source3/rpc_server/mdssvc/mdssvc_tracker.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Main metadata server / Spotlight routines / Tracker backend
   4
   5    Copyright (C) Ralph Boehme 2019
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 /* allow building with --enable-developer */
  22 #pragma GCC diagnostic push
  23 #pragma GCC diagnostic ignored "-Wcast-qual"
  24 #include <gio/gio.h>
  25 #include <tracker-sparql.h>
  26 #pragma GCC diagnostic pop
  27
  28 /* Global */
  29 struct mdssvc_tracker_ctx {
  30         struct mdssvc_ctx *mdssvc_ctx;
  31         GMainContext *gmain_ctx;
  32         struct tevent_glib_glue *glue;
  33 };
  34
  35 /* Per tree connect state */
  36 struct mds_tracker_ctx {
  37         struct mds_ctx *mds_ctx;
  38         GCancellable *gcancellable;
  39         bool async_pending;
  40         TrackerSparqlConnection *tracker_con;
  41 };
  42
  43 /* Per query */
  44 struct sl_tracker_query {
  45         struct sl_query *slq;
  46         const char *path_scope;
  47         const char *sparql_query;
  48
  49         /*
  50          * Notes on the lifetime of cursor: we hold a reference on the object
  51          * and have to call g_object_unref(cursor) at the right place. This is
  52          * either done in the talloc destructor on a struct sl_tracker_query
  53          * talloc object when there are no tracker glib async requests
  54          * running. Or in the glib callback after cancelling the glib async
  55          * request.
  56          */
  57         TrackerSparqlCursor *cursor;
  58         GCancellable *gcancellable;
  59         bool async_pending;
  60 };
  61
  62 extern struct mdssvc_backend mdsscv_backend_tracker;