[tracker/wip/carlosg/tracker-3.0-api-breaks: 18/56] libtracker-sparql: Export TrackerNotifierEventCache for implementations

[Carlos Garnacho <carlosg src gnome org>]

commit 538b4faaf8eba2cabe5b154da0130807a4c8f8f4
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Dec 20 18:15:34 2019 +0100

    libtracker-sparql: Export TrackerNotifierEventCache for implementations
    
    This API is private, expected to be used across implementations of
    TrackerSparqlConnection/TrackerNotifier.

 src/libtracker-sparql/tracker-notifier-private.h | 43 ++++++++++++++++++++++++
 src/libtracker-sparql/tracker-notifier.c         | 43 +++++++++++++++---------
 2 files changed, 70 insertions(+), 16 deletions(-)
---
diff --git a/src/libtracker-sparql/tracker-notifier-private.h 
b/src/libtracker-sparql/tracker-notifier-private.h
new file mode 100644
index 000000000..9d019f6ca
--- /dev/null
+++ b/src/libtracker-sparql/tracker-notifier-private.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ *
+ * Author: Carlos Garnacho <carlosg gnome org>
+ */
+
+#ifndef __TRACKER_NOTIFIER_PRIVATE_H__
+#define __TRACKER_NOTIFIER_PRIVATE_H__
+
+#include "tracker-notifier.h"
+
+typedef struct _TrackerNotifierEventCache TrackerNotifierEventCache;
+
+TrackerNotifierEventCache * _tracker_notifier_event_cache_new (TrackerNotifier *notifier,
+                                                               const gchar     *service,
+                                                               const gchar     *graph);
+void _tracker_notifier_event_cache_free (TrackerNotifierEventCache *event_cache);
+
+gpointer _tracker_notifier_get_connection (TrackerNotifier *notifier);
+
+void
+_tracker_notifier_event_cache_push_event (TrackerNotifierEventCache *cache,
+                                          gint64                     id,
+                                          TrackerNotifierEventType   event_type);
+
+void _tracker_notifier_event_cache_flush_events (TrackerNotifierEventCache *cache);
+
+#endif /* __TRACKER_NOTIFIER_PRIVATE_H__ */
diff --git a/src/libtracker-sparql/tracker-notifier.c b/src/libtracker-sparql/tracker-notifier.c
index a532275a5..2ee9e2d63 100644
--- a/src/libtracker-sparql/tracker-notifier.c
+++ b/src/libtracker-sparql/tracker-notifier.c
@@ -66,6 +66,7 @@
 #include "config.h"
 
 #include "tracker-notifier.h"
+#include "tracker-notifier-private.h"
 #include "tracker-sparql-enum-types.h"
 #include "tracker-generated-no-checks.h"
 #include <libtracker-common/tracker-common.h>
@@ -175,10 +176,10 @@ compare_event_cb (gconstpointer a,
        return event1->id - event2->id;
 }
 
-static TrackerNotifierEventCache *
-tracker_notifier_event_cache_new (TrackerNotifier *notifier,
-                                  const gchar     *service,
-                                  const gchar     *graph)
+TrackerNotifierEventCache *
+_tracker_notifier_event_cache_new (TrackerNotifier *notifier,
+                                   const gchar     *service,
+                                   const gchar     *graph)
 {
        TrackerNotifierEventCache *event_cache;
 
@@ -191,8 +192,8 @@ tracker_notifier_event_cache_new (TrackerNotifier *notifier,
        return event_cache;
 }
 
-static void
-tracker_notifier_event_cache_free (TrackerNotifierEventCache *event_cache)
+void
+_tracker_notifier_event_cache_free (TrackerNotifierEventCache *event_cache)
 {
        g_sequence_free (event_cache->sequence);
        g_object_unref (event_cache->notifier);
@@ -230,10 +231,10 @@ tracker_notifier_event_cache_get_event (TrackerNotifierEventCache *cache,
        return event;
 }
 
-static void
-tracker_notifier_event_cache_push_event (TrackerNotifierEventCache *cache,
-                                         gint64                     id,
-                                         TrackerNotifierEventType   event_type)
+void
+_tracker_notifier_event_cache_push_event (TrackerNotifierEventCache *cache,
+                                          gint64                     id,
+                                          TrackerNotifierEventType   event_type)
 {
        TrackerNotifierEvent *event;
 
@@ -251,7 +252,7 @@ handle_events (TrackerNotifier           *notifier,
        gint32 type, resource;
 
        while (g_variant_iter_loop (iter, "(ii)", &type, &resource))
-               tracker_notifier_event_cache_push_event (cache, resource, type);
+               _tracker_notifier_event_cache_push_event (cache, resource, type);
 }
 
 static GPtrArray *
@@ -390,8 +391,8 @@ tracker_notifier_query_extra_info (TrackerNotifier *notifier,
        g_object_unref (cursor);
 }
 
-static void
-tracker_notifier_event_cache_flush_events (TrackerNotifierEventCache *cache)
+void
+_tracker_notifier_event_cache_flush_events (TrackerNotifierEventCache *cache)
 {
        TrackerNotifier *notifier = cache->notifier;
        TrackerNotifierPrivate *priv = tracker_notifier_get_instance_private (notifier);
@@ -426,14 +427,14 @@ graph_updated_cb (GDBusConnection *connection,
        g_variant_get (parameters, "(&sa(ii))", &graph, &events);
 
        service = g_strdup_printf ("dbus:%s", sender_name);
-       cache = tracker_notifier_event_cache_new (notifier, sender_name, graph);
+       cache = _tracker_notifier_event_cache_new (notifier, sender_name, graph);
        g_free (service);
 
        handle_events (notifier, cache, events);
        g_variant_iter_free (events);
 
-       tracker_notifier_event_cache_flush_events (cache);
-       tracker_notifier_event_cache_free (cache);
+       _tracker_notifier_event_cache_flush_events (cache);
+       _tracker_notifier_event_cache_free (cache);
 }
 
 static void
@@ -613,6 +614,16 @@ tracker_notifier_signal_unsubscribe (TrackerNotifier *notifier,
        g_hash_table_remove (priv->subscriptions, GUINT_TO_POINTER (handler_id));
 }
 
+gpointer
+_tracker_notifier_get_connection (TrackerNotifier *notifier)
+{
+       TrackerNotifierPrivate *priv;
+
+       priv = tracker_notifier_get_instance_private (notifier);
+
+       return priv->connection;
+}
+
 /**
  * tracker_notifier_event_get_event_type:
  * @event: A #TrackerNotifierEvent