xref: /aosp_15_r20/external/cronet/base/task/default_delayed_task_handle_delegate.cc (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b) 
1 // Copyright 2021 The Chromium Authors
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 "base/task/default_delayed_task_handle_delegate.h"
6 
7 #include <utility>
8 
9 #include "base/functional/bind.h"
10 
11 namespace base {
12 
13 DefaultDelayedTaskHandleDelegate::DefaultDelayedTaskHandleDelegate() = default;
14 
15 DefaultDelayedTaskHandleDelegate::~DefaultDelayedTaskHandleDelegate() = default;
16 
IsValid() const17 bool DefaultDelayedTaskHandleDelegate::IsValid() const {
18   return weak_ptr_factory_.HasWeakPtrs();
19 }
20 
CancelTask()21 void DefaultDelayedTaskHandleDelegate::CancelTask() {
22   weak_ptr_factory_.InvalidateWeakPtrs();
23 }
24 
BindCallback(OnceClosure callback)25 OnceClosure DefaultDelayedTaskHandleDelegate::BindCallback(
26     OnceClosure callback) {
27   DCHECK(!IsValid());
28   return BindOnce(&DefaultDelayedTaskHandleDelegate::RunTask,
29                   weak_ptr_factory_.GetWeakPtr(), std::move(callback));
30 }
31 
RunTask(OnceClosure user_task)32 void DefaultDelayedTaskHandleDelegate::RunTask(OnceClosure user_task) {
33   // Invalidate the weak pointer first so that the task handle is considered
34   // invalid while running the task.
35   weak_ptr_factory_.InvalidateWeakPtrs();
36   std::move(user_task).Run();
37 }
38 
39 }  // namespace base
40