Hello, I've understood how this works and seems working as expected. > Anyway this is just a test module so if things works for you by > changing the above way, its fine. However I wonder why its not > generating .def file for you.
Surely. Getting back on topic, using dsm_keep_segment, I saw postmaster keeping the section handle for the dsm segment and any session ever after the creating session gone off could recall the segment, unlike dsm_keep_mapping couldn't retain them after end of the creating session. And this exactly resembles linux version in behavior including attach failure. The orphan section handles on postmaster have become a matter of documentation. Besides all above, I'd like to see a comment for the win32 code about the 'DuplicateHandle hack', specifically, description that the DuplicateHandle pushes the copy of the section handle to the postmaster so the section can retain for the postmaster lifetime. By the way I have one additional comment. All postgres processes already keep a section handle for 'Global/PostgreSQL:<pgdata file path>' aside from dsm. It tells itself is for the file. On the other hand the names for the dsm sections are 'Global/PostgreSQL.%d'. This seems a bit unkindly as they don't tell what they are of. Do you mind changing it to, say, 'Global/PostgreSQL.dsm.%d' or something like that? regards, -- Kyotaro Horiguchi NTT Open Source Software Center -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
