public RemoteDirectoryIndexInput(RemoteDirectoryIndexInput cloneInput)
{
_name = cloneInput._name;
_remoteSyncDirectory = cloneInput._remoteSyncDirectory;
if (string.IsNullOrWhiteSpace(_name))
{
throw new ArgumentNullException(nameof(cloneInput._name));
}
if (_remoteSyncDirectory == null)
{
throw new ArgumentNullException(nameof(cloneInput._remoteSyncDirectory));
}
_fileMutex = SyncMutexManager.GrabMutex(cloneInput._remoteSyncDirectory, cloneInput._name);
_fileMutex.WaitOne();
try
{
#if FULLDEBUG
Trace.WriteLine($"Creating clone for {cloneInput._name}");
#endif
_indexInput = cloneInput._indexInput.Clone() as IndexInput;
}
catch (Exception)
{
// sometimes we get access denied on the 2nd stream...but not always. I haven't tracked it down yet
// but this covers our tail until I do
Trace.TraceError($"Dagnabbit, falling back to memory clone for {cloneInput._name}");
}
finally
{
_fileMutex.ReleaseMutex();
}
}
public override object Clone()
{
IndexInput clone = null;
try
{
_fileMutex.WaitOne();
var input = new RemoteDirectoryIndexInput(this);
clone = input;
}
catch (Exception err)
{
Trace.TraceError(err.ToString());
}
finally
{
_fileMutex.ReleaseMutex();
}
Debug.Assert(clone != null);
return(clone);
}
