Add internal functions to search for alternate doc types

[notmuch] / lib / query.cc

diff --git a/lib/query.cc b/lib/query.cc
index f53215dbaf5902fca51d3c7dd5ac3628802ded00..77a7926ba80d6f13d1ca62ff7827bd18c9ef9c45 100644 (file)
--- a/lib/query.cc
+++ b/lib/query.cc
@@ -98,7 +98,7 @@ notmuch_query_create (notmuch_database_t *notmuch,
 }
 
 const char *
-notmuch_query_get_query_string (notmuch_query_t *query)
+notmuch_query_get_query_string (const notmuch_query_t *query)
 {
     return query->query_string;
 }
@@ -117,7 +117,7 @@ notmuch_query_set_sort (notmuch_query_t *query, notmuch_sort_t sort)
 }
 
 notmuch_sort_t
-notmuch_query_get_sort (notmuch_query_t *query)
+notmuch_query_get_sort (const notmuch_query_t *query)
 {
     return query->sort;
 }
@@ -186,6 +186,14 @@ notmuch_query_search_messages (notmuch_query_t *query)
 notmuch_status_t
 notmuch_query_search_messages_st (notmuch_query_t *query,
                                  notmuch_messages_t **out)
+{
+    return _notmuch_query_search_documents (query, "mail", out);
+}
+
+notmuch_status_t
+_notmuch_query_search_documents (notmuch_query_t *query,
+                                const char *type,
+                                notmuch_messages_t **out)
 {
     notmuch_database_t *notmuch = query->notmuch;
     const char *query_string = query->query_string;
@@ -208,7 +216,7 @@ notmuch_query_search_messages_st (notmuch_query_t *query,
        Xapian::Enquire enquire (*notmuch->xapian_db);
        Xapian::Query mail_query (talloc_asprintf (query, "%s%s",
                                                   _find_prefix ("type"),
-                                                  "mail"));
+                                                  type));
        Xapian::Query string_query, final_query, exclude_query;
        Xapian::MSet mset;
        Xapian::MSetIterator iterator;
@@ -541,8 +549,24 @@ notmuch_threads_destroy (notmuch_threads_t *threads)
     talloc_free (threads);
 }
 
-unsigned
+unsigned int
 notmuch_query_count_messages (notmuch_query_t *query)
+{
+    notmuch_status_t status;
+    unsigned int count;
+
+    status = notmuch_query_count_messages_st (query, &count);
+    return status ? 0 : count;
+}
+
+notmuch_status_t
+notmuch_query_count_messages_st (notmuch_query_t *query, unsigned *count_out)
+{
+    return _notmuch_query_count_documents (query, "mail", count_out);
+}
+
+notmuch_status_t
+_notmuch_query_count_documents (notmuch_query_t *query, const char *type, unsigned *count_out)
 {
     notmuch_database_t *notmuch = query->notmuch;
     const char *query_string = query->query_string;
@@ -552,7 +576,7 @@ notmuch_query_count_messages (notmuch_query_t *query)
        Xapian::Enquire enquire (*notmuch->xapian_db);
        Xapian::Query mail_query (talloc_asprintf (query, "%s%s",
                                                   _find_prefix ("type"),
-                                                  "mail"));
+                                                  type));
        Xapian::Query string_query, final_query, exclude_query;
        Xapian::MSet mset;
        unsigned int flags = (Xapian::QueryParser::FLAG_BOOLEAN |
@@ -605,35 +629,44 @@ notmuch_query_count_messages (notmuch_query_t *query)
                               "Query string was: %s\n",
                               error.get_msg().c_str(),
                               query->query_string);
-
+       return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
     }
 
-    return count;
+    *count_out = count;
+    return NOTMUCH_STATUS_SUCCESS;
 }
 
 unsigned
 notmuch_query_count_threads (notmuch_query_t *query)
+{
+    notmuch_status_t status;
+    unsigned int count;
+
+    status = notmuch_query_count_threads_st (query, &count);
+    return status ? 0 : count;
+}
+
+notmuch_status_t
+notmuch_query_count_threads_st (notmuch_query_t *query, unsigned *count)
 {
     notmuch_messages_t *messages;
     GHashTable *hash;
-    unsigned int count;
     notmuch_sort_t sort;
-    notmuch_status_t status;
+    notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
 
     sort = query->sort;
     query->sort = NOTMUCH_SORT_UNSORTED;
-    status = notmuch_query_search_messages_st (query, &messages);
-    if (status)
-       return 0;
-
+    ret = notmuch_query_search_messages_st (query, &messages);
+    if (ret)
+       return ret;
     query->sort = sort;
     if (messages == NULL)
-       return 0;
+       return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
 
     hash = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, NULL);
     if (hash == NULL) {
        talloc_free (messages);
-       return 0;
+       return NOTMUCH_STATUS_OUT_OF_MEMORY;
     }
 
     while (notmuch_messages_valid (messages)) {
@@ -642,7 +675,7 @@ notmuch_query_count_threads (notmuch_query_t *query)
        char *thread_id_copy = talloc_strdup (messages, thread_id);
        if (unlikely (thread_id_copy == NULL)) {
            notmuch_message_destroy (message);
-           count = 0;
+           ret = NOTMUCH_STATUS_OUT_OF_MEMORY;
            goto DONE;
        }
        g_hash_table_insert (hash, thread_id_copy, NULL);
@@ -650,17 +683,17 @@ notmuch_query_count_threads (notmuch_query_t *query)
        notmuch_messages_move_to_next (messages);
     }
 
-    count = g_hash_table_size (hash);
+    *count = g_hash_table_size (hash);
 
   DONE:
     g_hash_table_unref (hash);
     talloc_free (messages);
 
-    return count;
+    return ret;
 }
 
 notmuch_database_t *
-notmuch_query_get_database (notmuch_query_t *query)
+notmuch_query_get_database (const notmuch_query_t *query)
 {
     return query->notmuch;
 }