1 files changed, 55 insertions, 0 deletions
diff --git a/app/core/gimpwaitable.h b/app/core/gimpwaitable.h
new file mode 100644
index 0000000..b85bece
--- /dev/null
+++ b/app/core/gimpwaitable.h
@@ -0,0 +1,55 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimpwaitable.h
+ * Copyright (C) 2018 Ell
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_WAITABLE_H__
+#define __GIMP_WAITABLE_H__
+
+
+#define GIMP_TYPE_WAITABLE               (gimp_waitable_get_type ())
+#define GIMP_IS_WAITABLE(obj)            (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_WAITABLE))
+#define GIMP_WAITABLE(obj)               (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_WAITABLE, GimpWaitable))
+#define GIMP_WAITABLE_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GIMP_TYPE_WAITABLE, GimpWaitableInterface))
+
+
+typedef struct _GimpWaitableInterface GimpWaitableInterface;
+
+struct _GimpWaitableInterface
+{
+  GTypeInterface base_iface;
+
+  /*  virtual functions  */
+  void       (* wait)       (GimpWaitable *waitable);
+  gboolean   (* try_wait)   (GimpWaitable *waitable);
+  gboolean   (* wait_until) (GimpWaitable *waitable,
+                             gint64        end_time);
+};
+
+
+GType      gimp_waitable_get_type   (void) G_GNUC_CONST;
+
+void       gimp_waitable_wait       (GimpWaitable *waitable);
+gboolean   gimp_waitable_try_wait   (GimpWaitable *waitable);
+gboolean   gimp_waitable_wait_until (GimpWaitable *waitable,
+                                     gint64        end_time);
+gboolean   gimp_waitable_wait_for   (GimpWaitable *waitable,
+                                     gint64        wait_duration);
+
+
+#endif  /* __GIMP_WAITABLE_H__ */