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48 lines
1.4 KiB
48 lines
1.4 KiB
/*
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* Copyright (C) 2011 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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#pragma once
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#include "base/Stream.h"
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#include "IOStream.h"
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namespace emugl {
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class ReadBuffer {
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public:
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explicit ReadBuffer(size_t bufSize);
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~ReadBuffer();
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void setNeededFreeTailSize(int size);
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int getData(IOStream *stream, int minSize); // get fresh data from the stream
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unsigned char *buf() { return m_readPtr; } // return the next read location
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size_t validData() { return m_validData; } // return the amount of valid data in readptr
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void consume(size_t amount); // notify that 'amount' data has been consumed;
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void onLoad(android::base::Stream* stream);
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void onSave(android::base::Stream* stream);
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void printStats();
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private:
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unsigned char *m_buf;
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unsigned char *m_readPtr;
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size_t m_size;
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size_t m_validData;
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uint64_t m_tailMoveTimeUs = 0;
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int m_neededFreeTailSize = 0;
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};
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} // namespace emugl
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