| // Copyright 2014 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. |
| |
| module mojo; |
| |
| // A surface ID is composed of two parts, a local part and a namespace. The |
| // local part is allocated by the client using any scheme that avoids |
| // duplicates. The namespace is allocated by the service and will be different |
| // for each client (aka each connection to mojo.Surface). |
| // |
| // The special id_namespace value 0 is equivalent to the namespace of the |
| // client. This can be used to create, destroy and submit frames to |
| // surfaces before learning the namespace and to reference other surfaces |
| // owned by the same client. The actual id namespace must be used to pass |
| // surface ids to other clients for them to reference. |
| struct SurfaceId { |
| uint32 local; |
| uint32 id_namespace; |
| }; |
