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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_BYTES_ELEMENT_READER_H_ | |
6 #define NET_BASE_UPLOAD_BYTES_ELEMENT_READER_H_ | |
7 | |
8 #include <string> | |
9 #include <vector> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/compiler_specific.h" | |
13 #include "net/base/upload_element_reader.h" | |
14 | |
15 namespace net { | |
16 | |
17 // An UploadElementReader implementation for bytes. | |
18 // |data| should outlive this class because this class does not take the | |
19 // ownership of the data. | |
20 class NET_EXPORT UploadBytesElementReader : public UploadElementReader { | |
21 public: | |
22 UploadBytesElementReader(const char* bytes, uint64 length); | |
23 ~UploadBytesElementReader() override; | |
24 | |
25 const char* bytes() const { return bytes_; } | |
26 uint64 length() const { return length_; } | |
27 | |
28 // UploadElementReader overrides: | |
29 const UploadBytesElementReader* AsBytesReader() const override; | |
30 int Init(const CompletionCallback& callback) override; | |
31 uint64 GetContentLength() const override; | |
32 uint64 BytesRemaining() const override; | |
33 bool IsInMemory() const override; | |
34 int Read(IOBuffer* buf, | |
35 int buf_length, | |
36 const CompletionCallback& callback) override; | |
37 | |
38 private: | |
39 const char* const bytes_; | |
40 const uint64 length_; | |
41 uint64 offset_; | |
42 | |
43 DISALLOW_COPY_AND_ASSIGN(UploadBytesElementReader); | |
44 }; | |
45 | |
46 // A subclass of UplodBytesElementReader which owns the data given as a vector. | |
47 class NET_EXPORT UploadOwnedBytesElementReader | |
48 : public UploadBytesElementReader { | |
49 public: | |
50 // |data| is cleared by this ctor. | |
51 explicit UploadOwnedBytesElementReader(std::vector<char>* data); | |
52 ~UploadOwnedBytesElementReader() override; | |
53 | |
54 // Creates UploadOwnedBytesElementReader with a string. | |
55 static UploadOwnedBytesElementReader* CreateWithString( | |
56 const std::string& string); | |
57 | |
58 private: | |
59 std::vector<char> data_; | |
60 | |
61 DISALLOW_COPY_AND_ASSIGN(UploadOwnedBytesElementReader); | |
62 }; | |
63 | |
64 } // namespace net | |
65 | |
66 #endif // NET_BASE_UPLOAD_BYTES_ELEMENT_READER_H_ | |
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