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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 module mojo; | 5 module mojo; |
6 | 6 |
7 // A surface ID is composed of two parts, a local part and a namespace. The | 7 // A surface ID is composed of two parts, a local part and a namespace. The |
8 // local part is allocated by the client using any scheme that avoids | 8 // local part is allocated by the client using any scheme that avoids |
9 // duplicates. The namespace is allocated by the service and will be different | 9 // duplicates. The namespace is allocated by the service and will be different |
10 // for each client (aka each connection to mojo.Surface). | 10 // for each client (aka each connection to mojo.Surface). |
11 // | 11 // |
12 // The special id_namespace value 0 is equivalent to the namespace of the | 12 // The special id_namespace value 0 is equivalent to the namespace of the |
13 // client. This can be used to create, destroy and submit frames to | 13 // client. This can be used to create, destroy and submit frames to |
14 // surfaces before learning the namespace and to reference other surfaces | 14 // surfaces before learning the namespace and to reference other surfaces |
15 // owned by the same client. The actual id namespace must be used to pass | 15 // owned by the same client. The actual id namespace must be used to pass |
16 // surface ids to other clients for them to reference. | 16 // surface ids to other clients for them to reference. |
17 struct SurfaceId { | 17 struct SurfaceId { |
18 uint32 local; | 18 uint32 local; |
19 uint32 id_namespace; | 19 uint32 id_namespace; |
20 }; | 20 }; |
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