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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
// Copyright 2016 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/task_scheduler/post_task.h"
#include <utility>
#include "base/logging.h"
#include "base/task_scheduler/scoped_set_task_priority_for_current_thread.h"
#include "base/task_scheduler/task_scheduler.h"
#include "base/threading/post_task_and_reply_impl.h"
namespace base {
namespace {
class PostTaskAndReplyWithTraitsTaskRunner
: public internal::PostTaskAndReplyImpl {
public:
explicit PostTaskAndReplyWithTraitsTaskRunner(const TaskTraits& traits)
: traits_(traits) {}
private:
bool PostTask(const Location& from_here, OnceClosure task) override {
PostTaskWithTraits(from_here, traits_, std::move(task));
return true;
}
const TaskTraits traits_;
};
// Returns TaskTraits based on |traits|. If TaskPriority hasn't been set
// explicitly in |traits|, the returned TaskTraits have the current
// TaskPriority.
TaskTraits GetTaskTraitsWithExplicitPriority(const TaskTraits& traits) {
if (traits.priority_set_explicitly())
return traits;
return TaskTraits::Override(traits,
{internal::GetTaskPriorityForCurrentThread()});
}
} // namespace
void PostTask(const Location& from_here, OnceClosure task) {
PostDelayedTask(from_here, std::move(task), TimeDelta());
}
void PostDelayedTask(const Location& from_here,
OnceClosure task,
TimeDelta delay) {
PostDelayedTaskWithTraits(from_here, TaskTraits(), std::move(task), delay);
}
void PostTaskAndReply(const Location& from_here,
OnceClosure task,
OnceClosure reply) {
PostTaskWithTraitsAndReply(from_here, TaskTraits(), std::move(task),
std::move(reply));
}
void PostTaskWithTraits(const Location& from_here,
const TaskTraits& traits,
OnceClosure task) {
PostDelayedTaskWithTraits(from_here, traits, std::move(task), TimeDelta());
}
void PostDelayedTaskWithTraits(const Location& from_here,
const TaskTraits& traits,
OnceClosure task,
TimeDelta delay) {
DCHECK(TaskScheduler::GetInstance())
<< "Ref. Prerequisite section of post_task.h.\n\n"
"Hint: if this is in a unit test, you're likely merely missing a "
"base::test::ScopedTaskEnvironment member in your fixture.\n";
TaskScheduler::GetInstance()->PostDelayedTaskWithTraits(
from_here, GetTaskTraitsWithExplicitPriority(traits), std::move(task),
std::move(delay));
}
void PostTaskWithTraitsAndReply(const Location& from_here,
const TaskTraits& traits,
OnceClosure task,
OnceClosure reply) {
PostTaskAndReplyWithTraitsTaskRunner(traits).PostTaskAndReply(
from_here, std::move(task), std::move(reply));
}
scoped_refptr<TaskRunner> CreateTaskRunnerWithTraits(const TaskTraits& traits) {
DCHECK(TaskScheduler::GetInstance())
<< "Ref. Prerequisite section of post_task.h.\n\n"
"Hint: if this is in a unit test, you're likely merely missing a "
"base::test::ScopedTaskEnvironment member in your fixture.\n";
return TaskScheduler::GetInstance()->CreateTaskRunnerWithTraits(
GetTaskTraitsWithExplicitPriority(traits));
}
scoped_refptr<SequencedTaskRunner> CreateSequencedTaskRunnerWithTraits(
const TaskTraits& traits) {
DCHECK(TaskScheduler::GetInstance())
<< "Ref. Prerequisite section of post_task.h.\n\n"
"Hint: if this is in a unit test, you're likely merely missing a "
"base::test::ScopedTaskEnvironment member in your fixture.\n";
return TaskScheduler::GetInstance()->CreateSequencedTaskRunnerWithTraits(
GetTaskTraitsWithExplicitPriority(traits));
}
scoped_refptr<SingleThreadTaskRunner> CreateSingleThreadTaskRunnerWithTraits(
const TaskTraits& traits,
SingleThreadTaskRunnerThreadMode thread_mode) {
DCHECK(TaskScheduler::GetInstance())
<< "Ref. Prerequisite section of post_task.h.\n\n"
"Hint: if this is in a unit test, you're likely merely missing a "
"base::test::ScopedTaskEnvironment member in your fixture.\n";
return TaskScheduler::GetInstance()->CreateSingleThreadTaskRunnerWithTraits(
GetTaskTraitsWithExplicitPriority(traits), thread_mode);
}
#if defined(OS_WIN)
scoped_refptr<SingleThreadTaskRunner> CreateCOMSTATaskRunnerWithTraits(
const TaskTraits& traits,
SingleThreadTaskRunnerThreadMode thread_mode) {
DCHECK(TaskScheduler::GetInstance())
<< "Ref. Prerequisite section of post_task.h.\n\n"
"Hint: if this is in a unit test, you're likely merely missing a "
"base::test::ScopedTaskEnvironment member in your fixture.\n";
return TaskScheduler::GetInstance()->CreateCOMSTATaskRunnerWithTraits(
GetTaskTraitsWithExplicitPriority(traits), thread_mode);
}
#endif // defined(OS_WIN)
} // namespace base
|
