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f626276271
The hsbench tool provides an easy way to measure Hyperscan's performance for a particular set of patterns and corpus of data to be scanned.
98 lines
3.4 KiB
C++
98 lines
3.4 KiB
C++
/*
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* Copyright (c) 2016, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ENGINEHYPERSCAN_H
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#define ENGINEHYPERSCAN_H
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#include "expressions.h"
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#include "common.h"
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#include "hs_runtime.h"
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#include <memory>
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/** Structure for the result of a single complete scan. */
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struct ResultEntry {
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double seconds = 0; //!< Time taken for scan.
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unsigned int matches = 0; //!< Count of matches found.
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};
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/** Engine context which is allocated on a per-thread basis. */
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class EngineContext {
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public:
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explicit EngineContext(const hs_database_t *db);
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~EngineContext();
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hs_scratch_t *scratch = nullptr;
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};
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/** Streaming mode scans have persistent stream state associated with them. */
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class EngineStream {
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public:
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hs_stream_t *id;
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unsigned int sn;
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EngineContext *ctx;
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};
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/** Hyperscan Engine for scanning data. */
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class EngineHyperscan {
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public:
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explicit EngineHyperscan(hs_database_t *db);
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~EngineHyperscan();
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std::unique_ptr<EngineContext> makeContext() const;
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void scan(const char *data, unsigned int len, unsigned int id,
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ResultEntry &result, EngineContext &ctx) const;
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void scan_vectored(const char *const *data, const unsigned int *len,
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unsigned int count, unsigned int streamId,
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ResultEntry &result, EngineContext &ctx) const;
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std::unique_ptr<EngineStream> streamOpen(EngineContext &ctx,
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unsigned id) const;
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void streamClose(std::unique_ptr<EngineStream> stream,
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ResultEntry &result) const;
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void streamScan(EngineStream &stream, const char *data, unsigned int len,
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unsigned int id, ResultEntry &result) const;
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private:
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hs_database_t *db;
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};
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namespace ue2 {
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struct Grey;
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}
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std::unique_ptr<EngineHyperscan>
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buildEngineHyperscan(const ExpressionMap &expressions, ScanMode scan_mode,
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const std::string &name, const ue2::Grey &grey);
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#endif // ENGINEHYPERSCAN_H
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