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/*
* Copyright (c) 2018, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ENGINE_H
#define ENGINE_H
#include "common.h"
#include "sqldb.h"
#include <memory>
#include <string>
#include <vector>
#include <boost/core/noncopyable.hpp>
// Engines have an engine context which is allocated on a per-thread basis.
class EngineContext : boost::noncopyable {
public:
virtual ~EngineContext();
};
/** Streaming mode scans have persistent stream state associated with them. */
class EngineStream : boost::noncopyable {
public:
virtual ~EngineStream();
unsigned int sn;
};
// Benchmarking engine
class Engine : boost::noncopyable {
public:
virtual ~Engine();
// allocate an EngineContext
virtual std::unique_ptr<EngineContext> makeContext() const = 0;
// non-streaming scan
virtual void scan(const char *data, unsigned len, unsigned blockId,
ResultEntry &results, EngineContext &ectx) const = 0;
// vectoring scan
virtual void scan_vectored(const char *const *data,
const unsigned int *len, unsigned int count,
unsigned int streamId, ResultEntry &result,
EngineContext &ectx) const = 0;
// stream open
virtual std::unique_ptr<EngineStream> streamOpen(EngineContext &ectx,
unsigned id) const = 0;
// stream close
virtual void streamClose(std::unique_ptr<EngineStream> stream,
ResultEntry &result) const = 0;
// stream compress and expand
virtual void streamCompressExpand(EngineStream &stream,
std::vector<char> &temp) const = 0;
// streaming scan
virtual void streamScan(EngineStream &stream, const char *data,
unsigned int len, unsigned int id,
ResultEntry &result) const = 0;
virtual void printStats() const = 0;
virtual void printCsvStats() const = 0;
virtual void sqlStats(SqlDB &db) const = 0;
};
#endif // ENGINE_H
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