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
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/scheduler/main_thread/policy_updater.h"
#include "base/check.h"
#include "third_party/blink/renderer/platform/scheduler/main_thread/agent_group_scheduler_impl.h"
#include "third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl.h"
#include "third_party/blink/renderer/platform/scheduler/main_thread/page_scheduler_impl.h"
namespace blink::scheduler {
PolicyUpdater::PolicyUpdater() = default;
PolicyUpdater::~PolicyUpdater() {
// Check: Objects for which to update policy must be in the same hierarchy.
if (frame_ && page_) {
CHECK_EQ(frame_->GetPageScheduler(), page_);
}
if (frame_ && agent_group_) {
CHECK_EQ(frame_->GetAgentGroupScheduler(), agent_group_);
}
if (page_ && agent_group_) {
CHECK_EQ(&page_->GetAgentGroupScheduler(), agent_group_);
}
// Update policy. Note: Since policy updates are propagated downward, it is
// only necessary to call `UpdatePolicy()` on the highest object in the
// hierarchy.
if (agent_group_) {
agent_group_->UpdatePolicy();
} else if (page_) {
page_->UpdatePolicy();
} else if (frame_) {
frame_->UpdatePolicy();
}
}
void PolicyUpdater::UpdateFramePolicy(FrameSchedulerImpl* frame) {
CHECK(!frame_ || frame_ == frame);
frame_ = frame;
}
void PolicyUpdater::UpdatePagePolicy(PageSchedulerImpl* page) {
CHECK(!page_ || page_ == page);
page_ = page;
}
void PolicyUpdater::UpdateAgentGroupPolicy(
AgentGroupSchedulerImpl* agent_group) {
CHECK(!agent_group_ || agent_group_ == agent_group);
agent_group_ = agent_group;
}
} // namespace blink::scheduler
|
