automotive/can/1.0/default/CloseHandle.cpp

/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * 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 "CloseHandle.h"

namespace android {
namespace hardware {
namespace automotive {
namespace can {
namespace V1_0 {
namespace implementation {

CloseHandle::CloseHandle(Callback callback) : mCallback(callback) {}

CloseHandle::~CloseHandle() {
    close();
}

Return<void> CloseHandle::close() {
    const auto wasClosed = mIsClosed.exchange(true);
    if (wasClosed) return {};

    if (mCallback != nullptr) mCallback();
    return {};
}

}  // namespace implementation
}  // namespace V1_0
}  // namespace can
}  // namespace automotive
}  // namespace hardware
}  // namespace android