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Merge remote branch 'amdragon/search-perf-3'

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This commit is contained in:
Carl Worth 2011-03-10 11:05:49 -08:00
commit 42b0409f8e
1 changed files with 16 additions and 15 deletions
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31
lib/query.cc
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@ -41,6 +41,9 @@ struct _notmuch_doc_id_set {
unsigned int bound;
};
#define DOCIDSET_WORD(bit) ((bit) / sizeof (unsigned int))
#define DOCIDSET_BIT(bit) ((bit) % sizeof (unsigned int))
struct _notmuch_threads {
notmuch_query_t *query;
@ -257,22 +260,24 @@ _notmuch_mset_messages_move_to_next (notmuch_messages_t *messages)
static notmuch_bool_t
_notmuch_doc_id_set_init (void *ctx,
notmuch_doc_id_set_t *doc_ids,
GArray *arr, unsigned int bound)
GArray *arr)
{
size_t count = (bound + sizeof (doc_ids->bitmap[0]) - 1) /
sizeof (doc_ids->bitmap[0]);
unsigned int *bitmap = talloc_zero_array (ctx, unsigned int, count);
unsigned int max = 0;
unsigned int *bitmap;
for (unsigned int i = 0; i < arr->len; i++)
max = MAX(max, g_array_index (arr, unsigned int, i));
bitmap = talloc_zero_array (ctx, unsigned int, 1 + max / sizeof (*bitmap));
if (bitmap == NULL)
return FALSE;
doc_ids->bitmap = bitmap;
doc_ids->bound = bound;
doc_ids->bound = max + 1;
for (unsigned int i = 0; i < arr->len; i++) {
unsigned int doc_id = g_array_index(arr, unsigned int, i);
bitmap[doc_id / sizeof (bitmap[0])] |=
1 << (doc_id % sizeof (bitmap[0]));
unsigned int doc_id = g_array_index (arr, unsigned int, i);
bitmap[DOCIDSET_WORD(doc_id)] |= 1 << DOCIDSET_BIT(doc_id);
}
return TRUE;
@ -284,8 +289,7 @@ _notmuch_doc_id_set_contains (notmuch_doc_id_set_t *doc_ids,
{
if (doc_id >= doc_ids->bound)
return FALSE;
return (doc_ids->bitmap[doc_id / sizeof (doc_ids->bitmap[0])] &
(1 << (doc_id % sizeof (doc_ids->bitmap[0])))) != 0;
return doc_ids->bitmap[DOCIDSET_WORD(doc_id)] & (1 << DOCIDSET_BIT(doc_id));
}
void
@ -293,8 +297,7 @@ _notmuch_doc_id_set_remove (notmuch_doc_id_set_t *doc_ids,
unsigned int doc_id)
{
if (doc_id < doc_ids->bound)
doc_ids->bitmap[doc_id / sizeof (doc_ids->bitmap[0])] &=
~(1 << (doc_id % sizeof (doc_ids->bitmap[0])));
doc_ids->bitmap[DOCIDSET_WORD(doc_id)] &= ~(1 << DOCIDSET_BIT(doc_id));
}
/* Glib objects force use to use a talloc destructor as well, (but not
@ -315,7 +318,6 @@ notmuch_query_search_threads (notmuch_query_t *query)
{
notmuch_threads_t *threads;
notmuch_messages_t *messages;
Xapian::docid max_doc_id = 0;
threads = talloc (query, notmuch_threads_t);
if (threads == NULL)
@ -335,7 +337,6 @@ notmuch_query_search_threads (notmuch_query_t *query)
while (notmuch_messages_valid (messages)) {
unsigned int doc_id = _notmuch_mset_messages_get_doc_id (messages);
g_array_append_val (threads->doc_ids, doc_id);
max_doc_id = MAX (max_doc_id, doc_id);
notmuch_messages_move_to_next (messages);
}
threads->doc_id_pos = 0;
@ -343,7 +344,7 @@ notmuch_query_search_threads (notmuch_query_t *query)
talloc_free (messages);
if (! _notmuch_doc_id_set_init (threads, &threads->match_set,
threads->doc_ids, max_doc_id + 1)) {
threads->doc_ids)) {
talloc_free (threads);
return NULL;
}