/*

 * Copyright (c) 2020 Huawei Device Co., Ltd.

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#include "feature.h"

#include "feature_impl.h"

#include "memory_adapter.h"



BOOL SAMGR_AddInterface(FeatureImpl *featureImpl, IUnknown *iUnknown)

{

    if (featureImpl == NULL || iUnknown == NULL || featureImpl->iUnknown != NULL) {

        return FALSE;

    }



    featureImpl->iUnknown = iUnknown;

    return TRUE;

}



IUnknown *SAMGR_DelInterface(FeatureImpl *featureImpl)

{

    if (featureImpl == NULL) {

        return NULL;

    }

    IUnknown *iUnknown = featureImpl->iUnknown;

    featureImpl->iUnknown = NULL;

    return iUnknown;

}



IUnknown *SAMGR_GetInterface(FeatureImpl *featureImpl)

{

    if (featureImpl == NULL) {

        return NULL;

    }

    return featureImpl->iUnknown;

}



BOOL SAMGR_IsNoInterface(FeatureImpl *featureImpl)

{

    return (BOOL)(featureImpl == NULL || featureImpl->iUnknown == NULL);

}



FeatureImpl *FEATURE_CreateInstance(Feature *feature)

{

    if (feature == NULL) {

        return NULL;

    }

    FeatureImpl *featureImpl = (FeatureImpl *)SAMGR_Malloc(sizeof(FeatureImpl));

    if (featureImpl == NULL) {

        return NULL;

    }

    featureImpl->feature = feature;

    featureImpl->iUnknown = NULL;

    return featureImpl;

}