发送有效套接字后出现WSAENOTSOCK错误

Question

好的，我正在使用WinSockets2创建一个非常简单的服务器-客户端应用程序。我已经初始化了套接字，并且正在尝试允许服务器是多用户的。到目前为止，我几乎100%确定服务器套接字的格式是正确的，并且我100%确定客户端套接字是正确的，因为我在另一台服务器上使用了它。尽管如此，recv函数还是会失败，并返回错误WSAENOTSOCK。有问题的代码：

unsigned __stdcall client(void *data) {
    SOCKET clientSocket = (SOCKET)data;

    char inBuffer[DEFAULT_BUFLEN];

    int inBytes = SOCKET_ERROR;

    ZeroMemory(inBuffer, sizeof(inBuffer)); //make sure the buffer is 0

    inBytes = recv(clientSocket, inBuffer, sizeof(inBuffer), 0);
    printf("Client said: %s and there's this also %d\n", inBuffer, inBytes);

    if (inBytes == SOCKET_ERROR) {
        printf("eek! Something went wrong! %ld\n", WSAGetLastError());
    }
    return 0;
}

再往下一点...

    bool serverOn = true;
    while (clientSocket = accept(listenSocket, NULL, NULL) && serverOn) {
        //http://stackoverflow.com/questions/15185380/tcp-winsock-accept-multiple-connections-clients
        unsigned threadID;
        HANDLE hThread = (HANDLE)_beginthreadex(NULL, 0, &client, (void*)clientSocket, 0, &threadID);
    }

    if (iResult = shutdown(clientSocket, SD_SEND) == SOCKET_ERROR) { //clean up and end everything
        printf("shutdown failed: %d\n", WSAGetLastError());
        closesocket(clientSocket);
        WSACleanup();
        return 1;
    }

    closesocket(clientSocket);
    WSACleanup();

    return 0;
}

如果需要任何其他代码，请联系我们。谢谢!

Answer 1

好的，经过反复试验，我找到了答案。在此代码块中：

 bool serverOn = true;
    while (clientSocket = accept(listenSocket, NULL, NULL) && serverOn) {
        //http://stackoverflow.com/questions/15185380/tcp-winsock-accept-multiple-connections-clients
        unsigned threadID;
        HANDLE hThread = (HANDLE)_beginthreadex(NULL, 0, &client, (void*)clientSocket, 0, &threadID);
    }

    if (iResult = shutdown(clientSocket, SD_SEND) == SOCKET_ERROR) { //clean up and end everything
        printf("shutdown failed: %d\n", WSAGetLastError());
        closesocket(clientSocket);
        WSACleanup();
        return 1;
    }

    closesocket(clientSocket);
    WSACleanup();

    return 0;
}

行while (clientSocket = accept(listenSocket, NULL, NULL) && serverOn) {应该被分成两行，

while (serverOn) {
        clientSocket = accept(listenSocket, NULL, NULL);

我猜这与变量的作用域有关。编码快乐的家伙们！