udev/cdrom: use random_u64() and usleep()
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56c1a2977b
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@ -1050,7 +1050,6 @@ static int parse_argv(int argc, char *argv[]) {
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int main(int argc, char *argv[]) {
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int fd = -1;
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int cnt;
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int rc = 0;
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int r;
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@ -1065,16 +1064,13 @@ int main(int argc, char *argv[]) {
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goto exit;
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}
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initialize_srand();
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for (cnt = 20; cnt > 0; cnt--) {
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struct timespec duration;
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for (int cnt = 0; cnt < 20; cnt++) {
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if (cnt != 0)
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(void) usleep(100 * USEC_PER_MSEC + random_u64() % (100 * USEC_PER_MSEC));
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fd = open(arg_node, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
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if (fd >= 0 || errno != EBUSY)
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break;
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duration.tv_sec = 0;
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duration.tv_nsec = (100 * 1000 * 1000) + (rand() % 100 * 1000 * 1000);
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nanosleep(&duration, NULL);
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}
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if (fd < 0) {
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log_debug("unable to open '%s'", arg_node);
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