From 70962fabf9c57cda5af26c28894fc9371fd085f2 Mon Sep 17 00:00:00 2001 From: Carl Worth Date: Mon, 23 Nov 2009 21:47:24 -0800 Subject: lib/messages.c: Make message searches stream as well. Xapian provides an interator-based interface to all search results. So it was natural to make notmuch_messages_t be iterator-based as well. Which we did originally. But we ran into a problem when we added two APIs, (_get_replies and _get_toplevel_messages), that want to return a messages iterator that's *not* based on a Xapian search result. My original compromise was to use notmuch_message_list_t as the basis for all returned messages iterators in the public interface. This had the problem of introducing extra latency at the beginning of a search for messages, (the call would block while iterating over all results from Xapian, converting to a message list). In this commit, we remove that initial conversion and instead provide two alternate implementations of notmuch_messages_t (one on top of a Xapian iterator and one on top of a message list). With this change, I tested a "notmuch search" returning *many* results as previously taking about 7 seconds before results started appearing, and now taking only 2 seconds. --- lib/notmuch-private.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'lib/notmuch-private.h') diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h index 2b4bf319..d3f9a4c4 100644 --- a/lib/notmuch-private.h +++ b/lib/notmuch-private.h @@ -290,6 +290,15 @@ typedef struct _notmuch_message_list { notmuch_message_node_t **tail; } notmuch_message_list_t; +/* There's a rumor that there's an alternate struct _notmuch_messages + * somewhere with some nasty C++ objects in it. We'll try to maintain + * ignorance of that here. (See notmuch_mset_messages_t in query.cc) + */ +struct _notmuch_messages { + notmuch_bool_t is_of_list_type; + notmuch_message_node_t *iterator; +}; + notmuch_message_list_t * _notmuch_message_list_create (const void *ctx); @@ -304,6 +313,17 @@ _notmuch_message_list_add_message (notmuch_message_list_t *list, notmuch_messages_t * _notmuch_messages_create (notmuch_message_list_t *list); +/* query.cc */ + +notmuch_bool_t +_notmuch_mset_messages_has_more (notmuch_messages_t *messages); + +notmuch_message_t * +_notmuch_mset_messages_get (notmuch_messages_t *messages); + +void +_notmuch_mset_messages_advance (notmuch_messages_t *messages); + /* message.cc */ void -- cgit v1.2.3