test-wildmatch.c

   1 #ifdef USE_WILDMATCH
   2 #undef USE_WILDMATCH  /* We need real fnmatch implementation here */
   3 #endif
   4 #include "cache.h"
   5 #include "wildmatch.h"
   6
   7 static int perf(int ac, char **av)
   8 {
   9         struct timeval tv1, tv2;
  10         struct stat st;
  11         int fd, i, n, flags1 = 0, flags2 = 0;
  12         char *buffer, *p;
  13         uint32_t usec1, usec2;
  14         const char *lang;
  15         const char *file = av[0];
  16         const char *pattern = av[1];
  17
  18         lang = getenv("LANG");
  19         if (lang && strcmp(lang, "C"))
  20                 die("Please test it on C locale.");
  21
  22         if ((fd = open(file, O_RDONLY)) == -1 || fstat(fd, &st))
  23                 die_errno("file open");
  24
  25         buffer = xmalloc(st.st_size + 2);
  26         if (read(fd, buffer, st.st_size) != st.st_size)
  27                 die_errno("read");
  28
  29         buffer[st.st_size] = '\0';
  30         buffer[st.st_size + 1] = '\0';
  31         for (i = 0; i < st.st_size; i++)
  32                 if (buffer[i] == '\n')
  33                         buffer[i] = '\0';
  34
  35         n = atoi(av[2]);
  36         if (av[3] && !strcmp(av[3], "pathname")) {
  37                 flags1 = WM_PATHNAME;
  38                 flags2 = FNM_PATHNAME;
  39         }
  40
  41         gettimeofday(&tv1, NULL);
  42         for (i = 0; i < n; i++) {
  43                 for (p = buffer; *p; p += strlen(p) + 1)
  44                         wildmatch(pattern, p, flags1, NULL);
  45         }
  46         gettimeofday(&tv2, NULL);
  47
  48         usec1 = (uint32_t)tv2.tv_sec * 1000000 + tv2.tv_usec;
  49         usec1 -= (uint32_t)tv1.tv_sec * 1000000 + tv1.tv_usec;
  50         printf("wildmatch %ds %dus\n",
  51                (int)(usec1 / 1000000),
  52                (int)(usec1 % 1000000));
  53
  54         gettimeofday(&tv1, NULL);
  55         for (i = 0; i < n; i++) {
  56                 for (p = buffer; *p; p += strlen(p) + 1)
  57                         fnmatch(pattern, p, flags2);
  58         }
  59         gettimeofday(&tv2, NULL);
  60
  61         usec2 = (uint32_t)tv2.tv_sec * 1000000 + tv2.tv_usec;
  62         usec2 -= (uint32_t)tv1.tv_sec * 1000000 + tv1.tv_usec;
  63         if (usec2 > usec1)
  64                 printf("fnmatch   %ds %dus or %.2f%% slower\n",
  65                        (int)((usec2 - usec1) / 1000000),
  66                        (int)((usec2 - usec1) % 1000000),
  67                        (float)(usec2 - usec1) / usec1 * 100);
  68         else
  69                 printf("fnmatch   %ds %dus or %.2f%% faster\n",
  70                        (int)((usec1 - usec2) / 1000000),
  71                        (int)((usec1 - usec2) % 1000000),
  72                        (float)(usec1 - usec2) / usec1 * 100);
  73         return 0;
  74 }
  75
  76 int main(int argc, char **argv)
  77 {
  78         int i;
  79
  80         if (!strcmp(argv[1], "perf"))
  81                 return perf(argc - 2, argv + 2);
  82
  83         for (i = 2; i < argc; i++) {
  84                 if (argv[i][0] == '/')
  85                         die("Forward slash is not allowed at the beginning of the\n"
  86                             "pattern because Windows does not like it. Use `XXX/' instead.");
  87                 else if (!strncmp(argv[i], "XXX/", 4))
  88                         argv[i] += 3;
  89         }
  90         if (!strcmp(argv[1], "wildmatch"))
  91                 return !!wildmatch(argv[3], argv[2], WM_PATHNAME, NULL);
  92         else if (!strcmp(argv[1], "iwildmatch"))
  93                 return !!wildmatch(argv[3], argv[2], WM_PATHNAME | WM_CASEFOLD, NULL);
  94         else if (!strcmp(argv[1], "pathmatch"))
  95                 return !!wildmatch(argv[3], argv[2], 0, NULL);
  96         else if (!strcmp(argv[1], "fnmatch"))
  97                 return !!fnmatch(argv[3], argv[2], FNM_PATHNAME);
  98         else
  99                 return 1;
 100 }