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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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