[glib/wip/hadess/add-memory-monitor: 16/16] gio: Add stub test program for GMemoryMonitor

[Bastien Nocera <hadess src gnome org>]

commit 762ce0bc55817f22d5e2cfac8b53fb86263e78be
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Sep 19 16:21:23 2019 +0200

    gio: Add stub test program for GMemoryMonitor
    
    "memory-monitor --watch" will watch over any events coming from either
    low-memory-monitor or the portal.

 gio/tests/memory-monitor.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++
 gio/tests/meson.build      |  1 +
 2 files changed, 67 insertions(+)
---
diff --git a/gio/tests/memory-monitor.c b/gio/tests/memory-monitor.c
new file mode 100644
index 000000000..6822b88bf
--- /dev/null
+++ b/gio/tests/memory-monitor.c
@@ -0,0 +1,66 @@
+/* GIO - GLib Input, Output and Streaming Library
+ *
+ * Copyright 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <gio/gio.h>
+
+static char *levels_str[] = {
+       "low",
+       "medium",
+       "critical"
+};
+
+static void
+warning_cb (GMemoryMonitor *m,
+           GMemoryMonitorWarningLevel level)
+{
+  g_debug ("Warning level: %s (%d)\n", levels_str[level], level);
+}
+
+static void
+do_watch_memory (void)
+{
+  GMemoryMonitor *m;
+  GMainLoop *loop;
+
+  m = g_memory_monitor_get_default ();
+  g_signal_connect (G_OBJECT (m), "low-memory-warning",
+                   G_CALLBACK (warning_cb), NULL);
+
+  loop = g_main_loop_new (NULL, TRUE);
+  g_main_loop_run (loop);
+}
+
+int
+main (int argc, char **argv)
+{
+  int ret;
+
+  if (argc == 2 && !strcmp (argv[1], "--watch"))
+    {
+      do_watch_memory ();
+      return 0;
+    }
+
+  g_test_init (&argc, &argv, NULL);
+
+  /* FIXME implement */
+
+  ret = g_test_run ();
+
+  return ret;
+}
diff --git a/gio/tests/meson.build b/gio/tests/meson.build
index 8b5d105f5..a60643255 100644
--- a/gio/tests/meson.build
+++ b/gio/tests/meson.build
@@ -54,6 +54,7 @@ gio_tests = {
   'io-stream' : {},
   'memory-input-stream' : {},
   'memory-output-stream' : {},
+  'memory-monitor' : {},
   'mount-operation' : {},
   'network-address' : {'extra_sources': ['mock-resolver.c']},
   'network-monitor' : {},