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/*
* Copyright (c) 2015, 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 Hamster Wheel Literal Matcher: data structures.
*/
#ifndef HWLM_INTERNAL_H
#define HWLM_INTERNAL_H
#include "hwlm.h"
#include "ue2common.h"
#include "nfa/accel.h"
/** \brief Underlying engine is FDR. */
#define HWLM_ENGINE_FDR 12
/** \brief Underlying engine is Noodle. */
#define HWLM_ENGINE_NOOD 16
/** \brief Main Hamster Wheel Literal Matcher header. Followed by
* engine-specific structure. */
struct HWLM {
u8 type; /**< HWLM_ENGINE_NOOD or HWLM_ENGINE_FDR */
hwlm_group_t accel1_groups; /**< accelerable groups. */
union AccelAux accel1; /**< used if group mask is subset of accel1_groups */
union AccelAux accel0; /**< fallback accel scheme */
};
/** \brief Fetch a const pointer to the underlying engine. */
#define HWLM_C_DATA(p) ((const void *)((const char *)(p) \
+ ROUNDUP_CL(sizeof(struct HWLM))))
/** \brief Fetch a pointer to the underlying engine. */
#define HWLM_DATA(p) ((void *)((char *)(p) + ROUNDUP_CL(sizeof(struct HWLM))))
#endif
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