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Unified Diff: mojo/services/vsync/interfaces/vsync.mojom

Issue 1458453003: Add mojo service to get notified of vsync. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Follow review Created 5 years, 1 month ago
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Index: mojo/services/vsync/interfaces/vsync.mojom
diff --git a/mojo/services/vsync/interfaces/vsync.mojom b/mojo/services/vsync/interfaces/vsync.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..5cc66a1a34483eebfe20ee06f5d5354b033947e1
--- /dev/null
+++ b/mojo/services/vsync/interfaces/vsync.mojom
@@ -0,0 +1,13 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+[DartPackage="mojo_services"]
+module vsync;
+
+interface VSyncProvider {
+ // Waits for the next vsync and returns its timestamp once it happens. The
+ // timestamps can only be compared with other calls of this method.
+ // Only one callback can be parked at a given time.
+ AwaitVSync() => (int64 time_stamp);
+};
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