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86c5f7feb1
- Change the compile of literal matchers to two passes. - Reverse the bucket assignment in FDR, bucket with longer literals has smaller bucket id. - Squash the buckets of included literals and jump to the the program of included literals directly from parent literal program without going through FDR confirm for included iterals.
88 lines
3.4 KiB
C++
88 lines
3.4 KiB
C++
/*
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* Copyright (c) 2015-2017, 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/bytecode_ptr.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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struct Grey;
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bytecode_ptr<u8> setupFullConfs(
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const std::vector<hwlmLiteral> &lits,
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const EngineDescription &eng,
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const 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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bytecode_ptr<u8> setupFDRFloodControl(const std::vector<hwlmLiteral> &lits,
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const EngineDescription &eng,
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const Grey &grey);
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bytecode_ptr<u8>
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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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