1 /*
2 * Copyright (c) 2021-2022 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 "distributed_hardware_service.h"
17
18 #include "if_system_ability_manager.h"
19 #include "ipc_skeleton.h"
20 #include "ipc_types.h"
21 #include "iservice_registry.h"
22 #include "string_ex.h"
23 #include "system_ability_definition.h"
24
25 #include "access_manager.h"
26 #include "dh_utils_hisysevent.h"
27 #include "distributed_hardware_errno.h"
28 #include "distributed_hardware_log.h"
29 #include "distributed_hardware_manager_factory.h"
30 #include "publisher.h"
31
32 namespace OHOS {
33 namespace DistributedHardware {
34 REGISTER_SYSTEM_ABILITY_BY_ID(DistributedHardwareService, DISTRIBUTED_HARDWARE_SA_ID, true);
35
DistributedHardwareService(int32_t saId,bool runOnCreate)36 DistributedHardwareService::DistributedHardwareService(int32_t saId, bool runOnCreate)
37 : SystemAbility(saId, runOnCreate)
38 {
39 }
40
OnStart()41 void DistributedHardwareService::OnStart()
42 {
43 DHLOGI("DistributedHardwareService::OnStart start");
44 HiSysEventWriteMsg(DHFWK_INIT_BEGIN, OHOS::HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
45 "dhfwk sa start on demand.");
46
47 if (state_ == ServiceRunningState::STATE_RUNNING) {
48 DHLOGI("DistributedHardwareService has already started.");
49 return;
50 }
51 if (!Init()) {
52 DHLOGE("failed to init DistributedHardwareService");
53 return;
54 }
55 state_ = ServiceRunningState::STATE_RUNNING;
56 DHLOGI("DistributedHardwareService::OnStart start service success.");
57 }
58
Init()59 bool DistributedHardwareService::Init()
60 {
61 DHLOGI("DistributedHardwareService::Init ready to init.");
62 if (!registerToService_) {
63 bool ret = Publish(this);
64 if (!ret) {
65 DHLOGE("DistributedHardwareService::Init Publish failed!");
66 HiSysEventWriteMsg(DHFWK_INIT_FAIL, OHOS::HiviewDFX::HiSysEvent::EventType::FAULT,
67 "dhfwk sa init publish failed.");
68 return false;
69 }
70 registerToService_ = true;
71 }
72 auto ret = AccessManager::GetInstance()->Init();
73 if (ret != DH_FWK_SUCCESS) {
74 DHLOGE("DistributedHardwareService::Init failed.");
75 HiSysEventWriteErrCodeMsg(DHFWK_INIT_FAIL, OHOS::HiviewDFX::HiSysEvent::EventType::FAULT,
76 ret, "dhfwk sa AccessManager init fail.");
77 return false;
78 }
79 DHLOGI("DistributedHardwareService::Init init success.");
80 HiSysEventWriteMsg(DHFWK_INIT_END, OHOS::HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
81 "dhfwk sa init success.");
82 return true;
83 }
84
OnStop()85 void DistributedHardwareService::OnStop()
86 {
87 DHLOGI("DistributedHardwareService::OnStop ready to stop service.");
88 state_ = ServiceRunningState::STATE_NOT_START;
89 registerToService_ = false;
90 }
91
RegisterPublisherListener(const DHTopic topic,const sptr<IPublisherListener> & listener)92 int32_t DistributedHardwareService::RegisterPublisherListener(const DHTopic topic,
93 const sptr<IPublisherListener> &listener)
94 {
95 Publisher::GetInstance().RegisterListener(topic, listener);
96 return DH_FWK_SUCCESS;
97 }
98
UnregisterPublisherListener(const DHTopic topic,const sptr<IPublisherListener> & listener)99 int32_t DistributedHardwareService::UnregisterPublisherListener(const DHTopic topic,
100 const sptr<IPublisherListener> &listener)
101 {
102 Publisher::GetInstance().UnregisterListener(topic, listener);
103 return DH_FWK_SUCCESS;
104 }
105
PublishMessage(const DHTopic topic,const std::string & msg)106 int32_t DistributedHardwareService::PublishMessage(const DHTopic topic, const std::string &msg)
107 {
108 Publisher::GetInstance().PublishMessage(topic, msg);
109 return DH_FWK_SUCCESS;
110 }
111
Dump(int32_t fd,const std::vector<std::u16string> & args)112 int DistributedHardwareService::Dump(int32_t fd, const std::vector<std::u16string>& args)
113 {
114 DHLOGI("DistributedHardwareService Dump.");
115
116 std::vector<std::string> argsStr {};
117 for (auto item : args) {
118 argsStr.emplace_back(Str16ToStr8(item));
119 }
120
121 std::string result("");
122 int ret = AccessManager::GetInstance()->Dump(argsStr, result);
123 if (ret != DH_FWK_SUCCESS) {
124 DHLOGE("Dump error, ret = %d", ret);
125 }
126
127 if (dprintf(fd, "%s\n", result.c_str()) < 0) {
128 DHLOGE("Hidump dprintf error");
129 ret = ERR_DH_FWK_HIDUMP_DPRINTF_ERROR;
130 }
131
132 return ret;
133 }
134 } // namespace DistributedHardware
135 } // namespace OHOS
136