/// <summary>
/// Frees this transfer.
/// </summary>
///<remarks>
/// <note title="Libusb-1.0 API Note:" type="cpp">
/// <see cref="Free"/> is roughly equivalent to
/// <a href="http://libusb.sourceforge.net/api-1.0/group__asyncio.html#ga6ab8b2cff4de9091298a06b2f4b86cd6">libusb_free_transfer()</a>.
/// </note>
/// <note type="warning">
/// Calling <see cref="Free"/> on a transfer that has already been freed will result in a double free.
/// </note>
/// </remarks>
public void Free()
{
if (handle != IntPtr.Zero)
{
MonoUsbApi.FreeTransfer(handle);
handle = IntPtr.Zero;
}
}