text: /*----------------------------------------------------------------------------
   * Copyright (c) <2016-2018>, <Huawei Technologies Co., Ltd>
   * All rights reserved.
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   * 1. Redistributions of source code must retain the above copyright notice, this list of
   * conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice, this list
   * of conditions and the following disclaimer in the documentation and/or other materials
   * provided with the distribution.
   * 3. Neither the name of the copyright holder nor the names of its contributors may be used
   * to endorse or promote products derived from this software without specific prior written
   * permission.
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *---------------------------------------------------------------------------*/
  /*----------------------------------------------------------------------------
   * Notice of Export Control Law
   * ===============================================
   * Huawei LiteOS may be subject to applicable export control laws and regulations, which might
   * include those applicable to Huawei LiteOS of U.S. and the country in which you are located.
   * Import, export and usage of Huawei LiteOS in any manner by you shall be in compliance with such
   * applicable export control laws and regulations.
   *---------------------------------------------------------------------------*/
  
  #ifdef LWM2M_CLIENT_MODE
  #include "util_timer.h"
  #include "liblwm2m.h"
  
  void timer_init(util_timer_t *timer, time_t interval, void(*callback)(void *param), void *param)
  {
      timer->expireTime = lwm2m_gettime() + interval;
      timer->interval = interval;
      timer->startFlag = false;
      timer->callback = callback;
      timer->param = param;
  }
  
  void timer_start(util_timer_t *timer)
  {
      timer->startFlag = true;
  }
  
  void timer_stop(util_timer_t *timer)
  {
      timer->startFlag = false;
  }
  void timer_step(util_timer_t *timer)
  {
      time_t current;
  
      if (!timer->startFlag)
      {
          return;
      }
  
      current = lwm2m_gettime();
      if (current < timer->expireTime)
      {
          return;
      }
  
      if (timer->callback)
      {
          timer->callback(timer->param);
      }
  
      timer->expireTime = current + timer->interval;
  }
  
  #endif // LWM2M_CLIENT_MODE
  
  