ldb_search interface considered harmful
abartlet at samba.org
Tue Jan 31 05:02:49 GMT 2006
I've recently been working on the Samba4 code, and the output of
--leak-report-full in particular.
The contents of this (for an inactive connection) should be quite small,
but I initially found a large number of ldb_message structures being
kept around. While some of this was easy to clean up, the problem
appears to be the interface:
int ldb_search(struct ldb_context *ldb,
const struct ldb_dn *base,
enum ldb_scope scope,
const char *expression,
const char * const *attrs, struct ldb_result **res);
Because the *res is returned on the ldb as a context, it often stays
there. The gendb wrapper 'fixes' this, but we don't always use it.
Should we modify the interface to have an explicit mem_ctx argument, to
avoid the caller needing to manually talloc_steal?
Andrew Bartlett http://samba.org/~abartlet/
Authentication Developer, Samba Team http://samba.org
Student Network Administrator, Hawker College http://hawkerc.net
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