Function thread_join

thread/thread.cpp:1530–1543

    }

    void* thread_join(join_handle* jh) {
        auto th = (thread*)jh;
        assert(th->is_joinable());
        if (!th->is_joinable())
            LOG_ERROR_RETURN(ENOSYS, nullptr, "join is not enabled for thread ", th);

        th->lock.lock();
        while (th->state != states::DONE) {
            th->cond.wait(th->lock);
        }
        auto retval = th->retval;
        th->dispose();
        return retval;
    }
    inline void thread_join(thread* th)
    {
        thread_join((join_handle*)th);