | |
| 499 operation->ReadyForSparseIO(entry); | |
| 500 PostOperation(operation.get()); | |
| 501 } | |
| 502 | |
| 503 void InFlightBackendIO::WaitForPendingIO() { | |
| 504 InFlightIO::WaitForPendingIO(); | |
| 505 } | |
| 506 | |
| 507 void InFlightBackendIO::OnOperationComplete(BackgroundIO* operation, | |
| 508 bool cancel) { | |
| 509 BackendIO* op = static_cast<BackendIO*>(operation); | |
| 510 op->OnDone(cancel); | |
| 511 | |
| 512 if (!op->callback().is_null() && (!cancel || op->IsEntryOperation())) | |
| 513 op->callback().Run(op->result()); | |
| 514 } | |
| 515 | |
| 516 void InFlightBackendIO::PostOperation(BackendIO* operation) { | |
| 517 background_thread_->PostTask(FROM_HERE, | |
| 518 base::Bind(&BackendIO::ExecuteOperation, operation)); | |
| 519 OnOperationPosted(operation); | |
| 520 } | |
| 521 | |
| 522 base::WeakPtr<InFlightBackendIO> InFlightBackendIO::GetWeakPtr() { | |
| 523 return ptr_factory_.GetWeakPtr(); | |
| 524 } | |
| 525 | |
| 526 } // namespace | |
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Chromium Code Reviews
Issue 121643003:
Reorganize net/disk_cache into backend specific directories. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src