| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_ |
| #define NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "base/compiler_specific.h" |
| #include "base/files/file.h" |
| #include "base/files/file_path.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/time/time.h" |
| #include "net/base/net_export.h" |
| #include "net/base/upload_element_reader.h" |
| |
| namespace base { |
| class TaskRunner; |
| } |
| |
| namespace net { |
| |
| class FileStream; |
| |
| // An UploadElementReader implementation for file. |
| class NET_EXPORT UploadFileElementReader : public UploadElementReader { |
| public: |
| // |task_runner| is used to perform file operations. It must not be NULL. |
| UploadFileElementReader(base::TaskRunner* task_runner, |
| const base::FilePath& path, |
| uint64_t range_offset, |
| uint64_t range_length, |
| const base::Time& expected_modification_time); |
| ~UploadFileElementReader() override; |
| |
| const base::FilePath& path() const { return path_; } |
| uint64_t range_offset() const { return range_offset_; } |
| uint64_t range_length() const { return range_length_; } |
| const base::Time& expected_modification_time() const { |
| return expected_modification_time_; |
| } |
| |
| // UploadElementReader overrides: |
| const UploadFileElementReader* AsFileReader() const override; |
| int Init(const CompletionCallback& callback) override; |
| uint64_t GetContentLength() const override; |
| uint64_t BytesRemaining() const override; |
| int Read(IOBuffer* buf, |
| int buf_length, |
| const CompletionCallback& callback) override; |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(ElementsUploadDataStreamTest, FileSmallerThanLength); |
| FRIEND_TEST_ALL_PREFIXES(HttpNetworkTransactionTest, |
| UploadFileSmallerThanLength); |
| |
| // Resets this instance to the uninitialized state. |
| void Reset(); |
| |
| // These methods are used to implement Init(). |
| void OnOpenCompleted(const CompletionCallback& callback, int result); |
| void OnSeekCompleted(const CompletionCallback& callback, int64_t result); |
| void OnGetFileInfoCompleted(const CompletionCallback& callback, |
| base::File::Info* file_info, |
| bool result); |
| |
| // This method is used to implement Read(). |
| int OnReadCompleted(const CompletionCallback& callback, int result); |
| |
| // Sets an value to override the result for GetContentLength(). |
| // Used for tests. |
| struct NET_EXPORT_PRIVATE ScopedOverridingContentLengthForTests { |
| explicit ScopedOverridingContentLengthForTests(uint64_t value); |
| ~ScopedOverridingContentLengthForTests(); |
| }; |
| |
| scoped_refptr<base::TaskRunner> task_runner_; |
| const base::FilePath path_; |
| const uint64_t range_offset_; |
| const uint64_t range_length_; |
| const base::Time expected_modification_time_; |
| std::unique_ptr<FileStream> file_stream_; |
| uint64_t content_length_; |
| uint64_t bytes_remaining_; |
| base::WeakPtrFactory<UploadFileElementReader> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UploadFileElementReader); |
| }; |
| |
| } // namespace net |
| |
| #endif // NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_ |