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tamarama: add container engine for exclusive nfas

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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.
This commit is contained in:
Xiang Wang
2015-08-11 05:23:12 -04:00
committed by Matthew Barr
parent 013dbd3b3c
commit 9087d59be5
38 changed files with 2418 additions and 56 deletions
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105
src/nfa/tamarama_internal.h Normal file
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/*
* Copyright (c) 2016, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/** \file
*\brief Tamarama: container engine for exclusive engines,
* data structures.
*/
/* Tamarama bytecode layout:
* * |-----|
* * | | struct NFA
* * |-----|
* * | | struct Tamarama
* * | |
* * |-----|
* * | | top remapping table:
* * | | stores top base for each subengine.
* * | | old_top = remapped_top - top_base;
* * | | The size of table is equal to the number of subengines.
* * ...
* * | |
* * |-----|
* * | | offsets from the start of struct Tamarama to subengines --\
* * ... |
* * | | -----------\ |
* * |-----| | |
* * ||--| | subengine 1 (struct NFA + rest of subengine) <--/ |
* * || | | |
* * ||--| | |
* * || | | |
* * || | | |
* * ||--| | |
* * | | |
* * ||--| | subengine 2 (struct NFA + rest of subengine) <-------/
* * || | |
* * ||--| |
* * || | |
* * || | |
* * ||--| |
* * | |
* * ...
* * | |
* * |-----| total size of tamarama
* *
* * Tamarama stream state:
* *
* * |---|
* * | | active subengine id
* * |---|
* * | | common pool of stream state for each engine
* * | |
* * | |
* * ...
* * | |
* * | |
* * |---|
* *
* * Tamarama scratch space:
* *
* * |---|
* * | | common pool of scratch for each engine
* * | |
* * | |
* * ...
* * | |
* * | |
* * |---|
* */
#ifndef NFA_TAMARAMA_INTERNAL_H
#define NFA_TAMARAMA_INTERNAL_H
#include "ue2common.h"
struct ALIGN_AVX_DIRECTIVE Tamarama {
u32 numSubEngines;
u8 activeIdxSize;
};
#endif // NFA_TAMARAMA_INTERNAL_H