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// Copyright 2016 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 COMPONENTS_SUBRESOURCE_FILTER_CORE_BROWSER_COPYING_FILE_STREAM_H_
#define COMPONENTS_SUBRESOURCE_FILTER_CORE_BROWSER_COPYING_FILE_STREAM_H_
#include "base/files/file.h"
#include "base/macros.h"
#include "third_party/protobuf/src/google/protobuf/io/zero_copy_stream_impl_lite.h"
namespace url_pattern_index {
// Implements a CopyingInputStream that reads from a base::File. Can be used in
// combination with CopyingInputStreamAdaptor for reading from that file through
// the ZeroCopyInputStream interface.
class CopyingFileInputStream : public google::protobuf::io::CopyingInputStream {
public:
explicit CopyingFileInputStream(base::File file);
~CopyingFileInputStream() override;
// google::protobuf::io::CopyingInputStream:
int Read(void* buffer, int size) override;
private:
base::File file_;
DISALLOW_COPY_AND_ASSIGN(CopyingFileInputStream);
};
// Implements a CopyingOutputStream that writes to a base::File. Can be used in
// combination with CopyingOutputStreamAdaptor for writing to that file through
// the ZeroCopyOutputStream interface.
class CopyingFileOutputStream
: public google::protobuf::io::CopyingOutputStream {
public:
explicit CopyingFileOutputStream(base::File file);
~CopyingFileOutputStream() override;
// google::protobuf::io::CopyingOutputStream:
bool Write(const void* buffer, int size) override;
private:
base::File file_;
DISALLOW_COPY_AND_ASSIGN(CopyingFileOutputStream);
};
} // namespace url_pattern_index
#endif // COMPONENTS_SUBRESOURCE_FILTER_CORE_BROWSER_COPYING_FILE_STREAM_H_
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