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39c6a0c7bf
Literals that cannot lead to a report in the first ROSE_SMALL_BLOCK_LEN bytes may be dropped from the small block table.
73 lines
2.8 KiB
C++
73 lines
2.8 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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/**
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* \file
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* \brief Rose build: code for constructing literal tables.
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*/
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#ifndef ROSE_BUILD_MATCHERS_H
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#define ROSE_BUILD_MATCHERS_H
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#include "rose_build_impl.h"
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#include <vector>
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struct HWLM;
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namespace ue2 {
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struct hwlmLiteral;
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/**
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* \brief Build up a vector of literals for the given table.
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*
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* If max_offset is specified (and not ROSE_BOUND_INF), then literals that can
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* only lead to a pattern match after max_offset may be excluded.
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*/
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std::vector<hwlmLiteral> fillHamsterLiteralList(const RoseBuildImpl &build,
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rose_literal_table table, u32 max_offset = ROSE_BOUND_INF);
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aligned_unique_ptr<HWLM> buildFloatingMatcher(const RoseBuildImpl &build,
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rose_group *fgroups,
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size_t *fsize,
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size_t *historyRequired,
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size_t *streamStateRequired);
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aligned_unique_ptr<HWLM> buildSmallBlockMatcher(const RoseBuildImpl &build,
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size_t *sbsize);
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aligned_unique_ptr<HWLM> buildEodAnchoredMatcher(const RoseBuildImpl &build,
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size_t *esize);
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void findMoreLiteralMasks(RoseBuildImpl &build);
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} // namespace ue2
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#endif // ROSE_BUILD_MATCHERS_H
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