[Spice-devel] spice-gtk file xfer robustness series v2

[Hans de Goede]

Here is v2 of my file xfer robustness / error handling series.

The main change since v1 is that I've reworked the handling for getting
cancelling trasnfers while a callback is pending, since the previous series
missed some scenarios where the file-xfer-task would be destroyed while
callbacks referencing it where still pending.

This series has been tested with both seamless and semi-seamless migration
with active file xfers during the migration.

Regards,

Hans