1 files changed, 41 insertions, 0 deletions
diff --git a/xpcom/threads/nsIIncrementalRunnable.h b/xpcom/threads/nsIIncrementalRunnable.h
new file mode 100644
index 0000000000..526bc165ed
--- /dev/null
+++ b/xpcom/threads/nsIIncrementalRunnable.h
@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsIIncrementalRunnable_h__
+#define nsIIncrementalRunnable_h__
+
+#include "nsISupports.h"
+#include "mozilla/TimeStamp.h"
+
+#define NS_IINCREMENTALRUNNABLE_IID \
+{ 0x688be92e, 0x7ade, 0x4fdc, \
+{ 0x9d, 0x83, 0x74, 0xcb, 0xef, 0xf4, 0xa5, 0x2c } }
+
+
+/**
+ * A task interface for tasks that can schedule their work to happen
+ * in increments bounded by a deadline.
+ */
+class nsIIncrementalRunnable : public nsISupports
+{
+public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IINCREMENTALRUNNABLE_IID)
+
+  /**
+   * Notify the task of a point in time in the future when the task
+   * should stop executing.
+   */
+  virtual void SetDeadline(mozilla::TimeStamp aDeadline) = 0;
+
+protected:
+  nsIIncrementalRunnable() { }
+  virtual ~nsIIncrementalRunnable() {}
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsIIncrementalRunnable,
+                              NS_IINCREMENTALRUNNABLE_IID)
+
+#endif // nsIIncrementalRunnable_h__