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samba-mirror/source3/rpc_server/mdssvc/mdssvc_tracker.h
Ralph Boehme 1ef96e0907 s3-mdssvc: factor out Tracker backend logic
This moves all Tracker backend logic into a modularized component.

This should not result in any change in behaviour, it just paves the way
for adding additional backends. Currently the only available backend is
Gnome Tracker.

slq_destroy_send/recv is not needed anymore as the problem is solved now by
correctly checking if an async Tracker request was cancelled and we got
G_IO_ERROR_CANCELLED in tracker_con_cb() or tracker_query_cb() and avoid using
user_data in that the case.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-08-08 20:24:31 +00:00

63 lines
1.9 KiB
C

/*
Unix SMB/CIFS implementation.
Main metadata server / Spotlight routines / Tracker backend
Copyright (C) Ralph Boehme 2019
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* allow building with --enable-developer */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#include <gio/gio.h>
#include <tracker-sparql.h>
#pragma GCC diagnostic pop
/* Global */
struct mdssvc_tracker_ctx {
struct mdssvc_ctx *mdssvc_ctx;
GMainContext *gmain_ctx;
struct tevent_glib_glue *glue;
};
/* Per tree connect state */
struct mds_tracker_ctx {
struct mds_ctx *mds_ctx;
GCancellable *gcancellable;
bool async_pending;
TrackerSparqlConnection *tracker_con;
};
/* Per query */
struct sl_tracker_query {
struct sl_query *slq;
const char *path_scope;
const char *sparql_query;
/*
* Notes on the lifetime of cursor: we hold a reference on the object
* and have to call g_object_unref(cursor) at the right place. This is
* either done in the talloc destructor on a struct sl_tracker_query
* talloc object when there are no tracker glib async requests
* running. Or in the glib callback after cancelling the glib async
* request.
*/
TrackerSparqlCursor *cursor;
GCancellable *gcancellable;
bool async_pending;
};
extern struct mdssvc_backend mdsscv_backend_tracker;