1 | /* |
2 | * Copyright (c) 2015, 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 | /** \file |
30 | * \brief Build code for Haig SOM DFA. |
31 | */ |
32 | |
33 | #ifndef NG_HAIG_H |
34 | #define NG_HAIG_H |
35 | |
36 | #include "ue2common.h" |
37 | #include "som/som.h" |
38 | |
39 | #include <memory> |
40 | #include <vector> |
41 | |
42 | namespace ue2 { |
43 | |
44 | class CharReach; |
45 | class NGHolder; |
46 | struct Grey; |
47 | struct raw_som_dfa; |
48 | |
49 | #define HAIG_FINAL_DFA_STATE_LIMIT 16383 |
50 | #define HAIG_HARD_DFA_STATE_LIMIT 8192 |
51 | |
52 | /* unordered_som_triggers being true indicates that a live haig may be subjected |
53 | * to later tops arriving with earlier soms (without the haig going dead in |
54 | * between) |
55 | */ |
56 | |
57 | std::unique_ptr<raw_som_dfa> |
58 | attemptToBuildHaig(const NGHolder &g, som_type som, u32 somPrecision, |
59 | const std::vector<std::vector<CharReach>> &triggers, |
60 | const Grey &grey, bool unordered_som_triggers = false); |
61 | |
62 | std::unique_ptr<raw_som_dfa> |
63 | attemptToMergeHaig(const std::vector<const raw_som_dfa *> &dfas, |
64 | u32 limit = HAIG_HARD_DFA_STATE_LIMIT); |
65 | |
66 | } // namespace ue2 |
67 | |
68 | #endif |
69 | |