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62 lines
2.5 KiB
C++
62 lines
2.5 KiB
C++
/*
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* Copyright (c) 2016, 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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#ifndef MCCLELLANCOMPILE_ACCEL_H
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#define MCCLELLANCOMPILE_ACCEL_H
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#include "mcclellancompile.h"
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#include <map>
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namespace ue2 {
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struct Grey;
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#define ACCEL_DFA_MAX_OFFSET_DEPTH 4
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/** Maximum tolerated number of escape character from an accel state.
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* This is larger than nfa, as we don't have a budget and the nfa cheats on stop
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* characters for sets of states */
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#define ACCEL_DFA_MAX_STOP_CHAR 160
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/** Maximum tolerated number of escape character from a sds accel state. Larger
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* than normal states as accelerating sds is important. Matches NFA value */
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#define ACCEL_DFA_MAX_FLOATING_STOP_CHAR 192
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std::map<dstate_id_t, escape_info> populateAccelerationInfo(const raw_dfa &rdfa,
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const dfa_build_strat &strat,
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const Grey &grey);
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escape_info find_mcclellan_escape_info(const raw_dfa &rdfa,
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dstate_id_t this_idx,
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u32 max_allowed_accel_offset);
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}
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#endif
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