t/axmap.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <fcntl.h>
   4 #include <string.h>
   5 #include <unistd.h>
   6 #include <inttypes.h>
   7
   8 #include "../mutex.h"
   9 #include "../lib/lfsr.h"
  10 #include "../lib/axmap.h"
  11
  12 void *smalloc(size_t size)
  13 {
  14         return malloc(size);
  15 }
  16
  17 void sfree(void *ptr)
  18 {
  19         free(ptr);
  20 }
  21
  22 static int test_regular(size_t size, int seed)
  23 {
  24         struct fio_lfsr lfsr;
  25         struct axmap *map;
  26         size_t osize;
  27         uint64_t ff;
  28         int err;
  29
  30         printf("Using %llu entries...", (unsigned long long) size);
  31         fflush(stdout);
  32
  33         lfsr_init(&lfsr, size, seed, seed & 0xF);
  34         map = axmap_new(size);
  35         osize = size;
  36         err = 0;
  37
  38         while (size--) {
  39                 uint64_t val;
  40
  41                 if (lfsr_next(&lfsr, &val)) {
  42                         printf("lfsr: short loop\n");
  43                         err = 1;
  44                         break;
  45                 }
  46                 if (axmap_isset(map, val)) {
  47                         printf("bit already set\n");
  48                         err = 1;
  49                         break;
  50                 }
  51                 axmap_set(map, val);
  52                 if (!axmap_isset(map, val)) {
  53                         printf("bit not set\n");
  54                         err = 1;
  55                         break;
  56                 }
  57         }
  58
  59         if (err)
  60                 return err;
  61
  62         ff = axmap_next_free(map, osize);
  63         if (ff != (uint64_t) -1ULL) {
  64                 printf("axmap_next_free broken: got %llu\n", (unsigned long long) ff);
  65                 return 1;
  66         }
  67
  68         printf("pass!\n");
  69         axmap_free(map);
  70         return 0;
  71 }
  72
  73 static int test_multi(size_t size, unsigned int bit_off)
  74 {
  75         unsigned int map_size = size;
  76         struct axmap *map;
  77         uint64_t val = bit_off;
  78         int i, err;
  79
  80         printf("Test multi %llu entries %u offset...", (unsigned long long) size, bit_off);
  81         fflush(stdout);
  82
  83         map = axmap_new(map_size);
  84         while (val + 128 <= map_size) {
  85                 err = 0;
  86                 for (i = val; i < val + 128; i++) {
  87                         if (axmap_isset(map, val + i)) {
  88                                 printf("bit already set\n");
  89                                 err = 1;
  90                                 break;
  91                         }
  92                 }
  93
  94                 if (err)
  95                         break;
  96
  97                 err = axmap_set_nr(map, val, 128);
  98                 if (err != 128) {
  99                         printf("only set %u bits\n", err);
 100                         break;
 101                 }
 102
 103                 err = 0;
 104                 for (i = 0; i < 128; i++) {
 105                         if (!axmap_isset(map, val + i)) {
 106                                 printf("bit not set: %llu\n", (unsigned long long) val + i);
 107                                 err = 1;
 108                                 break;
 109                         }
 110                 }
 111
 112                 val += 128;
 113                 if (err)
 114                         break;
 115         }
 116
 117         if (!err)
 118                 printf("pass!\n");
 119
 120         axmap_free(map);
 121         return err;
 122 }
 123
 124 int main(int argc, char *argv[])
 125 {
 126         size_t size = (1UL << 23) - 200;
 127         int seed = 1;
 128
 129         if (argc > 1) {
 130                 size = strtoul(argv[1], NULL, 10);
 131                 if (argc > 2)
 132                         seed = strtoul(argv[2], NULL, 10);
 133         }
 134
 135         if (test_regular(size, seed))
 136                 return 1;
 137         if (test_multi(size, 0))
 138                 return 2;
 139         if (test_multi(size, 17))
 140                 return 3;
 141
 142         return 0;
 143 }