[tracker-miners/wip/carlosg/dbus-api-changes: 4/4] tracker-index: Make service autoclose if there's no watched files

[Carlos Garnacho <carlosg src gnome org>]

commit 8b34e86d6543d55c9ae9cf197d5c66c2a656d69f
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sun Jun 21 10:55:07 2020 +0200

    tracker-index: Make service autoclose if there's no watched files
    
    This service is unnecessary if there's no current requests, we can
    close it and trust on DBus autostart to handle future requests.

 src/tracker-index/tracker-main.c              |  9 +++++++++
 src/tracker-index/tracker-miner-files-index.c | 17 +++++++++++++++++
 2 files changed, 26 insertions(+)
---
diff --git a/src/tracker-index/tracker-main.c b/src/tracker-index/tracker-main.c
index 0004ef447..d68ddb10d 100644
--- a/src/tracker-index/tracker-main.c
+++ b/src/tracker-index/tracker-main.c
@@ -103,6 +103,13 @@ initialize_signal_handler (void)
 #endif /* G_OS_WIN32 */
 }
 
+static void
+files_index_close_cb (GMainLoop *main_loop)
+{
+       g_debug ("No further watched folders, closing");
+       g_main_loop_quit (main_loop);
+}
+
 int
 main (gint argc, gchar *argv[])
 {
@@ -153,6 +160,8 @@ main (gint argc, gchar *argv[])
        main_loop = g_main_loop_new (NULL, FALSE);
 
        index = tracker_miner_files_index_new ();
+       g_signal_connect (index, "close",
+                         G_CALLBACK (files_index_close_cb), main_loop);
 
        /* Request DBus name */
        if (!tracker_dbus_request_name (connection,
diff --git a/src/tracker-index/tracker-miner-files-index.c b/src/tracker-index/tracker-miner-files-index.c
index 7508bbe42..c428e68a5 100644
--- a/src/tracker-index/tracker-miner-files-index.c
+++ b/src/tracker-index/tracker-miner-files-index.c
@@ -51,6 +51,13 @@ enum {
        PROP_FILES_MINER
 };
 
+enum {
+       CLOSE,
+       N_SIGNALS
+};
+
+static guint signals[N_SIGNALS] = { 0 };
+
 #define TRACKER_MINER_FILES_INDEX_GET_PRIVATE(o) (tracker_miner_files_index_get_instance_private 
(TRACKER_MINER_FILES_INDEX (o)))
 
 static void     index_finalize            (GObject              *object);
@@ -96,6 +103,13 @@ tracker_miner_files_index_class_init (TrackerMinerFilesIndexClass *klass)
        object_class = G_OBJECT_CLASS (klass);
 
        object_class->finalize = index_finalize;
+
+       signals[CLOSE] =
+               g_signal_new ("close",
+                             G_OBJECT_CLASS_TYPE (object_class),
+                             G_SIGNAL_RUN_LAST, 0,
+                             NULL, NULL, NULL,
+                             G_TYPE_NONE, 0);
 }
 
 static void
@@ -187,6 +201,9 @@ peer_listener_unwatch_file (TrackerMinerFilesPeerListener *listener,
        }
 
        update_indexed_files (index);
+
+       if (priv->indexed_files->len == 0)
+               g_signal_emit (index, signals[CLOSE], 0);
 }
 
 static void