| // Copyright (c) 2012 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 BASE_CRITICAL_CLOSURE_H_ |
| #define BASE_CRITICAL_CLOSURE_H_ |
| |
| #include "base/callback.h" |
| |
| namespace base { |
| |
| // Returns a closure that will continue to run for a period of time when the |
| // application goes to the background if possible on platforms where |
| // applications don't execute while backgrounded, otherwise the original task is |
| // returned. |
| // |
| // Example: |
| // file_message_loop_proxy_->PostTask( |
| // FROM_HERE, |
| // MakeCriticalClosure(base::Bind(&WriteToDiskTask, path_, data))); |
| // |
| // Note new closures might be posted in this closure. If the new closures need |
| // background running time, |MakeCriticalClosure| should be applied on them |
| // before posting. |
| #if defined(OS_IOS) |
| base::Closure MakeCriticalClosure(const base::Closure& closure); |
| #else |
| inline base::Closure MakeCriticalClosure(const base::Closure& closure) { |
| // No-op for platforms where the application does not need to acquire |
| // background time for closures to finish when it goes into the background. |
| return closure; |
| } |
| #endif // !defined(OS_IOS) |
| |
| } // namespace base |
| |
| #endif // BASE_CRITICAL_CLOSURE_H_ |
