Question

环境：使用C / C ++（VS2008）的Windows Mobile Win32

我需要一种干净且 可靠的 方法，使用http将一些GPS坐标（或其他数据）更新到网络服务器。

目前我一直在使用以下代码：

wsprintf (threadParam.wszLocInfo, L"%s/LOGGPS/?U=%s&LAT=%.07f&LNG=%.07f&V=%s", ...);

HANDLE hHTTPthread = CreateThread ( NULL,           // No security attributes in Windows CE.
                                    0,              // Initial thread stack size, in bytes  (Must be 0 under Windows CE)
                                    (LPTHREAD_START_ROUTINE) HTTPthread,    // Thread procedure/function.
                                    &threadParam,   // The argument for the new thread
                                    0,              // Creation flags 
                                    NULL );         // Returned ID value (ignored).

// Wait for the worker thread to complete.  (with timeout)
if (WaitForSingleObject (hHTTPthread, g_progSettings.dInetTimeout) == WAIT_TIMEOUT)
{
    if (g_hHttpOpen)
        InternetCloseHandle (g_hHttpOpen);  // terminate session.

    // Wait until the worker thread exits
    WaitForSingleObject (hHTTPthread, INFINITE);

    CloseHandle (hHTTPthread);
    g_txtbox.print (L"Worker thread has exited.\r\n");

    return 0;
}




/////////////////// WorkerFunction ////////////////////// 
DWORD WINAPI HTTPthread (IN LPVOID vThreadParam)
{
    // Get pointer to thread parameters.
    THREADPARAM *pThreadParam = (THREADPARAM*)vThreadParam;

    // Initialize an application's use of the Win32 Internet functions.
    g_hHttpOpen = InternetOpen (APP_CLASSNAME,              // Application ID
                                INTERNET_OPEN_TYPE_DIRECT,  // No proxy server access
                                NULL,                       // No name for proxy server
                                NULL,                       // No bypass addresses
                                0);                         // No flags - Typical
    if (g_hHttpOpen == NULL)
        return 1;   // failure


    // Set timeout.  Whether they work or not, every bit might help.
    InternetSetOption (g_hHttpOpen, INTERNET_OPTION_CONNECT_TIMEOUT,         &g_progSettings.dInetTimeout, sizeof(DWORD));
    InternetSetOption (g_hHttpOpen, INTERNET_OPTION_RECEIVE_TIMEOUT,         &g_progSettings.dInetTimeout, sizeof(DWORD));
    InternetSetOption (g_hHttpOpen, INTERNET_OPTION_SEND_TIMEOUT,            &g_progSettings.dInetTimeout, sizeof(DWORD));
    InternetSetOption (g_hHttpOpen, INTERNET_OPTION_CONTROL_RECEIVE_TIMEOUT, &g_progSettings.dInetTimeout, sizeof(DWORD));
    InternetSetOption (g_hHttpOpen, INTERNET_OPTION_CONTROL_SEND_TIMEOUT,    &g_progSettings.dInetTimeout, sizeof(DWORD));
    InternetSetOption (g_hHttpOpen, INTERNET_OPTION_DATA_RECEIVE_TIMEOUT,    &g_progSettings.dInetTimeout, sizeof(DWORD));
    InternetSetOption (g_hHttpOpen, INTERNET_OPTION_DATA_SEND_TIMEOUT,       &g_progSettings.dInetTimeout, sizeof(DWORD));


    g_hHttpUrl = InternetOpenUrl (g_hHttpOpen,
                                  pThreadParam->wszLocInfo,
                                  NULL,
                                  0,
                                  INTERNET_FLAG_RELOAD | INTERNET_FLAG_PRAGMA_NOCACHE | INTERNET_FLAG_NO_CACHE_WRITE,
                                  0);
    if (g_hHttpUrl == NULL)
    {
        InternetCloseHandle (g_hHttpOpen);
        return 2;   // failure
    }

    // clean-up.
    InternetCloseHandle (g_hHttpOpen);
    InternetCloseHandle (g_hHttpUrl);

    return 0;   // success
}

现在虽然这很有效（大多数情况下），但我们都知道超时是片状的，这种强力技术在任何时候都不是非常可靠和反应灵敏。

InternetOpenUrl（..）功能让事情变得简单，但它已经半生不熟，而且不够灵活。

所以我正在寻找一种替代方法来执行相同的操作。 具有可靠的超时。

你们是如何处理这些网络服务器更新的？

感谢。

Answer 1

可能不是一个有用的答案，但我正在为我的移动应用程序使用WTL，它在CAtlHttpClientT中很好地完成了Web服务访问。但是，没有玩过更改SOAP请求的超时。

有人可以推荐一个更好的替代InternetOpenUrl（..）？

1 个答案: