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86 lines
3.3 KiB
C++
86 lines
3.3 KiB
C++
/*
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* Copyright (c) 2015-2016, 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 FDR_COMPILE_INTERNAL_H
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#define FDR_COMPILE_INTERNAL_H
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#include "ue2common.h"
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#include "hwlm/hwlm_literal.h"
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#include "util/alloc.h"
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#include <map>
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#include <utility>
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#include <vector>
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struct FDRConfirm;
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struct LitInfo;
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namespace ue2 {
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// a pile of decorative typedefs
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// good for documentation purposes more than anything else
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typedef u32 LiteralIndex;
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typedef u32 SuffixPositionInString; // zero is last byte, counting back
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// into the string
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typedef u32 BucketIndex;
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typedef u32 SchemeBitIndex;
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typedef u32 PositionInBucket; // zero is 'we are matching right now!",
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// counting towards future matches
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class EngineDescription;
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class FDREngineDescription;
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struct hwlmStreamingControl;
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std::pair<aligned_unique_ptr<u8>, size_t> setupFullMultiConfs(
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const std::vector<hwlmLiteral> &lits, const EngineDescription &eng,
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std::map<BucketIndex, std::vector<LiteralIndex>> &bucketToLits,
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bool make_small);
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// all suffixes include an implicit max_bucket_width suffix to ensure that
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// we always read a full-scale flood "behind" us in terms of what's in our
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// state; if we don't have a flood that's long enough we won't be in the
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// right state yet to allow blindly advancing
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std::pair<aligned_unique_ptr<u8>, size_t>
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setupFDRFloodControl(const std::vector<hwlmLiteral> &lits,
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const EngineDescription &eng);
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std::pair<aligned_unique_ptr<u8>, size_t>
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fdrBuildTableStreaming(const std::vector<hwlmLiteral> &lits,
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hwlmStreamingControl &stream_control);
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static constexpr u32 HINT_INVALID = 0xffffffff;
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// fdr_compile_util.cpp utilities
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size_t maxLen(const std::vector<hwlmLiteral> &lits);
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size_t minLenCount(const std::vector<hwlmLiteral> &lits, size_t *count);
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u32 absdiff(u32 i, u32 j);
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} // namespace ue2
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#endif
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