1 /*
2 * Copyright (c) 2025 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 "ipc/critical_manager.h"
17
18 #include "app_log_tag_wrapper.h"
19 #include "mem_mgr_client.h"
20 #include "system_ability_definition.h"
21
22 namespace OHOS {
23 namespace AppExecFwk {
24 namespace {
25 constexpr uint32_t DELAY_MILLI_SECONDS = 5 * 1000;
26 constexpr const char* TASK_NAME = "CriticalTask";
27 }
28
29 std::mutex CriticalManager::mutex_;
30
CriticalManager()31 CriticalManager::CriticalManager()
32 {
33 delayedTaskMgr_ = std::make_shared<SingleDelayedTaskMgr>(TASK_NAME, DELAY_MILLI_SECONDS);
34 }
35
SetMemMgrStatus(bool started)36 void CriticalManager::SetMemMgrStatus(bool started)
37 {
38 std::lock_guard<std::mutex> lock(mutex_);
39 memMgrStarted_ = started;
40 }
41
BeforeRequest()42 void CriticalManager::BeforeRequest()
43 {
44 std::lock_guard<std::mutex> lock(mutex_);
45 LOG_D(BMS_TAG_INSTALLD, "before counter: %{public}d, memmgr: %{public}d, critical: %{public}d",
46 counter_, memMgrStarted_, critical_);
47 counter_++;
48 if (memMgrStarted_ && !critical_ && counter_ > 0) {
49 LOG_I(BMS_TAG_INSTALLD, "SetCritical true");
50 Memory::MemMgrClient::GetInstance().SetCritical(
51 getpid(), true, INSTALLD_SERVICE_ID);
52 critical_ = true;
53 }
54 }
55
AfterRequest()56 void CriticalManager::AfterRequest()
57 {
58 std::lock_guard<std::mutex> lock(mutex_);
59 LOG_D(BMS_TAG_INSTALLD, "after counter: %{public}d, memmgr: %{public}d, critical: %{public}d",
60 counter_, memMgrStarted_, critical_);
61 counter_--;
62 auto delayTask = []() {
63 std::lock_guard<std::mutex> lock(mutex_);
64 if (memMgrStarted_ && critical_ && counter_ == 0) {
65 LOG_I(BMS_TAG_INSTALLD, "SetCritical false");
66 Memory::MemMgrClient::GetInstance().SetCritical(
67 getpid(), false, INSTALLD_SERVICE_ID);
68 critical_ = false;
69 }
70 };
71 delayedTaskMgr_->ScheduleDelayedTask(delayTask);
72 }
73
74 } // namespace AppExecFwk
75 } // namespace OHOS
76