将阻塞同步代码转换为异步

Question

这是阻塞代码，我如何将其转换为非阻塞异步？ 我正在尝试在客户端和服务器之间进行异步通信。 这是我的阻塞同步代码，我将如何异步执行？

bool S3W::CImplServerData::WaitForCompletion(unsigned int timeout)
{


    unsigned int t1;
    while (true)
    {
        BinaryMessageBuffer currBuff;
        if (m_Queue.try_pop(currBuff))
        {
            ProcessBuffer(currBuff);
             t1 = clock();
        }
        else
        {
            unsigned int  t2 = clock();

            if ((t2 - t1) > timeout)
            {
                return false;
            }
            else
            {
                Sleep(1);
            }
        }
    }

    return true;
}

Answer 1

将 while 循环移到函数本身之外：

bool S3W::CImplServerData::WaitForCompletion()
{
    BinaryMessageBuffer currBuff;
    if (m_Queue.try_pop(currBuff))
    {
        ProcessBuffer(currBuff);
        // do any processing needed here
    }

    // return values to tell the rest of the program what to do
}

你的主循环得到了 while 循环

while (true)
{
    bool outcome = S3W::CImplServerData::WaitForCompletion()

    // outcome tells the main program whether any communications
    // were received. handle any returned values here

    // handle stuff you do while waiting, e.g. check for input and update 
    // the graphics
}