Robert Haas wrote: > On Wed, Oct 8, 2014 at 8:47 AM, Andres Freund <and...@2ndquadrant.com> wrote: > > I don't see that as being relevant. The difference is an instruction or > > two - in the slow path we'll enter the kernel and sleep. This doesn't > > matter in comparison. > > And the code is *so* much more readable. > > I find the slist/dlist stuff actually quite difficult to get right > compared to a hand-rolled linked list. But the really big problem is > that the debugger can't do anything useful with it. You have to work > out the structure-member offset in order to walk the list and manually > cast to char *, adjust the pointer, and cast back. That sucks.
As far as I recall you can get gdb to understand those pointer games by defining some structs or macros. Maybe we can improve by documenting this. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
