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