| // Copyright 2013 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. |
| |
| #ifndef COMPONENTS_VIZ_COMMON_RESOURCES_RELEASE_CALLBACK_H_ |
| #define COMPONENTS_VIZ_COMMON_RESOURCES_RELEASE_CALLBACK_H_ |
| |
| #include "base/callback.h" |
| |
| namespace gpu { |
| struct SyncToken; |
| } // namespace gpu |
| |
| namespace viz { |
| |
| // The callback type used to return ownership of a resource. |
| // The |sync_token| is a synchronization point that should be waited for before |
| // using the resource. Failing to do so may cause corruption as the resource may |
| // still be being acted on by the system releasing ownership until that point. |
| // When |is_lost| is true, the resource is declared as unable to be returned, |
| // and the receiver of this callback may not reliably reuse the resource and |
| // guarantee any correctness. The receiver of this callback may only delete the |
| // resource when |is_lost| is set. |
| using ReleaseCallback = |
| base::OnceCallback<void(const gpu::SyncToken& sync_token, bool is_lost)>; |
| |
| } // namespace viz |
| |
| #endif // COMPONENTS_VIZ_COMMON_RESOURCES_RELEASE_CALLBACK_H_ |
