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 dlclose(telephonyExtWrapperHandle_);
31 telephonyExtWrapperHandle_ = nullptr;
32 }
33
InitTelephonyExtWrapper()34 void TelephonyExtWrapper::InitTelephonyExtWrapper()
35 {
36 TELEPHONY_LOGD("TelephonyExtWrapper::InitTelephonyExtWrapper() start");
37 telephonyExtWrapperHandle_ = dlopen(TELEPHONY_EXT_WRAPPER_PATH.c_str(), RTLD_NOW);
38 if (telephonyExtWrapperHandle_ == nullptr) {
39 TELEPHONY_LOGE("libtel_ext_symbol.z.so was not loaded, error: %{public}s", dlerror());
40 return;
41 }
42
43 onNetworkStateUpdated_ = (ON_NETWORK_STATE_UPDATE)dlsym(telephonyExtWrapperHandle_, "OnNetworkStateUpdatedExt");
44 onSignalInfoUpdated_ = (ON_SIGNAL_INFO_UPDATE)dlsym(telephonyExtWrapperHandle_, "OnSignalInfoUpdatedExt");
45 onCellInfoUpdated_ = (ON_CELL_INFO_UPDATE)dlsym(telephonyExtWrapperHandle_, "OnCellInfoUpdatedExt");
46
47 sendNetworkStateChanged_ = (SEND_NETWORK_STATE_CHANGED)dlsym(telephonyExtWrapperHandle_,
48 "SendNetworkStateChangedExt");
49 sendSignalInfoChanged_ = (SEND_SIGNAL_INFO_CHANGED)dlsym(telephonyExtWrapperHandle_, "SendSignalInfoChangedExt");
50 // Check whether all function pointers are empty.
51 if (onNetworkStateUpdated_ == nullptr || onSignalInfoUpdated_ == nullptr || onCellInfoUpdated_ == nullptr
52 || sendNetworkStateChanged_ == nullptr || sendSignalInfoChanged_ == nullptr) {
53 TELEPHONY_LOGE("telephony ext wrapper symbol failed, error: %{public}s", dlerror());
54 return;
55 }
56
57 TELEPHONY_LOGI("telephony ext wrapper init success");
58 }
59 } // namespace Telephony
60 } // namespace OHOS