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1 | // |
2 | // Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com) | |
3 | // | |
4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | // | |
7 | // Official repository: https://github.com/boostorg/beast | |
8 | // | |
9 | ||
10 | #include <boost/beast/websocket/detail/utf8_checker.hpp> | |
11 | #include <boost/beast/unit_test/suite.hpp> | |
12 | #include <chrono> | |
13 | #include <random> | |
14 | ||
15 | #ifndef BEAST_USE_BOOST_LOCALE_BENCHMARK | |
16 | #define BEAST_USE_BOOST_LOCALE_BENCHMARK 0 | |
17 | #endif | |
18 | ||
19 | #if BEAST_USE_BOOST_LOCALE_BENCHMARK | |
20 | #include <boost/locale.hpp> | |
21 | #endif | |
22 | ||
23 | namespace boost { | |
24 | namespace beast { | |
25 | ||
26 | class utf8_checker_test : public beast::unit_test::suite | |
27 | { | |
28 | std::mt19937 rng_; | |
29 | ||
30 | public: | |
31 | using size_type = std::uint64_t; | |
32 | ||
33 | class timer | |
34 | { | |
35 | public: | |
36 | using clock_type = | |
37 | std::chrono::system_clock; | |
38 | ||
39 | private: | |
40 | clock_type::time_point when_; | |
41 | ||
42 | public: | |
43 | using duration = | |
44 | clock_type::duration; | |
45 | ||
46 | timer() | |
47 | : when_(clock_type::now()) | |
48 | { | |
49 | } | |
50 | ||
51 | duration | |
52 | elapsed() const | |
53 | { | |
54 | return clock_type::now() - when_; | |
55 | } | |
56 | }; | |
57 | ||
58 | template<class UInt = std::size_t> | |
59 | UInt | |
60 | rand(std::size_t n) | |
61 | { | |
62 | return static_cast<UInt>( | |
63 | std::uniform_int_distribution< | |
64 | std::size_t>{0, n-1}(rng_)); | |
65 | } | |
66 | ||
67 | static | |
68 | inline | |
69 | size_type | |
70 | throughput(std::chrono::duration< | |
71 | double> const& elapsed, size_type items) | |
72 | { | |
73 | using namespace std::chrono; | |
74 | return static_cast<size_type>( | |
75 | 1 / (elapsed/items).count()); | |
76 | } | |
77 | ||
78 | std::string | |
79 | corpus(std::size_t n) | |
80 | { | |
81 | std::string s; | |
82 | s.reserve(n); | |
83 | while(n--) | |
84 | s.push_back(static_cast<char>( | |
85 | ' ' + rand(95))); | |
86 | return s; | |
87 | } | |
88 | ||
89 | void | |
90 | checkBeast(std::string const& s) | |
91 | { | |
92 | beast::websocket::detail::check_utf8( | |
93 | s.data(), s.size()); | |
94 | } | |
95 | ||
96 | #if BEAST_USE_BOOST_LOCALE_BENCHMARK | |
97 | void | |
98 | checkLocale(std::string const& s) | |
99 | { | |
100 | using namespace boost::locale; | |
101 | auto p = s.begin(); | |
102 | auto const e = s.end(); | |
103 | while(p != e) | |
104 | { | |
105 | auto cp = utf::utf_traits<char>::decode(p, e); | |
106 | if(cp == utf::illegal) | |
107 | break; | |
108 | } | |
109 | } | |
110 | #endif | |
111 | ||
112 | template<class F> | |
113 | typename timer::clock_type::duration | |
114 | test(F const& f) | |
115 | { | |
116 | timer t; | |
117 | f(); | |
118 | return t.elapsed(); | |
119 | } | |
120 | ||
121 | void | |
122 | run() override | |
123 | { | |
124 | auto const s = corpus(32 * 1024 * 1024); | |
125 | for(int i = 0; i < 5; ++ i) | |
126 | { | |
127 | auto const elapsed = test([&]{ | |
128 | checkBeast(s); | |
129 | checkBeast(s); | |
130 | checkBeast(s); | |
131 | checkBeast(s); | |
132 | checkBeast(s); | |
133 | }); | |
134 | log << "beast: " << throughput(elapsed, s.size()) << " char/s" << std::endl; | |
135 | } | |
136 | #if BEAST_USE_BOOST_LOCALE_BENCHMARK | |
137 | for(int i = 0; i < 5; ++ i) | |
138 | { | |
139 | auto const elapsed = test([&]{ | |
140 | checkLocale(s); | |
141 | checkLocale(s); | |
142 | checkLocale(s); | |
143 | checkLocale(s); | |
144 | checkLocale(s); | |
145 | }); | |
146 | log << "locale: " << throughput(elapsed, s.size()) << " char/s" << std::endl; | |
147 | } | |
148 | #endif | |
149 | pass(); | |
150 | } | |
151 | }; | |
152 | ||
153 | BEAST_DEFINE_TESTSUITE(beast,benchmarks,utf8_checker); | |
154 | ||
155 | } // beast | |
156 | } // boost | |
157 |