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Commit | Line | Data |
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54a0048b SL |
1 | #include "test/jemalloc_test.h" |
2 | ||
3 | static size_t | |
4 | get_max_size_class(void) | |
5 | { | |
6 | unsigned nhchunks; | |
7 | size_t mib[4]; | |
8 | size_t sz, miblen, max_size_class; | |
9 | ||
10 | sz = sizeof(unsigned); | |
3b2f2976 XL |
11 | assert_d_eq(mallctl("arenas.nhchunks", (void *)&nhchunks, &sz, NULL, 0), |
12 | 0, "Unexpected mallctl() error"); | |
54a0048b SL |
13 | |
14 | miblen = sizeof(mib) / sizeof(size_t); | |
15 | assert_d_eq(mallctlnametomib("arenas.hchunk.0.size", mib, &miblen), 0, | |
16 | "Unexpected mallctlnametomib() error"); | |
17 | mib[2] = nhchunks - 1; | |
18 | ||
19 | sz = sizeof(size_t); | |
3b2f2976 XL |
20 | assert_d_eq(mallctlbymib(mib, miblen, (void *)&max_size_class, &sz, |
21 | NULL, 0), 0, "Unexpected mallctlbymib() error"); | |
54a0048b SL |
22 | |
23 | return (max_size_class); | |
24 | } | |
25 | ||
26 | TEST_BEGIN(test_size_classes) | |
27 | { | |
28 | size_t size_class, max_size_class; | |
29 | szind_t index, max_index; | |
30 | ||
31 | max_size_class = get_max_size_class(); | |
32 | max_index = size2index(max_size_class); | |
33 | ||
34 | for (index = 0, size_class = index2size(index); index < max_index || | |
35 | size_class < max_size_class; index++, size_class = | |
36 | index2size(index)) { | |
37 | assert_true(index < max_index, | |
38 | "Loop conditionals should be equivalent; index=%u, " | |
39 | "size_class=%zu (%#zx)", index, size_class, size_class); | |
40 | assert_true(size_class < max_size_class, | |
41 | "Loop conditionals should be equivalent; index=%u, " | |
42 | "size_class=%zu (%#zx)", index, size_class, size_class); | |
43 | ||
44 | assert_u_eq(index, size2index(size_class), | |
45 | "size2index() does not reverse index2size(): index=%u -->" | |
46 | " size_class=%zu --> index=%u --> size_class=%zu", index, | |
47 | size_class, size2index(size_class), | |
48 | index2size(size2index(size_class))); | |
49 | assert_zu_eq(size_class, index2size(size2index(size_class)), | |
50 | "index2size() does not reverse size2index(): index=%u -->" | |
51 | " size_class=%zu --> index=%u --> size_class=%zu", index, | |
52 | size_class, size2index(size_class), | |
53 | index2size(size2index(size_class))); | |
54 | ||
55 | assert_u_eq(index+1, size2index(size_class+1), | |
56 | "Next size_class does not round up properly"); | |
57 | ||
58 | assert_zu_eq(size_class, (index > 0) ? | |
59 | s2u(index2size(index-1)+1) : s2u(1), | |
60 | "s2u() does not round up to size class"); | |
61 | assert_zu_eq(size_class, s2u(size_class-1), | |
62 | "s2u() does not round up to size class"); | |
63 | assert_zu_eq(size_class, s2u(size_class), | |
64 | "s2u() does not compute same size class"); | |
65 | assert_zu_eq(s2u(size_class+1), index2size(index+1), | |
66 | "s2u() does not round up to next size class"); | |
67 | } | |
68 | ||
69 | assert_u_eq(index, size2index(index2size(index)), | |
70 | "size2index() does not reverse index2size()"); | |
71 | assert_zu_eq(max_size_class, index2size(size2index(max_size_class)), | |
72 | "index2size() does not reverse size2index()"); | |
73 | ||
74 | assert_zu_eq(size_class, s2u(index2size(index-1)+1), | |
75 | "s2u() does not round up to size class"); | |
76 | assert_zu_eq(size_class, s2u(size_class-1), | |
77 | "s2u() does not round up to size class"); | |
78 | assert_zu_eq(size_class, s2u(size_class), | |
79 | "s2u() does not compute same size class"); | |
80 | } | |
81 | TEST_END | |
82 | ||
3b2f2976 XL |
83 | TEST_BEGIN(test_psize_classes) |
84 | { | |
85 | size_t size_class, max_size_class; | |
86 | pszind_t pind, max_pind; | |
87 | ||
88 | max_size_class = get_max_size_class(); | |
89 | max_pind = psz2ind(max_size_class); | |
90 | ||
91 | for (pind = 0, size_class = pind2sz(pind); pind < max_pind || | |
92 | size_class < max_size_class; pind++, size_class = | |
93 | pind2sz(pind)) { | |
94 | assert_true(pind < max_pind, | |
95 | "Loop conditionals should be equivalent; pind=%u, " | |
96 | "size_class=%zu (%#zx)", pind, size_class, size_class); | |
97 | assert_true(size_class < max_size_class, | |
98 | "Loop conditionals should be equivalent; pind=%u, " | |
99 | "size_class=%zu (%#zx)", pind, size_class, size_class); | |
100 | ||
101 | assert_u_eq(pind, psz2ind(size_class), | |
102 | "psz2ind() does not reverse pind2sz(): pind=%u -->" | |
103 | " size_class=%zu --> pind=%u --> size_class=%zu", pind, | |
104 | size_class, psz2ind(size_class), | |
105 | pind2sz(psz2ind(size_class))); | |
106 | assert_zu_eq(size_class, pind2sz(psz2ind(size_class)), | |
107 | "pind2sz() does not reverse psz2ind(): pind=%u -->" | |
108 | " size_class=%zu --> pind=%u --> size_class=%zu", pind, | |
109 | size_class, psz2ind(size_class), | |
110 | pind2sz(psz2ind(size_class))); | |
111 | ||
112 | assert_u_eq(pind+1, psz2ind(size_class+1), | |
113 | "Next size_class does not round up properly"); | |
114 | ||
115 | assert_zu_eq(size_class, (pind > 0) ? | |
116 | psz2u(pind2sz(pind-1)+1) : psz2u(1), | |
117 | "psz2u() does not round up to size class"); | |
118 | assert_zu_eq(size_class, psz2u(size_class-1), | |
119 | "psz2u() does not round up to size class"); | |
120 | assert_zu_eq(size_class, psz2u(size_class), | |
121 | "psz2u() does not compute same size class"); | |
122 | assert_zu_eq(psz2u(size_class+1), pind2sz(pind+1), | |
123 | "psz2u() does not round up to next size class"); | |
124 | } | |
125 | ||
126 | assert_u_eq(pind, psz2ind(pind2sz(pind)), | |
127 | "psz2ind() does not reverse pind2sz()"); | |
128 | assert_zu_eq(max_size_class, pind2sz(psz2ind(max_size_class)), | |
129 | "pind2sz() does not reverse psz2ind()"); | |
130 | ||
131 | assert_zu_eq(size_class, psz2u(pind2sz(pind-1)+1), | |
132 | "psz2u() does not round up to size class"); | |
133 | assert_zu_eq(size_class, psz2u(size_class-1), | |
134 | "psz2u() does not round up to size class"); | |
135 | assert_zu_eq(size_class, psz2u(size_class), | |
136 | "psz2u() does not compute same size class"); | |
137 | } | |
138 | TEST_END | |
139 | ||
54a0048b SL |
140 | TEST_BEGIN(test_overflow) |
141 | { | |
142 | size_t max_size_class; | |
143 | ||
144 | max_size_class = get_max_size_class(); | |
145 | ||
3b2f2976 XL |
146 | assert_u_eq(size2index(max_size_class+1), NSIZES, |
147 | "size2index() should return NSIZES on overflow"); | |
148 | assert_u_eq(size2index(ZU(PTRDIFF_MAX)+1), NSIZES, | |
149 | "size2index() should return NSIZES on overflow"); | |
150 | assert_u_eq(size2index(SIZE_T_MAX), NSIZES, | |
151 | "size2index() should return NSIZES on overflow"); | |
152 | ||
153 | assert_zu_eq(s2u(max_size_class+1), 0, | |
154 | "s2u() should return 0 for unsupported size"); | |
155 | assert_zu_eq(s2u(ZU(PTRDIFF_MAX)+1), 0, | |
156 | "s2u() should return 0 for unsupported size"); | |
54a0048b SL |
157 | assert_zu_eq(s2u(SIZE_T_MAX), 0, |
158 | "s2u() should return 0 on overflow"); | |
3b2f2976 XL |
159 | |
160 | assert_u_eq(psz2ind(max_size_class+1), NPSIZES, | |
161 | "psz2ind() should return NPSIZES on overflow"); | |
162 | assert_u_eq(psz2ind(ZU(PTRDIFF_MAX)+1), NPSIZES, | |
163 | "psz2ind() should return NPSIZES on overflow"); | |
164 | assert_u_eq(psz2ind(SIZE_T_MAX), NPSIZES, | |
165 | "psz2ind() should return NPSIZES on overflow"); | |
166 | ||
167 | assert_zu_eq(psz2u(max_size_class+1), 0, | |
168 | "psz2u() should return 0 for unsupported size"); | |
169 | assert_zu_eq(psz2u(ZU(PTRDIFF_MAX)+1), 0, | |
170 | "psz2u() should return 0 for unsupported size"); | |
171 | assert_zu_eq(psz2u(SIZE_T_MAX), 0, | |
172 | "psz2u() should return 0 on overflow"); | |
54a0048b SL |
173 | } |
174 | TEST_END | |
175 | ||
176 | int | |
177 | main(void) | |
178 | { | |
179 | ||
180 | return (test( | |
181 | test_size_classes, | |
3b2f2976 | 182 | test_psize_classes, |
54a0048b SL |
183 | test_overflow)); |
184 | } |