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 "connect_count/connect_count.h"
17
18 #include "dfs_error.h"
19 #include "utils_directory.h"
20 #include "utils_log.h"
21
22 namespace OHOS {
23 namespace Storage {
24 namespace DistributedFile {
25 std::shared_ptr<ConnectCount> ConnectCount::instance_ = nullptr;
26 static const int32_t ON_STATUS_OFFLINE = 13900046;
GetInstance()27 std::shared_ptr<ConnectCount> ConnectCount::GetInstance()
28 {
29 static std::once_flag once;
30 std::call_once(once, [&]() {
31 instance_ = std::make_shared<ConnectCount>();
32 });
33
34 return instance_;
35 }
36
AddConnect(uint32_t callingTokenId,const std::string & networkId,sptr<IFileDfsListener> & listener)37 void ConnectCount::AddConnect(uint32_t callingTokenId, const std::string &networkId, sptr<IFileDfsListener> &listener)
38 {
39 std::lock_guard lock(connectMutex_);
40 for (auto &connect : connectList_) {
41 if (connect->callingTokenId == callingTokenId && connect->networkId == networkId) {
42 connect->num++;
43 return;
44 }
45 }
46 auto connect = std::make_shared<Connect>(callingTokenId, networkId, 1, listener);
47 connectList_.insert(connect);
48 }
49
CheckCount(const std::string & networkId)50 bool ConnectCount::CheckCount(const std::string &networkId)
51 {
52 std::lock_guard lock(connectMutex_);
53 for (auto &connect : connectList_) {
54 if (connect->networkId == networkId) {
55 return true;
56 }
57 }
58 return false;
59 }
60
RemoveAllConnect()61 void ConnectCount::RemoveAllConnect()
62 {
63 std::lock_guard lock(connectMutex_);
64 for (auto &connect : connectList_) {
65 if (connect->listener != nullptr) {
66 connect->listener->OnStatus(connect->networkId, ON_STATUS_OFFLINE);
67 }
68 }
69 connectList_.clear();
70 }
71
RemoveConnect(uint32_t callingTokenId)72 std::vector<std::string> ConnectCount::RemoveConnect(uint32_t callingTokenId)
73 {
74 std::lock_guard lock(connectMutex_);
75 auto networkIds = GetNetworkIds(callingTokenId);
76 for (auto iter = connectList_.begin(); iter != connectList_.end();) {
77 if ((*iter)->callingTokenId == callingTokenId) {
78 iter = connectList_.erase(iter);
79 continue;
80 }
81 iter++;
82 }
83 return networkIds;
84 }
85
RemoveConnect(const std::string & networkId)86 void ConnectCount::RemoveConnect(const std::string &networkId)
87 {
88 std::lock_guard lock(connectMutex_);
89 for (auto iter = connectList_.begin(); iter != connectList_.end();) {
90 if ((*iter)->networkId == networkId) {
91 iter = connectList_.erase(iter);
92 continue;
93 }
94 iter++;
95 }
96 }
97
RemoveConnect(uint32_t callingTokenId,const std::string & networkId)98 void ConnectCount::RemoveConnect(uint32_t callingTokenId, const std::string &networkId)
99 {
100 std::lock_guard lock(connectMutex_);
101 for (auto iter = connectList_.begin(); iter != connectList_.end();) {
102 if ((*iter)->callingTokenId == callingTokenId && (*iter)->networkId == networkId) {
103 iter = connectList_.erase(iter);
104 continue;
105 }
106 iter++;
107 }
108 }
109
GetNetworkIds(uint32_t callingTokenId)110 std::vector<std::string> ConnectCount::GetNetworkIds(uint32_t callingTokenId)
111 {
112 std::lock_guard lock(connectMutex_);
113 std::vector<std::string> networkIds;
114 for (auto &connect : connectList_) {
115 if (connect->callingTokenId == callingTokenId) {
116 networkIds.push_back(connect->networkId);
117 }
118 }
119 return networkIds;
120 }
121
NotifyRemoteReverseObj(const std::string & networkId,int32_t status)122 void ConnectCount::NotifyRemoteReverseObj(const std::string &networkId, int32_t status)
123 {
124 std::lock_guard lock(connectMutex_);
125 for (auto &connect : connectList_) {
126 if (connect->networkId == networkId && connect->listener != nullptr) {
127 connect->listener->OnStatus(networkId, status);
128 LOGI("NotifyRemoteReverseObj, networkId: %{public}s, callingTokenId: %{public}u",
129 Utils::GetAnonyString(networkId).c_str(), connect->callingTokenId);
130 }
131 }
132 }
133
FindCallingTokenIdForListerner(const sptr<IRemoteObject> & listener,uint32_t & callingTokenId)134 int32_t ConnectCount::FindCallingTokenIdForListerner(const sptr<IRemoteObject> &listener, uint32_t &callingTokenId)
135 {
136 std::lock_guard lock(connectMutex_);
137 for (auto &connect : connectList_) {
138 if (connect->listener != nullptr && (connect->listener)->AsObject() == listener) {
139 callingTokenId = connect->callingTokenId;
140 return FileManagement::E_OK;
141 }
142 }
143 return FileManagement::ERR_BAD_VALUE;
144 }
145 } // namespace DistributedFile
146 } // namespace Storage
147 } // namespace OHOS
148