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
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "collectors/disk_usage_collector.h"
#include <base/bind.h>
#include <base/bind_helpers.h>
#include <base/message_loop/message_loop.h>
#include <sys/statvfs.h>
#include "metrics/metrics_library.h"
namespace {
const char kDiskUsageMB[] = "Platform.DataPartitionUsed.MB";
const char kDiskUsagePercent[] = "Platform.DataPartitionUsed.Percent";
const char kDataPartitionPath[] = "/data";
// Collect every 15 minutes.
const int kDiskUsageCollectorIntervalSeconds = 900;
} // namespace
DiskUsageCollector::DiskUsageCollector(
MetricsLibraryInterface* metrics_library) {
collect_interval_ = base::TimeDelta::FromSeconds(
kDiskUsageCollectorIntervalSeconds);
CHECK(metrics_library);
metrics_lib_ = metrics_library;
}
void DiskUsageCollector::Collect() {
struct statvfs buf;
int result = statvfs(kDataPartitionPath, &buf);
if (result != 0) {
PLOG(ERROR) << "Failed to check the available space in "
<< kDataPartitionPath;
return;
}
unsigned long total_space = buf.f_blocks * buf.f_bsize;
unsigned long used_space = (buf.f_blocks - buf.f_bfree) * buf.f_bsize;
int percent_used = (used_space * 100) / total_space;
metrics_lib_->SendToUMA(kDiskUsageMB,
used_space / (1024 * 1024),
0,
1024, // up to 1 GB.
100);
metrics_lib_->SendEnumToUMA(kDiskUsagePercent, percent_used, 101);
}
void DiskUsageCollector::CollectCallback() {
Collect();
Schedule();
}
void DiskUsageCollector::Schedule() {
base::MessageLoop::current()->PostDelayedTask(FROM_HERE,
base::Bind(&DiskUsageCollector::CollectCallback, base::Unretained(this)),
collect_interval_);
}
|
