1 /*
2 * Copyright (c) 2022 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 "dm_distributed_hardware_load.h"
17
18 #include "dm_constants.h"
19 #include "dm_log.h"
20 #include "if_system_ability_manager.h" // for ISystemAbilityManager
21 #include "iservice_registry.h" // for SystemAbilityManagerClient
22 #include "system_ability_definition.h" // for DISTRIBUTED_HARDWARE_SA_ID
23
24 namespace OHOS {
25 namespace DistributedHardware {
26 IMPLEMENT_SINGLE_INSTANCE(DmDistributedHardwareLoad);
27 const uint32_t MAX_LOAD_VALUE = 3;
28
LoadDistributedHardwareFwk(void)29 void DmDistributedHardwareLoad::LoadDistributedHardwareFwk(void)
30 {
31 LOGI("enter DmDistributedHardwareLoad::LoadDistributedHardwareFwk");
32 sptr<ISystemAbilityManager> samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
33 if (samgr == nullptr) {
34 LOGE("failed to get system ability mgr.");
35 return;
36 }
37 distributedHardwareLoadCount_++;
38 sptr<DistributedHardwareLoadCallback> distributedHardwareLoadCallback_ = new DistributedHardwareLoadCallback();
39 int32_t ret = samgr->LoadSystemAbility(DISTRIBUTED_HARDWARE_SA_ID, distributedHardwareLoadCallback_);
40 if (ret != DM_OK) {
41 LOGE("Failed to Load systemAbility, systemAbilityId:%d, ret code:%d",
42 DISTRIBUTED_HARDWARE_SA_ID, ret);
43 }
44 return;
45 }
InitDistributedHardwareLoadCount(void)46 void DmDistributedHardwareLoad::InitDistributedHardwareLoadCount(void)
47 {
48 distributedHardwareLoadCount_ = 0;
49 }
GetDistributedHardwareLoadCount()50 uint32_t DmDistributedHardwareLoad::GetDistributedHardwareLoadCount()
51 {
52 return distributedHardwareLoadCount_;
53 }
54
OnLoadSystemAbilitySuccess(int32_t systemAbilityId,const sptr<IRemoteObject> & remoteObject)55 void DistributedHardwareLoadCallback::OnLoadSystemAbilitySuccess(
56 int32_t systemAbilityId, const sptr<IRemoteObject> &remoteObject)
57 {
58 LOGI("DmDistributedHardware Load SA success, systemAbilityId:%d, remoteObject result:%s",
59 systemAbilityId, (remoteObject != nullptr) ? "true" : "false");
60 if (remoteObject == nullptr) {
61 LOGE("remoteObject is nullptr");
62 return;
63 }
64 DmDistributedHardwareLoad::GetInstance().InitDistributedHardwareLoadCount();
65 }
OnLoadSystemAbilityFail(int32_t systemAbilityId)66 void DistributedHardwareLoadCallback::OnLoadSystemAbilityFail(int32_t systemAbilityId)
67 {
68 LOGE("DmDistributedHardware Load SA failed, systemAbilityId:%d", systemAbilityId);
69
70 if (DmDistributedHardwareLoad::GetInstance().GetDistributedHardwareLoadCount() < MAX_LOAD_VALUE) {
71 DmDistributedHardwareLoad::GetInstance().LoadDistributedHardwareFwk();
72 } else {
73 DmDistributedHardwareLoad::GetInstance().InitDistributedHardwareLoadCount();
74 }
75 return;
76 }
77 } // namespace DistributedHardware
78 } // namespace OHOS
79