зеркало из https://github.com/microsoft/git.git
101 строка
2.7 KiB
C
101 строка
2.7 KiB
C
#ifdef USE_WILDMATCH
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#undef USE_WILDMATCH /* We need real fnmatch implementation here */
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#endif
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#include "cache.h"
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#include "wildmatch.h"
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static int perf(int ac, char **av)
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{
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struct timeval tv1, tv2;
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struct stat st;
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int fd, i, n, flags1 = 0, flags2 = 0;
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char *buffer, *p;
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uint32_t usec1, usec2;
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const char *lang;
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const char *file = av[0];
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const char *pattern = av[1];
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lang = getenv("LANG");
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if (lang && strcmp(lang, "C"))
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die("Please test it on C locale.");
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if ((fd = open(file, O_RDONLY)) == -1 || fstat(fd, &st))
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die_errno("file open");
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buffer = xmalloc(st.st_size + 2);
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if (read(fd, buffer, st.st_size) != st.st_size)
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die_errno("read");
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buffer[st.st_size] = '\0';
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buffer[st.st_size + 1] = '\0';
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for (i = 0; i < st.st_size; i++)
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if (buffer[i] == '\n')
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buffer[i] = '\0';
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n = atoi(av[2]);
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if (av[3] && !strcmp(av[3], "pathname")) {
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flags1 = WM_PATHNAME;
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flags2 = FNM_PATHNAME;
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}
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gettimeofday(&tv1, NULL);
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for (i = 0; i < n; i++) {
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for (p = buffer; *p; p += strlen(p) + 1)
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wildmatch(pattern, p, flags1, NULL);
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}
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gettimeofday(&tv2, NULL);
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usec1 = (uint32_t)tv2.tv_sec * 1000000 + tv2.tv_usec;
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usec1 -= (uint32_t)tv1.tv_sec * 1000000 + tv1.tv_usec;
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printf("wildmatch %ds %dus\n",
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(int)(usec1 / 1000000),
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(int)(usec1 % 1000000));
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gettimeofday(&tv1, NULL);
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for (i = 0; i < n; i++) {
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for (p = buffer; *p; p += strlen(p) + 1)
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fnmatch(pattern, p, flags2);
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}
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gettimeofday(&tv2, NULL);
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usec2 = (uint32_t)tv2.tv_sec * 1000000 + tv2.tv_usec;
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usec2 -= (uint32_t)tv1.tv_sec * 1000000 + tv1.tv_usec;
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if (usec2 > usec1)
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printf("fnmatch %ds %dus or %.2f%% slower\n",
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(int)((usec2 - usec1) / 1000000),
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(int)((usec2 - usec1) % 1000000),
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(float)(usec2 - usec1) / usec1 * 100);
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else
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printf("fnmatch %ds %dus or %.2f%% faster\n",
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(int)((usec1 - usec2) / 1000000),
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(int)((usec1 - usec2) % 1000000),
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(float)(usec1 - usec2) / usec1 * 100);
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return 0;
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}
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int main(int argc, char **argv)
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{
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int i;
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if (!strcmp(argv[1], "perf"))
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return perf(argc - 2, argv + 2);
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for (i = 2; i < argc; i++) {
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if (argv[i][0] == '/')
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die("Forward slash is not allowed at the beginning of the\n"
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"pattern because Windows does not like it. Use `XXX/' instead.");
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else if (!strncmp(argv[i], "XXX/", 4))
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argv[i] += 3;
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}
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if (!strcmp(argv[1], "wildmatch"))
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return !!wildmatch(argv[3], argv[2], WM_PATHNAME, NULL);
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else if (!strcmp(argv[1], "iwildmatch"))
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return !!wildmatch(argv[3], argv[2], WM_PATHNAME | WM_CASEFOLD, NULL);
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else if (!strcmp(argv[1], "pathmatch"))
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return !!wildmatch(argv[3], argv[2], 0, NULL);
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else if (!strcmp(argv[1], "fnmatch"))
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return !!fnmatch(argv[3], argv[2], FNM_PATHNAME);
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else
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return 1;
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}
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