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 namespace {
30 static const int SYS_MATCH_NUM = 1;
31 }
32
33 DEFINE_LOG_LABEL(0xD002D01, "FreezeDetector");
Init()34 bool FreezeResolver::Init()
35 {
36 if (freezeCommon_ == nullptr) {
37 return false;
38 }
39 freezeRuleCluster_ = freezeCommon_->GetFreezeRuleCluster();
40 if (freezeRuleCluster_ == nullptr) {
41 return false;
42 }
43 dBHelper_ = std::make_unique<DBHelper>(freezeCommon_);
44 vendor_ = std::make_unique<Vendor>(freezeCommon_);
45 return vendor_->Init();
46 }
47
ResolveEvent(const WatchPoint & watchPoint,std::vector<WatchPoint> & list,std::vector<FreezeResult> & result) const48 bool FreezeResolver::ResolveEvent(const WatchPoint& watchPoint,
49 std::vector<WatchPoint>& list, std::vector<FreezeResult>& result) const
50 {
51 if (freezeRuleCluster_ == nullptr || !freezeRuleCluster_->GetResult(watchPoint, result)) {
52 return false;
53 }
54 unsigned long long timestamp = watchPoint.GetTimestamp();
55 long pid = watchPoint.GetPid();
56 std::string packageName = watchPoint.GetPackageName().empty() ?
57 watchPoint.GetProcessName() : watchPoint.GetPackageName();
58 DBHelper::WatchParams params = {pid, packageName};
59 for (auto& i : result) {
60 long window = i.GetWindow();
61 if (window == 0) {
62 list.push_back(watchPoint);
63 } else if (dBHelper_ != nullptr) {
64 unsigned long long timeInterval = static_cast<unsigned long long>(std::abs(window) * MILLISECOND);
65 unsigned long long start = window > 0 ? timestamp : timestamp - timeInterval;
66 unsigned long long end = window > 0 ? timestamp + timeInterval : timestamp;
67 dBHelper_->SelectEventFromDB(start, end, list, params, i);
68 }
69 }
70
71 HIVIEW_LOGI("list size %{public}zu", list.size());
72 return true;
73 }
74
JudgmentResult(const WatchPoint & watchPoint,const std::vector<WatchPoint> & list,const std::vector<FreezeResult> & result) const75 bool FreezeResolver::JudgmentResult(const WatchPoint& watchPoint,
76 const std::vector<WatchPoint>& list, const std::vector<FreezeResult>& result) const
77 {
78 if (watchPoint.GetDomain() == "ACE" && watchPoint.GetStringId() == "UI_BLOCK_6S") {
79 if (list.size() == result.size()) {
80 HIVIEW_LOGI("ACE UI_BLOCK has UI_BLOCK_3S UI_BLOCK_6S UI_BLOCK_RECOVERED as UI_JANK");
81 return false;
82 }
83
84 if (list.size() != (result.size() - 1)) {
85 return false;
86 }
87
88 for (auto& i : list) {
89 if (i.GetStringId() == "UI_BLOCK_RECOVERED") {
90 return false;
91 }
92 }
93 return true;
94 }
95
96 if (std::any_of(result.begin(), result.end(), [&list](auto& res) {
97 return res.GetAction() == "or";
98 })) {
99 return list.size() >= minMatchNum;
100 }
101
102 if ((watchPoint.GetStringId() == "SERVICE_WARNING" || watchPoint.GetStringId() ==
103 "THREAD_BLOCK_3S") && (list.size() == result.size() - SYS_MATCH_NUM)) {
104 return true;
105 }
106
107 if (list.size() == result.size()) {
108 return true;
109 }
110 return false;
111 }
112
ProcessEvent(const WatchPoint & watchPoint) const113 int FreezeResolver::ProcessEvent(const WatchPoint &watchPoint) const
114 {
115 HIVIEW_LOGI("process event [%{public}s, %{public}s]",
116 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
117 if (vendor_ == nullptr) {
118 return -1;
119 }
120 std::vector<WatchPoint> list;
121 std::vector<FreezeResult> result;
122 if (!ResolveEvent(watchPoint, list, result)) {
123 HIVIEW_LOGW("no rule for event [%{public}s, %{public}s]",
124 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
125 return -1;
126 }
127
128 if (!JudgmentResult(watchPoint, list, result)) {
129 HIVIEW_LOGW("no match event for event [%{public}s, %{public}s]",
130 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
131 return -1;
132 }
133
134 vendor_->MergeEventLog(watchPoint, list, result);
135 return 0;
136 }
137
GetTimeZone() const138 std::string FreezeResolver::GetTimeZone() const
139 {
140 std::string timeZone = "";
141 struct timeval tv;
142 struct timezone tz;
143 if (gettimeofday(&tv, &tz) != 0) {
144 HIVIEW_LOGE("failed to gettimeofday");
145 return timeZone;
146 }
147
148 int hour = (-tz.tz_minuteswest) / MINUTES_IN_HOUR;
149 timeZone = (hour >= 0) ? "+" : "-";
150
151 int absHour = std::abs(hour);
152 if (absHour < defaultHours) {
153 timeZone.append("0");
154 }
155 timeZone.append(std::to_string(absHour));
156
157 int minute = (-tz.tz_minuteswest) % MINUTES_IN_HOUR;
158 int absMinute = std::abs(minute);
159 if (absMinute < defaultHours) {
160 timeZone.append("0");
161 }
162 timeZone.append(std::to_string(absMinute));
163
164 return timeZone;
165 }
166 } // namespace HiviewDFX
167 } // namespace OHOS
168