On Tue, Jan 28, 2014 at 6:12 AM, Kyotaro HORIGUCHI <horiguchi.kyot...@lab.ntt.co.jp> wrote: > I had a short look on this patch. > > - DSM implimentation seems divided into generic part (dsm.c) and > platform dependent part(dsm_impl.c). This dsm_keep_segment > puts WIN32 specific part directly into dms.c. I suppose it'd > be better defining DSM_OP_KEEP_SEGMENT and calling dms_impl_op > from dms_keep_segment, or something.
That might not be a very good fit, but maybe there should be a separate function exposed by dsm_impl.c to do the implementation-dependent part of the work; it would be a no-op except on Windows. > - Repeated calling of dsm_keep_segment even from different > backends creates new (orphan) handles as many as it is called. > Simplly invoking this function in some of extensions intending > to stick segments might results in so many orphan > handles. Something to curb that situation would be needed. I don't really think this is a problem. Let's just document that dsm_keep_segment() should not be called more than once per segment. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers