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 "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_TAG("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) {
48 return false;
49 }
50 if (!freezeRuleCluster_->GetResult(watchPoint, result)) {
51 return false;
52 }
53 unsigned long long timestamp = watchPoint.GetTimestamp();
54 for (auto& i : result) {
55 int window = i.GetWindow();
56 if (window == 0) {
57 list.push_back(watchPoint);
58 } else if (window > 0) {
59 unsigned long long start = timestamp;
60 unsigned long long end = timestamp + (window * MILLISECOND);
61 std::string packageName = watchPoint.GetPackageName().empty() ?
62 watchPoint.GetProcessName() : watchPoint.GetPackageName();
63 if (dBHelper_ != nullptr) {
64 dBHelper_->SelectEventFromDB(start, end, list, packageName, i);
65 }
66 } else {
67 unsigned long long start = timestamp + (window * MILLISECOND);
68 unsigned long long end = timestamp;
69 std::string packageName = watchPoint.GetPackageName().empty() ?
70 watchPoint.GetProcessName() : watchPoint.GetPackageName();
71 if (dBHelper_ != nullptr) {
72 dBHelper_->SelectEventFromDB(start, end, list, packageName, i);
73 }
74 }
75 }
76
77 HIVIEW_LOGI("list size %{public}zu", list.size());
78 return true;
79 }
80
JudgmentResult(const WatchPoint & watchPoint,const std::vector<WatchPoint> & list,const std::vector<FreezeResult> & result) const81 bool FreezeResolver::JudgmentResult(const WatchPoint& watchPoint,
82 const std::vector<WatchPoint>& list, const std::vector<FreezeResult>& result) const
83 {
84 if (watchPoint.GetDomain() == "ACE" && watchPoint.GetStringId() == "UI_BLOCK_6S") {
85 if (list.size() == result.size()) {
86 HIVIEW_LOGI("ACE UI_BLOCK has UI_BLOCK_3S UI_BLOCK_6S UI_BLOCK_RECOVERED as UI_JANK");
87 return false;
88 }
89
90 if (list.size() != (result.size() - 1)) {
91 return false;
92 }
93
94 for (auto& i : list) {
95 if (i.GetStringId() == "UI_BLOCK_RECOVERED") {
96 return false;
97 }
98 }
99 return true;
100 }
101
102 if (list.size() == result.size()) {
103 return true;
104 }
105 return false;
106 }
107
ProcessEvent(const WatchPoint & watchPoint) const108 int FreezeResolver::ProcessEvent(const WatchPoint &watchPoint) const
109 {
110 HIVIEW_LOGI("process event [%{public}s, %{public}s]",
111 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
112 if (vendor_ == nullptr) {
113 return -1;
114 }
115 std::vector<WatchPoint> list;
116 std::vector<FreezeResult> result;
117 if (!ResolveEvent(watchPoint, list, result)) {
118 HIVIEW_LOGW("no rule for event [%{public}s, %{public}s]",
119 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
120 return -1;
121 }
122
123 if (!JudgmentResult(watchPoint, list, result)) {
124 HIVIEW_LOGW("no match event for event [%{public}s, %{public}s]",
125 watchPoint.GetDomain().c_str(), watchPoint.GetStringId().c_str());
126 return -1;
127 }
128
129 vendor_->MergeEventLog(watchPoint, list, result);
130 return 0;
131 }
132
GetTimeZone() const133 std::string FreezeResolver::GetTimeZone() const
134 {
135 std::string timeZone = "";
136 struct timeval tv;
137 struct timezone tz;
138 if (gettimeofday(&tv, &tz) != 0) {
139 HIVIEW_LOGE("failed to gettimeofday");
140 return timeZone;
141 }
142
143 int hour = (-tz.tz_minuteswest) / MINUTES_IN_HOUR;
144 timeZone = (hour >= 0) ? "+" : "-";
145
146 int absHour = std::abs(hour);
147 if (absHour < 10) {
148 timeZone.append("0");
149 }
150 timeZone.append(std::to_string(absHour));
151
152 int minute = (-tz.tz_minuteswest) % MINUTES_IN_HOUR;
153 int absMinute = std::abs(minute);
154 if (absMinute < 10) {
155 timeZone.append("0");
156 }
157 timeZone.append(std::to_string(absMinute));
158
159 return timeZone;
160 }
161 } // namespace HiviewDFX
162 } // namespace OHOS
163