static void Indexer()
{
string indexerFile = "";
try
{
Guid IPropertyStoreGuid = new Guid("886D8EEB-8CF2-4446-8D02-CDBA1DBDCF99");
DirectoryInfo di = new DirectoryInfo(targetDirectory);
bool done = false;
while (!done)
{
foreach (FileInfo file in di.GetFiles())
{
indexerFile = file.Name;
// To simulate indexer, open handler directly to get fine-grained control over flags
//HResult hr = (HResult)SHGetPropertyStoreFromParsingName(file.FullName, IntPtr.Zero,
// GETPROPERTYSTOREFLAGS.GPS_DEFAULT, ref IPropertySto on '{indexerFile}'reGuid, out IPropertyStore ps);
var ps = new IPropertyHandler();
try
{
HResult hr = ps.Initialize(file.FullName, (uint)(StgmConstants.STGM_READ | StgmConstants.STGM_SHARE_DENY_NONE));
if (hr == HResult.Ok)
{
hr = ps.GetCount(out uint propertyCount);
if (hr == HResult.Ok)
{
for (uint index = 0; index < propertyCount; index++)
{
PropVariant val = new PropVariant();
hr = ps.GetAt(index, out PropertyKey key);
if (hr == HResult.Ok)
{
hr = ps.GetValue(key, val);
if (hr == HResult.Ok)
{
LogLine(3, $"Indexer read {val}");
}
else
{
throw new Exception($"GetValue failed with 0x{hr:X}");
}
}
else
{
throw new Exception($"GetAt failed with 0x{hr:X}");
}
}
}
else if ((uint)hr == 0x80030021)
{
LogLine(2, $"GetCount for {indexerFile} failed with STG_E_LOCKVIOLATION");
IncrementIndexerFail();
}
else
{
throw new Exception($"GetCount failed with 0x{hr:X}");
}
done = IncrementIndexer();
if (done)
{
break;
}
}
else if ((uint)hr == 0x80030021)
{
LogLine(2, $"Open for {indexerFile} failed with STG_E_LOCKVIOLATION");
IncrementIndexerFail();
}
//else
// throw new Exception($"Open failed with 0x{hr:X}");
else
{
// Indexer can tolerate some failures, but not too many
LogLine(1, $"Indexer Open failed on '{indexerFile}' with 0x{hr:X}");
IncrementIndexerFail();
}
}
finally
{
Marshal.ReleaseComObject(ps); // optional GC preempt
}
}
}
}
catch (Exception ex)
{
LogLine(1, $"Indexer terminated on '{indexerFile}': {ex}");
IncrementIndexerTerminated();
}
}