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1 /*
2  * Copyright (c) 2023 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 "edm_load_manager.h"
17 
18 #include <system_ability_definition.h>
19 
20 #include "edm_load_callback.h"
21 #include "edm_log.h"
22 #include "edm_sys_manager.h"
23 #include "iremote_broker.h"
24 #include "iremote_object.h"
25 #include "iservice_registry.h"
26 
27 namespace OHOS {
28 namespace EDM {
29 static constexpr int32_t EDM_LOADSA_TIMEOUT_MS = 1000;
30 
GetInstance()31 EdmLoadManager& EdmLoadManager::GetInstance()
32 {
33     static auto instance = new EdmLoadManager();
34     return *instance;
35 }
36 
LoadAndGetEdmService()37 sptr<IRemoteObject> EdmLoadManager::LoadAndGetEdmService()
38 {
39     if (SUCCEEDED(LoadEdmSa())) {
40         return EdmSysManager::GetRemoteObjectOfSystemAbility(ENTERPRISE_DEVICE_MANAGER_SA_ID);
41     }
42     return nullptr;
43 }
44 
LoadEdmSa()45 ErrCode EdmLoadManager::LoadEdmSa()
46 {
47     EDMLOGI("%{public}s enter, systemAbilityId = [%{public}d] loading", __func__, ENTERPRISE_DEVICE_MANAGER_SA_ID);
48     InitLoadState();
49     sptr<ISystemAbilityManager> samgr =
50         SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
51     if (samgr == nullptr) {
52         EDMLOGE("%{public}s: get system ability manager failed!", __func__);
53         return EdmReturnErrCode::SYSTEM_ABNORMALLY;
54     }
55 
56     auto edmLoadCallback = sptr<EdmLoadCallback>(new EdmLoadCallback());
57     int32_t ret = samgr->LoadSystemAbility(ENTERPRISE_DEVICE_MANAGER_SA_ID, edmLoadCallback);
58     if (ret != ERR_OK) {
59         EDMLOGE("%{public}s: Failed to load system ability, SA Id = [%{public}d], ret = [%{public}d].",
60             __func__, ENTERPRISE_DEVICE_MANAGER_SA_ID, ret);
61         return ERR_EDM_SA_LOAD_FAILED;
62     }
63     return WaitLoadStateChange();
64 }
65 
InitLoadState()66 void EdmLoadManager::InitLoadState()
67 {
68     std::unique_lock<std::mutex> lock(locatorMutex_);
69     state_ = false;
70 }
71 
WaitLoadStateChange()72 ErrCode EdmLoadManager::WaitLoadStateChange()
73 {
74     std::unique_lock<std::mutex> lock(locatorMutex_);
75     auto wait = locatorCon_.wait_for(lock, std::chrono::milliseconds(EDM_LOADSA_TIMEOUT_MS), [this] {
76         return state_;
77     });
78     if (!wait) {
79         EDMLOGE("locator sa edm start time out.");
80         return ERR_EDM_SA_LOAD_FAILED;
81     }
82     EDMLOGI("sa edm load success.");
83     return ERR_OK;
84 }
85 
UnloadEdmSa()86 ErrCode EdmLoadManager::UnloadEdmSa()
87 {
88     EDMLOGI("%{public}s enter, systemAbilityId = [%{public}d] unloading", __func__, ENTERPRISE_DEVICE_MANAGER_SA_ID);
89     sptr<ISystemAbilityManager> samgr =
90         SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
91     if (samgr == nullptr) {
92         EDMLOGE("%{public}s: get system ability manager failed!", __func__);
93         return EdmReturnErrCode::SYSTEM_ABNORMALLY;
94     }
95     int32_t ret = samgr->UnloadSystemAbility(ENTERPRISE_DEVICE_MANAGER_SA_ID);
96     if (ret != ERR_OK) {
97         EDMLOGE("%{public}s: Failed to unload system ability, SA Id = [%{public}d], ret = [%{public}d].",
98             __func__, ENTERPRISE_DEVICE_MANAGER_SA_ID, ret);
99         return ERR_EDM_SA_LOAD_FAILED;
100     }
101     return ERR_OK;
102 }
103 
LoadSystemAbilitySuccess()104 void EdmLoadManager::LoadSystemAbilitySuccess()
105 {
106     std::unique_lock<std::mutex> lock(locatorMutex_);
107     state_ = true;
108     locatorCon_.notify_one();
109 }
110 
LoadSystemAbilityFail()111 void EdmLoadManager::LoadSystemAbilityFail()
112 {
113     std::unique_lock<std::mutex> lock(locatorMutex_);
114     state_ = false;
115     locatorCon_.notify_one();
116 }
117 }; // namespace EDM
118 }; // namespace OHOS