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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_LIBELFFILE_STREAM_BUFFERED_OUTPUT_STREAM_H_
#define ART_LIBELFFILE_STREAM_BUFFERED_OUTPUT_STREAM_H_
#include <memory>
#include "output_stream.h"
#include "base/globals.h"
namespace art {
class BufferedOutputStream final : public OutputStream {
public:
explicit BufferedOutputStream(std::unique_ptr<OutputStream> out);
~BufferedOutputStream() override;
bool WriteFully(const void* buffer, size_t byte_count) override;
off_t Seek(off_t offset, Whence whence) override;
bool Flush() override;
private:
static const size_t kBufferSize = 8 * KB;
bool FlushBuffer();
std::unique_ptr<OutputStream> const out_;
uint8_t buffer_[kBufferSize];
size_t used_;
DISALLOW_COPY_AND_ASSIGN(BufferedOutputStream);
};
} // namespace art
#endif // ART_LIBELFFILE_STREAM_BUFFERED_OUTPUT_STREAM_H_
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