[Rpm-maint] RFC: Unblocking of signals within rpm
pmatilai at redhat.com
Thu Jul 19 10:30:07 UTC 2007
On Thu, 19 Jul 2007, Michael Schroeder wrote:
> On Thu, Jul 19, 2007 at 12:58:29PM +0300, Panu Matilainen wrote:
>> Attached patch turns the signal handling within rpmdb upside down: we no
>> longer run the whole damn thing with termination signals blocked with
>> occasional checking possibly resulting in exit() from deep within rpmlib,
>> but instead have an active signal handler that will mop up any open
>> transactions and iterators and pass on the signal to caller.
> Whoa, doing complex things in a signal handler is very dangerous.
> You can interrupt rpm deep inside some glibc function like "malloc".
Yes, but then this is a terminating signal handler, and AFAICT does just
what's described in glibc manual as the cleanest way to handle this:
- Panu -
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