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34 lines
549 B
34 lines
549 B
6 years ago
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#include <litc.h>
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static char buf[512];
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int main(int argc, char **argv)
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{
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char *fn = "/bigfile.txt";
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int fd;
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if ((fd = open(fn, O_RDONLY, 0)) < 0)
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errx(-1, "open");
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int i;
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int ret;
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int blks = 1000;
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for (i = 0; i < blks; i++) {
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printf("read %d\n", i);
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size_t c = sizeof(buf);
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size_t e = c;
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if ((ret = read(fd, buf, c)) != e) {
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printf("read failed %d\n", ret);
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return -1;
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}
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int j;
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for (j = 0; j < sizeof(buf); j++)
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if (buf[j] != 'A')
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errx(-1, "mismatch!");
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}
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if (close(fd))
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errx(-1, "close");
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return 0;
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}
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