Function wait_for_the_fd

test/bthread_fd_unittest.cpp:487–495

}

void* wait_for_the_fd(void* arg) {
    timespec ts = butil::milliseconds_from_now(50);
#if defined(OS_LINUX)
    bthread_fd_timedwait(*(int*)arg, EPOLLIN, &ts);
#elif defined(OS_MACOSX)
    bthread_fd_timedwait(*(int*)arg, EVFILT_READ, &ts);
#endif
    return NULL;
}

TEST(FDTest, timeout) {
    int fds[2];