1 files changed, 43 insertions, 0 deletions
diff --git a/gfx/ipc/VsyncIOThreadHolder.h b/gfx/ipc/VsyncIOThreadHolder.h
new file mode 100644
index 0000000000..8158834cab
--- /dev/null
+++ b/gfx/ipc/VsyncIOThreadHolder.h
@@ -0,0 +1,43 @@
+/* -*- 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 mozilla_gfx_ipc_VsyncIOThreadHolder_h
+#define mozilla_gfx_ipc_VsyncIOThreadHolder_h
+
+#include "mozilla/RefPtr.h"
+#include "nsIThread.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla {
+namespace gfx {
+
+class VsyncIOThreadHolder final {
+ public:
+  VsyncIOThreadHolder();
+
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VsyncIOThreadHolder)
+
+  bool Start();
+
+  RefPtr<nsIThread> GetThread() const;
+
+  bool IsOnCurrentThread() const { return mThread->IsOnCurrentThread(); }
+
+  void Dispatch(already_AddRefed<nsIRunnable> task) {
+    mThread->Dispatch(std::move(task), NS_DISPATCH_NORMAL);
+  }
+
+ private:
+  ~VsyncIOThreadHolder();
+
+ private:
+  RefPtr<nsIThread> mThread;
+};
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif  // mozilla_gfx_ipc_VsyncIOThreadHolder_h