blob: 053b047385fa02aadf3767e0115f774ce18c1929 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
// Copyright 2011 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.
#include "base/single_thread_task_runner.h"
#include "cc/trees/blocking_task_runner.h"
#include "cc/trees/task_runner_provider.h"
namespace cc {
base::SingleThreadTaskRunner* TaskRunnerProvider::MainThreadTaskRunner() const {
return main_task_runner_.get();
}
bool TaskRunnerProvider::HasImplThread() const {
return !!impl_task_runner_.get();
}
base::SingleThreadTaskRunner* TaskRunnerProvider::ImplThreadTaskRunner() const {
return impl_task_runner_.get();
}
bool TaskRunnerProvider::IsMainThread() const {
#if DCHECK_IS_ON()
if (impl_thread_is_overridden_)
return false;
bool is_main_thread = base::PlatformThread::CurrentId() == main_thread_id_;
if (is_main_thread && main_task_runner_.get()) {
DCHECK(main_task_runner_->BelongsToCurrentThread());
}
return is_main_thread;
#else
return true;
#endif
}
bool TaskRunnerProvider::IsImplThread() const {
#if DCHECK_IS_ON()
if (impl_thread_is_overridden_)
return true;
if (!impl_task_runner_.get())
return false;
return impl_task_runner_->BelongsToCurrentThread();
#else
return true;
#endif
}
#if DCHECK_IS_ON()
void TaskRunnerProvider::SetCurrentThreadIsImplThread(bool is_impl_thread) {
impl_thread_is_overridden_ = is_impl_thread;
}
#endif
bool TaskRunnerProvider::IsMainThreadBlocked() const {
#if DCHECK_IS_ON()
return is_main_thread_blocked_;
#else
return true;
#endif
}
#if DCHECK_IS_ON()
void TaskRunnerProvider::SetMainThreadBlocked(bool is_main_thread_blocked) {
is_main_thread_blocked_ = is_main_thread_blocked;
}
#endif
TaskRunnerProvider::TaskRunnerProvider(
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner)
#if !DCHECK_IS_ON()
: main_task_runner_(main_task_runner),
impl_task_runner_(impl_task_runner),
blocking_main_thread_task_runner_(
BlockingTaskRunner::Create(main_task_runner)) {
#else
: main_task_runner_(main_task_runner),
impl_task_runner_(impl_task_runner),
blocking_main_thread_task_runner_(
BlockingTaskRunner::Create(main_task_runner)),
main_thread_id_(base::PlatformThread::CurrentId()),
impl_thread_is_overridden_(false),
is_main_thread_blocked_(false) {
#endif
}
TaskRunnerProvider::~TaskRunnerProvider() {
DCHECK(IsMainThread());
}
} // namespace cc
|
