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1 | // Copyright (c) 2011 Helge Bahmann |
2 | // | |
3 | // Distributed under the Boost Software License, Version 1.0. | |
4 | // See accompanying file LICENSE_1_0.txt or copy at | |
5 | // http://www.boost.org/LICENSE_1_0.txt) | |
6 | ||
7 | // Verify that definition of the "LOCK_FREE" macros and the | |
8 | // "is_lock_free" members is consistent and matches expectations. | |
9 | // Also, if any operation is lock-free, then the platform | |
10 | // implementation must provide overridden fence implementations. | |
11 | ||
12 | #include <boost/atomic.hpp> | |
13 | ||
14 | #include <iostream> | |
15 | #include <boost/config.hpp> | |
16 | #include <boost/core/lightweight_test.hpp> | |
17 | ||
18 | static const char * lock_free_level[] = { | |
19 | "never", | |
20 | "sometimes", | |
21 | "always" | |
22 | }; | |
23 | ||
24 | template<typename T> | |
25 | void | |
26 | verify_lock_free(const char * type_name, int lock_free_macro_val, int lock_free_expect) | |
27 | { | |
28 | BOOST_TEST(lock_free_macro_val >= 0 && lock_free_macro_val <= 2); | |
29 | BOOST_TEST(lock_free_macro_val == lock_free_expect); | |
30 | ||
31 | boost::atomic<T> value; | |
32 | ||
33 | if (lock_free_macro_val == 0) | |
34 | BOOST_TEST(!value.is_lock_free()); | |
35 | if (lock_free_macro_val == 2) | |
36 | BOOST_TEST(value.is_lock_free()); | |
37 | ||
38 | BOOST_TEST(boost::atomic<T>::is_always_lock_free == (lock_free_expect == 2)); | |
39 | ||
40 | std::cout << "atomic<" << type_name << "> is " << lock_free_level[lock_free_macro_val] << " lock free\n"; | |
41 | } | |
42 | ||
43 | #if (defined(__GNUC__) || defined(__SUNPRO_CC)) && defined(__i386__) | |
44 | ||
45 | #define EXPECT_CHAR_LOCK_FREE 2 | |
46 | #define EXPECT_SHORT_LOCK_FREE 2 | |
47 | #define EXPECT_INT_LOCK_FREE 2 | |
48 | #define EXPECT_LONG_LOCK_FREE 2 | |
49 | #if defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B) | |
50 | #define EXPECT_LLONG_LOCK_FREE 2 | |
51 | #else | |
52 | #define EXPECT_LLONG_LOCK_FREE 0 | |
53 | #endif | |
54 | #define EXPECT_INT128_LOCK_FREE 0 | |
55 | #define EXPECT_POINTER_LOCK_FREE 2 | |
56 | #define EXPECT_BOOL_LOCK_FREE 2 | |
57 | ||
58 | #elif (defined(__GNUC__) || defined(__SUNPRO_CC)) && defined(__x86_64__) | |
59 | ||
60 | #define EXPECT_CHAR_LOCK_FREE 2 | |
61 | #define EXPECT_SHORT_LOCK_FREE 2 | |
62 | #define EXPECT_INT_LOCK_FREE 2 | |
63 | #define EXPECT_LONG_LOCK_FREE 2 | |
64 | #define EXPECT_LLONG_LOCK_FREE 2 | |
65 | #if defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B) && (defined(BOOST_HAS_INT128) || !defined(BOOST_NO_ALIGNMENT)) | |
66 | #define EXPECT_INT128_LOCK_FREE 2 | |
67 | #else | |
68 | #define EXPECT_INT128_LOCK_FREE 0 | |
69 | #endif | |
70 | #define EXPECT_POINTER_LOCK_FREE 2 | |
71 | #define EXPECT_BOOL_LOCK_FREE 2 | |
72 | ||
73 | #elif defined(__GNUC__) && (defined(__POWERPC__) || defined(__PPC__)) | |
74 | ||
75 | #define EXPECT_CHAR_LOCK_FREE 2 | |
76 | #define EXPECT_CHAR16_T_LOCK_FREE 2 | |
77 | #define EXPECT_CHAR32_T_LOCK_FREE 2 | |
78 | #define EXPECT_WCHAR_T_LOCK_FREE 2 | |
79 | #define EXPECT_SHORT_LOCK_FREE 2 | |
80 | #define EXPECT_INT_LOCK_FREE 2 | |
81 | #define EXPECT_LONG_LOCK_FREE 2 | |
82 | #if defined(__powerpc64__) | |
83 | #define EXPECT_LLONG_LOCK_FREE 2 | |
84 | #else | |
85 | #define EXPECT_LLONG_LOCK_FREE 0 | |
86 | #endif | |
87 | #define EXPECT_INT128_LOCK_FREE 0 | |
88 | #define EXPECT_POINTER_LOCK_FREE 2 | |
89 | #define EXPECT_BOOL_LOCK_FREE 2 | |
90 | ||
91 | #elif defined(__GNUC__) && defined(__alpha__) | |
92 | ||
93 | #define EXPECT_CHAR_LOCK_FREE 2 | |
94 | #define EXPECT_CHAR16_T_LOCK_FREE 2 | |
95 | #define EXPECT_CHAR32_T_LOCK_FREE 2 | |
96 | #define EXPECT_WCHAR_T_LOCK_FREE 2 | |
97 | #define EXPECT_SHORT_LOCK_FREE 2 | |
98 | #define EXPECT_INT_LOCK_FREE 2 | |
99 | #define EXPECT_LONG_LOCK_FREE 2 | |
100 | #define EXPECT_LLONG_LOCK_FREE 2 | |
101 | #define EXPECT_INT128_LOCK_FREE 0 | |
102 | #define EXPECT_POINTER_LOCK_FREE 2 | |
103 | #define EXPECT_BOOL_LOCK_FREE 2 | |
104 | ||
105 | #elif defined(__GNUC__) &&\ | |
106 | (\ | |
107 | defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) ||\ | |
108 | defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) ||\ | |
109 | defined(__ARM_ARCH_6ZK__) ||\ | |
110 | defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) ||\ | |
111 | defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) ||\ | |
112 | defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__)\ | |
113 | ) | |
114 | ||
115 | #define EXPECT_CHAR_LOCK_FREE 2 | |
116 | #define EXPECT_SHORT_LOCK_FREE 2 | |
117 | #define EXPECT_INT_LOCK_FREE 2 | |
118 | #define EXPECT_LONG_LOCK_FREE 2 | |
119 | #if !(defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6Z__)\ | |
120 | || ((defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)) && defined(__thumb__)) || defined(__ARM_ARCH_7M__)) | |
121 | #define EXPECT_LLONG_LOCK_FREE 2 | |
122 | #else | |
123 | #define EXPECT_LLONG_LOCK_FREE 0 | |
124 | #endif | |
125 | #define EXPECT_INT128_LOCK_FREE 0 | |
126 | #define EXPECT_POINTER_LOCK_FREE 2 | |
127 | #define EXPECT_BOOL_LOCK_FREE 2 | |
128 | ||
129 | #elif defined(__linux__) && defined(__arm__) | |
130 | ||
131 | #define EXPECT_CHAR_LOCK_FREE 2 | |
132 | #define EXPECT_SHORT_LOCK_FREE 2 | |
133 | #define EXPECT_INT_LOCK_FREE 2 | |
134 | #define EXPECT_LONG_LOCK_FREE 2 | |
135 | #define EXPECT_LLONG_LOCK_FREE 0 | |
136 | #define EXPECT_INT128_LOCK_FREE 0 | |
137 | #define EXPECT_POINTER_LOCK_FREE 2 | |
138 | #define EXPECT_BOOL_LOCK_FREE 2 | |
139 | ||
140 | #elif (defined(__GNUC__) || defined(__SUNPRO_CC)) && (defined(__sparcv8plus) || defined(__sparc_v9__)) | |
141 | ||
142 | #define EXPECT_CHAR_LOCK_FREE 2 | |
143 | #define EXPECT_SHORT_LOCK_FREE 2 | |
144 | #define EXPECT_INT_LOCK_FREE 2 | |
145 | #define EXPECT_LONG_LOCK_FREE 2 | |
146 | #define EXPECT_LLONG_LOCK_FREE 2 | |
147 | #define EXPECT_INT128_LOCK_FREE 0 | |
148 | #define EXPECT_POINTER_LOCK_FREE 2 | |
149 | #define EXPECT_BOOL_LOCK_FREE 2 | |
150 | ||
151 | #elif defined(BOOST_USE_WINDOWS_H) || defined(_WIN32_CE) || defined(BOOST_MSVC) || defined(BOOST_INTEL_WIN) || defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) | |
152 | ||
153 | #define EXPECT_CHAR_LOCK_FREE 2 | |
154 | #define EXPECT_SHORT_LOCK_FREE 2 | |
155 | #define EXPECT_INT_LOCK_FREE 2 | |
156 | #define EXPECT_LONG_LOCK_FREE 2 | |
b32b8144 | 157 | #if defined(_WIN64) || defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B) || defined(_M_AMD64) || defined(_M_IA64) || (_MSC_VER >= 1700 && (defined(_M_ARM) || defined(_M_ARM64))) |
7c673cae FG |
158 | #define EXPECT_LLONG_LOCK_FREE 2 |
159 | #else | |
160 | #define EXPECT_LLONG_LOCK_FREE 0 | |
161 | #endif | |
162 | #define EXPECT_INT128_LOCK_FREE 0 | |
163 | #define EXPECT_POINTER_LOCK_FREE 2 | |
164 | #define EXPECT_BOOL_LOCK_FREE 2 | |
165 | ||
166 | #else | |
167 | ||
168 | #define EXPECT_CHAR_LOCK_FREE 0 | |
169 | #define EXPECT_SHORT_LOCK_FREE 0 | |
170 | #define EXPECT_INT_LOCK_FREE 0 | |
171 | #define EXPECT_LONG_LOCK_FREE 0 | |
172 | #define EXPECT_LLONG_LOCK_FREE 0 | |
173 | #define EXPECT_INT128_LOCK_FREE 0 | |
174 | #define EXPECT_POINTER_LOCK_FREE 0 | |
175 | #define EXPECT_BOOL_LOCK_FREE 0 | |
176 | ||
177 | #endif | |
178 | ||
179 | int main(int, char *[]) | |
180 | { | |
181 | verify_lock_free<char>("char", BOOST_ATOMIC_CHAR_LOCK_FREE, EXPECT_CHAR_LOCK_FREE); | |
182 | verify_lock_free<short>("short", BOOST_ATOMIC_SHORT_LOCK_FREE, EXPECT_SHORT_LOCK_FREE); | |
183 | verify_lock_free<int>("int", BOOST_ATOMIC_INT_LOCK_FREE, EXPECT_INT_LOCK_FREE); | |
184 | verify_lock_free<long>("long", BOOST_ATOMIC_LONG_LOCK_FREE, EXPECT_LONG_LOCK_FREE); | |
185 | #ifdef BOOST_HAS_LONG_LONG | |
186 | verify_lock_free<long long>("long long", BOOST_ATOMIC_LLONG_LOCK_FREE, EXPECT_LLONG_LOCK_FREE); | |
187 | #endif | |
188 | #ifdef BOOST_HAS_INT128 | |
189 | verify_lock_free<boost::int128_type>("int128", BOOST_ATOMIC_INT128_LOCK_FREE, EXPECT_INT128_LOCK_FREE); | |
190 | #endif | |
191 | verify_lock_free<void *>("void *", BOOST_ATOMIC_POINTER_LOCK_FREE, EXPECT_SHORT_LOCK_FREE); | |
192 | verify_lock_free<bool>("bool", BOOST_ATOMIC_BOOL_LOCK_FREE, EXPECT_BOOL_LOCK_FREE); | |
193 | ||
11fdf7f2 TL |
194 | #ifndef BOOST_ATOMIC_NO_FLOATING_POINT |
195 | ||
196 | verify_lock_free<float>("float", BOOST_ATOMIC_FLOAT_LOCK_FREE, | |
197 | sizeof(float) == 1 ? EXPECT_CHAR_LOCK_FREE : (sizeof(float) == 2 ? EXPECT_SHORT_LOCK_FREE : | |
198 | (sizeof(float) <= 4 ? EXPECT_INT_LOCK_FREE : (sizeof(float) <= 8 ? EXPECT_LLONG_LOCK_FREE : (sizeof(float) <= 16 ? EXPECT_INT128_LOCK_FREE : 0))))); | |
199 | ||
200 | verify_lock_free<double>("double", BOOST_ATOMIC_DOUBLE_LOCK_FREE, | |
201 | sizeof(double) == 1 ? EXPECT_CHAR_LOCK_FREE : (sizeof(double) == 2 ? EXPECT_SHORT_LOCK_FREE : | |
202 | (sizeof(double) <= 4 ? EXPECT_INT_LOCK_FREE : (sizeof(double) <= 8 ? EXPECT_LLONG_LOCK_FREE : (sizeof(double) <= 16 ? EXPECT_INT128_LOCK_FREE : 0))))); | |
203 | ||
204 | verify_lock_free<long double>("long double", BOOST_ATOMIC_LONG_DOUBLE_LOCK_FREE, | |
205 | sizeof(long double) == 1 ? EXPECT_CHAR_LOCK_FREE : (sizeof(long double) == 2 ? EXPECT_SHORT_LOCK_FREE : | |
206 | (sizeof(long double) <= 4 ? EXPECT_INT_LOCK_FREE : (sizeof(long double) <= 8 ? EXPECT_LLONG_LOCK_FREE : (sizeof(long double) <= 16 ? EXPECT_INT128_LOCK_FREE : 0))))); | |
207 | ||
208 | #ifdef BOOST_HAS_FLOAT128 | |
209 | verify_lock_free<boost::float128_type>("float128", BOOST_ATOMIC_INT128_LOCK_FREE, EXPECT_INT128_LOCK_FREE); | |
210 | #endif | |
211 | ||
212 | #endif // BOOST_ATOMIC_NO_FLOATING_POINT | |
213 | ||
7c673cae FG |
214 | bool any_lock_free = |
215 | BOOST_ATOMIC_CHAR_LOCK_FREE > 0 || | |
216 | BOOST_ATOMIC_SHORT_LOCK_FREE > 0 || | |
217 | BOOST_ATOMIC_INT_LOCK_FREE > 0 || | |
218 | BOOST_ATOMIC_LONG_LOCK_FREE > 0 || | |
219 | BOOST_ATOMIC_LLONG_LOCK_FREE > 0 || | |
220 | BOOST_ATOMIC_BOOL_LOCK_FREE > 0; | |
221 | ||
222 | BOOST_TEST(!any_lock_free || BOOST_ATOMIC_THREAD_FENCE > 0); | |
223 | ||
224 | return boost::report_errors(); | |
225 | } |