1 /*
2  * Copyright (c) 2020 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 #ifndef LITE_FEATUREIMPL_H
17 #define LITE_FEATUREIMPL_H
18 
19 #include "common.h"
20 #include "iunknown.h"
21 #include "feature.h"
22 
23 #ifdef __cplusplus
24 #if __cplusplus
25 extern "C" {
26 #endif
27 #endif
28 typedef struct FeatureImpl FeatureImpl;
29 
30 struct FeatureImpl {
31     Feature *feature;
32     IUnknown *iUnknown;
33 };
34 
IsInvalidFeature(Feature * feature)35 inline static BOOL IsInvalidFeature(Feature *feature)
36 {
37     return (feature == NULL || feature->GetName == NULL || feature->OnInitialize == NULL ||
38             feature->OnMessage == NULL || feature->OnStop == NULL);
39 }
40 
IsInvalidIUnknown(IUnknown * iUnknown)41 inline static BOOL IsInvalidIUnknown(IUnknown *iUnknown)
42 {
43     return (iUnknown == NULL || iUnknown->QueryInterface == NULL || iUnknown->AddRef == NULL ||
44             iUnknown->Release == NULL);
45 }
46 BOOL SAMGR_AddInterface(FeatureImpl *featureImpl, IUnknown *iUnknown);
47 IUnknown *SAMGR_DelInterface(FeatureImpl *featureImpl);
48 IUnknown *SAMGR_GetInterface(FeatureImpl *featureImpl);
49 BOOL SAMGR_IsNoInterface(FeatureImpl *featureImpl);
50 FeatureImpl *FEATURE_CreateInstance(Feature *feature);
51 #ifdef __cplusplus
52 #if __cplusplus
53 }
54 #endif
55 #endif
56 
57 #endif // LITE_FEATUREIMPL_H
58