public virtual void Dispose()
{
try
{
StreamAccessLock.Wait();
_IsDisposed = true;
_InputStream?.Dispose();
_InputStream = null;
}
finally
{
StreamAccessLock.Release();
}
}
public virtual Windows.Foundation.IAsyncOperationWithProgress <IBuffer, uint> ReadAsync(IBuffer buffer, uint count, InputStreamOptions options)
{
try
{
StreamAccessLock.Wait();
if (_IsDisposed)
{
return(AsyncInfo.Run <IBuffer, uint>((token, progress) =>
{
return Task.FromResult(buffer);
}));
}
_CurrentPosition += count;
return(_InputStream.ReadAsync(buffer, count, options));
}
finally
{
StreamAccessLock.Release();
}
}
private async Task ResetInputStream()
{
try
{
await StreamAccessLock.WaitAsync();
if (_IsDisposed)
{
return;
}
var inputStream = _InputStream;
_InputStream = await ReadRequestAsync(_CurrentPosition);
inputStream?.Dispose();
}
finally
{
StreamAccessLock.Release();
}
}