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add new Literal API for pure literal expressions:

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Design compile time api hs_compile_lit() and hs_compile_lit_multi()
to handle pure literal pattern sets. Corresponding option --literal-on
is added for hyperscan testing suites. Extended parameters and part of
flags are not supported for this api.
This commit is contained in:
Hong, Yang A
2019-07-18 00:29:27 +08:00
committed by Chang, Harry
parent 8bfbf07f75
commit 23e5f06594
36 changed files with 745 additions and 116 deletions
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21
tools/hscollider/UltimateTruth.cpp
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015-2018, Intel Corporation
* Copyright (c) 2015-2019, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -925,11 +925,22 @@ compileHyperscan(vector<const char *> &patterns, vector<unsigned> &flags,
const unsigned count = patterns.size();
hs_database_t *db = nullptr;
hs_compile_error_t *compile_err;
hs_error_t err;
hs_error_t err = hs_compile_multi_int(&patterns[0], &flags[0],
&idsvec[0], ext.c_array(), count,
mode, platform, &db,
&compile_err, grey);
if (use_literal_api) {
// Compute length of each pattern.
vector<size_t> lens(count);
for (unsigned int i = 0; i < count; i++) {
lens[i] = strlen(patterns[i]);
}
err = hs_compile_lit_multi_int(&patterns[0], &flags[0], &idsvec[0],
ext.c_array(), &lens[0], count, mode,
platform, &db, &compile_err, grey);
} else {
err = hs_compile_multi_int(&patterns[0], &flags[0], &idsvec[0],
ext.c_array(), count, mode, platform, &db,
&compile_err, grey);
}
if (err != HS_SUCCESS) {
error = compile_err->message;