1 /*
2 * Copyright (c) 2022 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 "watchdog.h"
17
18 #include "iservice_registry.h"
19 #include "system_ability_definition.h"
20
21 #include "background_task_mgr_service.h"
22 #include "transient_task_log.h"
23
24 using namespace std;
25
26 namespace OHOS {
27 namespace BackgroundTaskMgr {
28
Watchdog(const wptr<BackgroundTaskMgrService> & service,const std::shared_ptr<DecisionMaker> & decision,const std::shared_ptr<AppExecFwk::EventRunner> & runner)29 Watchdog::Watchdog(const wptr<BackgroundTaskMgrService>& service, const std::shared_ptr<DecisionMaker>& decision,
30 const std::shared_ptr<AppExecFwk::EventRunner>& runner) : service_(service), decision_(decision)
31 {
32 if (runner != nullptr) {
33 SetEventRunner(runner);
34 }
35 }
36
AddWatchdog(int32_t requestId,const std::shared_ptr<KeyInfo> & info,int32_t interval)37 bool Watchdog::AddWatchdog(int32_t requestId, const std::shared_ptr<KeyInfo>& info, int32_t interval)
38 {
39 BGTASK_LOGD("AddWatchdog %{public}d", requestId);
40 return SendEvent(requestId, info, interval);
41 }
42
RemoveWatchdog(int32_t requestId)43 void Watchdog::RemoveWatchdog(int32_t requestId)
44 {
45 BGTASK_LOGD("RemoveWatchdog %{public}d", requestId);
46 RemoveEvent(requestId);
47 }
48
ProcessEvent(const AppExecFwk::InnerEvent::Pointer & event)49 void Watchdog::ProcessEvent(const AppExecFwk::InnerEvent::Pointer& event)
50 {
51 if (event == nullptr) {
52 return;
53 }
54 int32_t requestId = event->GetInnerEventId();
55 const shared_ptr<KeyInfo>& info = event->GetSharedObject<KeyInfo>();
56 if (decision_->IsFrontApp(info->GetPkg(), info->GetUid())) {
57 auto bgTask = service_.promote();
58 if (bgTask == nullptr) {
59 BGTASK_LOGE("fail to get bgTask service.");
60 return;
61 }
62 BGTASK_LOGI("handle watchdog, force cancel requestId: %{public}d", requestId);
63 bgTask->ForceCancelSuspendDelay(requestId);
64 } else {
65 BGTASK_LOGI("handle application background, kill it, requestId: %{public}d", requestId);
66 // do kill
67 if (!KillApplicationByUid(info->GetPkg(), info->GetUid())) {
68 BGTASK_LOGE("fail to kill running application");
69 }
70 }
71 }
72
KillApplicationByUid(const std::string & bundleName,const int32_t uid)73 bool Watchdog::KillApplicationByUid(const std::string &bundleName, const int32_t uid)
74 {
75 BGTASK_LOGI("kill running application, app name is %{public}s, uid is %{public}d",
76 bundleName.c_str(), uid);
77 if (appMgrClient_ == nullptr) {
78 appMgrClient_ = std::make_unique<AppExecFwk::AppMgrClient>();
79 if (appMgrClient_ == nullptr) {
80 BGTASK_LOGE("failed to get appMgrClient");
81 return false;
82 }
83 int32_t result = static_cast<int32_t>(appMgrClient_->ConnectAppMgrService());
84 if (result != ERR_OK) {
85 BGTASK_LOGE("failed to ConnectAppMgrService");
86 return false;
87 }
88 }
89 int32_t ret = (int32_t)appMgrClient_->KillApplicationByUid(bundleName, uid);
90 if (ret != ERR_OK) {
91 BGTASK_LOGE("Fail to kill application by uid.");
92 return false;
93 }
94
95 return true;
96 }
97 } // namespace BackgroundTaskMgr
98 } // namespace OHOS