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1 /*
2  * Copyright (c) 2023-2024 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 #include "appfreeze_manager.h"
16 
17 #include <fcntl.h>
18 #include <sys/time.h>
19 #include <sys/wait.h>
20 #include <sys/types.h>
21 #include <sys/syscall.h>
22 #include <sys/stat.h>
23 #include <fstream>
24 
25 #include "faultloggerd_client.h"
26 #include "file_ex.h"
27 #include "ffrt.h"
28 #include "dfx_dump_catcher.h"
29 #include "directory_ex.h"
30 #include "hisysevent.h"
31 #include "hitrace_meter.h"
32 #include "parameter.h"
33 #include "singleton.h"
34 
35 #include "app_mgr_client.h"
36 #include "hilog_tag_wrapper.h"
37 #include "time_util.h"
38 
39 namespace OHOS {
40 namespace AppExecFwk {
41 namespace {
42 constexpr char EVENT_UID[] = "UID";
43 constexpr char EVENT_PID[] = "PID";
44 constexpr char EVENT_INPUT_ID[] = "INPUT_ID";
45 constexpr char EVENT_MESSAGE[] = "MSG";
46 constexpr char EVENT_PACKAGE_NAME[] = "PACKAGE_NAME";
47 constexpr char EVENT_PROCESS_NAME[] = "PROCESS_NAME";
48 constexpr char EVENT_STACK[] = "STACK";
49 constexpr char BINDER_INFO[] = "BINDER_INFO";
50 constexpr char APP_RUNNING_UNIQUE_ID[] = "APP_RUNNING_UNIQUE_ID";
51 constexpr char FREEZE_MEMORY[] = "FREEZE_MEMORY";
52 constexpr int MAX_LAYER = 8;
53 constexpr int FREEZEMAP_SIZE_MAX = 20;
54 constexpr int FREEZE_TIME_LIMIT = 60000;
55 static constexpr int64_t NANOSECONDS = 1000000000;  // NANOSECONDS mean 10^9 nano second
56 static constexpr int64_t MICROSECONDS = 1000000;    // MICROSECONDS mean 10^6 millias second
57 constexpr uint64_t SEC_TO_MILLISEC = 1000;
58 const std::string LOG_FILE_PATH = "data/log/eventlog";
59 }
60 std::shared_ptr<AppfreezeManager> AppfreezeManager::instance_ = nullptr;
61 ffrt::mutex AppfreezeManager::singletonMutex_;
62 ffrt::mutex AppfreezeManager::freezeMutex_;
63 ffrt::mutex AppfreezeManager::catchStackMutex_;
64 std::map<int, std::string> AppfreezeManager::catchStackMap_;
65 ffrt::mutex AppfreezeManager::freezeFilterMutex_;
66 
AppfreezeManager()67 AppfreezeManager::AppfreezeManager()
68 {
69     name_ = "AppfreezeManager" + std::to_string(GetMilliseconds());
70 }
71 
~AppfreezeManager()72 AppfreezeManager::~AppfreezeManager()
73 {
74 }
75 
GetInstance()76 std::shared_ptr<AppfreezeManager> AppfreezeManager::GetInstance()
77 {
78     if (instance_ == nullptr) {
79         std::lock_guard<ffrt::mutex> lock(singletonMutex_);
80         if (instance_ == nullptr) {
81             instance_ = std::make_shared<AppfreezeManager>();
82         }
83     }
84     return instance_;
85 }
86 
DestroyInstance()87 void AppfreezeManager::DestroyInstance()
88 {
89     std::lock_guard<ffrt::mutex> lock(singletonMutex_);
90     if (instance_ != nullptr) {
91         instance_.reset();
92         instance_ = nullptr;
93     }
94 }
95 
GetMilliseconds()96 uint64_t AppfreezeManager::GetMilliseconds()
97 {
98     auto now = std::chrono::system_clock::now();
99     auto millisecs = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch());
100     return millisecs.count();
101 }
102 
IsHandleAppfreeze(const std::string & bundleName)103 bool AppfreezeManager::IsHandleAppfreeze(const std::string& bundleName)
104 {
105     if (bundleName.empty()) {
106         return true;
107     }
108     return !DelayedSingleton<AppExecFwk::AppMgrClient>::GetInstance()->IsAttachDebug(bundleName);
109 }
110 
AppfreezeHandle(const FaultData & faultData,const AppfreezeManager::AppInfo & appInfo)111 int AppfreezeManager::AppfreezeHandle(const FaultData& faultData, const AppfreezeManager::AppInfo& appInfo)
112 {
113     TAG_LOGD(AAFwkTag::APPDFR, "called %{public}s, bundleName %{public}s, name_ %{public}s",
114         faultData.errorObject.name.c_str(), appInfo.bundleName.c_str(), name_.c_str());
115     if (!IsHandleAppfreeze(appInfo.bundleName)) {
116         return -1;
117     }
118     HITRACE_METER_FMT(HITRACE_TAG_APP, "AppfreezeHandler:%{public}s bundleName:%{public}s",
119         faultData.errorObject.name.c_str(), appInfo.bundleName.c_str());
120     std::string memoryContent = "";
121     CollectFreezeSysMemory(memoryContent);
122     if (faultData.errorObject.name == AppFreezeType::APP_INPUT_BLOCK) {
123         AcquireStack(faultData, appInfo, memoryContent);
124     } else {
125         NotifyANR(faultData, appInfo, "", memoryContent);
126     }
127     return 0;
128 }
129 
CollectFreezeSysMemory(std::string & memoryContent)130 void AppfreezeManager::CollectFreezeSysMemory(std::string& memoryContent)
131 {
132     std::string memInfoPath = "/proc/memview";
133     if (!OHOS::FileExists(memInfoPath)) {
134         memInfoPath = "/proc/meminfo";
135     }
136     OHOS::LoadStringFromFile(memInfoPath, memoryContent);
137 }
138 
AppfreezeHandleWithStack(const FaultData & faultData,const AppfreezeManager::AppInfo & appInfo)139 int AppfreezeManager::AppfreezeHandleWithStack(const FaultData& faultData, const AppfreezeManager::AppInfo& appInfo)
140 {
141     TAG_LOGD(AAFwkTag::APPDFR, "called %{public}s, bundleName %{public}s, name_ %{public}s",
142         faultData.errorObject.name.c_str(), appInfo.bundleName.c_str(), name_.c_str());
143     if (!IsHandleAppfreeze(appInfo.bundleName)) {
144         return -1;
145     }
146     FaultData faultNotifyData;
147     faultNotifyData.errorObject.name = faultData.errorObject.name;
148     faultNotifyData.errorObject.message = faultData.errorObject.message;
149     faultNotifyData.errorObject.stack = faultData.errorObject.stack;
150     faultNotifyData.faultType = FaultDataType::APP_FREEZE;
151     faultNotifyData.eventId = faultData.eventId;
152 
153     HITRACE_METER_FMT(HITRACE_TAG_APP, "AppfreezeHandleWithStack pid:%d-name:%s",
154         appInfo.pid, faultData.errorObject.name.c_str());
155     if (faultData.errorObject.name == AppFreezeType::LIFECYCLE_TIMEOUT
156         || faultData.errorObject.name == AppFreezeType::APP_INPUT_BLOCK
157         || faultData.errorObject.name == AppFreezeType::THREAD_BLOCK_6S) {
158         if (AppExecFwk::AppfreezeManager::GetInstance()->IsNeedIgnoreFreezeEvent(appInfo.pid)) {
159             TAG_LOGE(AAFwkTag::APPDFR, "AppFreeze happend");
160             return 0;
161         }
162     }
163 
164     std::string memoryContent = "";
165     CollectFreezeSysMemory(memoryContent);
166     std::string fileName = faultData.errorObject.name + "_" + std::to_string(appInfo.pid) + "_stack";
167     std::string catcherStack = "";
168     std::string catchJsonStack = "";
169     std::string fullStackPath = "";
170     if (faultData.errorObject.name == AppFreezeType::LIFECYCLE_HALF_TIMEOUT
171         || faultData.errorObject.name == AppFreezeType::LIFECYCLE_TIMEOUT) {
172         catcherStack += CatcherStacktrace(appInfo.pid);
173         fullStackPath = WriteToFile(fileName, catcherStack);
174         faultNotifyData.errorObject.stack = fullStackPath;
175     } else {
176         auto start = GetMilliseconds();
177         std::string timeStamp = "\nTimestamp:" + AbilityRuntime::TimeUtil::FormatTime("%Y-%m-%d %H:%M:%S") +
178             ":" + std::to_string(start % SEC_TO_MILLISEC);
179         faultNotifyData.errorObject.message += timeStamp;
180         catchJsonStack += CatchJsonStacktrace(appInfo.pid, faultData.errorObject.name);
181         fullStackPath = WriteToFile(fileName, catchJsonStack);
182         faultNotifyData.errorObject.stack = fullStackPath;
183     }
184     if (faultNotifyData.errorObject.name == AppFreezeType::APP_INPUT_BLOCK) {
185         AcquireStack(faultNotifyData, appInfo, memoryContent);
186     } else {
187         NotifyANR(faultNotifyData, appInfo, "", memoryContent);
188     }
189     return 0;
190 }
191 
WriteToFile(const std::string & fileName,std::string & content)192 std::string AppfreezeManager::WriteToFile(const std::string& fileName, std::string& content)
193 {
194     std::string dir_path = LOG_FILE_PATH + "/freeze";
195     constexpr mode_t defaultLogDirMode = 0770;
196     if (!OHOS::FileExists(dir_path)) {
197         OHOS::ForceCreateDirectory(dir_path);
198         OHOS::ChangeModeDirectory(dir_path, defaultLogDirMode);
199     }
200     std::string realPath;
201     if (!OHOS::PathToRealPath(dir_path, realPath)) {
202         TAG_LOGE(AAFwkTag::APPDFR, "PathToRealPath Failed:%{public}s", dir_path.c_str());
203         return "";
204     }
205     std::string stackPath = realPath + "/" + fileName;
206     constexpr mode_t defaultLogFileMode = 0644;
207     auto fd = open(stackPath.c_str(), O_CREAT | O_WRONLY | O_TRUNC, defaultLogFileMode);
208     if (fd < 0) {
209         TAG_LOGI(AAFwkTag::APPDFR, "Failed to create stackPath");
210         return "";
211     } else {
212         TAG_LOGI(AAFwkTag::APPDFR, "stackPath: %{public}s", stackPath.c_str());
213     }
214     OHOS::SaveStringToFd(fd, content);
215     close(fd);
216     return stackPath;
217 }
218 
LifecycleTimeoutHandle(const ParamInfo & info,FreezeUtil::LifecycleFlow flow)219 int AppfreezeManager::LifecycleTimeoutHandle(const ParamInfo& info, FreezeUtil::LifecycleFlow flow)
220 {
221     if (info.typeId != AppfreezeManager::TypeAttribute::CRITICAL_TIMEOUT) {
222         return -1;
223     }
224     if (!IsHandleAppfreeze(info.bundleName)) {
225         return -1;
226     }
227     if (info.eventName != AppFreezeType::LIFECYCLE_TIMEOUT &&
228         info.eventName != AppFreezeType::LIFECYCLE_HALF_TIMEOUT) {
229         return -1;
230     }
231     TAG_LOGD(AAFwkTag::APPDFR, "called %{public}s, name_ %{public}s", info.bundleName.c_str(),
232         name_.c_str());
233     HITRACE_METER_FMT(HITRACE_TAG_APP, "LifecycleTimeoutHandle:%{public}s bundleName:%{public}s",
234         info.eventName.c_str(), info.bundleName.c_str());
235     AppFaultDataBySA faultDataSA;
236     faultDataSA.errorObject.name = info.eventName;
237     faultDataSA.errorObject.message = info.msg;
238     faultDataSA.faultType = FaultDataType::APP_FREEZE;
239     faultDataSA.timeoutMarkers = "notifyFault" +
240                                  std::to_string(info.pid) +
241                                  "-" + std::to_string(GetMilliseconds());
242     faultDataSA.pid = info.pid;
243     if (flow.state != AbilityRuntime::FreezeUtil::TimeoutState::UNKNOWN) {
244         faultDataSA.token = flow.token;
245         faultDataSA.state = static_cast<uint32_t>(flow.state);
246     }
247     DelayedSingleton<AppExecFwk::AppMgrClient>::GetInstance()->NotifyAppFaultBySA(faultDataSA);
248     return 0;
249 }
250 
AcquireStack(const FaultData & faultData,const AppfreezeManager::AppInfo & appInfo,const std::string & memoryContent)251 int AppfreezeManager::AcquireStack(const FaultData& faultData,
252     const AppfreezeManager::AppInfo& appInfo, const std::string& memoryContent)
253 {
254     int ret = 0;
255     int pid = appInfo.pid;
256     FaultData faultNotifyData;
257     faultNotifyData.errorObject.name = faultData.errorObject.name;
258     faultNotifyData.errorObject.message = faultData.errorObject.message;
259     faultNotifyData.errorObject.stack = faultData.errorObject.stack;
260     faultNotifyData.faultType = FaultDataType::APP_FREEZE;
261     faultNotifyData.eventId = faultData.eventId;
262     std::string binderInfo;
263     std::set<int> pids = GetBinderPeerPids(binderInfo, pid);
264     if (pids.empty()) {
265         binderInfo += "PeerBinder pids is empty\n";
266     }
267     for (auto& pidTemp : pids) {
268         TAG_LOGI(AAFwkTag::APPDFR, "pidTemp pids:%{public}d", pidTemp);
269         if (pidTemp != pid) {
270             std::string content = "PeerBinder catcher stacktrace for pid : " + std::to_string(pidTemp) + "\n";
271             content += CatcherStacktrace(pidTemp);
272             binderInfo += content;
273         }
274     }
275 
276     std::string fileName = faultData.errorObject.name + "_" + std::to_string(appInfo.pid) + "_binder";
277     std::string fullStackPath = WriteToFile(fileName, binderInfo);
278     binderInfo = fullStackPath;
279 
280     ret = NotifyANR(faultNotifyData, appInfo, binderInfo, memoryContent);
281     return ret;
282 }
283 
NotifyANR(const FaultData & faultData,const AppfreezeManager::AppInfo & appInfo,const std::string & binderInfo,const std::string & memoryContent)284 int AppfreezeManager::NotifyANR(const FaultData& faultData, const AppfreezeManager::AppInfo& appInfo,
285     const std::string& binderInfo, const std::string& memoryContent)
286 {
287     std::string appRunningUniqueId = "";
288     DelayedSingleton<AppExecFwk::AppMgrClient>::GetInstance()->GetAppRunningUniqueIdByPid(appInfo.pid,
289         appRunningUniqueId);
290     int ret = 0;
291     if (faultData.errorObject.name == AppFreezeType::APP_INPUT_BLOCK) {
292         ret = HiSysEventWrite(OHOS::HiviewDFX::HiSysEvent::Domain::AAFWK, faultData.errorObject.name,
293             OHOS::HiviewDFX::HiSysEvent::EventType::FAULT, EVENT_UID, appInfo.uid, EVENT_PID, appInfo.pid,
294             EVENT_PACKAGE_NAME, appInfo.bundleName, EVENT_PROCESS_NAME, appInfo.processName, EVENT_MESSAGE,
295             faultData.errorObject.message, EVENT_STACK, faultData.errorObject.stack, BINDER_INFO, binderInfo,
296             APP_RUNNING_UNIQUE_ID, appRunningUniqueId, EVENT_INPUT_ID, faultData.eventId,
297             FREEZE_MEMORY, memoryContent);
298     } else {
299         ret = HiSysEventWrite(OHOS::HiviewDFX::HiSysEvent::Domain::AAFWK, faultData.errorObject.name,
300             OHOS::HiviewDFX::HiSysEvent::EventType::FAULT, EVENT_UID, appInfo.uid, EVENT_PID, appInfo.pid,
301             EVENT_PACKAGE_NAME, appInfo.bundleName, EVENT_PROCESS_NAME, appInfo.processName, EVENT_MESSAGE,
302             faultData.errorObject.message, EVENT_STACK, faultData.errorObject.stack, BINDER_INFO, binderInfo,
303             APP_RUNNING_UNIQUE_ID, appRunningUniqueId, FREEZE_MEMORY, memoryContent);
304     }
305     TAG_LOGI(AAFwkTag::APPDFR,
306         "reportEvent:%{public}s, pid:%{public}d, bundleName:%{public}s, appRunningUniqueId:%{public}s"
307         ", eventId:%{public}d hisysevent write ret: %{public}d",
308         faultData.errorObject.name.c_str(), appInfo.pid, appInfo.bundleName.c_str(), appRunningUniqueId.c_str(),
309         faultData.eventId, ret);
310     return 0;
311 }
312 
BinderParser(std::ifstream & fin,std::string & stack) const313 std::map<int, std::set<int>> AppfreezeManager::BinderParser(std::ifstream& fin, std::string& stack) const
314 {
315     std::map<int, std::set<int>> binderInfo;
316     const int decimal = 10;
317     std::string line;
318     bool isBinderMatchup = false;
319     TAG_LOGI(AAFwkTag::APPDFR, "start");
320     stack += "BinderCatcher --\n\n";
321     while (getline(fin, line)) {
322         stack += line + "\n";
323         if (isBinderMatchup) {
324             continue;
325         }
326 
327         if (line.find("async") != std::string::npos) {
328             continue;
329         }
330 
331         std::istringstream lineStream(line);
332         std::vector<std::string> strList;
333         std::string tmpstr;
334         while (lineStream >> tmpstr) {
335             strList.push_back(tmpstr);
336         }
337 
338         auto SplitPhase = [](const std::string& str, uint16_t index) -> std::string {
339             std::vector<std::string> strings;
340             SplitStr(str, ":", strings);
341             if (index < strings.size()) {
342                 return strings[index];
343             }
344             return "";
345         };
346 
347         if (strList.size() >= 7) { // 7: valid array size
348             // 2: peer id,
349             std::string server = SplitPhase(strList[2], 0);
350             // 0: local id,
351             std::string client = SplitPhase(strList[0], 0);
352             // 5: wait time, s
353             std::string wait = SplitPhase(strList[5], 1);
354             if (server == "" || client == "" || wait == "") {
355                 continue;
356             }
357             int serverNum = std::strtol(server.c_str(), nullptr, decimal);
358             int clientNum = std::strtol(client.c_str(), nullptr, decimal);
359             int waitNum = std::strtol(wait.c_str(), nullptr, decimal);
360             TAG_LOGI(AAFwkTag::APPDFR, "server:%{public}d, client:%{public}d, wait:%{public}d", serverNum, clientNum,
361                 waitNum);
362             binderInfo[clientNum].insert(serverNum);
363         }
364         if (line.find("context") != line.npos) {
365             isBinderMatchup = true;
366         }
367     }
368     TAG_LOGI(AAFwkTag::APPDFR, "binderInfo size: %{public}zu", binderInfo.size());
369     return binderInfo;
370 }
371 
GetBinderPeerPids(std::string & stack,int pid) const372 std::set<int> AppfreezeManager::GetBinderPeerPids(std::string& stack, int pid) const
373 {
374     std::set<int> pids;
375     std::ifstream fin;
376     std::string path = LOGGER_DEBUG_PROC_PATH;
377     char resolvePath[PATH_MAX] = {0};
378     if (realpath(path.c_str(), resolvePath) == nullptr) {
379         TAG_LOGE(AAFwkTag::APPDFR, "invalid realpath");
380         return pids;
381     }
382     fin.open(resolvePath);
383     if (!fin.is_open()) {
384         TAG_LOGE(AAFwkTag::APPDFR, "open failed, %{public}s", resolvePath);
385         stack += "open file failed :" + path + "\r\n";
386         return pids;
387     }
388 
389     stack += "\n\nPeerBinderCatcher -- pid==" + std::to_string(pid) + "\n\n";
390     std::map<int, std::set<int>> binderInfo = BinderParser(fin, stack);
391     fin.close();
392 
393     if (binderInfo.size() == 0 || binderInfo.find(pid) == binderInfo.end()) {
394         return pids;
395     }
396 
397     ParseBinderPids(binderInfo, pids, pid, 0);
398     for (auto& each : pids) {
399         TAG_LOGD(AAFwkTag::APPDFR, "each pids:%{public}d", each);
400     }
401     return pids;
402 }
403 
ParseBinderPids(const std::map<int,std::set<int>> & binderInfo,std::set<int> & pids,int pid,int layer) const404 void AppfreezeManager::ParseBinderPids(const std::map<int, std::set<int>>& binderInfo,
405     std::set<int>& pids, int pid, int layer) const
406 {
407     auto it = binderInfo.find(pid);
408     layer++;
409     if (layer >= MAX_LAYER) {
410         return;
411     }
412     if (it != binderInfo.end()) {
413         for (auto& each : it->second) {
414             pids.insert(each);
415             ParseBinderPids(binderInfo, pids, each, layer);
416         }
417     }
418 }
419 
DeleteStack(int pid)420 void AppfreezeManager::DeleteStack(int pid)
421 {
422     std::lock_guard<ffrt::mutex> lock(catchStackMutex_);
423     auto it = catchStackMap_.find(pid);
424     if (it != catchStackMap_.end()) {
425         catchStackMap_.erase(it);
426     }
427 }
428 
FindStackByPid(std::string & ret,int pid) const429 void AppfreezeManager::FindStackByPid(std::string& ret, int pid) const
430 {
431     std::lock_guard<ffrt::mutex> lock(catchStackMutex_);
432     auto it = catchStackMap_.find(pid);
433     if (it != catchStackMap_.end()) {
434         ret = it->second;
435     }
436 }
437 
CatchJsonStacktrace(int pid,const std::string & faultType) const438 std::string AppfreezeManager::CatchJsonStacktrace(int pid, const std::string& faultType) const
439 {
440     HITRACE_METER_FMT(HITRACE_TAG_APP, "CatchJsonStacktrace pid:%d", pid);
441     HiviewDFX::DfxDumpCatcher dumplog;
442     std::string ret;
443     std::string msg;
444     size_t defaultMaxFaultNum = 256;
445     if (dumplog.DumpCatchProcess(pid, msg, defaultMaxFaultNum, true) == -1) {
446         TAG_LOGI(AAFwkTag::APPDFR, "appfreeze catch stack failed");
447         ret = "Failed to dump stacktrace for " + std::to_string(pid) + "\n" + msg;
448         if (faultType == AppFreezeType::APP_INPUT_BLOCK) {
449             FindStackByPid(ret, pid);
450         }
451     } else {
452         ret = msg;
453         if (faultType == AppFreezeType::THREAD_BLOCK_3S) {
454             std::lock_guard<ffrt::mutex> lock(catchStackMutex_);
455             catchStackMap_[pid] = msg;
456         }
457     }
458     return ret;
459 }
460 
CatcherStacktrace(int pid) const461 std::string AppfreezeManager::CatcherStacktrace(int pid) const
462 {
463     HITRACE_METER_FMT(HITRACE_TAG_APP, "CatcherStacktrace pid:%d", pid);
464     HiviewDFX::DfxDumpCatcher dumplog;
465     std::string ret;
466     std::string msg;
467     if (dumplog.DumpCatchProcess(pid, msg) == -1) {
468         ret = "Failed to dump stacktrace for " + std::to_string(pid) + "\n" + msg;
469     } else {
470         ret = msg;
471     }
472     return ret;
473 }
474 
IsProcessDebug(int32_t pid,std::string processName)475 bool AppfreezeManager::IsProcessDebug(int32_t pid, std::string processName)
476 {
477     std::lock_guard<ffrt::mutex> lock(freezeFilterMutex_);
478     auto it = appfreezeFilterMap_.find(processName);
479     if (it != appfreezeFilterMap_.end() && it->second.pid == pid) {
480         if (it->second.state == AppFreezeState::APPFREEZE_STATE_CANCELED) {
481             TAG_LOGI(AAFwkTag::APPDFR, "filtration only once");
482             return false;
483         } else {
484             TAG_LOGI(AAFwkTag::APPDFR, "filtration %{public}s", processName.c_str());
485             return true;
486         }
487     }
488 
489     const int buffSize = 128;
490     char paramBundle[buffSize] = {0};
491     GetParameter("hiviewdfx.appfreeze.filter_bundle_name", "", paramBundle, buffSize - 1);
492     std::string debugBundle(paramBundle);
493 
494     if (processName.compare(debugBundle) == 0) {
495         TAG_LOGI(AAFwkTag::APPDFR, "filtration %{public}s_%{public}s not exit",
496             debugBundle.c_str(), processName.c_str());
497         return true;
498     }
499     return false;
500 }
501 
GetFreezeCurrentTime()502 int64_t AppfreezeManager::GetFreezeCurrentTime()
503 {
504     struct timespec t;
505     t.tv_sec = 0;
506     t.tv_nsec = 0;
507     clock_gettime(CLOCK_MONOTONIC, &t);
508     return static_cast<int64_t>(((t.tv_sec) * NANOSECONDS + t.tv_nsec) / MICROSECONDS);
509 }
510 
SetFreezeState(int32_t pid,int state)511 void AppfreezeManager::SetFreezeState(int32_t pid, int state)
512 {
513     std::lock_guard<ffrt::mutex> lock(freezeMutex_);
514     if (appfreezeInfo_.find(pid) != appfreezeInfo_.end()) {
515         appfreezeInfo_[pid].state = state;
516         appfreezeInfo_[pid].occurTime = GetFreezeCurrentTime();
517     } else {
518         AppFreezeInfo info;
519         info.pid = pid;
520         info.state = state;
521         info.occurTime = GetFreezeCurrentTime();
522         appfreezeInfo_.emplace(pid, info);
523     }
524 }
525 
GetFreezeState(int32_t pid)526 int AppfreezeManager::GetFreezeState(int32_t pid)
527 {
528     std::lock_guard<ffrt::mutex> lock(freezeMutex_);
529     auto it = appfreezeInfo_.find(pid);
530     if (it != appfreezeInfo_.end()) {
531         return it->second.state;
532     }
533     return AppFreezeState::APPFREEZE_STATE_IDLE;
534 }
535 
GetFreezeTime(int32_t pid)536 int64_t AppfreezeManager::GetFreezeTime(int32_t pid)
537 {
538     std::lock_guard<ffrt::mutex> lock(freezeMutex_);
539     auto it = appfreezeInfo_.find(pid);
540     if (it != appfreezeInfo_.end()) {
541         return it->second.occurTime;
542     }
543     return 0;
544 }
545 
ClearOldInfo()546 void AppfreezeManager::ClearOldInfo()
547 {
548     std::lock_guard<ffrt::mutex> lock(freezeMutex_);
549     int64_t currentTime = GetFreezeCurrentTime();
550     for (auto it = appfreezeInfo_.begin(); it != appfreezeInfo_.end();) {
551         auto diff = currentTime - it->second.occurTime;
552         if (diff > FREEZE_TIME_LIMIT) {
553             it = appfreezeInfo_.erase(it);
554         } else {
555             ++it;
556         }
557     }
558 }
559 
IsNeedIgnoreFreezeEvent(int32_t pid)560 bool AppfreezeManager::IsNeedIgnoreFreezeEvent(int32_t pid)
561 {
562     if (appfreezeInfo_.size() >= FREEZEMAP_SIZE_MAX) {
563         ClearOldInfo();
564     }
565     int state = GetFreezeState(pid);
566     int64_t currentTime = GetFreezeCurrentTime();
567     int64_t lastTime = GetFreezeTime(pid);
568     auto diff = currentTime - lastTime;
569     if (state == AppFreezeState::APPFREEZE_STATE_FREEZE) {
570         if (diff >= FREEZE_TIME_LIMIT) {
571             TAG_LOGI(AAFwkTag::APPDFR, "durationTime: "
572                 "%{public}" PRId64 "state: %{public}d", diff, state);
573             return false;
574         }
575         return true;
576     } else {
577         if (currentTime > FREEZE_TIME_LIMIT && diff < FREEZE_TIME_LIMIT) {
578             return true;
579         }
580         SetFreezeState(pid, AppFreezeState::APPFREEZE_STATE_FREEZE);
581         TAG_LOGI(AAFwkTag::APPDFR, "durationTime: "
582             "%{public}" PRId64 " SetFreezeState: %{public}d", diff, state);
583         return false;
584     }
585 }
586 
CancelAppFreezeDetect(int32_t pid,const std::string & bundleName)587 bool AppfreezeManager::CancelAppFreezeDetect(int32_t pid, const std::string& bundleName)
588 {
589     if (bundleName.empty()) {
590         return false;
591     }
592     std::lock_guard<ffrt::mutex> lock(freezeFilterMutex_);
593     AppFreezeInfo info;
594     info.pid = pid;
595     info.state = AppFreezeState::APPFREEZE_STATE_CANCELING;
596     appfreezeFilterMap_.emplace(bundleName, info);
597     return true;
598 }
599 
RemoveDeathProcess(std::string bundleName)600 void AppfreezeManager::RemoveDeathProcess(std::string bundleName)
601 {
602     std::lock_guard<ffrt::mutex> lock(freezeFilterMutex_);
603     auto it = appfreezeFilterMap_.find(bundleName);
604     if (it != appfreezeFilterMap_.end()) {
605         TAG_LOGD(AAFwkTag::APPDFR, "bundleName: %{public}s",
606             bundleName.c_str());
607         appfreezeFilterMap_.erase(it);
608     }
609 }
610 
ResetAppfreezeState(int32_t pid,const std::string & bundleName)611 void AppfreezeManager::ResetAppfreezeState(int32_t pid, const std::string& bundleName)
612 {
613     std::lock_guard<ffrt::mutex> lock(freezeFilterMutex_);
614     if (appfreezeFilterMap_.find(bundleName) != appfreezeFilterMap_.end()) {
615         TAG_LOGD(AAFwkTag::APPDFR, "bundleName: %{public}s",
616             bundleName.c_str());
617         appfreezeFilterMap_[bundleName].state = AppFreezeState::APPFREEZE_STATE_CANCELED;
618     }
619 }
620 
IsValidFreezeFilter(int32_t pid,const std::string & bundleName)621 bool AppfreezeManager::IsValidFreezeFilter(int32_t pid, const std::string& bundleName)
622 {
623     std::lock_guard<ffrt::mutex> lock(freezeFilterMutex_);
624     if (appfreezeFilterMap_.find(bundleName) != appfreezeFilterMap_.end()) {
625         return false;
626     }
627     return true;
628 }
629 }  // namespace AAFwk
630 }  // namespace OHOS