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Side by Side Diff: net/url_request/url_request_file_job.cc

Issue 520303003: Change base/file_utils.h includes to base/files/file_utils.h in net/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 3 months ago
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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 // For loading files, we make use of overlapped i/o to ensure that reading from 5 // For loading files, we make use of overlapped i/o to ensure that reading from
6 // the filesystem (e.g., a network filesystem) does not block the calling 6 // the filesystem (e.g., a network filesystem) does not block the calling
7 // thread. An alternative approach would be to use a background thread or pool 7 // thread. An alternative approach would be to use a background thread or pool
8 // of threads, but it seems better to leverage the operating system's ability 8 // of threads, but it seems better to leverage the operating system's ability
9 // to do background file reads for us. 9 // to do background file reads for us.
10 // 10 //
11 // Since overlapped reads require a 'static' buffer for the duration of the 11 // Since overlapped reads require a 'static' buffer for the duration of the
12 // asynchronous read, the URLRequestFileJob keeps a buffer as a member var. In 12 // asynchronous read, the URLRequestFileJob keeps a buffer as a member var. In
13 // URLRequestFileJob::Read, data is simply copied from the object's buffer into 13 // URLRequestFileJob::Read, data is simply copied from the object's buffer into
14 // the given buffer. If there is no data to copy, the URLRequestFileJob 14 // the given buffer. If there is no data to copy, the URLRequestFileJob
15 // attempts to read more from the file to fill its buffer. If reading from the 15 // attempts to read more from the file to fill its buffer. If reading from the
16 // file does not complete synchronously, then the URLRequestFileJob waits for a 16 // file does not complete synchronously, then the URLRequestFileJob waits for a
17 // signal from the OS that the overlapped read has completed. It does so by 17 // signal from the OS that the overlapped read has completed. It does so by
18 // leveraging the MessageLoop::WatchObject API. 18 // leveraging the MessageLoop::WatchObject API.
19 19
20 #include "net/url_request/url_request_file_job.h" 20 #include "net/url_request/url_request_file_job.h"
21 21
22 #include "base/bind.h" 22 #include "base/bind.h"
23 #include "base/compiler_specific.h" 23 #include "base/compiler_specific.h"
24 #include "base/file_util.h" 24 #include "base/files/file_util.h"
25 #include "base/message_loop/message_loop.h" 25 #include "base/message_loop/message_loop.h"
26 #include "base/strings/string_util.h" 26 #include "base/strings/string_util.h"
27 #include "base/synchronization/lock.h" 27 #include "base/synchronization/lock.h"
28 #include "base/task_runner.h" 28 #include "base/task_runner.h"
29 #include "base/threading/thread_restrictions.h" 29 #include "base/threading/thread_restrictions.h"
30 #include "build/build_config.h" 30 #include "build/build_config.h"
31 #include "net/base/file_stream.h" 31 #include "net/base/file_stream.h"
32 #include "net/base/filename_util.h" 32 #include "net/base/filename_util.h"
33 #include "net/base/io_buffer.h" 33 #include "net/base/io_buffer.h"
34 #include "net/base/load_flags.h" 34 #include "net/base/load_flags.h"
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307 if (result == 0) { 307 if (result == 0) {
308 NotifyDone(URLRequestStatus()); 308 NotifyDone(URLRequestStatus());
309 } else if (result < 0) { 309 } else if (result < 0) {
310 NotifyDone(URLRequestStatus(URLRequestStatus::FAILED, result)); 310 NotifyDone(URLRequestStatus(URLRequestStatus::FAILED, result));
311 } 311 }
312 312
313 NotifyReadComplete(result); 313 NotifyReadComplete(result);
314 } 314 }
315 315
316 } // namespace net 316 } // namespace net
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