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77 lines
3.2 KiB
C
77 lines
3.2 KiB
C
/*
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* Copyright (c) 2015, 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 Runtime context structures (NFAContext128 and friends) for the NFA.
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*/
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#ifndef LIMEX_CONTEXT_H
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#define LIMEX_CONTEXT_H
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#include "ue2common.h"
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#include "callback.h"
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#include "util/simd_utils.h" // for m128 etc
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// Runtime context structures.
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/* cached_estate/esucc etc...
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*
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* If the exception state matches the cached_estate we will apply
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* the or in the cached_esucc to the successor states rather than processing
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* the exceptions.
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*
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* If the current exception state is a superset of the cached_estate, the
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* cache is NOT used at all.
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*
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* The cache is updated when we see a different cacheable estate.
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*/
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#define GEN_CONTEXT_STRUCT(nsize, ntype) \
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struct ALIGN_CL_DIRECTIVE NFAContext##nsize { \
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ntype s; /**< state bitvector (on entry/exit) */ \
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ntype local_succ; /**< used by exception handling for large models */ \
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ntype cached_estate; /* inited to 0 */ \
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ntype cached_esucc; \
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char cached_br; /**< cached_estate contains a br state */ \
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const ReportID *cached_reports; \
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union RepeatControl *repeat_ctrl; \
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char *repeat_state; \
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NfaCallback callback; \
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void *context; \
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};
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GEN_CONTEXT_STRUCT(32, u32)
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GEN_CONTEXT_STRUCT(128, m128)
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GEN_CONTEXT_STRUCT(256, m256)
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GEN_CONTEXT_STRUCT(384, m384)
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GEN_CONTEXT_STRUCT(512, m512)
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#undef GEN_CONTEXT_STRUCT
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#endif
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