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 #include "avcodec_service_stub.h"
16 #include "avcodec_errors.h"
17 #include "avcodec_log.h"
18 #include "avcodec_server_manager.h"
19 #include "avcodec_xcollie.h"
20
21
22 namespace {
23 constexpr OHOS::HiviewDFX::HiLogLabel LABEL = {LOG_CORE, LOG_DOMAIN, "AVCodecServiceStub"};
24 }
25
26 namespace OHOS {
27 namespace MediaAVCodec {
AVCodecServiceStub()28 AVCodecServiceStub::AVCodecServiceStub()
29 {
30 deathRecipientMap_.clear();
31 avCodecListenerMap_.clear();
32 InitStub();
33 AVCODEC_LOGD("0x%{public}06" PRIXPTR " Instances create", FAKE_POINTER(this));
34 }
35
~AVCodecServiceStub()36 AVCodecServiceStub::~AVCodecServiceStub()
37 {
38 AVCODEC_LOGD("0x%{public}06" PRIXPTR " Instances destroy", FAKE_POINTER(this));
39 }
40
InitStub()41 void AVCodecServiceStub::InitStub() {}
42
DestroyStubForPid(pid_t pid)43 int32_t AVCodecServiceStub::DestroyStubForPid(pid_t pid)
44 {
45 {
46 std::lock_guard<std::mutex> lock(mutex_);
47 sptr<AVCodecDeathRecipient> deathRecipient = nullptr;
48 sptr<IStandardAVCodecListener> avCodecListener = nullptr;
49
50 auto itDeath = deathRecipientMap_.find(pid);
51 if (itDeath != deathRecipientMap_.end()) {
52 deathRecipient = itDeath->second;
53
54 if (deathRecipient != nullptr) {
55 deathRecipient->SetNotifyCb(nullptr);
56 }
57
58 (void)deathRecipientMap_.erase(itDeath);
59 }
60
61 auto itListener = avCodecListenerMap_.find(pid);
62 if (itListener != avCodecListenerMap_.end()) {
63 avCodecListener = itListener->second;
64
65 if (avCodecListener != nullptr && avCodecListener->AsObject() != nullptr && deathRecipient != nullptr) {
66 (void)avCodecListener->AsObject()->RemoveDeathRecipient(deathRecipient);
67 }
68
69 (void)avCodecListenerMap_.erase(itListener);
70 }
71 }
72
73 AVCodecServerManager::GetInstance().DestroyStubObjectForPid(pid);
74 return AVCS_ERR_OK;
75 }
76
OnRemoteRequest(uint32_t code,MessageParcel & data,MessageParcel & reply,MessageOption & option)77 int AVCodecServiceStub::OnRemoteRequest(uint32_t code, MessageParcel &data, MessageParcel &reply, MessageOption &option)
78 {
79 AVCODEC_LOGD("Stub: OnRemoteRequest of code: %{public}u is received", code);
80
81 auto remoteDescriptor = data.ReadInterfaceToken();
82 if (AVCodecServiceStub::GetDescriptor() != remoteDescriptor) {
83 AVCODEC_LOGE("Invalid descriptor");
84 return AVCS_ERR_INVALID_OPERATION;
85 }
86 int32_t ret = -1;
87 switch (code) {
88 case static_cast<uint32_t>(AVCodecServiceInterfaceCode::GET_SUBSYSTEM):
89 ret = GetSystemAbility(data, reply);
90 break;
91 default:
92 AVCODEC_LOGW("AVCodecServiceStub: no member func supporting, applying default process");
93 return IPCObjectStub::OnRemoteRequest(code, data, reply, option);
94 }
95 CHECK_AND_RETURN_RET_LOG(ret == AVCS_ERR_OK, ret, "Failed to call member func GetSystemAbility");
96 return ret;
97 }
98
ClientDied(pid_t pid)99 void AVCodecServiceStub::ClientDied(pid_t pid)
100 {
101 AVCODEC_LOGE("client is dead, pid:%{public}d", pid);
102 (void)DestroyStubForPid(pid);
103 }
104
SetDeathListener(const sptr<IRemoteObject> & object)105 int32_t AVCodecServiceStub::SetDeathListener(const sptr<IRemoteObject> &object)
106 {
107 std::lock_guard<std::mutex> lock(mutex_);
108 CHECK_AND_RETURN_RET_LOG(object != nullptr, AVCS_ERR_NO_MEMORY, "set listener object is nullptr");
109
110 pid_t pid = IPCSkeleton::GetCallingPid();
111 for (auto it = avCodecListenerMap_.begin(); it != avCodecListenerMap_.end(); ++it) {
112 if (it->first == pid) {
113 AVCODEC_LOGD("client pid already exits");
114 return AVCS_ERR_OK;
115 }
116 }
117 sptr<IStandardAVCodecListener> avCodecListener = iface_cast<IStandardAVCodecListener>(object);
118 CHECK_AND_RETURN_RET_LOG(avCodecListener != nullptr, AVCS_ERR_NO_MEMORY,
119 "failed to convert IStandardAVCodecListener");
120
121 sptr<AVCodecDeathRecipient> deathRecipient = new (std::nothrow) AVCodecDeathRecipient(pid);
122 CHECK_AND_RETURN_RET_LOG(deathRecipient != nullptr, AVCS_ERR_NO_MEMORY, "failed to new AVCodecDeathRecipient");
123
124 deathRecipient->SetNotifyCb(std::bind(&AVCodecServiceStub::ClientDied, this, std::placeholders::_1));
125
126 if (avCodecListener->AsObject() != nullptr) {
127 (void)avCodecListener->AsObject()->AddDeathRecipient(deathRecipient);
128 }
129
130 AVCODEC_LOGD("client pid pid:%{public}d", pid);
131 avCodecListenerMap_[pid] = avCodecListener;
132 deathRecipientMap_[pid] = deathRecipient;
133 return AVCS_ERR_OK;
134 }
135
GetSystemAbility(MessageParcel & data,MessageParcel & reply)136 int32_t AVCodecServiceStub::GetSystemAbility(MessageParcel &data, MessageParcel &reply)
137 {
138 AVCodecSystemAbility id = static_cast<AVCodecSystemAbility>(data.ReadInt32());
139 sptr<IRemoteObject> listenerObj = data.ReadRemoteObject();
140
141 (void)reply.WriteRemoteObject(GetSubSystemAbility(id, listenerObj));
142
143 return AVCS_ERR_OK;
144 }
145 } // namespace MediaAVCodec
146 } // namespace OHOS
147