/*
 * Copyright (c) 2015 ARM Limited. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 * 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 M2M_TIMER_OBSERVER_H
#define M2M_TIMER_OBSERVER_H

/**
 *  @brief M2MTimerObserver
 *  Observer class for indicating the timer expiry to the parent class.
 */
class M2MTimerObserver
{
public:
    /**
      * @enum Defines the types of timer
      * that can be created for mbed Client.
      */
    typedef enum {
        Notdefined,
        Registration,
        NsdlExecution,
        PMinTimer,
        PMaxTimer,
        Dtls,
        QueueSleep
    }Type;

    /**
    * Indicates that the time has expired.
    * @param type, Type of timer that has expired.
    */
    virtual void timer_expired(M2MTimerObserver::Type type =
                               M2MTimerObserver::Notdefined) = 0;
};

#endif // M2M_TIMER_OBSERVER_H
