memory/jemalloc/src/test/bitmap.c@6474c204b198 (annotated)
memory/jemalloc/src/test/bitmap.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | #define JEMALLOC_MANGLE |
| michael@0 | 2 | #include "jemalloc_test.h" |
| michael@0 | 3 | |
| michael@0 | 4 | #if (LG_BITMAP_MAXBITS > 12) |
| michael@0 | 5 | # define MAXBITS 4500 |
| michael@0 | 6 | #else |
| michael@0 | 7 | # define MAXBITS (1U << LG_BITMAP_MAXBITS) |
| michael@0 | 8 | #endif |
| michael@0 | 9 | |
| michael@0 | 10 | static void |
| michael@0 | 11 | test_bitmap_size(void) |
| michael@0 | 12 | { |
| michael@0 | 13 | size_t i, prev_size; |
| michael@0 | 14 | |
| michael@0 | 15 | prev_size = 0; |
| michael@0 | 16 | for (i = 1; i <= MAXBITS; i++) { |
| michael@0 | 17 | size_t size = bitmap_size(i); |
| michael@0 | 18 | assert(size >= prev_size); |
| michael@0 | 19 | prev_size = size; |
| michael@0 | 20 | } |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | static void |
| michael@0 | 24 | test_bitmap_init(void) |
| michael@0 | 25 | { |
| michael@0 | 26 | size_t i; |
| michael@0 | 27 | |
| michael@0 | 28 | for (i = 1; i <= MAXBITS; i++) { |
| michael@0 | 29 | bitmap_info_t binfo; |
| michael@0 | 30 | bitmap_info_init(&binfo, i); |
| michael@0 | 31 | { |
| michael@0 | 32 | size_t j; |
| michael@0 | 33 | bitmap_t *bitmap = malloc(sizeof(bitmap_t) * |
| michael@0 | 34 | bitmap_info_ngroups(&binfo)); |
| michael@0 | 35 | bitmap_init(bitmap, &binfo); |
| michael@0 | 36 | |
| michael@0 | 37 | for (j = 0; j < i; j++) |
| michael@0 | 38 | assert(bitmap_get(bitmap, &binfo, j) == false); |
| michael@0 | 39 | free(bitmap); |
| michael@0 | 40 | |
| michael@0 | 41 | } |
| michael@0 | 42 | } |
| michael@0 | 43 | } |
| michael@0 | 44 | |
| michael@0 | 45 | static void |
| michael@0 | 46 | test_bitmap_set(void) |
| michael@0 | 47 | { |
| michael@0 | 48 | size_t i; |
| michael@0 | 49 | |
| michael@0 | 50 | for (i = 1; i <= MAXBITS; i++) { |
| michael@0 | 51 | bitmap_info_t binfo; |
| michael@0 | 52 | bitmap_info_init(&binfo, i); |
| michael@0 | 53 | { |
| michael@0 | 54 | size_t j; |
| michael@0 | 55 | bitmap_t *bitmap = malloc(sizeof(bitmap_t) * |
| michael@0 | 56 | bitmap_info_ngroups(&binfo)); |
| michael@0 | 57 | bitmap_init(bitmap, &binfo); |
| michael@0 | 58 | |
| michael@0 | 59 | for (j = 0; j < i; j++) |
| michael@0 | 60 | bitmap_set(bitmap, &binfo, j); |
| michael@0 | 61 | assert(bitmap_full(bitmap, &binfo)); |
| michael@0 | 62 | free(bitmap); |
| michael@0 | 63 | } |
| michael@0 | 64 | } |
| michael@0 | 65 | } |
| michael@0 | 66 | |
| michael@0 | 67 | static void |
| michael@0 | 68 | test_bitmap_unset(void) |
| michael@0 | 69 | { |
| michael@0 | 70 | size_t i; |
| michael@0 | 71 | |
| michael@0 | 72 | for (i = 1; i <= MAXBITS; i++) { |
| michael@0 | 73 | bitmap_info_t binfo; |
| michael@0 | 74 | bitmap_info_init(&binfo, i); |
| michael@0 | 75 | { |
| michael@0 | 76 | size_t j; |
| michael@0 | 77 | bitmap_t *bitmap = malloc(sizeof(bitmap_t) * |
| michael@0 | 78 | bitmap_info_ngroups(&binfo)); |
| michael@0 | 79 | bitmap_init(bitmap, &binfo); |
| michael@0 | 80 | |
| michael@0 | 81 | for (j = 0; j < i; j++) |
| michael@0 | 82 | bitmap_set(bitmap, &binfo, j); |
| michael@0 | 83 | assert(bitmap_full(bitmap, &binfo)); |
| michael@0 | 84 | for (j = 0; j < i; j++) |
| michael@0 | 85 | bitmap_unset(bitmap, &binfo, j); |
| michael@0 | 86 | for (j = 0; j < i; j++) |
| michael@0 | 87 | bitmap_set(bitmap, &binfo, j); |
| michael@0 | 88 | assert(bitmap_full(bitmap, &binfo)); |
| michael@0 | 89 | free(bitmap); |
| michael@0 | 90 | } |
| michael@0 | 91 | } |
| michael@0 | 92 | } |
| michael@0 | 93 | |
| michael@0 | 94 | static void |
| michael@0 | 95 | test_bitmap_sfu(void) |
| michael@0 | 96 | { |
| michael@0 | 97 | size_t i; |
| michael@0 | 98 | |
| michael@0 | 99 | for (i = 1; i <= MAXBITS; i++) { |
| michael@0 | 100 | bitmap_info_t binfo; |
| michael@0 | 101 | bitmap_info_init(&binfo, i); |
| michael@0 | 102 | { |
| michael@0 | 103 | ssize_t j; |
| michael@0 | 104 | bitmap_t *bitmap = malloc(sizeof(bitmap_t) * |
| michael@0 | 105 | bitmap_info_ngroups(&binfo)); |
| michael@0 | 106 | bitmap_init(bitmap, &binfo); |
| michael@0 | 107 | |
| michael@0 | 108 | /* Iteratively set bits starting at the beginning. */ |
| michael@0 | 109 | for (j = 0; j < i; j++) |
| michael@0 | 110 | assert(bitmap_sfu(bitmap, &binfo) == j); |
| michael@0 | 111 | assert(bitmap_full(bitmap, &binfo)); |
| michael@0 | 112 | |
| michael@0 | 113 | /* |
| michael@0 | 114 | * Iteratively unset bits starting at the end, and |
| michael@0 | 115 | * verify that bitmap_sfu() reaches the unset bits. |
| michael@0 | 116 | */ |
| michael@0 | 117 | for (j = i - 1; j >= 0; j--) { |
| michael@0 | 118 | bitmap_unset(bitmap, &binfo, j); |
| michael@0 | 119 | assert(bitmap_sfu(bitmap, &binfo) == j); |
| michael@0 | 120 | bitmap_unset(bitmap, &binfo, j); |
| michael@0 | 121 | } |
| michael@0 | 122 | assert(bitmap_get(bitmap, &binfo, 0) == false); |
| michael@0 | 123 | |
| michael@0 | 124 | /* |
| michael@0 | 125 | * Iteratively set bits starting at the beginning, and |
| michael@0 | 126 | * verify that bitmap_sfu() looks past them. |
| michael@0 | 127 | */ |
| michael@0 | 128 | for (j = 1; j < i; j++) { |
| michael@0 | 129 | bitmap_set(bitmap, &binfo, j - 1); |
| michael@0 | 130 | assert(bitmap_sfu(bitmap, &binfo) == j); |
| michael@0 | 131 | bitmap_unset(bitmap, &binfo, j); |
| michael@0 | 132 | } |
| michael@0 | 133 | assert(bitmap_sfu(bitmap, &binfo) == i - 1); |
| michael@0 | 134 | assert(bitmap_full(bitmap, &binfo)); |
| michael@0 | 135 | free(bitmap); |
| michael@0 | 136 | } |
| michael@0 | 137 | } |
| michael@0 | 138 | } |
| michael@0 | 139 | |
| michael@0 | 140 | int |
| michael@0 | 141 | main(void) |
| michael@0 | 142 | { |
| michael@0 | 143 | malloc_printf("Test begin\n"); |
| michael@0 | 144 | |
| michael@0 | 145 | test_bitmap_size(); |
| michael@0 | 146 | test_bitmap_init(); |
| michael@0 | 147 | test_bitmap_set(); |
| michael@0 | 148 | test_bitmap_unset(); |
| michael@0 | 149 | test_bitmap_sfu(); |
| michael@0 | 150 | |
| michael@0 | 151 | malloc_printf("Test end\n"); |
| michael@0 | 152 | return (0); |
| michael@0 | 153 | } |
