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 "observer_handler.h"
17
18 #include "telephony_log_wrapper.h"
19
20 namespace OHOS {
21 namespace Telephony {
ObserverHandler()22 ObserverHandler::ObserverHandler() {}
23
~ObserverHandler()24 ObserverHandler::~ObserverHandler() {}
25
RegObserver(int32_t what,const std::shared_ptr<AppExecFwk::EventHandler> handler)26 void ObserverHandler::RegObserver(int32_t what, const std::shared_ptr<AppExecFwk::EventHandler> handler)
27 {
28 std::lock_guard<std::mutex> lock(mutex_);
29 auto iter = observerHandlerMap_.find(what);
30 if (iter != observerHandlerMap_.end()) {
31 std::list<std::shared_ptr<OHOS::AppExecFwk::EventHandler>> &handlers = iter->second;
32 auto it = find(handlers.begin(), handlers.end(), handler);
33 if (it == handlers.end()) {
34 handlers.push_back(handler);
35 }
36 TELEPHONY_LOGD("ObserverHandler RegObserver update callback what: %{public}d, list size: %{public}zu", what,
37 handlers.size());
38 } else {
39 TELEPHONY_LOGD("ObserverHandler RegObserver callback what: %{public}d", what);
40 std::list<std::shared_ptr<AppExecFwk::EventHandler>> handlers;
41 handlers.push_back(handler);
42 observerHandlerMap_.emplace(what, handlers);
43 }
44 }
45
RemoveAll()46 void ObserverHandler::RemoveAll()
47 {
48 std::lock_guard<std::mutex> lock(mutex_);
49 observerHandlerMap_.clear();
50 }
51
Remove(int32_t what,const std::shared_ptr<AppExecFwk::EventHandler> handler)52 void ObserverHandler::Remove(int32_t what, const std::shared_ptr<AppExecFwk::EventHandler> handler)
53 {
54 if (handler == nullptr) {
55 TELEPHONY_LOGE("ObserverHandler handler==nullptr");
56 return;
57 }
58
59 std::lock_guard<std::mutex> lock(mutex_);
60 auto iter = observerHandlerMap_.find(what);
61 if (iter != observerHandlerMap_.end()) {
62 std::list<std::shared_ptr<OHOS::AppExecFwk::EventHandler>> &handlers = iter->second;
63 auto it = find(handlers.begin(), handlers.end(), handler);
64 if (it != handlers.end()) {
65 handlers.erase(it);
66 }
67 TELEPHONY_LOGD("ObserverHandler Remove handlers list: %{public}zu", handlers.size());
68 }
69 }
70
NotifyObserver(int32_t what)71 void ObserverHandler::NotifyObserver(int32_t what)
72 {
73 std::lock_guard<std::mutex> lock(mutex_);
74 auto iter = observerHandlerMap_.find(what);
75 if (iter == observerHandlerMap_.end()) {
76 TELEPHONY_LOGE("ObserverHandler NotifyObserver %{public}d not register", what);
77 return;
78 }
79
80 for (auto handler : iter->second) {
81 TELEPHONY_LOGD("handler->SendEvent:%{public}d", what);
82 handler->SendEvent(what);
83 }
84 }
85 } // namespace Telephony
86 } // namespace OHOS