c++ - 温索克 RIO : RIOReceive returns immediately with no bytesTransferred

Question

我在让 winsock RIO 工作时遇到了问题。似乎每次我发布 RIOReceive 时，它​​都会立即返回并传输 0 个字节，而我的对等方无法通过消息。

发布 RIOReceive 后，我等待 RIODequeCompletion，它会立即以 numResults = 1 进行双端排队，但是当我检查 RIORESULT 结构的 bytesTransferred 时，它是 0。这告诉我我没有正确设置它，但我找不到可以告诉我还应该做什么的文档或示例。

互联网上关于 RIO 的信息似乎很少。我已经看过 MSDN , Len Holgate with TheServerFramework 、本网站和两台 GitHub RIO 服务器。

RIOEchoServer 和 RIOServer_sm9 在 GitHub 上，但我不能发布超过两个链接(这是我在这个网站上的第一个问题)。

这段代码只是为了证明事情。目前未设置为使用 sendCQ，不能很好地处理错误等...

准备工作如下:

void serverRequestThread() {

//init buffers 

//register big buffers
recvBufferMain = rio.RIORegisterBuffer(pRecvBufferMain, bufferSize);
sendBufferMain = rio.RIORegisterBuffer(pSendBufferMain, bufferSize);

if (recvBufferMain == RIO_INVALID_BUFFERID) {
    cout << "RIO_INVALID_BUFFERID" << endl;
}

if (sendBufferMain == RIO_INVALID_BUFFERID) {
    cout << "RIO_INVALID_BUFFERID" << endl;
}

//create recv buffer slice
recvBuffer1.BufferId = recvBufferMain;
recvBuffer1.Offset = 0;
recvBuffer1.Length = 10000;

//create send buffer slice
sendBuffer1.BufferId = sendBufferMain;
sendBuffer1.Offset = 0;
sendBuffer1.Length = 10000;

//completion queue
recvCQ = rio.RIOCreateCompletionQueue(CQsize, NULL);
sendCQ = rio.RIOCreateCompletionQueue(CQsize, NULL);

if (recvCQ == RIO_INVALID_CQ) {
    cout << "RIO_INVALID_CQ" << endl;
}

if (sendCQ == RIO_INVALID_CQ) {
    cout << "RIO_INVALID_CQ" << endl;
}

//start a loop for newly accept'd socket
while (recvCQ != RIO_INVALID_CQ && sendCQ != RIO_INVALID_CQ) {

    //get accept'd socket
    struct sockaddr_in saClient;
    int iClientSize = sizeof(saClient);
    acceptSocket = accept(listenSocket, (SOCKADDR*)&saClient, &iClientSize);

    if (acceptSocket == INVALID_SOCKET) {
        cout << "Invalid socket" << endl;
        printError();
    }

    //register request queue
    requestQueue = rio.RIOCreateRequestQueue(
        acceptSocket,       //socket
        10,                 //max RECVs on queue
        1,                  //max recv buffers, set to 1
        10,                 //max outstanding sends
        1,                  //max send buffers, set to 1
        recvCQ,             //recv queue
        recvCQ,             //send queue
        pOperationContext   //socket context
        );

    if (requestQueue == RIO_INVALID_RQ) {
        cout << "RIO_INVALID_RQ" << endl;
        printError();
    }

我现在发布一个 RIOReceive:

    //start a loop to repin recv buffer for socket
    while (acceptSocket != INVALID_SOCKET) {

        //pin a recv buffer to wait on data
        recvSuccess = rio.RIOReceive(
            requestQueue,           //socketQueue
            &recvBuffer1,           //buffer slice
            1,                      //set to 1
            RIO_MSG_WAITALL,                        //flags
            0);                     //requestContext

        if (recvSuccess == false) {
            cout << "RECV ERROR!!!!!!!!\n";
            printError();
        }

        //wait for recv to post in queue

        //std::this_thread::sleep_for(std::chrono::milliseconds(3000));

我一调用 RIODequeCompletion，它就返回 1:

        numResults = 0;
        while (numResults == 0) numResults = rio.RIODequeueCompletion(recvCQ, recvArray, 10);

        if (numResults == RIO_CORRUPT_CQ) {

            cout << "RIO_CORRUPT_CQ" << endl;

        } else if (numResults == 0) {

            cout << "no messages on queue\n";

        } else if (numResults > 0) {

但是当我检查 RIORESULT 的 bytesTransferred 时，它始终为 0:

            if (recvArray[0].BytesTransferred > 0) {

                //process results
                if (pRecvBufferMain[0] == 'G') {

                    //set respnose html
                    strcpy(pSendBufferMain, responseHTTP);

                    sendSuccess = rio.RIOSend(
                        requestQueue,   //socketQueue
                        &sendBuffer1,   //buffer slice
                        1,              //set to 1
                        0,              //flags
                        0);             //requestContext

                } else if (pRecvBufferMain[0] == 'P') {

                    //process post 


                } else {
                    //recv'd a bad message

                }

            } //end bytesTransferred if statement

            //reset everything and post another recv

        }//end response if statement

        std::this_thread::sleep_for(std::chrono::milliseconds(100));

    }//end while loop for recv'ing

    std::this_thread::sleep_for(std::chrono::milliseconds(100));

}//end while loop for accept'ing

}// end function

就像我说的，我可能没有正确使用 RIOReceive，和/或我没有设置我需要的正确套接字选项(现在没有)。

我很感激任何帮助。

Answer 1

尝试删除 RIO_MSG_WAITALL。可能存在一个错误，您只能收到关闭通知(字节 == 0)而不是完成其中的数据。无论哪种方式，看看代码是否可以在没有标志的情况下工作都会很有趣。

我的示例服务器和测试是否可以在您的硬件上运行？