1 /*
2 * Copyright (c) 2024 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
18 #include "base/log/log_wrapper.h"
19 #include "base/network/download_manager.h"
20
21 namespace OHOS::Ace {
22 using CreateDownloadManagerFunc = DownloadManager* (*)();
23 std::unique_ptr<DownloadManager> DownloadManager::instance_ = nullptr;
24 constexpr char CREATE_DOWNLOAD_MANAGER_FUNC[] = "OHOS_ACE_CreateDownloadManager";
25 constexpr char ACE_NET_WORK_NAME[] = "libace_network.z.so";
26
CreateDownloadManager()27 DownloadManager* CreateDownloadManager()
28 {
29 void* handle = dlopen(ACE_NET_WORK_NAME, RTLD_LAZY | RTLD_LOCAL);
30 if (handle == nullptr) {
31 TAG_LOGW(AceLogTag::ACE_DOWNLOAD_MANAGER, "load libace_network failed");
32 return nullptr;
33 }
34
35 auto entry = reinterpret_cast<CreateDownloadManagerFunc>(dlsym(handle, CREATE_DOWNLOAD_MANAGER_FUNC));
36 if (entry == nullptr) {
37 dlclose(handle);
38 return nullptr;
39 }
40
41 auto* manager = entry();
42 return manager;
43 }
44
GetInstance()45 DownloadManager* DownloadManager::GetInstance()
46 {
47 TAG_LOGI(AceLogTag::ACE_DOWNLOAD_MANAGER, "DownloadManager GetInstance");
48 static std::once_flag onceFlag;
49 std::call_once(onceFlag, []() {
50 instance_.reset(CreateDownloadManager());
51 });
52 return instance_.get();
53 }
54 } // namespace OHOS::Ace