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9087d59be5
Add the new Tamarama engine that acts as a container for infix/suffix engines that can be proven to run exclusively of one another. This reduces stream state for pattern sets with many exclusive engines.
106 lines
3.6 KiB
C
106 lines
3.6 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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/** \file
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*\brief Tamarama: container engine for exclusive engines,
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* data structures.
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*/
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/* Tamarama bytecode layout:
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* * |-----|
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* * | | struct NFA
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* * |-----|
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* * | | struct Tamarama
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* * | |
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* * |-----|
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* * | | top remapping table:
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* * | | stores top base for each subengine.
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* * | | old_top = remapped_top - top_base;
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* * | | The size of table is equal to the number of subengines.
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* * ...
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* * | |
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* * |-----|
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* * | | offsets from the start of struct Tamarama to subengines --\
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* * ... |
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* * | | -----------\ |
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* * |-----| | |
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* * ||--| | subengine 1 (struct NFA + rest of subengine) <--/ |
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* * || | | |
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* * ||--| | |
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* * || | | |
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* * || | | |
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* * ||--| | |
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* * | | |
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* * ||--| | subengine 2 (struct NFA + rest of subengine) <-------/
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* * || | |
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* * ||--| |
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* * || | |
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* * || | |
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* * ||--| |
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* * | |
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* * ...
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* * | |
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* * |-----| total size of tamarama
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* *
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* * Tamarama stream state:
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* *
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* * |---|
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* * | | active subengine id
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* * |---|
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* * | | common pool of stream state for each engine
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* * | |
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* * | |
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* * ...
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* * | |
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* * | |
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* * |---|
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* *
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* * Tamarama scratch space:
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* *
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* * |---|
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* * | | common pool of scratch for each engine
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* * | |
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* * | |
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* * ...
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* * | |
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* * | |
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* * |---|
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* */
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#ifndef NFA_TAMARAMA_INTERNAL_H
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#define NFA_TAMARAMA_INTERNAL_H
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#include "ue2common.h"
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struct ALIGN_AVX_DIRECTIVE Tamarama {
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u32 numSubEngines;
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u8 activeIdxSize;
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};
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#endif // NFA_TAMARAMA_INTERNAL_H
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