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
|
/*
* Copyright (C) 2018 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.
*/
// TODO(b/167628903): Delete this file
#define LOG_TAG "libpixelpowerstats"
#include <android-base/logging.h>
#include <android-base/properties.h>
#include <pixelpowerstats/PowerStatsUtils.h>
#include <pixelpowerstats/WlanStateResidencyDataProvider.h>
#include <cstdio>
#include <cstring>
namespace android {
namespace hardware {
namespace google {
namespace pixel {
namespace powerstats {
const uint32_t ACTIVE_ID = 0;
const uint32_t DEEPSLEEP_ID = 1;
WlanStateResidencyDataProvider::WlanStateResidencyDataProvider(uint32_t id, std::string path)
: mPath(std::move(path)), mPowerEntityId(id) {}
bool WlanStateResidencyDataProvider::getResults(
std::unordered_map<uint32_t, PowerEntityStateResidencyResult> &results) {
PowerEntityStateResidencyResult result = {
.powerEntityId = mPowerEntityId,
.stateResidencyData = {{.powerEntityStateId = ACTIVE_ID},
{.powerEntityStateId = DEEPSLEEP_ID}}};
std::string wlanDriverStatus = android::base::GetProperty("wlan.driver.status", "unloaded");
if (wlanDriverStatus != "ok") {
LOG(DEBUG) << __func__ << ": wlan is " << wlanDriverStatus;
// Return 0s for Wlan stats, because the driver is unloaded
results.insert(std::make_pair(mPowerEntityId, result));
return true;
}
// Using FILE* instead of std::ifstream for performance reasons (b/122253123)
std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(mPath.c_str(), "r"), fclose);
if (!fp) {
PLOG(ERROR) << __func__ << ":Failed to open file " << mPath;
return false;
}
size_t numFieldsRead = 0;
const size_t numFields = 4;
size_t len = 0;
char *line = nullptr;
while ((numFieldsRead < numFields) && (getline(&line, &len, fp.get()) != -1)) {
uint64_t stat = 0;
if (utils::extractStat(line, "cumulative_sleep_time_ms:", stat)) {
result.stateResidencyData[1].totalTimeInStateMs = stat;
++numFieldsRead;
} else if (utils::extractStat(line, "cumulative_total_on_time_ms:", stat)) {
result.stateResidencyData[0].totalTimeInStateMs = stat;
++numFieldsRead;
} else if (utils::extractStat(line, "deep_sleep_enter_counter:", stat)) {
result.stateResidencyData[0].totalStateEntryCount = stat;
result.stateResidencyData[1].totalStateEntryCount = stat;
++numFieldsRead;
} else if (utils::extractStat(line, "last_deep_sleep_enter_tstamp_ms:", stat)) {
result.stateResidencyData[1].lastEntryTimestampMs = stat;
++numFieldsRead;
}
}
free(line);
// End of file was reached and not all state data was parsed. Something
// went wrong
if (numFieldsRead != numFields) {
LOG(ERROR) << __func__ << ": failed to parse stats for wlan";
return false;
}
results.insert(std::make_pair(mPowerEntityId, result));
return true;
}
std::vector<PowerEntityStateSpace> WlanStateResidencyDataProvider::getStateSpaces() {
return {
{.powerEntityId = mPowerEntityId,
.states = {{.powerEntityStateId = ACTIVE_ID, .powerEntityStateName = "Active"},
{.powerEntityStateId = DEEPSLEEP_ID, .powerEntityStateName = "Deep-Sleep"}}}};
}
} // namespace powerstats
} // namespace pixel
} // namespace google
} // namespace hardware
} // namespace android
|
