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Side by Side Diff: net/base/upload_file_element_reader.h

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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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 #ifndef NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_
6 #define NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_
7
8 #include "base/compiler_specific.h"
9 #include "base/files/file.h"
10 #include "base/files/file_path.h"
11 #include "base/gtest_prod_util.h"
12 #include "base/memory/ref_counted.h"
13 #include "base/memory/scoped_ptr.h"
14 #include "base/memory/weak_ptr.h"
15 #include "base/time/time.h"
16 #include "net/base/upload_element_reader.h"
17
18 namespace base {
19 class TaskRunner;
20 }
21
22 namespace net {
23
24 class FileStream;
25
26 // An UploadElementReader implementation for file.
27 class NET_EXPORT UploadFileElementReader : public UploadElementReader {
28 public:
29 // |task_runner| is used to perform file operations. It must not be NULL.
30 UploadFileElementReader(base::TaskRunner* task_runner,
31 const base::FilePath& path,
32 uint64 range_offset,
33 uint64 range_length,
34 const base::Time& expected_modification_time);
35 ~UploadFileElementReader() override;
36
37 const base::FilePath& path() const { return path_; }
38 uint64 range_offset() const { return range_offset_; }
39 uint64 range_length() const { return range_length_; }
40 const base::Time& expected_modification_time() const {
41 return expected_modification_time_;
42 }
43
44 // UploadElementReader overrides:
45 const UploadFileElementReader* AsFileReader() const override;
46 int Init(const CompletionCallback& callback) override;
47 uint64 GetContentLength() const override;
48 uint64 BytesRemaining() const override;
49 int Read(IOBuffer* buf,
50 int buf_length,
51 const CompletionCallback& callback) override;
52
53 private:
54 FRIEND_TEST_ALL_PREFIXES(ElementsUploadDataStreamTest, FileSmallerThanLength);
55 FRIEND_TEST_ALL_PREFIXES(HttpNetworkTransactionTest,
56 UploadFileSmallerThanLength);
57
58 // Resets this instance to the uninitialized state.
59 void Reset();
60
61 // These methods are used to implement Init().
62 void OnOpenCompleted(const CompletionCallback& callback, int result);
63 void OnSeekCompleted(const CompletionCallback& callback, int64 result);
64 void OnGetFileInfoCompleted(const CompletionCallback& callback,
65 base::File::Info* file_info,
66 bool result);
67
68 // This method is used to implement Read().
69 int OnReadCompleted(const CompletionCallback& callback, int result);
70
71 // Sets an value to override the result for GetContentLength().
72 // Used for tests.
73 struct NET_EXPORT_PRIVATE ScopedOverridingContentLengthForTests {
74 ScopedOverridingContentLengthForTests(uint64 value);
75 ~ScopedOverridingContentLengthForTests();
76 };
77
78 scoped_refptr<base::TaskRunner> task_runner_;
79 const base::FilePath path_;
80 const uint64 range_offset_;
81 const uint64 range_length_;
82 const base::Time expected_modification_time_;
83 scoped_ptr<FileStream> file_stream_;
84 uint64 content_length_;
85 uint64 bytes_remaining_;
86 base::WeakPtrFactory<UploadFileElementReader> weak_ptr_factory_;
87
88 DISALLOW_COPY_AND_ASSIGN(UploadFileElementReader);
89 };
90
91 } // namespace net
92
93 #endif // NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_
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