1 /*
2 * Copyright (c) 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
16 #include "account_status_listener.h"
17
18 #include <fcntl.h>
19
20 #include "cloud_daemon_statistic.h"
21 #include "common_event_manager.h"
22 #include "common_event_support.h"
23 #include "account_status.h"
24 #include "utils_log.h"
25
26 namespace OHOS {
27 namespace FileManagement {
28 namespace CloudDisk {
29
SwapMemory()30 static void SwapMemory()
31 {
32 auto fd = open("/proc/self/reclaim", O_WRONLY);
33 if (fd < 0) {
34 LOGE("Failed to open reclaim, errno:%{public}d", errno);
35 return;
36 }
37 std::string content = "1";
38 if (write(fd, content.c_str(), content.size()) < 0) {
39 LOGE("Failed to write reclaim, errno:%{public}d", errno);
40 }
41 close(fd);
42 return;
43 }
44
AccountStatusSubscriber(const EventFwk::CommonEventSubscribeInfo & subscribeInfo)45 AccountStatusSubscriber::AccountStatusSubscriber(const EventFwk::CommonEventSubscribeInfo &subscribeInfo)
46 : EventFwk::CommonEventSubscriber(subscribeInfo)
47 {
48 }
49
OnReceiveEvent(const EventFwk::CommonEventData & eventData)50 void AccountStatusSubscriber::OnReceiveEvent(const EventFwk::CommonEventData &eventData)
51 {
52 auto action = eventData.GetWant().GetAction();
53 if (action == EventFwk::CommonEventSupport::COMMON_EVENT_HWID_LOGIN) {
54 LOGI("Account Login!");
55 AccountStatus::SetAccountState(AccountStatus::AccountState::ACCOUNT_LOGIN);
56 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_HWID_LOGOUT) {
57 LOGI("Account Logout!");
58 AccountStatus::SetAccountState(AccountStatus::AccountState::ACCOUNT_LOGOUT);
59 SwapMemory();
60 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_OFF &&
61 AccountStatus::GetAccountState() == AccountStatus::AccountState::ACCOUNT_LOGIN) {
62 LOGI("Screen Off and Swap Memory!");
63 SwapMemory();
64 CloudFile::CloudDaemonStatistic::GetInstance().UpdateStatData();
65 }
66 }
67
~AccountStatusListener()68 AccountStatusListener::~AccountStatusListener()
69 {
70 Stop();
71 }
72
Start()73 void AccountStatusListener::Start()
74 {
75 /* subscribe Account login and logout status */
76 EventFwk::MatchingSkills matchingSkills;
77 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_HWID_LOGIN);
78 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_HWID_LOGOUT);
79 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_OFF);
80 EventFwk::CommonEventSubscribeInfo info(matchingSkills);
81 commonEventSubscriber_ = std::make_shared<AccountStatusSubscriber>(info);
82 auto subRet = EventFwk::CommonEventManager::SubscribeCommonEvent(commonEventSubscriber_);
83 LOGI("Subscriber end, SubscribeResult = %{public}d", subRet);
84 }
85
Stop()86 void AccountStatusListener::Stop()
87 {
88 if (commonEventSubscriber_ != nullptr) {
89 EventFwk::CommonEventManager::UnSubscribeCommonEvent(commonEventSubscriber_);
90 commonEventSubscriber_ = nullptr;
91 }
92 }
93 } // namespace CloudDisk
94 } // namespace FileManagement
95 } // namespace OHOS