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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "third_party/zlib/google/zip_reader.h" | 5 #include "third_party/zlib/google/zip_reader.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/files/file.h" | 8 #include "base/files/file.h" |
| 9 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 #include "base/message_loop/message_loop.h" | 10 #include "base/message_loop/message_loop.h" |
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| 357 | 357 |
| 358 const int open_result = unzOpenCurrentFile(zip_file_); | 358 const int open_result = unzOpenCurrentFile(zip_file_); |
| 359 if (open_result != UNZ_OK) | 359 if (open_result != UNZ_OK) |
| 360 return false; | 360 return false; |
| 361 | 361 |
| 362 // The original_size() is the best hint for the real size, so it saves | 362 // The original_size() is the best hint for the real size, so it saves |
| 363 // doing reallocations for the common case when the uncompressed size is | 363 // doing reallocations for the common case when the uncompressed size is |
| 364 // correct. However, we need to assume that the uncompressed size could be | 364 // correct. However, we need to assume that the uncompressed size could be |
| 365 // incorrect therefore this function needs to read as much data as possible. | 365 // incorrect therefore this function needs to read as much data as possible. |
| 366 std::string contents; | 366 std::string contents; |
| 367 contents.reserve(std::min<size_t>( | 367 contents.reserve(static_cast<size_t>(std::min( |
| 368 max_read_bytes, current_entry_info()->original_size())); | 368 static_cast<int64>(max_read_bytes), |
| 369 current_entry_info()->original_size()))); |
| 369 | 370 |
| 370 bool success = true; // This becomes false when something bad happens. | 371 bool success = true; // This becomes false when something bad happens. |
| 371 char buf[internal::kZipBufSize]; | 372 char buf[internal::kZipBufSize]; |
| 372 while (true) { | 373 while (true) { |
| 373 const int num_bytes_read = unzReadCurrentFile(zip_file_, buf, | 374 const int num_bytes_read = unzReadCurrentFile(zip_file_, buf, |
| 374 internal::kZipBufSize); | 375 internal::kZipBufSize); |
| 375 if (num_bytes_read == 0) { | 376 if (num_bytes_read == 0) { |
| 376 // Reached the end of the file. | 377 // Reached the end of the file. |
| 377 break; | 378 break; |
| 378 } else if (num_bytes_read < 0) { | 379 } else if (num_bytes_read < 0) { |
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| 455 success_callback, | 456 success_callback, |
| 456 failure_callback, | 457 failure_callback, |
| 457 progress_callback, | 458 progress_callback, |
| 458 current_progress)); | 459 current_progress)); |
| 459 | 460 |
| 460 } | 461 } |
| 461 } | 462 } |
| 462 | 463 |
| 463 | 464 |
| 464 } // namespace zip | 465 } // namespace zip |
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