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 <dlfcn.h>
17 #include "telephony_ext_wrapper.h"
18 #include "telephony_log_wrapper.h"
19
20 namespace OHOS {
21 namespace Telephony {
22 namespace {
23 const std::string TELEPHONY_EXT_WRAPPER_PATH = "libtel_ext_symbol.z.so";
24 } // namespace
25
TelephonyExtWrapper()26 TelephonyExtWrapper::TelephonyExtWrapper() {}
~TelephonyExtWrapper()27 TelephonyExtWrapper::~TelephonyExtWrapper()
28 {
29 TELEPHONY_LOGD("TelephonyExtWrapper::~TelephonyExtWrapper() start");
30 if (telephonyExtWrapperHandle_ != nullptr) {
31 dlclose(telephonyExtWrapperHandle_);
32 telephonyExtWrapperHandle_ = nullptr;
33 }
34 }
35
InitTelephonyExtWrapper()36 void TelephonyExtWrapper::InitTelephonyExtWrapper()
37 {
38 TELEPHONY_LOGD("TelephonyExtWrapper::InitTelephonyExtWrapper() start");
39 telephonyExtWrapperHandle_ = dlopen(TELEPHONY_EXT_WRAPPER_PATH.c_str(), RTLD_NOW);
40 if (telephonyExtWrapperHandle_ == nullptr) {
41 TELEPHONY_LOGE("libtel_ext_symbol.z.so was not loaded, error: %{public}s", dlerror());
42 return;
43 }
44
45 onNetworkStateUpdated_ = (ON_NETWORK_STATE_UPDATE)dlsym(telephonyExtWrapperHandle_, "OnNetworkStateUpdatedExt");
46 onSignalInfoUpdated_ = (ON_SIGNAL_INFO_UPDATE)dlsym(telephonyExtWrapperHandle_, "OnSignalInfoUpdatedExt");
47 onCellInfoUpdated_ = (ON_CELL_INFO_UPDATE)dlsym(telephonyExtWrapperHandle_, "OnCellInfoUpdatedExt");
48 onCellularDataConnectStateUpdated_ = (ON_CELLULAR_DATA_CONNECT_STATE_UPDATE)
49 dlsym(telephonyExtWrapperHandle_, "OnCellularDataConnectStateUpdatedExt");
50
51 sendNetworkStateChanged_ = (SEND_NETWORK_STATE_CHANGED)dlsym(telephonyExtWrapperHandle_,
52 "SendNetworkStateChangedExt");
53 sendSignalInfoChanged_ = (SEND_SIGNAL_INFO_CHANGED)dlsym(telephonyExtWrapperHandle_, "SendSignalInfoChangedExt");
54 // Check whether all function pointers are empty.
55 if (onNetworkStateUpdated_ == nullptr || onSignalInfoUpdated_ == nullptr || onCellInfoUpdated_ == nullptr
56 || onCellularDataConnectStateUpdated_ == nullptr || sendNetworkStateChanged_ == nullptr
57 || sendSignalInfoChanged_ == nullptr) {
58 TELEPHONY_LOGE("telephony ext wrapper symbol failed, error: %{public}s", dlerror());
59 return;
60 }
61
62 TELEPHONY_LOGI("telephony ext wrapper init success");
63 }
64 } // namespace Telephony
65 } // namespace OHOS