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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "components/scheduler/promises/single_thread_promise_executor.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 |
| 9 namespace promise { |
| 10 namespace internal { |
| 11 |
| 12 SingleThreadPromiseExecutor::SingleThreadPromiseExecutor( |
| 13 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner) |
| 14 : task_runner_(task_runner) {} |
| 15 |
| 16 SingleThreadPromiseExecutor::~SingleThreadPromiseExecutor() {} |
| 17 |
| 18 void SingleThreadPromiseExecutor::StartResolveInternal(PromiseBase* promise) { |
| 19 PromiseExecutor::StartResolveInternal(promise); |
| 20 DispatchResolveImpl(); |
| 21 } |
| 22 |
| 23 void SingleThreadPromiseExecutor::ResolveImpl() { |
| 24 PromiseBase* ready_promise = GetNextReadyPromise(); |
| 25 if (!ready_promise) |
| 26 return; |
| 27 ResolvePromise(ready_promise); |
| 28 } |
| 29 |
| 30 void SingleThreadPromiseExecutor::DispatchResolveImpl() { |
| 31 task_runner_->PostTask(FROM_HERE, |
| 32 base::Bind(&SingleThreadPromiseExecutor::ResolveImpl, |
| 33 base::Unretained(this))); |
| 34 } |
| 35 |
| 36 bool SingleThreadPromiseExecutor::OnPromiseResolved(PromiseBase* promise) { |
| 37 if (PromiseExecutor::OnPromiseResolved(promise)) |
| 38 DispatchResolveImpl(); |
| 39 return false; |
| 40 } |
| 41 |
| 42 bool SingleThreadPromiseExecutor::OnPromiseRejected(PromiseBase* promise) { |
| 43 if (PromiseExecutor::OnPromiseRejected(promise)) |
| 44 DispatchResolveImpl(); |
| 45 return false; |
| 46 } |
| 47 |
| 48 } // namespace internal |
| 49 } // namespace promise |
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