1 | /* |
2 | * Copyright (c) 2015-2017, 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 FDR_COMPILE_INTERNAL_H |
30 | #define FDR_COMPILE_INTERNAL_H |
31 | |
32 | #include "ue2common.h" |
33 | #include "hwlm/hwlm_literal.h" |
34 | #include "util/bytecode_ptr.h" |
35 | |
36 | #include <map> |
37 | #include <utility> |
38 | #include <vector> |
39 | |
40 | struct FDRConfirm; |
41 | struct LitInfo; |
42 | |
43 | namespace ue2 { |
44 | |
45 | // a pile of decorative typedefs |
46 | // good for documentation purposes more than anything else |
47 | typedef u32 LiteralIndex; |
48 | typedef u32 SuffixPositionInString; // zero is last byte, counting back |
49 | // into the string |
50 | typedef u32 BucketIndex; |
51 | typedef u32 SchemeBitIndex; |
52 | typedef u32 PositionInBucket; // zero is 'we are matching right now!", |
53 | // counting towards future matches |
54 | |
55 | class EngineDescription; |
56 | class FDREngineDescription; |
57 | struct hwlmStreamingControl; |
58 | struct Grey; |
59 | |
60 | bytecode_ptr<u8> setupFullConfs( |
61 | const std::vector<hwlmLiteral> &lits, |
62 | const EngineDescription &eng, |
63 | const std::map<BucketIndex, std::vector<LiteralIndex>> &bucketToLits, |
64 | bool make_small); |
65 | |
66 | // all suffixes include an implicit max_bucket_width suffix to ensure that |
67 | // we always read a full-scale flood "behind" us in terms of what's in our |
68 | // state; if we don't have a flood that's long enough we won't be in the |
69 | // right state yet to allow blindly advancing |
70 | bytecode_ptr<u8> setupFDRFloodControl(const std::vector<hwlmLiteral> &lits, |
71 | const EngineDescription &eng, |
72 | const Grey &grey); |
73 | |
74 | bytecode_ptr<u8> |
75 | fdrBuildTableStreaming(const std::vector<hwlmLiteral> &lits, |
76 | hwlmStreamingControl &stream_control); |
77 | |
78 | static constexpr u32 HINT_INVALID = 0xffffffff; |
79 | |
80 | // fdr_compile_util.cpp utilities |
81 | size_t maxLen(const std::vector<hwlmLiteral> &lits); |
82 | size_t minLenCount(const std::vector<hwlmLiteral> &lits, size_t *count); |
83 | u32 absdiff(u32 i, u32 j); |
84 | |
85 | } // namespace ue2 |
86 | |
87 | #endif |
88 | |