1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "resolver.h"
17
18 #include <sys/time.h>
19
20 #include "file_util.h"
21 #include "hiview_event_report.h"
22 #include "hiview_logger.h"
23 #include "string_util.h"
24 #include "sys_event.h"
25 #include "sys_event_dao.h"
26
27 namespace OHOS {
28 namespace HiviewDFX {
29 DEFINE_LOG_LABEL(0xD002D01, "FreezeDetector");
Init()30 bool FreezeResolver::Init()
31 {
32 if (freezeCommon_ == nullptr) {
33 return false;
34 }
35 freezeRuleCluster_ = freezeCommon_->GetFreezeRuleCluster();
36 if (freezeRuleCluster_ == nullptr) {
37 return false;
38 }
39 dBHelper_ = std::make_unique<DBHelper>(freezeCommon_);
40 vendor_ = std::make_unique<Vendor>(freezeCommon_);
41 return vendor_->Init();
42 }
43
ResolveEvent(const WatchPoint & watchPoint,std::vector<WatchPoint> & list,std::vector<FreezeResult> & result) const44 bool FreezeResolver::ResolveEvent(const WatchPoint& watchPoint,
45 std::vector<WatchPoint>& list, std::vector<FreezeResult>& result) const
46 {
47 if (freezeRuleCluster_ == nullptr || !freezeRuleCluster_->GetResult(watchPoint, result)) {
48 return false;
49 }
50 unsigned long long timestamp = watchPoint.GetTimestamp();
51 long pid = watchPoint.GetPid();
52 std::string packageName = watchPoint.GetPackageName().empty() ?
53 watchPoint.GetProcessName() : watchPoint.GetPackageName();
54 DBHelper::WatchParams params = {pid, packageName};
55 for (auto& i : result) {
56 long window = i.GetWindow();
57 if (window == 0) {
58 list.push_back(watchPoint);
59 } else if (dBHelper_ != nullptr) {
60 unsigned long long timeInterval = static_cast<unsigned long long>(std::abs(window) * MILLISECOND);
61 unsigned long long start = window > 0 ? timestamp : timestamp - timeInterval;
62 unsigned long long end = window > 0 ? timestamp + timeInterval : timestamp;
63 dBHelper_->SelectEventFromDB(start, end, list, params, i);
64 }
65 }
66
67 HIVIEW_LOGI("list size %{public}zu", list.size());
68 return true;
69 }
70
JudgmentResult(const WatchPoint & watchPoint,const std::vector<WatchPoint> & list,const std::vector<FreezeResult> & result) const71 bool FreezeResolver::JudgmentResult(const WatchPoint& watchPoint,
72 const std::vector<WatchPoint>& list, const std::vector<FreezeResult>& result) const
73 {
74 if (watchPoint.GetDomain() == "ACE" && watchPoint.GetStringId() == "UI_BLOCK_6S") {
75 if (list.size() == result.size()) {
76 HIVIEW_LOGI("ACE UI_BLOCK has UI_BLOCK_3S UI_BLOCK_6S UI_BLOCK_RECOVERED as UI_JANK");
77 return false;
78 }
79
80 if (list.size() != (result.size() - 1)) {
81 return false;
82 }
83
84 for (auto& i : list) {
85 if (i.GetStringId() == "UI_BLOCK_RECOVERED") {
86 return false;
87 }
88 }
89 return true;
90 }
91
92 if (std::any_of(result.begin(), result.end(), [&list](auto& res) {
93 return res.GetAction() == "or";
94 })) {
95 return list.size() >= minMatchNum;
96 }
97
98 if (list.size() == result.size()) {
99 return true;
100 }
101 return false;
102 }
103
ProcessEvent(const WatchPoint & watchPoint) const104 int FreezeResolver::ProcessEvent(const WatchPoint &watchPoint) const
105 {
106 HIVIEW_LOGI("process event [%{public}s, %{public}s]",
107 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
108 if (vendor_ == nullptr) {
109 return -1;
110 }
111 std::vector<WatchPoint> list;
112 std::vector<FreezeResult> result;
113 if (!ResolveEvent(watchPoint, list, result)) {
114 HIVIEW_LOGW("no rule for event [%{public}s, %{public}s]",
115 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
116 return -1;
117 }
118
119 if (!JudgmentResult(watchPoint, list, result)) {
120 HIVIEW_LOGW("no match event for event [%{public}s, %{public}s]",
121 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
122 return -1;
123 }
124
125 vendor_->MergeEventLog(watchPoint, list, result);
126 return 0;
127 }
128
GetTimeZone() const129 std::string FreezeResolver::GetTimeZone() const
130 {
131 std::string timeZone = "";
132 struct timeval tv;
133 struct timezone tz;
134 if (gettimeofday(&tv, &tz) != 0) {
135 HIVIEW_LOGE("failed to gettimeofday");
136 return timeZone;
137 }
138
139 int hour = (-tz.tz_minuteswest) / MINUTES_IN_HOUR;
140 timeZone = (hour >= 0) ? "+" : "-";
141
142 int absHour = std::abs(hour);
143 if (absHour < defaultHours) {
144 timeZone.append("0");
145 }
146 timeZone.append(std::to_string(absHour));
147
148 int minute = (-tz.tz_minuteswest) % MINUTES_IN_HOUR;
149 int absMinute = std::abs(minute);
150 if (absMinute < defaultHours) {
151 timeZone.append("0");
152 }
153 timeZone.append(std::to_string(absMinute));
154
155 return timeZone;
156 }
157 } // namespace HiviewDFX
158 } // namespace OHOS
159