1/*
2 * Copyright (c) 2015-2018, Intel Corporation
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * * Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Intel Corporation nor the names of its contributors
13 * may be used to endorse or promote products derived from this software
14 * without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef ACCEL_DFA_BUILD_STRAT_H
30#define ACCEL_DFA_BUILD_STRAT_H
31
32#include "rdfa.h"
33#include "dfa_build_strat.h"
34#include "ue2common.h"
35#include "util/accel_scheme.h"
36
37#include <map>
38
39namespace ue2 {
40
41class ReportManager;
42struct Grey;
43enum DfaType {
44 McClellan,
45 Sheng,
46 Gough
47};
48
49class accel_dfa_build_strat : public dfa_build_strat {
50public:
51 accel_dfa_build_strat(const ReportManager &rm_in, bool only_accel_init_in)
52 : dfa_build_strat(rm_in), only_accel_init(only_accel_init_in) {}
53 virtual AccelScheme find_escape_strings(dstate_id_t this_idx) const;
54 virtual size_t accelSize(void) const = 0;
55 virtual u32 max_allowed_offset_accel() const = 0;
56 virtual u32 max_stop_char() const = 0;
57 virtual u32 max_floating_stop_char() const = 0;
58 virtual void buildAccel(dstate_id_t this_idx, const AccelScheme &info,
59 void *accel_out);
60 virtual std::map<dstate_id_t, AccelScheme> getAccelInfo(const Grey &grey);
61 virtual DfaType getType() const = 0;
62
63private:
64 bool only_accel_init;
65};
66
67} // namespace ue2
68
69#endif // ACCEL_DFA_BUILD_STRAT_H
70