services/audioflinger/DevicesFactoryHalInterface.h

/*
 * Copyright (C) 2016 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.
 */

#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H

#include <utils/Errors.h>
#include <utils/RefBase.h>

#include "DeviceHalInterface.h"

namespace android {

class DevicesFactoryHalInterface : public RefBase
{
  public:
    virtual ~DevicesFactoryHalInterface() {}

    // Opens a device with the specified name. To close the device, it is
    // necessary to release references to the returned object.
    virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device) = 0;

    static sp<DevicesFactoryHalInterface> create();

  protected:
    // Subclasses can not be constructed directly by clients.
    DevicesFactoryHalInterface() {}
};

} // namespace android

#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H