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
|
// Copyright (c) 2013 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 "components/variations/variations_request_scheduler.h"
#include <stddef.h>
#include "base/strings/string_number_conversions.h"
#include "build/build_config.h"
#include "components/variations/variations_associated_data.h"
namespace variations {
VariationsRequestScheduler::VariationsRequestScheduler(
const base::Closure& task) : task_(task) {
}
VariationsRequestScheduler::~VariationsRequestScheduler() {
}
void VariationsRequestScheduler::Start() {
task_.Run();
timer_.Start(FROM_HERE, GetFetchPeriod(), task_);
}
void VariationsRequestScheduler::Reset() {
if (timer_.IsRunning())
timer_.Reset();
one_shot_timer_.Stop();
}
void VariationsRequestScheduler::ScheduleFetchShortly() {
// Reset the regular timer to avoid it triggering soon after.
Reset();
// The delay before attempting a fetch shortly, in minutes.
const int kFetchShortlyDelayMinutes = 5;
one_shot_timer_.Start(FROM_HERE,
base::TimeDelta::FromMinutes(kFetchShortlyDelayMinutes),
task_);
}
void VariationsRequestScheduler::OnAppEnterForeground() {
NOTREACHED() << "Attempted to OnAppEnterForeground on non-mobile device";
}
base::TimeDelta VariationsRequestScheduler::GetFetchPeriod() const {
// The fetch interval can be overridden by a variation param.
std::string period_min_str =
variations::GetVariationParamValue("VariationsServiceControl",
"fetch_period_min");
size_t period_min;
if (base::StringToSizeT(period_min_str, &period_min))
return base::TimeDelta::FromMinutes(period_min);
// The default fetch interval is every 30 minutes.
return base::TimeDelta::FromMinutes(30);
}
base::Closure VariationsRequestScheduler::task() const {
return task_;
}
#if !defined(OS_ANDROID) && !defined(OS_IOS)
// static
VariationsRequestScheduler* VariationsRequestScheduler::Create(
const base::Closure& task,
PrefService* local_state) {
return new VariationsRequestScheduler(task);
}
#endif // !defined(OS_ANDROID) && !defined(OS_IOS)
} // namespace variations
|
