1 /*
2 * Copyright (C) 2021 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 "dbinder_death_recipient.h"
17 #include "dbinder_service.h"
18 #include "dbinder_log.h"
19 #include "log_tags.h"
20
21 namespace OHOS {
22 static constexpr OHOS::HiviewDFX::HiLogLabel LOG_LABEL = { LOG_CORE, LOG_ID_RPC_DBINDER_SER, "DbinderDeathRecipient" };
23
OnRemoteDied(const wptr<IRemoteObject> &remote)24 void DbinderDeathRecipient::OnRemoteDied(const wptr<IRemoteObject> &remote)
25 {
26 DBINDER_LOGE(LOG_LABEL, "DbinderDeathRecipient OnRemoteDied");
27 if (remote == nullptr) {
28 DBINDER_LOGE(LOG_LABEL, "remote object is null");
29 return;
30 }
31
32 sptr<IRemoteObject> object = remote.promote();
33 if (object == nullptr) {
34 DBINDER_LOGE(LOG_LABEL, "Remote object is null");
35 return;
36 }
37 IPCObjectProxy *callbackProxy = reinterpret_cast<IPCObjectProxy *>(object.GetRefPtr());
38
39 sptr<DBinderService> dBinderService = DBinderService::GetInstance();
40 if (dBinderService == nullptr) {
41 DBINDER_LOGE(LOG_LABEL, "dBinderService is null");
42 return;
43 }
44
45 sptr<IRemoteObject::DeathRecipient> death = dBinderService->QueryDeathRecipient(object);
46 if (death != nullptr) {
47 // Continue to clear subsequent data
48 callbackProxy->RemoveDeathRecipient(death);
49 }
50
51 if (!dBinderService->DetachDeathRecipient(object)) {
52 DBINDER_LOGE(LOG_LABEL, "detaching death recipient is failed");
53 return;
54 }
55
56 if (!dBinderService->DetachCallbackProxy(object)) {
57 DBINDER_LOGE(LOG_LABEL, "detaching callback proxy is failed");
58 return;
59 }
60 }
61 } // namespace OHOS
62