On 02/27/2012 06:00 PM, John Reiser wrote:
On 02/27/2012 07:29 AM, Bruno Wolff III wrote:
On Mon, Feb 27, 2012 at 14:00:51 +0000,
Frank Murphy<frankly3d@xxxxxxxxx> wrote:
On 27/02/12 13:52, elison.niven@xxxxxxxxx wrote:
4) Quit on single CTRL-C. Users expect an application to quit on
pressing CTRL-C.
Reason to have this feature : Better user experience
never used ctrl-c, normally use "killall yum"
if required.
Control C works, but it needs to reach a break point. And once you start
actually doing a transaction you don't normally want control C to work
since it will leave your system in a state where manual cleanup is likely
required.
That behavior (no response to ^C [SIGINT] within 5 seconds) is a bug.
It's a _transaction_, right? So either it completes successfully,
or fails with no apparent lasting effects (except log files, delay, etc.)
So yum should: respond immediately on stderr, abort the transaction
(roll back everything to the state before the transaction began),
and terminate with failure status. Because the original request
is for a transaction, then yum *must* be able to abort and rollback
anyway, to recover from I/O errors [and such errors _do_ happen.]
So, act as if ^C [SIGINT] is an I/O error.
Rpm's so-called transactions aren't ACID by any stretch of imagination,
it's just a rather common misunderstanding to expect them to be.
- Panu -
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