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Re: How the backend knows it's being searched by syncprov?
Pierangelo Masarati wrote:
Update of /repo/OpenLDAP/pkg/ldap/servers/slapd/overlays
syncprov.c 1.24 -> 1.25
to use syncprov on top of back-sql, I need the backend to know it's
being searched for sync replication purposes when filtering for CSN.
To this end, I added a function slap_find_control_id() that returns
the cid for a given control oid; then, to determine if a search is
performed for syncrepl purposes, I'd use
slap_find_control_id( LDAP_CONTROL_SYNC, &sync_cid );
to grab the control's cid at initialization and, when requested to
filter for CSN, I'd test (op->o_controls[sync_cid]).
sync_cid could be a back-sql wide static variable, initialized to -1
and grabbed, for instance, at bi_open(); or it could
even be global scoped, in case other backends need to be syncrepl-aware.
Do you think this is correct?
Yes, thanks. I meant to add a function like this already but forgot. If
we really need global knowledge of this control we can put the #define's
and such back into slap.h and controls.c.
#define o_sync_mode ...
would probably be the most useful.
-- Howard Chu
Chief Architect, Symas Corp. Director, Highland Sun
Symas: Premier OpenSource Development and Support