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/*
* Copyright (c) 2015-2016, 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 Runtime context structures (NFAContext128 and friends) for the NFA.
*/
#ifndef LIMEX_CONTEXT_H
#define LIMEX_CONTEXT_H
#include "ue2common.h"
#include "callback.h"
#include "util/simd_utils.h" // for m128 etc
// Runtime context structures.
/* Note: The size of the context structures may vary from platform to platform
* (notably, for the Limex64 structure). As a result, information based on the
* size and other detail of these structures should not be written into the
* bytecode -- really, the details of the structure should not be accessed by
* the ue2 compile side at all.
*/
#ifdef __cplusplus
#error ue2 runtime only file
#endif
/* cached_estate/esucc etc...
*
* If the exception state matches the cached_estate we will apply
* the or in the cached_esucc to the successor states rather than processing
* the exceptions.
*
* If the current exception state is a superset of the cached_estate, the
* cache is NOT used at all.
*
* The cache is updated when we see a different cacheable estate.
*/
#define GEN_CONTEXT_STRUCT(nsize, ntype) \
struct ALIGN_CL_DIRECTIVE NFAContext##nsize { \
ntype s; /**< state bitvector (on entry/exit) */ \
ntype local_succ; /**< used by exception handling for large models */ \
ntype cached_estate; /* inited to 0 */ \
ntype cached_esucc; \
char cached_br; /**< cached_estate contains a br state */ \
const ReportID *cached_reports; \
union RepeatControl *repeat_ctrl; \
char *repeat_state; \
NfaCallback callback; \
void *context; \
};
GEN_CONTEXT_STRUCT(32, u32)
#ifdef ARCH_64_BIT
GEN_CONTEXT_STRUCT(64, u64a)
#else
GEN_CONTEXT_STRUCT(64, m128)
#endif
GEN_CONTEXT_STRUCT(128, m128)
GEN_CONTEXT_STRUCT(256, m256)
GEN_CONTEXT_STRUCT(384, m384)
GEN_CONTEXT_STRUCT(512, m512)
#undef GEN_CONTEXT_STRUCT
#endif
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