src/test-stringpool.c

   1 /*
   2         libloc - A library to determine the location of someone on the Internet
   3
   4         Copyright (C) 2017 IPFire Development Team <info@ipfire.org>
   5
   6         This program is free software; you can redistribute it and/or modify
   7         it under the terms of the GNU General Public License as published by
   8         the Free Software Foundation; either version 2 of the License, or
   9         (at your option) any later version.
  10
  11         This program is distributed in the hope that it will be useful,
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14         GNU General Public License for more details.
  15 */
  16
  17 #include <stdio.h>
  18 #include <stddef.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include <fcntl.h>
  22 #include <ctype.h>
  23 #include <errno.h>
  24 #include <unistd.h>
  25 #include <time.h>
  26
  27 #include <loc/libloc.h>
  28 #include <loc/stringpool.h>
  29
  30 static const char* characters = "012345789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
  31
  32 static char* random_string(size_t size) {
  33         char* string = malloc(size + 1);
  34
  35         char* p = string;
  36         for (unsigned int i = 0; i < size; i++) {
  37                 *p++ = characters[rand() % strlen(characters)];
  38         }
  39         *p = '\0';
  40
  41         return string;
  42 }
  43
  44 int main(int argc, char** argv) {
  45         // Initialize the RNG
  46         time_t now = time(NULL);
  47         srand(now);
  48
  49         int err;
  50
  51         struct loc_ctx* ctx;
  52         err = loc_new(&ctx);
  53         if (err < 0)
  54                 exit(EXIT_FAILURE);
  55
  56         // Create the stringpool
  57         struct loc_stringpool* pool;
  58         err = loc_stringpool_new(ctx, &pool);
  59         if (err < 0)
  60                 exit(EXIT_FAILURE);
  61
  62         // Try reading some invalid string
  63         const char* s = loc_stringpool_get(pool, 100);
  64         if (s != NULL) {
  65                 fprintf(stderr, "An unexpected string was returned: %s\n", s);
  66                 exit(EXIT_FAILURE);
  67         }
  68
  69         // Append a string
  70         off_t pos = loc_stringpool_add(pool, "ABC");
  71         if (pos < 0) {
  72                 fprintf(stderr, "Could not add string: %s\n", strerror(-pos));
  73                 exit(EXIT_FAILURE);
  74         }
  75
  76         printf("Added string at %jd\n", pos);
  77
  78         // Must start at first byte
  79         if (pos != 0) {
  80                 fprintf(stderr, "First string didn't start at the first byte\n");
  81                 exit(EXIT_FAILURE);
  82         }
  83
  84         // Append the same string again
  85         pos = loc_stringpool_add(pool, "ABC");
  86         if (pos != 0) {
  87                 fprintf(stderr, "Same string was added at a different position again\n");
  88                 exit(EXIT_FAILURE);
  89         }
  90
  91         // Append another string
  92         pos = loc_stringpool_add(pool, "DEF");
  93         if (pos == 0) {
  94                 fprintf(stderr, "Second string was added at the first address\n");
  95                 exit(EXIT_FAILURE);
  96         }
  97
  98         // Add 10000 random strings
  99         for (unsigned int i = 0; i < 10000; i++) {
 100                 char* string = random_string(3);
 101
 102                 pos = loc_stringpool_add(pool, string);
 103                 free(string);
 104
 105                 if (pos < 0) {
 106                         fprintf(stderr, "Could not add string %d: %s\n", i, strerror(-pos));
 107                         exit(EXIT_FAILURE);
 108                 }
 109         }
 110
 111         // Dump pool
 112         loc_stringpool_dump(pool);
 113
 114         loc_stringpool_unref(pool);
 115         loc_unref(ctx);
 116
 117         return EXIT_SUCCESS;
 118 }