1 /*
2  * Copyright (c) 2022 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 <mutex>
17 #include <scoped_bytrace.h>
18 #include "hdi_device.h"
19 #include "hdi_device_impl.h"
20 #include "hdi_log.h"
21 
22 namespace OHOS {
23 namespace Rosen {
GetInstance()24 HdiDevice* HdiDevice::GetInstance()
25 {
26     static HdiDeviceImpl instance;
27     static std::mutex mutex;
28     std::lock_guard<std::mutex> lock(mutex);
29     {
30         if (!instance.Init()) {
31             HLOGE("hdi device get instances failed.");
32             return nullptr;
33         }
34     }
35     return &instance;
36 }
37 } // namespace Rosen
38 } // namespace OHOS
39