context: new '--test-no-auto-scan' to avoid automatic scanning for devices

data/tests/org.freedesktop.ModemManager1.service.in

@@ -2,4 +2,4 @@
 
 [D-BUS Service]
 Name=org.freedesktop.ModemManager1
-Exec=@abs_top_builddir@/src/ModemManager --test-session
+Exec=@abs_top_builddir@/src/ModemManager --test-session --test-no-auto-scan

src/main.c

@@ -62,7 +62,9 @@ bus_acquired_cb (GDBusConnection *connection,
 
     /* Create Manager object */
     g_assert (!manager);
-    manager = mm_manager_new (connection, &error);
+    manager = mm_manager_new (connection,
+                              !mm_context_get_test_no_auto_scan (),
+                              &error);
     if (!manager) {
         mm_warn ("Could not create manager: %s", error->message);
         g_error_free (error);

src/mm-context.c

@@ -69,9 +69,11 @@ mm_context_get_relative_timestamps (void)
 /* Test context */
 
 static gboolean test_session;
+static gboolean test_no_auto_scan;
 
 static const GOptionEntry test_entries[] = {
     { "test-session", 0, 0, G_OPTION_ARG_NONE, &test_session, "Run in session DBus", NULL },
+    { "test-no-auto-scan", 0, 0, G_OPTION_ARG_NONE, &test_no_auto_scan, "Don't auto-scan looking for devices", NULL },
     { NULL }
 };
 
@@ -95,6 +97,12 @@ mm_context_get_test_session (void)
     return test_session;
 }
 
+gboolean
+mm_context_get_test_no_auto_scan (void)
+{
+    return test_no_auto_scan;
+}
+
 /*****************************************************************************/
 
 void

src/mm-context.h

@@ -29,5 +29,6 @@ gboolean     mm_context_get_relative_timestamps (void);
 
 /* Testing support */
 gboolean     mm_context_get_test_session        (void);
+gboolean     mm_context_get_test_no_auto_scan   (void);
 
 #endif /* MM_CONTEXT_H */

src/mm-manager.c

@@ -42,12 +42,15 @@ G_DEFINE_TYPE_EXTENDED (MMManager, mm_manager, MM_GDBUS_TYPE_ORG_FREEDESKTOP_MOD
 enum {
     PROP_0,
     PROP_CONNECTION,
+    PROP_AUTO_SCAN,
     LAST_PROP
 };
 
 struct _MMManagerPrivate {
     /* The connection to the system bus */
     GDBusConnection *connection;
+    /* Whether auto-scanning is enabled */
+    gboolean auto_scan;
     /* The UDev client */
     GUdevClient *udev;
     /* The authorization provider */
@@ -453,6 +456,9 @@ mm_manager_start (MMManager *manager,
     g_return_if_fail (manager != NULL);
     g_return_if_fail (MM_IS_MANAGER (manager));
 
+    if (!manager->priv->auto_scan && !manual_scan)
+        return;
+
     mm_dbg ("Starting %s device scan...", manual_scan ? "manual" : "automatic");
 
     devices = g_udev_client_query_by_subsystem (manager->priv->udev, "tty");
@@ -677,6 +683,7 @@ handle_scan_devices (MmGdbusOrgFreedesktopModemManager1 *manager,
 
 MMManager *
 mm_manager_new (GDBusConnection *connection,
+                gboolean auto_scan,
                 GError **error)
 {
     g_return_val_if_fail (G_IS_DBUS_CONNECTION (connection), NULL);
@@ -685,6 +692,7 @@ mm_manager_new (GDBusConnection *connection,
                            NULL, /* cancellable */
                            error,
                            MM_MANAGER_CONNECTION, connection,
+                           MM_MANAGER_AUTO_SCAN, auto_scan,
                            NULL);
 }
 
@@ -702,6 +710,9 @@ set_property (GObject *object,
             g_object_unref (priv->connection);
         priv->connection = g_value_dup_object (value);
         break;
+    case PROP_AUTO_SCAN:
+        priv->auto_scan = g_value_get_boolean (value);
+        break;
     default:
         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
         break;
@@ -720,6 +731,9 @@ get_property (GObject *object,
     case PROP_CONNECTION:
         g_value_set_object (value, priv->connection);
         break;
+    case PROP_AUTO_SCAN:
+        g_value_set_boolean (value, priv->auto_scan);
+        break;
     default:
         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
         break;
@@ -746,7 +760,9 @@ mm_manager_init (MMManager *manager)
 
     /* Setup UDev client */
     priv->udev = g_udev_client_new (subsys);
-    g_signal_connect (priv->udev, "uevent", G_CALLBACK (handle_uevent), manager);
+
+    /* By default, enable autoscan */
+    priv->auto_scan = TRUE;
 
     /* Setup Object Manager Server */
     priv->object_manager = g_dbus_object_manager_server_new (MM_DBUS_PATH);
@@ -769,6 +785,10 @@ initable_init (GInitable *initable,
 {
     MMManagerPrivate *priv = MM_MANAGER (initable)->priv;
 
+    /* If autoscan enabled, list for udev events */
+    if (priv->auto_scan)
+        g_signal_connect (priv->udev, "uevent", G_CALLBACK (handle_uevent), initable);
+
     /* Create plugin manager */
     priv->plugin_manager = mm_plugin_manager_new (error);
     if (!priv->plugin_manager)
@@ -836,6 +856,7 @@ mm_manager_class_init (MMManagerClass *manager_class)
     object_class->finalize = finalize;
 
     /* Properties */
+
     g_object_class_install_property
         (object_class, PROP_CONNECTION,
          g_param_spec_object (MM_MANAGER_CONNECTION,
@@ -843,4 +864,12 @@ mm_manager_class_init (MMManagerClass *manager_class)
                               "GDBus connection to the system bus.",
                               G_TYPE_DBUS_CONNECTION,
                               G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+
+    g_object_class_install_property
+        (object_class, PROP_AUTO_SCAN,
+         g_param_spec_boolean (MM_MANAGER_AUTO_SCAN,
+                               "Auto scan",
+                               "Automatically look for new devices",
+                               TRUE,
+                               G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 }

src/mm-manager.h

@@ -31,6 +31,7 @@
 #define MM_MANAGER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), MM_TYPE_MANAGER, MMManagerClass))
 
 #define MM_MANAGER_CONNECTION "connection" /* Construct-only */
+#define MM_MANAGER_AUTO_SCAN  "auto-scan"  /* Construct-only */
 
 typedef struct _MMManagerPrivate MMManagerPrivate;
 
@@ -46,6 +47,7 @@ typedef struct {
 GType mm_manager_get_type (void);
 
 MMManager       *mm_manager_new         (GDBusConnection *bus,
+                                         gboolean auto_scan,
                                          GError **error);
 
 void             mm_manager_start       (MMManager *manager,