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 "profile_event_handler.h"
17
18 #include "device_profile_errors.h"
19 #include "device_profile_log.h"
20
21 namespace OHOS {
22 namespace DeviceProfile {
23 namespace {
24 const std::string TAG = "ProfileEventHandler";
25 }
26
Init()27 bool ProfileEventHandler::Init()
28 {
29 auto runner = AppExecFwk::EventRunner::Create(handlerName_);
30 eventHandler_ = std::make_shared<AppExecFwk::EventHandler>(runner);
31 if (eventHandler_ == nullptr) {
32 return false;
33 }
34 return true;
35 }
36
Subscribe(const SubscribeInfo & subscribeInfo,const sptr<IRemoteObject> & profileEventNotifier)37 int32_t ProfileEventHandler::Subscribe(const SubscribeInfo& subscribeInfo,
38 const sptr<IRemoteObject>& profileEventNotifier)
39 {
40 std::lock_guard<std::mutex> autoLock(notifierLock_);
41 auto iter = profileEventSubscribeInfos_.find(profileEventNotifier);
42 if (iter == profileEventSubscribeInfos_.end()) {
43 profileEventSubscribeInfos_.emplace(profileEventNotifier, std::move(subscribeInfo));
44 } else {
45 // just overwrite when the follow-ups subscribe with the same notifier
46 HILOGW("overwrite last subscribed info");
47 iter->second = std::move(subscribeInfo);
48 }
49
50 if (!isRegistered_) {
51 int32_t errCode = Register();
52 if (errCode != ERR_OK) {
53 HILOGE("errCode = %{public}d", errCode);
54 return ERR_DP_SUBSCRIBE_FAILED;
55 }
56 isRegistered_ = true;
57 }
58 return ERR_OK;
59 }
60
Unsubscribe(const sptr<IRemoteObject> & profileEventNotifier)61 int32_t ProfileEventHandler::Unsubscribe(const sptr<IRemoteObject>& profileEventNotifier)
62 {
63 std::lock_guard<std::mutex> autoLock(notifierLock_);
64 auto iter = profileEventSubscribeInfos_.find(profileEventNotifier);
65 if (iter == profileEventSubscribeInfos_.end()) {
66 HILOGW("not subscribe yet");
67 return ERR_DP_NOT_SUBSCRIBED;
68 }
69 profileEventSubscribeInfos_.erase(iter);
70 if (profileEventSubscribeInfos_.empty()) {
71 int32_t errCode = Unregister();
72 if (errCode != ERR_OK) {
73 HILOGE("errCode = %{public}d", errCode);
74 return ERR_DP_UNSUBSCRIBE_FAILED;
75 }
76 isRegistered_ = false;
77 }
78 return ERR_OK;
79 }
80
OnSubscriberDied(const sptr<IRemoteObject> & profileEventNotifier)81 void ProfileEventHandler::OnSubscriberDied(const sptr<IRemoteObject>& profileEventNotifier)
82 {
83 HILOGD("called");
84 Unsubscribe(profileEventNotifier);
85 }
86
IsRegistered() const87 bool ProfileEventHandler::IsRegistered() const
88 {
89 return isRegistered_;
90 }
91 } // namespace DeviceProfile
92 } // namespace OHOS