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database: Add new find_doc_ids_for_term interface.

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The existing find_doc_ids function is convenient when the caller
doesn't want to be bothered constructing a term. But when the caller
*does* have the term already, that interface is just wasteful. So we
export a lower-level interface that maps a pre-constructed term to a
document-ID iterators.
This commit is contained in:
Carl Worth 2009-12-21 15:12:52 -08:00
parent d7e5f5827e
commit 44a74912c7
1 changed files with 12 additions and 4 deletions
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16
lib/database.cc
View file

@ -213,6 +213,17 @@ notmuch_status_to_string (notmuch_status_t status)
}
}
static void
find_doc_ids_for_term (notmuch_database_t *notmuch,
const char *term,
Xapian::PostingIterator *begin,
Xapian::PostingIterator *end)
{
*begin = notmuch->xapian_db->postlist_begin (term);
*end = notmuch->xapian_db->postlist_end (term);
}
static void
find_doc_ids (notmuch_database_t *notmuch,
const char *prefix_name,
@ -220,15 +231,12 @@ find_doc_ids (notmuch_database_t *notmuch,
Xapian::PostingIterator *begin,
Xapian::PostingIterator *end)
{
Xapian::PostingIterator i;
char *term;
term = talloc_asprintf (notmuch, "%s%s",
_find_prefix (prefix_name), value);
*begin = notmuch->xapian_db->postlist_begin (term);
*end = notmuch->xapian_db->postlist_end (term);
find_doc_ids_for_term (notmuch, term, begin, end);
talloc_free (term);
}