public PdfFile(string path)
{
if (!Settings.UsePdf)
{
throw new InvalidOperationException("PDF formats are not configured to use.");
}
lock (lockObject)
{
if (wrappers.TryGetValue(path, out wrapper))
{
wrapper.Count++;
}
else
{
wrapper = new WrapperUseCountPair(path);
wrappers[path] = wrapper;
}
}
}
private static void TryDisposeWrapper(object data)
{
try
{
Thread.Sleep(60000);
string path = (string)data;
WrapperUseCountPair wrapper;
if (wrappers.TryGetValue(path, out wrapper) && wrapper.Count == 0 && !wrapper.Disposed && DateTime.Now - wrapper.LastUsedTime >= TimeSpan.FromSeconds(60))
{
lock (lockObject)
{
if (wrapper.Count == 0 && !wrapper.Disposed)
{
wrapper.Dispose();
wrappers.Remove(path);
}
wrapper = null;
}
}
}
catch (Exception ex)
{
Utility.TryLogError(ex);
throw;
}
}
