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/*
* Copyright (c) 2015-2023, 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 Stream state data structures.
*/
#ifndef STATE_H
#define STATE_H
#include "hs_runtime.h" /* match_event_handler */
#include "ue2common.h"
#ifdef __cplusplus
extern "C"
{
#endif
struct RoseEngine;
/** \brief Stream context: allocated for each stream.
*
* struct hs_stream is followed in memory by the main Rose state: history,
* exhaustion, individual states, etc. The RoseEngine has the offsets required
* to correctly index into the main state structure. The offsets used by the
* RoseEngine are based on the end of the hs_stream struct as its size may
* vary from platform to platform.
*/
struct hs_stream {
/** \brief The RoseEngine that this stream is matching against. */
const struct RoseEngine *rose;
/** \brief The current stream offset. */
u64a offset;
};
#define getMultiState(hs_s) ((char *)(hs_s) + sizeof(*(hs_s)))
#define getMultiStateConst(hs_s) ((const char *)(hs_s) + sizeof(*(hs_s)))
#ifdef __cplusplus
}
#endif
#endif
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