private static void ForEachCacheEntry(long groupId, string searchPattern, int flags, CacheEntryAction action)
{
int cacheEntryInfoBufferSize = 0;
IntPtr cacheEntryInfoBuffer = IntPtr.Zero;
IntPtr enumHandle = IntPtr.Zero;
try
{
for (;;)
{
enumHandle = FindFirstUrlCacheEntryEx(searchPattern, 0, flags,
groupId, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSize, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
int err = Marshal.GetLastWin32Error();
if (enumHandle != IntPtr.Zero)
{
break;
}
if (err == ERROR_NO_MORE_ITEMS || err == ERROR_FILE_NOT_FOUND)
{
return;
}
if (err != ERROR_INSUFFICIENT_BUFFER)
{
ThrowExceptionForLastWin32Error();
}
cacheEntryInfoBuffer = Marshal.ReAllocCoTaskMem(cacheEntryInfoBuffer, cacheEntryInfoBufferSize);
}
for (;;)
{
INTERNET_CACHE_ENTRY_INFO entry = (INTERNET_CACHE_ENTRY_INFO)
Marshal.PtrToStructure(cacheEntryInfoBuffer, typeof(INTERNET_CACHE_ENTRY_INFO));
action(entry);
// Get next entry.
bool returnValue = FindNextUrlCacheEntryEx(enumHandle, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSize,
IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
int err = Marshal.GetLastWin32Error();
if (!returnValue)
{
if (err == ERROR_NO_MORE_ITEMS || err == ERROR_FILE_NOT_FOUND)
{
return;
}
if (err != ERROR_INSUFFICIENT_BUFFER)
{
ThrowExceptionForLastWin32Error();
}
cacheEntryInfoBuffer = Marshal.ReAllocCoTaskMem(cacheEntryInfoBuffer, cacheEntryInfoBufferSize);
}
}
}
finally
{
Marshal.FreeCoTaskMem(cacheEntryInfoBuffer);
if (enumHandle != IntPtr.Zero)
{
FindCloseUrlCache(enumHandle);
}
}
}
private static void ForEachCacheEntry(long groupId, string searchPattern, int flags, CacheEntryAction action)
{
int cacheEntryInfoBufferSize = 0;
IntPtr cacheEntryInfoBuffer = IntPtr.Zero;
IntPtr enumHandle = IntPtr.Zero;
try
{
for (;;)
{
enumHandle = FindFirstUrlCacheEntryEx(searchPattern, 0, flags,
groupId, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSize, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
int err = Marshal.GetLastWin32Error();
if (enumHandle != IntPtr.Zero)
break;
if (err == ERROR_NO_MORE_ITEMS || err == ERROR_FILE_NOT_FOUND)
return;
if (err != ERROR_INSUFFICIENT_BUFFER)
ThrowExceptionForLastWin32Error();
cacheEntryInfoBuffer = Marshal.ReAllocCoTaskMem(cacheEntryInfoBuffer, cacheEntryInfoBufferSize);
}
for (;;)
{
INTERNET_CACHE_ENTRY_INFO entry = (INTERNET_CACHE_ENTRY_INFO)
Marshal.PtrToStructure(cacheEntryInfoBuffer, typeof (INTERNET_CACHE_ENTRY_INFO));
action(entry);
// Get next entry.
bool returnValue = FindNextUrlCacheEntryEx(enumHandle, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSize,
IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
int err = Marshal.GetLastWin32Error();
if (!returnValue)
{
if (err == ERROR_NO_MORE_ITEMS || err == ERROR_FILE_NOT_FOUND)
return;
if (err != ERROR_INSUFFICIENT_BUFFER)
ThrowExceptionForLastWin32Error();
cacheEntryInfoBuffer = Marshal.ReAllocCoTaskMem(cacheEntryInfoBuffer, cacheEntryInfoBufferSize);
}
}
}
finally
{
Marshal.FreeCoTaskMem(cacheEntryInfoBuffer);
if (enumHandle != IntPtr.Zero)
FindCloseUrlCache(enumHandle);
}
}
