1 /*
2 * Copyright (c) 2025-2026 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 "networkslicemsgcenter.h"
17
18 namespace OHOS {
19 namespace NetManagerStandard {
20 NetworkSliceMsgCenter::NetworkSliceMsgCenter() = default;
21 NetworkSliceMsgCenter::~NetworkSliceMsgCenter() = default;
22
23 std::shared_timed_mutex NetworkSliceMsgCenter::mutex_ = {};
24
registHandler(NetworkSliceSubModule moduleId,std::shared_ptr<AppExecFwk::EventHandler> handler)25 void NetworkSliceMsgCenter::registHandler(NetworkSliceSubModule moduleId,
26 std::shared_ptr<AppExecFwk::EventHandler> handler)
27 {
28 std::unique_lock<std::shared_timed_mutex> lock(mutex_);
29 auto itHandlerList = moduleIdHandlerListMap_.find(moduleId);
30 if (itHandlerList != moduleIdHandlerListMap_.end()) {
31 auto &handleList = itHandlerList->second;
32 if (std::find(handleList.begin(), handleList.end(), handler) == handleList.end()) {
33 handleList.push_back(handler);
34 }
35 } else {
36 moduleIdHandlerListMap_[moduleId] = { handler };
37 }
38 }
39
unRegistHandler(NetworkSliceSubModule moduleId,std::shared_ptr<AppExecFwk::EventHandler> handler)40 void NetworkSliceMsgCenter::unRegistHandler(NetworkSliceSubModule moduleId,
41 std::shared_ptr<AppExecFwk::EventHandler> handler)
42 {
43 std::unique_lock<std::shared_timed_mutex> lock(mutex_);
44 auto itHandlerList = moduleIdHandlerListMap_.find(moduleId);
45 if (itHandlerList != moduleIdHandlerListMap_.end()) {
46 itHandlerList->second.remove(handler);
47 }
48 if (itHandlerList == moduleIdHandlerListMap_.end() || itHandlerList->second.empty()) {
49 for (auto it = eventHandlerMap_.begin(); it != eventHandlerMap_.end(); it++) {
50 it->second &= ~(1 << moduleId);
51 uint64_t key = (static_cast<uint64_t>(it->first) << 32) & static_cast<uint64_t>(moduleId);
52 eventSubscribeMap_.erase(key);
53 }
54 moduleIdHandlerListMap_.erase(moduleId);
55 }
56 }
57
Subscribe(NetworkSliceEvent event,NetworkSliceSubModule moduleId)58 void NetworkSliceMsgCenter::Subscribe(NetworkSliceEvent event, NetworkSliceSubModule moduleId)
59 {
60 NETMGR_EXT_LOG_I("event:%{public}d, module:%{public}d", event, moduleId);
61 std::unique_lock<std::shared_timed_mutex> lock(mutex_);
62 auto it = eventHandlerMap_.find(event);
63 if (it != eventHandlerMap_.end()) {
64 it->second |= (1 << moduleId);
65 } else {
66 eventHandlerMap_.insert(std::make_pair(event, 1 << moduleId));
67 }
68 uint64_t key = (static_cast<uint64_t>(event) << 32) & static_cast<uint64_t>(moduleId);
69 eventSubscribeMap_[key]++;
70 }
71
UnSubscribe(NetworkSliceEvent event,NetworkSliceSubModule moduleId)72 void NetworkSliceMsgCenter::UnSubscribe(NetworkSliceEvent event, NetworkSliceSubModule moduleId)
73 {
74 uint64_t key = (static_cast<uint64_t>(event) << 32) & static_cast<uint64_t>(moduleId);
75 auto it = eventSubscribeMap_.find(key);
76 if (it == eventSubscribeMap_.end() || it->second <= 1) {
77 auto it = eventHandlerMap_.find(event);
78 if (it != eventHandlerMap_.end()) {
79 it->second &= ~(1 << moduleId);
80 }
81 eventSubscribeMap_.erase(key);
82 } else {
83 eventSubscribeMap_[key]--;
84 }
85 }
86
87 }
88 }
89