c# - Wininet缓存API在Windows 8中挂起

我正在将P/Invoke与C#一起使用，以清除缓存条目，如下所示。该代码似乎可以在32位和64位Windows 7上正常运行。在Windows 8 Release Candidate上，它卡在DeleteUrlsFromGroup调用上。

[DllImport(@"wininet",
    SetLastError = true,
    CharSet = CharSet.Auto,
    EntryPoint = "FindFirstUrlCacheGroup",
    CallingConvention = CallingConvention.StdCall)]
private static extern IntPtr FindFirstUrlCacheGroup(
    int dwFlags,
    int dwFilter,
    IntPtr lpSearchCondition,
    int dwSearchCondition,
    ref long lpGroupId,
    IntPtr lpReserved);
// For PInvoke: Retrieves the next cache group in a cache group enumeration
[DllImport(@"wininet",
    SetLastError = true,
    CharSet = CharSet.Auto,
    EntryPoint = "FindNextUrlCacheGroup",
    CallingConvention = CallingConvention.StdCall)]
private static extern bool FindNextUrlCacheGroup(
    IntPtr hFind,
    ref long lpGroupId,
    IntPtr lpReserved);
// For PInvoke: Releases the specified GROUPID and any associated state in the cache index file
[DllImport(@"wininet",
    SetLastError = true,
    CharSet = CharSet.Auto,
    EntryPoint = "DeleteUrlCacheGroup",
    CallingConvention = CallingConvention.StdCall)]
private static extern bool DeleteUrlCacheGroup(
    long GroupId,
    int dwFlags,
    IntPtr lpReserved);
// For PInvoke: Begins the enumeration of the Internet cache
[DllImport(@"wininet",
    SetLastError = true,
    CharSet = CharSet.Auto,
    EntryPoint = "FindFirstUrlCacheEntryA",
    CallingConvention = CallingConvention.StdCall)]
private static extern IntPtr FindFirstUrlCacheEntry(
    [MarshalAs(UnmanagedType.LPTStr)] string lpszUrlSearchPattern,
    IntPtr lpFirstCacheEntryInfo,
    ref int lpdwFirstCacheEntryInfoBufferSize);
// For PInvoke: Retrieves the next entry in the Internet cache
[DllImport(@"wininet",
    SetLastError = true,
    CharSet = CharSet.Auto,
    EntryPoint = "FindNextUrlCacheEntryA",
    CallingConvention = CallingConvention.StdCall)]
private static extern bool FindNextUrlCacheEntry(
    IntPtr hFind,
    IntPtr lpNextCacheEntryInfo,
    ref int lpdwNextCacheEntryInfoBufferSize);
// For PInvoke: Removes the file that is associated with the source name from the cache, if the file exists
[DllImport(@"wininet",
    SetLastError = true,
    CharSet = CharSet.Auto,
    EntryPoint = "DeleteUrlCacheEntryA",
    CallingConvention = CallingConvention.StdCall)]
static extern bool DeleteUrlCacheEntry(string lpszUrlName);

/// <summary>
/// Clears the cache of the web browser
/// </summary>
[HandleProcessCorruptedStateExceptions]
public static void ClearCache(Uri hostName)
{
    if (hostName == null)
    {
        return;
    }

    long groupId = 0;
    try
    {
        // Delete the groups first.
        IntPtr enumHandle = FindFirstUrlCacheGroup(0, CACHEGROUP_SEARCH_ALL, IntPtr.Zero, 0, ref groupId, IntPtr.Zero);
        if (enumHandle != IntPtr.Zero && ERROR_NO_MORE_ITEMS == Marshal.GetLastWin32Error())
        {
            return;
        }

        // Loop through Cache Group, and then delete entries.
        while (true)
        {
            if (ERROR_NO_MORE_ITEMS == Marshal.GetLastWin32Error() || ERROR_FILE_NOT_FOUND == Marshal.GetLastWin32Error())
            {
                break;
            }

            // Delete a particular Cache Group.
            // Hangs on WIndows 8
            bool returnValue = DeleteUrlCacheGroup(groupId, CACHEGROUP_FLAG_FLUSHURL_ONDELETE, IntPtr.Zero);
            if (!returnValue && ERROR_FILE_NOT_FOUND == Marshal.GetLastWin32Error())
            {
                returnValue = FindNextUrlCacheGroup(enumHandle, ref groupId, IntPtr.Zero);
            }
            if (!returnValue && (ERROR_NO_MORE_ITEMS == Marshal.GetLastWin32Error() || ERROR_FILE_NOT_FOUND == Marshal.GetLastWin32Error()))
                break;
        }
        DeleteUrlsFromGroup(hostName); // this hangs on Windows 8
    }
    catch (AccessViolationException)
    {

    }
}

对Windows 8 Win API中的更改有任何见解/引用吗？

提前致谢。

最佳答案

每个人都链接到的那篇kb文章有很多错误(另一个答案的源代码来自哪里)，而我浪费了大约2天的时间才能使它在所有必要的设置下都能正常工作。它是通过Internet复制粘贴的，并且根据OS和IE版本报告了许多错误。

Fiddler最初由Microsoft员工编写，并由FiddlerCore.dll驱动。 Fiddler的Telerik(当前所有者/维护商/卖方)仍免费更新，维护和赠送FiddlerCore。如果您不想添加对FiddlerCore的引用，则可以反汇编该dll，它显示了正确的方式来调用所有这些可怕地记录在案的WinINet函数，但是我认为在此发布该消息将对Telerik/gar窃不利。

目前，Fiddlercore托管在这里:http://www.telerik.com/fiddler/fiddlercore

关于c# - Wininet缓存API在Windows 8中挂起，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/11690121/