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https://git.notmuchmail.org/git/notmuch
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notmuch search: Remove the chunked-searching hack.
This was a poor workaround around the fact that the existing notmuch_threads_t object is implemented poorly. It's got a fine iterartor-based interface, but the implementation does all of the work up-front in _create rather than doing the work incrementally while iterating. So to start fixing this, first get rid of all the hacks we had working around this. This drops the --first and --max-threads options from the search command, (but hopefully nobody was using them anyway---notmuch.el certainly wasn't).
This commit is contained in:
Carl Worth
parent
f615803932
commit
1fd8b7866f
6 changed files with 25 additions and 144 deletions
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@ -322,14 +322,6 @@ notmuch_query_set_sort (notmuch_query_t *query, notmuch_sort_t sort);
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* object is owned by the query and as such, will only be valid until
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* notmuch_query_destroy.
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*
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* The 'first' and 'max_threads' arguments can be used to obtain
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* partial results from the search. For example, to get results 10 at
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* a time, pass 'max_threads' as 10 and for 'first' pass the values 0,
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* 10, 20, etc. As a special case, a value of -1 for 'max_threads'
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* indicates that no limiting is to be performed. So a search with
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* 'first' == 0 and 'max_threads' == -1 will return the complete
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* results of the search.
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*
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* Typical usage might be:
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*
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* notmuch_query_t *query;
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@ -362,8 +354,7 @@ notmuch_query_set_sort (notmuch_query_t *query, notmuch_sort_t sort);
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* to call it if the query is about to be destroyed).
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*/
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notmuch_threads_t *
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notmuch_query_search_threads (notmuch_query_t *query,
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int first, int max_threads);
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notmuch_query_search_threads (notmuch_query_t *query);
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/* Execute a query for messages, returning a notmuch_messages_t object
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* which can be used to iterate over the results. The returned
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57
lib/query.cc
57
lib/query.cc
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@ -171,9 +171,7 @@ _notmuch_threads_destructor (notmuch_threads_t *threads)
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}
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notmuch_threads_t *
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notmuch_query_search_threads (notmuch_query_t *query,
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int first,
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int max_threads)
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notmuch_query_search_threads (notmuch_query_t *query)
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{
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notmuch_threads_t *threads;
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notmuch_thread_t *thread;
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@ -181,7 +179,6 @@ notmuch_query_search_threads (notmuch_query_t *query,
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notmuch_messages_t *messages;
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notmuch_message_t *message;
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GHashTable *seen;
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int messages_seen = 0, threads_seen = 0;
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threads = talloc (query, notmuch_threads_t);
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if (threads == NULL)
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@ -196,49 +193,27 @@ notmuch_query_search_threads (notmuch_query_t *query,
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seen = g_hash_table_new_full (g_str_hash, g_str_equal,
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free, NULL);
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while (max_threads < 0 || threads_seen < first + max_threads)
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for (messages = notmuch_query_search_messages (query, 0, -1);
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notmuch_messages_has_more (messages);
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notmuch_messages_advance (messages))
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{
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int messages_seen_previously = messages_seen;
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message = notmuch_messages_get (messages);
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for (messages = notmuch_query_search_messages (query,
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messages_seen,
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max_threads);
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notmuch_messages_has_more (messages);
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notmuch_messages_advance (messages))
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thread_id = notmuch_message_get_thread_id (message);
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if (! g_hash_table_lookup_extended (seen,
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thread_id, NULL,
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(void **) &thread))
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{
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message = notmuch_messages_get (messages);
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thread = _notmuch_thread_create (query, query->notmuch,
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thread_id,
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query->query_string);
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g_ptr_array_add (threads->threads, thread);
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thread_id = notmuch_message_get_thread_id (message);
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if (! g_hash_table_lookup_extended (seen,
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thread_id, NULL,
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(void **) &thread))
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{
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if (threads_seen >= first) {
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thread = _notmuch_thread_create (query, query->notmuch,
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thread_id,
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query->query_string);
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g_ptr_array_add (threads->threads, thread);
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} else {
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thread = NULL;
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}
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g_hash_table_insert (seen, xstrdup (thread_id), thread);
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threads_seen++;
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}
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notmuch_message_destroy (message);
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messages_seen++;
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if (max_threads >= 0 && threads_seen >= first + max_threads)
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break;
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g_hash_table_insert (seen, xstrdup (thread_id), thread);
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}
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/* Stop if we're not seeing any more messages. */
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if (messages_seen == messages_seen_previously)
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break;
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notmuch_message_destroy (message);
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}
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g_hash_table_unref (seen);
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@ -20,40 +20,24 @@
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#include "notmuch-client.h"
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/* If the user asks for more than this number of threads, then break
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the results down into chunks so that results start appearing
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quickly rather than the user having to wait until all results are
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available before anything appears.
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Since each subsequent chunk ends up having to re-do threading work
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done by all previous chunks, we double the chunk size repeatedly
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until all desired results have been returned.
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*/
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#define NOTMUCH_SEARCH_INITIAL_CHUNK_SIZE 100
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/* Do the actual search for a chunk of threads and display the results,
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(returning the number of threads found in this chunk). */
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static int
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static void
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do_search_threads (const void *ctx,
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notmuch_query_t *query,
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notmuch_sort_t sort,
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int first, int max_threads)
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notmuch_sort_t sort)
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{
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notmuch_thread_t *thread;
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notmuch_threads_t *threads;
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notmuch_tags_t *tags;
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time_t date;
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const char *relative_date;
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int num_threads = 0;
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for (threads = notmuch_query_search_threads (query, first, max_threads);
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for (threads = notmuch_query_search_threads (query);
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notmuch_threads_has_more (threads);
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notmuch_threads_advance (threads))
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{
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int first_tag = 1;
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thread = notmuch_threads_get (threads);
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num_threads++;
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if (sort == NOTMUCH_SORT_OLDEST_FIRST)
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date = notmuch_thread_get_oldest_date (thread);
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@ -84,8 +68,6 @@ do_search_threads (const void *ctx,
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notmuch_thread_destroy (thread);
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}
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return num_threads;
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}
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int
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@ -95,32 +77,16 @@ notmuch_search_command (void *ctx, int argc, char *argv[])
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notmuch_database_t *notmuch;
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notmuch_query_t *query;
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char *query_str;
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int i, first = 0, max_threads = -1;
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char *opt, *end;
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char *opt;
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notmuch_sort_t sort = NOTMUCH_SORT_NEWEST_FIRST;
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int chunk_size;
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int threads_in_chunk;
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int i;
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for (i = 0; i < argc && argv[i][0] == '-'; i++) {
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if (strcmp (argv[i], "--") == 0) {
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i++;
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break;
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}
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if (STRNCMP_LITERAL (argv[i], "--first=") == 0) {
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opt = argv[i] + sizeof ("--first=") - 1;
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first = strtoul (opt, &end, 10);
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if (*opt == '\0' || *end != '\0') {
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fprintf (stderr, "Invalid value for --first: %s\n", opt);
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return 1;
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}
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} else if (STRNCMP_LITERAL (argv[i], "--max-threads=") == 0) {
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opt = argv[i] + sizeof ("--max-threads=") - 1;
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max_threads = strtoul (opt, &end, 10);
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if (*opt == '\0' || *end != '\0') {
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fprintf (stderr, "Invalid value for --max-threads: %s\n", opt);
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return 1;
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}
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} else if (STRNCMP_LITERAL (argv[i], "--sort=") == 0) {
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if (STRNCMP_LITERAL (argv[i], "--sort=") == 0) {
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opt = argv[i] + sizeof ("--sort=") - 1;
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if (strcmp (opt, "oldest-first") == 0) {
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sort = NOTMUCH_SORT_OLDEST_FIRST;
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@ -166,25 +132,7 @@ notmuch_search_command (void *ctx, int argc, char *argv[])
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notmuch_query_set_sort (query, sort);
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/* If we receive a max-threads option, then the user is
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responsible for any chunking and we return all results at
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once. */
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if (max_threads < 0)
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chunk_size = NOTMUCH_SEARCH_INITIAL_CHUNK_SIZE;
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else
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chunk_size = max_threads;
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do {
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threads_in_chunk = do_search_threads (ctx, query, sort,
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first, chunk_size);
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if (chunk_size == max_threads)
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break;
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first += chunk_size;
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chunk_size *= 2;
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} while (threads_in_chunk);
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do_search_threads (ctx, query, sort);
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notmuch_query_destroy (query);
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notmuch_database_close (notmuch);
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@ -238,7 +238,7 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
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return 1;
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}
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for (threads = notmuch_query_search_threads (query, 0, -1);
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for (threads = notmuch_query_search_threads (query);
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notmuch_threads_has_more (threads);
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notmuch_threads_advance (threads))
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{
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23
notmuch.1
23
notmuch.1
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@ -154,29 +154,6 @@ Supported options for
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include
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.RS 4
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.TP 4
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.BR \-\-max\-threads= <value>
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Restricts displayed search results to a subset of the complete results
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that would match the terms. With this option, no more than <value>
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thread results will be displayed. If this option is not used, then all
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matching threads will be displayed. See also the
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.B \-\-first
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option.
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.TP
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.BR \-\-first= <value>
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Omits the first <value> threads from the search results that would
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otherwise be displayed. Together with the
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.BR \-\-max\-threads
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option, this can be used to perform incremental searches. For example,
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the first 50 thread results can be displayed with
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.B "\-\-first=0 \-\-max\-threads=50"
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and the next 50 could be displayed with
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.B "\-\-first=50 \-\-max\-threads=50"
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etc.
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.TP
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.BR \-\-sort= ( newest\-first | oldest\-first )
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This option can be used to present results in either chronological order
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10
notmuch.c
10
notmuch.c
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@ -162,16 +162,6 @@ command_t commands[] = {
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"\n"
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"\t\tSupported options for search include:\n"
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"\n"
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"\t\t--max-threads=<value>\n"
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"\n"
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"\t\t\tRestricts displayed search results to a subset\n"
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"\t\t\tof the results that would match the terms.\n"
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"\n"
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"\t\t--first=<value>\n"
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"\n"
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"\t\t\tOmits the first <value> threads from the search\n"
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"\t\t\tresults that would otherwise be displayed.\n"
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"\n"
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"\t\t--sort=(newest-first|oldest-first)\n"
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"\n"
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"\t\t\tPresent results in either chronological order\n"
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