cannot cancel fetch

[ryandesign (Ryan Carsten Schmidt)]

If I press ^C during fetching a distfile, MacPorts cancels fetching from that server, but then tries to fetch from the next server.

When I press ^C I want MacPorts to stop what it's doing and exit.

[neverpanic (Clemens Lang)]

Yes, I'm aware of that. It gets even worse in verbose mode, where ^{C doesn't abort until the download is completed. The try-catch-block that wraps curl fetch needs to detect whether the download was stopped because of a signal, and if it was pass the error up instead of trying the next mirror.}

The curl code also needs to me sure it aborts immediately when receiving a signal. I'm not sure how we can do given the way the curl API looks. We might have to switch to curl_multi_perform.

[nerdling (Jeremy Lavergne)]

Cc Me!

[neverpanic (Clemens Lang)]

Fixed in r118713, r118714 and somewhat related r118715.