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