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| 1 // Copyright (c) 2010 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 "webkit/fileapi/file_system_file_util_proxy.h" |
| 6 |
| 7 #include "base/message_loop_proxy.h" |
| 8 #include "webkit/fileapi/file_system_file_util_base.h" |
| 9 #include "webkit/fileapi/file_system_operation_context.h" |
| 10 |
| 11 namespace fileapi { |
| 12 |
| 13 class MessageLoopRelay |
| 14 : public base::RefCountedThreadSafe<MessageLoopRelay> { |
| 15 public: |
| 16 MessageLoopRelay(FileSystemOperationContext* fs_context) |
| 17 : file_util_(FileSystemFileUtilBase::GetInstance()), |
| 18 fs_context_(fs_context), |
| 19 origin_message_loop_proxy_( |
| 20 base::MessageLoopProxy::CreateForCurrentThread()), |
| 21 error_code_(base::PLATFORM_FILE_OK) { |
| 22 } |
| 23 |
| 24 bool Start(scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 25 const tracked_objects::Location& from_here) { |
| 26 return message_loop_proxy->PostTask( |
| 27 from_here, |
| 28 NewRunnableMethod(this, &MessageLoopRelay::ProcessOnTargetThread)); |
| 29 } |
| 30 |
| 31 protected: |
| 32 friend class base::RefCountedThreadSafe<MessageLoopRelay>; |
| 33 virtual ~MessageLoopRelay() {} |
| 34 |
| 35 // Called to perform work on the FILE thread. |
| 36 virtual void RunWork() = 0; |
| 37 |
| 38 // Called to notify the callback on the origin thread. |
| 39 virtual void RunCallback() = 0; |
| 40 |
| 41 void set_error_code(base::PlatformFileError error_code) { |
| 42 error_code_ = error_code; |
| 43 } |
| 44 |
| 45 base::PlatformFileError error_code() const { |
| 46 return error_code_; |
| 47 } |
| 48 |
| 49 FileSystemFileUtilBase* file_util_; |
| 50 FileSystemOperationContext* fs_context_; |
| 51 |
| 52 private: |
| 53 void ProcessOnTargetThread() { |
| 54 RunWork(); |
| 55 origin_message_loop_proxy_->PostTask( |
| 56 FROM_HERE, |
| 57 NewRunnableMethod(this, &MessageLoopRelay::RunCallback)); |
| 58 } |
| 59 |
| 60 scoped_refptr<base::MessageLoopProxy> origin_message_loop_proxy_; |
| 61 base::PlatformFileError error_code_; |
| 62 }; |
| 63 |
| 64 class RelayCreateOrOpen : public MessageLoopRelay { |
| 65 public: |
| 66 RelayCreateOrOpen( |
| 67 FileSystemOperationContext* fs_context, |
| 68 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 69 const FilePath& file_path, |
| 70 int file_flags, |
| 71 FileSystemFileUtilProxy::CreateOrOpenCallback* callback) |
| 72 : MessageLoopRelay(fs_context), |
| 73 message_loop_proxy_(message_loop_proxy), |
| 74 file_path_(file_path), |
| 75 file_flags_(file_flags), |
| 76 callback_(callback), |
| 77 file_handle_(base::kInvalidPlatformFileValue), |
| 78 created_(false) { |
| 79 DCHECK(callback); |
| 80 } |
| 81 |
| 82 protected: |
| 83 virtual ~RelayCreateOrOpen() { |
| 84 if (file_handle_ != base::kInvalidPlatformFileValue) |
| 85 fileapi::FileSystemFileUtilProxy::Close( |
| 86 fs_context_, message_loop_proxy_, file_handle_, NULL); |
| 87 } |
| 88 |
| 89 virtual void RunWork() { |
| 90 base::PlatformFileError error_code; |
| 91 error_code = |
| 92 file_util_->CreateOrOpen(fs_context_, file_path_, file_flags_, |
| 93 file_handle_, created_); |
| 94 if (error_code != base::PLATFORM_FILE_OK) |
| 95 set_error_code(error_code); |
| 96 } |
| 97 |
| 98 virtual void RunCallback() { |
| 99 callback_->Run(error_code(), base::PassPlatformFile(&file_handle_), |
| 100 created_); |
| 101 delete callback_; |
| 102 } |
| 103 |
| 104 private: |
| 105 scoped_refptr<base::MessageLoopProxy> message_loop_proxy_; |
| 106 FilePath file_path_; |
| 107 int file_flags_; |
| 108 FileSystemFileUtilProxy::CreateOrOpenCallback* callback_; |
| 109 base::PlatformFile file_handle_; |
| 110 bool created_; |
| 111 }; |
| 112 |
| 113 class RelayCreateTemporary : public MessageLoopRelay { |
| 114 public: |
| 115 RelayCreateTemporary( |
| 116 FileSystemOperationContext* fs_context, |
| 117 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 118 FileSystemFileUtilProxy::CreateTemporaryCallback* callback) |
| 119 : MessageLoopRelay(fs_context), |
| 120 message_loop_proxy_(message_loop_proxy), |
| 121 callback_(callback), |
| 122 file_handle_(base::kInvalidPlatformFileValue) { |
| 123 DCHECK(callback); |
| 124 } |
| 125 |
| 126 protected: |
| 127 virtual ~RelayCreateTemporary() { |
| 128 if (file_handle_ != base::kInvalidPlatformFileValue) |
| 129 fileapi::FileSystemFileUtilProxy::Close( |
| 130 fs_context_, message_loop_proxy_, file_handle_, NULL); |
| 131 } |
| 132 |
| 133 virtual void RunWork() { |
| 134 base::PlatformFileError error_code; |
| 135 error_code = |
| 136 file_util_->CreateTemporary(fs_context_, file_path_, file_handle_); |
| 137 if (error_code != base::PLATFORM_FILE_OK) |
| 138 set_error_code(error_code); |
| 139 } |
| 140 |
| 141 virtual void RunCallback() { |
| 142 callback_->Run(error_code(), base::PassPlatformFile(&file_handle_), |
| 143 file_path_); |
| 144 delete callback_; |
| 145 } |
| 146 |
| 147 private: |
| 148 scoped_refptr<base::MessageLoopProxy> message_loop_proxy_; |
| 149 FileSystemFileUtilProxy::CreateTemporaryCallback* callback_; |
| 150 base::PlatformFile file_handle_; |
| 151 FilePath file_path_; |
| 152 }; |
| 153 |
| 154 class RelayWithStatusCallback : public MessageLoopRelay { |
| 155 public: |
| 156 explicit RelayWithStatusCallback( |
| 157 FileSystemOperationContext* fs_context, |
| 158 FileSystemFileUtilProxy::StatusCallback* callback) |
| 159 : MessageLoopRelay(fs_context), |
| 160 callback_(callback) { |
| 161 // It is OK for callback to be NULL. |
| 162 } |
| 163 |
| 164 protected: |
| 165 virtual void RunCallback() { |
| 166 // The caller may not have been interested in the result. |
| 167 if (callback_) { |
| 168 callback_->Run(error_code()); |
| 169 delete callback_; |
| 170 } |
| 171 } |
| 172 |
| 173 private: |
| 174 FileSystemFileUtilProxy::StatusCallback* callback_; |
| 175 }; |
| 176 |
| 177 class RelayClose : public RelayWithStatusCallback { |
| 178 public: |
| 179 RelayClose(FileSystemOperationContext* fs_context, |
| 180 base::PlatformFile file_handle, |
| 181 FileSystemFileUtilProxy::StatusCallback* callback) |
| 182 : RelayWithStatusCallback(fs_context, callback), |
| 183 file_handle_(file_handle) { |
| 184 } |
| 185 |
| 186 protected: |
| 187 virtual void RunWork() { |
| 188 base::PlatformFileError error_code; |
| 189 error_code = |
| 190 file_util_->Close(fs_context_, file_handle_); |
| 191 if (error_code != base::PLATFORM_FILE_OK) |
| 192 set_error_code(error_code); |
| 193 } |
| 194 |
| 195 private: |
| 196 base::PlatformFile file_handle_; |
| 197 }; |
| 198 |
| 199 class RelayEnsureFileExists : public MessageLoopRelay { |
| 200 public: |
| 201 RelayEnsureFileExists( |
| 202 FileSystemOperationContext* fs_context, |
| 203 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 204 const FilePath& file_path, |
| 205 FileSystemFileUtilProxy::EnsureFileExistsCallback* callback) |
| 206 : MessageLoopRelay(fs_context), |
| 207 message_loop_proxy_(message_loop_proxy), |
| 208 file_path_(file_path), |
| 209 callback_(callback), |
| 210 created_(false) { |
| 211 DCHECK(callback); |
| 212 } |
| 213 |
| 214 protected: |
| 215 virtual void RunWork() { |
| 216 base::PlatformFileError error_code; |
| 217 error_code = file_util_->EnsureFileExists(fs_context_, |
| 218 file_path_, &created_); |
| 219 if (error_code != base::PLATFORM_FILE_OK) |
| 220 set_error_code(error_code); |
| 221 } |
| 222 |
| 223 virtual void RunCallback() { |
| 224 callback_->Run(error_code(), created_); |
| 225 delete callback_; |
| 226 } |
| 227 |
| 228 private: |
| 229 scoped_refptr<base::MessageLoopProxy> message_loop_proxy_; |
| 230 FilePath file_path_; |
| 231 FileSystemFileUtilProxy::EnsureFileExistsCallback* callback_; |
| 232 bool created_; |
| 233 }; |
| 234 |
| 235 class RelayDelete : public RelayWithStatusCallback { |
| 236 public: |
| 237 RelayDelete(FileSystemOperationContext* fs_context, |
| 238 const FilePath& file_path, |
| 239 bool recursive, |
| 240 FileSystemFileUtilProxy::StatusCallback* callback) |
| 241 : RelayWithStatusCallback(fs_context, callback), |
| 242 file_path_(file_path), |
| 243 recursive_(recursive) { |
| 244 } |
| 245 |
| 246 protected: |
| 247 virtual void RunWork() { |
| 248 base::PlatformFileError error_code; |
| 249 error_code = |
| 250 file_util_->Delete(fs_context_, file_path_, recursive_); |
| 251 if (error_code != base::PLATFORM_FILE_OK) |
| 252 set_error_code(error_code); |
| 253 } |
| 254 |
| 255 private: |
| 256 FilePath file_path_; |
| 257 bool recursive_; |
| 258 }; |
| 259 |
| 260 class RelayCopy : public RelayWithStatusCallback { |
| 261 public: |
| 262 RelayCopy(FileSystemOperationContext* fs_context, |
| 263 const FilePath& src_file_path, |
| 264 const FilePath& dest_file_path, |
| 265 FileSystemFileUtilProxy::StatusCallback* callback) |
| 266 : RelayWithStatusCallback(fs_context, callback), |
| 267 src_file_path_(src_file_path), |
| 268 dest_file_path_(dest_file_path) { |
| 269 } |
| 270 |
| 271 protected: |
| 272 virtual void RunWork() { |
| 273 base::PlatformFileError error_code; |
| 274 error_code = |
| 275 file_util_->Copy(fs_context_, src_file_path_, dest_file_path_); |
| 276 if (error_code != base::PLATFORM_FILE_OK) |
| 277 set_error_code(error_code); |
| 278 } |
| 279 |
| 280 private: |
| 281 FilePath src_file_path_; |
| 282 FilePath dest_file_path_; |
| 283 }; |
| 284 |
| 285 class RelayMove : public RelayWithStatusCallback { |
| 286 public: |
| 287 RelayMove(FileSystemOperationContext* fs_context, |
| 288 const FilePath& src_file_path, |
| 289 const FilePath& dest_file_path, |
| 290 FileSystemFileUtilProxy::StatusCallback* callback) |
| 291 : RelayWithStatusCallback(fs_context, callback), |
| 292 src_file_path_(src_file_path), |
| 293 dest_file_path_(dest_file_path) { |
| 294 } |
| 295 |
| 296 protected: |
| 297 virtual void RunWork() { |
| 298 base::PlatformFileError error_code; |
| 299 error_code = |
| 300 file_util_->Move(fs_context_, src_file_path_, dest_file_path_); |
| 301 if (error_code != base::PLATFORM_FILE_OK) |
| 302 set_error_code(error_code); |
| 303 } |
| 304 |
| 305 private: |
| 306 FilePath src_file_path_; |
| 307 FilePath dest_file_path_; |
| 308 }; |
| 309 |
| 310 class RelayCreateDirectory : public RelayWithStatusCallback { |
| 311 public: |
| 312 RelayCreateDirectory( |
| 313 FileSystemOperationContext* fs_context, |
| 314 const FilePath& file_path, |
| 315 bool exclusive, |
| 316 bool recursive, |
| 317 FileSystemFileUtilProxy::StatusCallback* callback) |
| 318 : RelayWithStatusCallback(fs_context, callback), |
| 319 file_path_(file_path), |
| 320 exclusive_(exclusive), |
| 321 recursive_(recursive) { |
| 322 } |
| 323 |
| 324 protected: |
| 325 virtual void RunWork() { |
| 326 base::PlatformFileError error_code; |
| 327 error_code = file_util_->CreateDirectory(fs_context_, |
| 328 file_path_, exclusive_, recursive_); |
| 329 if (error_code != base::PLATFORM_FILE_OK) |
| 330 set_error_code(error_code); |
| 331 } |
| 332 |
| 333 private: |
| 334 FilePath file_path_; |
| 335 bool exclusive_; |
| 336 bool recursive_; |
| 337 }; |
| 338 |
| 339 class RelayReadDirectory : public MessageLoopRelay { |
| 340 public: |
| 341 RelayReadDirectory( |
| 342 FileSystemOperationContext* fs_context, |
| 343 const FilePath& file_path, |
| 344 FileSystemFileUtilProxy::ReadDirectoryCallback* callback) |
| 345 : MessageLoopRelay(fs_context), |
| 346 callback_(callback), |
| 347 file_path_(file_path) { |
| 348 DCHECK(callback); |
| 349 } |
| 350 |
| 351 protected: |
| 352 virtual void RunWork() { |
| 353 base::PlatformFileError error_code; |
| 354 error_code = file_util_->ReadDirectory(fs_context_, |
| 355 file_path_, entries_); |
| 356 if (error_code != base::PLATFORM_FILE_OK) |
| 357 set_error_code(error_code); |
| 358 } |
| 359 |
| 360 virtual void RunCallback() { |
| 361 callback_->Run(error_code(), entries_); |
| 362 delete callback_; |
| 363 } |
| 364 |
| 365 private: |
| 366 FileSystemFileUtilProxy::ReadDirectoryCallback* callback_; |
| 367 FilePath file_path_; |
| 368 std::vector<base::FileUtilProxy::Entry> entries_; |
| 369 }; |
| 370 |
| 371 class RelayGetFileInfo : public MessageLoopRelay { |
| 372 public: |
| 373 RelayGetFileInfo( |
| 374 FileSystemOperationContext* fs_context, |
| 375 const FilePath& file_path, |
| 376 FileSystemFileUtilProxy::GetFileInfoCallback* callback) |
| 377 : MessageLoopRelay(fs_context), |
| 378 callback_(callback), |
| 379 file_path_(file_path) { |
| 380 DCHECK(callback); |
| 381 } |
| 382 |
| 383 protected: |
| 384 virtual void RunWork() { |
| 385 base::PlatformFileError error_code; |
| 386 error_code = file_util_->GetFileInfo(fs_context_, |
| 387 file_path_, file_info_); |
| 388 if (error_code != base::PLATFORM_FILE_OK) |
| 389 set_error_code(error_code); |
| 390 } |
| 391 |
| 392 virtual void RunCallback() { |
| 393 callback_->Run(error_code(), file_info_); |
| 394 delete callback_; |
| 395 } |
| 396 |
| 397 private: |
| 398 FileSystemFileUtilProxy::GetFileInfoCallback* callback_; |
| 399 FilePath file_path_; |
| 400 base::PlatformFileInfo file_info_; |
| 401 }; |
| 402 |
| 403 class RelayGetFileInfoFromPlatformFile : public MessageLoopRelay { |
| 404 public: |
| 405 RelayGetFileInfoFromPlatformFile( |
| 406 FileSystemOperationContext* fs_context, |
| 407 base::PlatformFile file, |
| 408 FileSystemFileUtilProxy::GetFileInfoCallback* callback) |
| 409 : MessageLoopRelay(fs_context), |
| 410 callback_(callback), |
| 411 file_(file) { |
| 412 DCHECK(callback); |
| 413 } |
| 414 |
| 415 protected: |
| 416 virtual void RunWork() { |
| 417 base::PlatformFileError error_code; |
| 418 error_code = file_util_->GetFileInfoFromPlatformFile(fs_context_, |
| 419 file_, file_info_); |
| 420 if (error_code != base::PLATFORM_FILE_OK) |
| 421 set_error_code(error_code); |
| 422 } |
| 423 |
| 424 virtual void RunCallback() { |
| 425 callback_->Run(error_code(), file_info_); |
| 426 delete callback_; |
| 427 } |
| 428 |
| 429 private: |
| 430 FileSystemFileUtilProxy::GetFileInfoCallback* callback_; |
| 431 base::PlatformFile file_; |
| 432 base::PlatformFileInfo file_info_; |
| 433 }; |
| 434 |
| 435 class RelayRead : public MessageLoopRelay { |
| 436 public: |
| 437 RelayRead( |
| 438 FileSystemOperationContext* fs_context, |
| 439 base::PlatformFile file, |
| 440 int64 offset, |
| 441 int bytes_to_read, |
| 442 FileSystemFileUtilProxy::ReadCallback* callback) |
| 443 : MessageLoopRelay(fs_context), |
| 444 file_(file), |
| 445 offset_(offset), |
| 446 buffer_(new char[bytes_to_read]), |
| 447 bytes_to_read_(bytes_to_read), |
| 448 callback_(callback), |
| 449 bytes_read_(0) { |
| 450 } |
| 451 |
| 452 protected: |
| 453 virtual void RunWork() { |
| 454 base::PlatformFileError error_code; |
| 455 error_code = file_util_->Read(fs_context_, |
| 456 file_, offset_, bytes_to_read_, |
| 457 bytes_read_, buffer_.get()); |
| 458 if (error_code != base::PLATFORM_FILE_OK) |
| 459 set_error_code(error_code); |
| 460 } |
| 461 |
| 462 virtual void RunCallback() { |
| 463 if (callback_) { |
| 464 callback_->Run(error_code(), buffer_.get(), bytes_read_); |
| 465 delete callback_; |
| 466 } |
| 467 } |
| 468 |
| 469 private: |
| 470 base::PlatformFile file_; |
| 471 int64 offset_; |
| 472 scoped_array<char> buffer_; |
| 473 int bytes_to_read_; |
| 474 FileSystemFileUtilProxy::ReadCallback* callback_; |
| 475 int bytes_read_; |
| 476 }; |
| 477 |
| 478 class RelayWrite : public MessageLoopRelay { |
| 479 public: |
| 480 RelayWrite( |
| 481 FileSystemOperationContext* fs_context, |
| 482 base::PlatformFile file, |
| 483 int64 offset, |
| 484 const char* buffer, |
| 485 int bytes_to_write, |
| 486 FileSystemFileUtilProxy::WriteCallback* callback) |
| 487 : MessageLoopRelay(fs_context), |
| 488 file_(file), |
| 489 offset_(offset), |
| 490 buffer_(new char[bytes_to_write]), |
| 491 bytes_to_write_(bytes_to_write), |
| 492 callback_(callback) { |
| 493 memcpy(buffer_.get(), buffer, bytes_to_write); |
| 494 } |
| 495 |
| 496 protected: |
| 497 virtual void RunWork() { |
| 498 base::PlatformFileError error_code; |
| 499 error_code = file_util_->Write(fs_context_, |
| 500 file_, offset_, bytes_to_write_, |
| 501 bytes_written_, buffer_.get()); |
| 502 if (error_code != base::PLATFORM_FILE_OK) |
| 503 set_error_code(error_code); |
| 504 } |
| 505 |
| 506 virtual void RunCallback() { |
| 507 if (callback_) { |
| 508 callback_->Run(error_code(), bytes_written_); |
| 509 delete callback_; |
| 510 } |
| 511 } |
| 512 |
| 513 private: |
| 514 base::PlatformFile file_; |
| 515 int64 offset_; |
| 516 scoped_array<char> buffer_; |
| 517 int bytes_to_write_; |
| 518 FileSystemFileUtilProxy::WriteCallback* callback_; |
| 519 int bytes_written_; |
| 520 }; |
| 521 |
| 522 class RelayTouch : public RelayWithStatusCallback { |
| 523 public: |
| 524 RelayTouch( |
| 525 FileSystemOperationContext* fs_context, |
| 526 base::PlatformFile file, |
| 527 const base::Time& last_access_time, |
| 528 const base::Time& last_modified_time, |
| 529 FileSystemFileUtilProxy::StatusCallback* callback) |
| 530 : RelayWithStatusCallback(fs_context, callback), |
| 531 file_(file), |
| 532 last_access_time_(last_access_time), |
| 533 last_modified_time_(last_modified_time) { |
| 534 } |
| 535 |
| 536 protected: |
| 537 virtual void RunWork() { |
| 538 base::PlatformFileError error_code; |
| 539 error_code = file_util_->Touch(fs_context_, file_, |
| 540 last_access_time_, last_modified_time_); |
| 541 if (error_code != base::PLATFORM_FILE_OK) |
| 542 set_error_code(error_code); |
| 543 } |
| 544 |
| 545 private: |
| 546 base::PlatformFile file_; |
| 547 base::Time last_access_time_; |
| 548 base::Time last_modified_time_; |
| 549 }; |
| 550 |
| 551 class RelayTouchFilePath : public RelayWithStatusCallback { |
| 552 public: |
| 553 RelayTouchFilePath( |
| 554 FileSystemOperationContext* fs_context, |
| 555 const FilePath& file_path, |
| 556 const base::Time& last_access_time, |
| 557 const base::Time& last_modified_time, |
| 558 FileSystemFileUtilProxy::StatusCallback* callback) |
| 559 : RelayWithStatusCallback(fs_context, callback), |
| 560 file_path_(file_path), |
| 561 last_access_time_(last_access_time), |
| 562 last_modified_time_(last_modified_time) { |
| 563 } |
| 564 |
| 565 protected: |
| 566 virtual void RunWork() { |
| 567 base::PlatformFileError error_code; |
| 568 error_code = file_util_->TouchFilePath(fs_context_, file_path_, |
| 569 last_access_time_, |
| 570 last_modified_time_); |
| 571 if (error_code != base::PLATFORM_FILE_OK) |
| 572 set_error_code(error_code); |
| 573 } |
| 574 |
| 575 private: |
| 576 FilePath file_path_; |
| 577 base::Time last_access_time_; |
| 578 base::Time last_modified_time_; |
| 579 }; |
| 580 |
| 581 class RelayTruncatePlatformFile : public RelayWithStatusCallback { |
| 582 public: |
| 583 RelayTruncatePlatformFile( |
| 584 FileSystemOperationContext* fs_context, |
| 585 base::PlatformFile file, |
| 586 int64 length, |
| 587 FileSystemFileUtilProxy::StatusCallback* callback) |
| 588 : RelayWithStatusCallback(fs_context, callback), |
| 589 file_(file), |
| 590 length_(length) { |
| 591 } |
| 592 |
| 593 protected: |
| 594 virtual void RunWork() { |
| 595 base::PlatformFileError error_code; |
| 596 error_code = file_util_->TruncatePlatformFile(fs_context_, |
| 597 file_, length_); |
| 598 if (error_code != base::PLATFORM_FILE_OK) |
| 599 set_error_code(error_code); |
| 600 } |
| 601 |
| 602 private: |
| 603 base::PlatformFile file_; |
| 604 int64 length_; |
| 605 }; |
| 606 |
| 607 class RelayTruncate : public RelayWithStatusCallback { |
| 608 public: |
| 609 RelayTruncate(FileSystemOperationContext* fs_context, |
| 610 const FilePath& path, |
| 611 int64 length, |
| 612 FileSystemFileUtilProxy::StatusCallback* callback) |
| 613 : RelayWithStatusCallback(fs_context, callback), |
| 614 path_(path), |
| 615 length_(length) { |
| 616 } |
| 617 |
| 618 protected: |
| 619 virtual void RunWork() { |
| 620 base::PlatformFileError error_code; |
| 621 error_code = file_util_->Truncate(fs_context_, path_, length_); |
| 622 if (error_code != base::PLATFORM_FILE_OK) |
| 623 set_error_code(error_code); |
| 624 } |
| 625 |
| 626 private: |
| 627 FilePath path_; |
| 628 int64 length_; |
| 629 }; |
| 630 |
| 631 class RelayFlush : public RelayWithStatusCallback { |
| 632 public: |
| 633 RelayFlush(FileSystemOperationContext* fs_context, |
| 634 base::PlatformFile file, |
| 635 FileSystemFileUtilProxy::StatusCallback* callback) |
| 636 : RelayWithStatusCallback(fs_context, callback), |
| 637 file_(file) { |
| 638 } |
| 639 |
| 640 protected: |
| 641 virtual void RunWork() { |
| 642 base::PlatformFileError error_code; |
| 643 error_code = file_util_->Flush(fs_context_, file_); |
| 644 if (error_code != base::PLATFORM_FILE_OK) |
| 645 set_error_code(error_code); |
| 646 } |
| 647 |
| 648 private: |
| 649 base::PlatformFile file_; |
| 650 }; |
| 651 |
| 652 bool Start(const tracked_objects::Location& from_here, |
| 653 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 654 scoped_refptr<MessageLoopRelay> relay) { |
| 655 return relay->Start(message_loop_proxy, from_here); |
| 656 } |
| 657 |
| 658 // static |
| 659 bool FileSystemFileUtilProxy::CreateOrOpen( |
| 660 FileSystemOperationContext* fs_context, |
| 661 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 662 const FilePath& file_path, int file_flags, |
| 663 CreateOrOpenCallback* callback) { |
| 664 return Start(FROM_HERE, message_loop_proxy, new RelayCreateOrOpen( |
| 665 fs_context, message_loop_proxy, file_path, file_flags, callback)); |
| 666 } |
| 667 |
| 668 // static |
| 669 bool FileSystemFileUtilProxy::CreateTemporary( |
| 670 FileSystemOperationContext* fs_context, |
| 671 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 672 CreateTemporaryCallback* callback) { |
| 673 return Start(FROM_HERE, message_loop_proxy, new RelayCreateTemporary( |
| 674 fs_context, message_loop_proxy, callback)); |
| 675 } |
| 676 |
| 677 // static |
| 678 bool FileSystemFileUtilProxy::Close( |
| 679 FileSystemOperationContext* fs_context, |
| 680 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 681 base::PlatformFile file_handle, |
| 682 StatusCallback* callback) { |
| 683 return Start(FROM_HERE, message_loop_proxy, |
| 684 new RelayClose(fs_context, file_handle, callback)); |
| 685 } |
| 686 |
| 687 // static |
| 688 bool FileSystemFileUtilProxy::EnsureFileExists( |
| 689 FileSystemOperationContext* fs_context, |
| 690 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 691 const FilePath& file_path, |
| 692 EnsureFileExistsCallback* callback) { |
| 693 return Start(FROM_HERE, message_loop_proxy, new RelayEnsureFileExists( |
| 694 fs_context, message_loop_proxy, file_path, callback)); |
| 695 } |
| 696 |
| 697 // Retrieves the information about a file. It is invalid to pass NULL for the |
| 698 // callback. |
| 699 bool FileSystemFileUtilProxy::GetFileInfo( |
| 700 FileSystemOperationContext* fs_context, |
| 701 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 702 const FilePath& file_path, |
| 703 GetFileInfoCallback* callback) { |
| 704 return Start(FROM_HERE, message_loop_proxy, new RelayGetFileInfo( |
| 705 fs_context, file_path, callback)); |
| 706 } |
| 707 |
| 708 // static |
| 709 bool FileSystemFileUtilProxy::GetFileInfoFromPlatformFile( |
| 710 FileSystemOperationContext* fs_context, |
| 711 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 712 base::PlatformFile file, |
| 713 GetFileInfoCallback* callback) { |
| 714 return Start(FROM_HERE, message_loop_proxy, |
| 715 new RelayGetFileInfoFromPlatformFile(fs_context, |
| 716 file, callback)); |
| 717 } |
| 718 |
| 719 // static |
| 720 bool FileSystemFileUtilProxy::ReadDirectory( |
| 721 FileSystemOperationContext* fs_context, |
| 722 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 723 const FilePath& file_path, |
| 724 ReadDirectoryCallback* callback) { |
| 725 return Start(FROM_HERE, message_loop_proxy, new RelayReadDirectory( |
| 726 fs_context, file_path, callback)); |
| 727 } |
| 728 |
| 729 // static |
| 730 bool FileSystemFileUtilProxy::CreateDirectory( |
| 731 FileSystemOperationContext* fs_context, |
| 732 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 733 const FilePath& file_path, |
| 734 bool exclusive, |
| 735 bool recursive, |
| 736 StatusCallback* callback) { |
| 737 return Start(FROM_HERE, message_loop_proxy, new RelayCreateDirectory( |
| 738 fs_context, file_path, exclusive, recursive, callback)); |
| 739 } |
| 740 |
| 741 // static |
| 742 bool FileSystemFileUtilProxy::Copy( |
| 743 FileSystemOperationContext* fs_context, |
| 744 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 745 const FilePath& src_file_path, |
| 746 const FilePath& dest_file_path, |
| 747 StatusCallback* callback) { |
| 748 return Start(FROM_HERE, message_loop_proxy, |
| 749 new RelayCopy(fs_context, |
| 750 src_file_path, dest_file_path, callback)); |
| 751 } |
| 752 |
| 753 // static |
| 754 bool FileSystemFileUtilProxy::Move( |
| 755 FileSystemOperationContext* fs_context, |
| 756 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 757 const FilePath& src_file_path, |
| 758 const FilePath& dest_file_path, |
| 759 StatusCallback* callback) { |
| 760 return Start(FROM_HERE, message_loop_proxy, |
| 761 new RelayMove(fs_context, |
| 762 src_file_path, dest_file_path, callback)); |
| 763 } |
| 764 |
| 765 // static |
| 766 bool FileSystemFileUtilProxy::Delete( |
| 767 FileSystemOperationContext* fs_context, |
| 768 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 769 const FilePath& file_path, |
| 770 bool recursive, |
| 771 StatusCallback* callback) { |
| 772 return Start(FROM_HERE, message_loop_proxy, |
| 773 new RelayDelete(fs_context, file_path, recursive, callback)); |
| 774 } |
| 775 |
| 776 // static |
| 777 bool FileSystemFileUtilProxy::RecursiveDelete( |
| 778 FileSystemOperationContext* fs_context, |
| 779 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 780 const FilePath& file_path, |
| 781 StatusCallback* callback) { |
| 782 return Start(FROM_HERE, message_loop_proxy, |
| 783 new RelayDelete(fs_context, file_path, true, callback)); |
| 784 } |
| 785 |
| 786 // static |
| 787 bool FileSystemFileUtilProxy::Read( |
| 788 FileSystemOperationContext* fs_context, |
| 789 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 790 base::PlatformFile file, |
| 791 int64 offset, |
| 792 int bytes_to_read, |
| 793 ReadCallback* callback) { |
| 794 return Start(FROM_HERE, message_loop_proxy, |
| 795 new RelayRead(fs_context, |
| 796 file, offset, bytes_to_read, callback)); |
| 797 } |
| 798 |
| 799 // static |
| 800 bool FileSystemFileUtilProxy::Write( |
| 801 FileSystemOperationContext* fs_context, |
| 802 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 803 base::PlatformFile file, |
| 804 int64 offset, |
| 805 const char* buffer, |
| 806 int bytes_to_write, |
| 807 WriteCallback* callback) { |
| 808 return Start(FROM_HERE, message_loop_proxy, |
| 809 new RelayWrite(fs_context, |
| 810 file, offset, buffer, bytes_to_write, callback)); |
| 811 } |
| 812 |
| 813 // static |
| 814 bool FileSystemFileUtilProxy::Touch( |
| 815 FileSystemOperationContext* fs_context, |
| 816 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 817 base::PlatformFile file, |
| 818 const base::Time& last_access_time, |
| 819 const base::Time& last_modified_time, |
| 820 StatusCallback* callback) { |
| 821 return Start(FROM_HERE, message_loop_proxy, |
| 822 new RelayTouch(fs_context, |
| 823 file, last_access_time, last_modified_time, |
| 824 callback)); |
| 825 } |
| 826 |
| 827 // static |
| 828 bool FileSystemFileUtilProxy::Touch( |
| 829 FileSystemOperationContext* fs_context, |
| 830 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 831 const FilePath& file_path, |
| 832 const base::Time& last_access_time, |
| 833 const base::Time& last_modified_time, |
| 834 StatusCallback* callback) { |
| 835 return Start(FROM_HERE, message_loop_proxy, |
| 836 new RelayTouchFilePath(fs_context, |
| 837 file_path, last_access_time, |
| 838 last_modified_time, callback)); |
| 839 } |
| 840 |
| 841 // static |
| 842 bool FileSystemFileUtilProxy::Truncate( |
| 843 FileSystemOperationContext* fs_context, |
| 844 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 845 base::PlatformFile file, |
| 846 int64 length, |
| 847 StatusCallback* callback) { |
| 848 return Start(FROM_HERE, message_loop_proxy, |
| 849 new RelayTruncatePlatformFile(fs_context, |
| 850 file, length, callback)); |
| 851 } |
| 852 |
| 853 // static |
| 854 bool FileSystemFileUtilProxy::Truncate( |
| 855 FileSystemOperationContext* fs_context, |
| 856 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 857 const FilePath& path, |
| 858 int64 length, |
| 859 StatusCallback* callback) { |
| 860 return Start(FROM_HERE, message_loop_proxy, |
| 861 new RelayTruncate(fs_context, path, length, callback)); |
| 862 } |
| 863 |
| 864 // static |
| 865 bool FileSystemFileUtilProxy::Flush( |
| 866 FileSystemOperationContext* fs_context, |
| 867 scoped_refptr<base::MessageLoopProxy> message_loop_proxy, |
| 868 base::PlatformFile file, |
| 869 StatusCallback* callback) { |
| 870 return Start(FROM_HERE, message_loop_proxy, |
| 871 new RelayFlush(fs_context, file, callback)); |
| 872 } |
| 873 |
| 874 } // namespace fileapi |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 6471019:
Stackable file_util for FileAPIs. Sample code for discussion. Incomplete. Cannot be compiled. (Closed)
Base URL: http://git.chromium.org/git/chromium.git@trunk