uip_timer.lst

c8051f020_uip1.0.rar

C51 COMPILER V9.00   UIP_TIMER                                                             02/08/2010 20:58:32 PAGE 1   


C51 COMPILER V9.00, COMPILATION OF MODULE UIP_TIMER
OBJECT MODULE PLACED IN .\uip_timer.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ..\uip1.0\uip\uip_timer.c LARGE BROWSE INCDIR(..\uip1.0\apps;..\uip1.0\uip;
                    -..\cp2200;..\cp2200;..\uip1.0\apps\dhcpc;..\uip1.0\apps\httpd) DEBUG OBJECTEXTEND PRINT(.\uip_timer.lst) OBJECT(.\uip_ti
                    -mer.obj)

line level    source

   1          /**
   2           * \addtogroup timer
   3           * @{
   4           */
   5          
   6          /**
   7           * \file
   8           * Timer library implementation.
   9           * \author
  10           * Adam Dunkels <[e-mail]>
  11           */
  12          
  13          /*
  14           * Copyright (c) 2004, Swedish Institute of Computer Science.
  15           * All rights reserved.
  16           *
  17           * Redistribution and use in source and binary forms, with or without
  18           * modification, are permitted provided that the following conditions
  19           * are met:
  20           * 1. Redistributions of source code must retain the above copyright
  21           *    notice, this list of conditions and the following disclaimer.
  22           * 2. Redistributions in binary form must reproduce the above copyright
  23           *    notice, this list of conditions and the following disclaimer in the
  24           *    documentation and/or other materials provided with the distribution.
  25           * 3. Neither the name of the Institute nor the names of its contributors
  26           *    may be used to endorse or promote products derived from this software
  27           *    without specific prior written permission.
  28           *
  29           * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  30           * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  31           * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  32           * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  33           * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  34           * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  35           * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  36           * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  37           * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  38           * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  39           * SUCH DAMAGE.
  40           *
  41           * This file is part of the uIP TCP/IP stack
  42           *
  43           * Author: Adam Dunkels <[e-mail]>
  44           *
  45           * $Id: timer.c,v 1.2 2006/06/12 08:00:30 adam Exp $
  46           */
  47          
  48          #include "clock.h"
  49          #include "uip_timer.h"
  50          
  51          /*---------------------------------------------------------------------------*/
  52          /**
  53           * Set a timer.
C51 COMPILER V9.00   UIP_TIMER                                                             02/08/2010 20:58:32 PAGE 2   

  54           *
  55           * This function is used to set a timer for a time sometime in the
  56           * future. The function timer_expired() will evaluate to true after
  57           * the timer has expired.
  58           *
  59           * \param t A pointer to the timer
  60           * \param interval The interval before the timer expires.
  61           *
  62           */
  63          void
  64          timer_set(struct timer *t, clock_time_t interval)
  65          {
  66   1        t->interval = interval;
  67   1        t->start = clock_time();
  68   1      }
  69          /*---------------------------------------------------------------------------*/
  70          /**
  71           * Reset the timer with the same interval.
  72           *
  73           * This function resets the timer with the same interval that was
  74           * given to the timer_set() function. The start point of the interval
  75           * is the exact time that the timer last expired. Therefore, this
  76           * function will cause the timer to be stable over time, unlike the
  77           * timer_rester() function.
  78           *
  79           * \param t A pointer to the timer.
  80           *
  81           * \sa timer_restart()
  82           */
  83          void
  84          timer_reset(struct timer *t)
  85          {
  86   1        t->start += t->interval;
  87   1      }
  88          /*---------------------------------------------------------------------------*/
  89          /**
  90           * Restart the timer from the current point in time
  91           *
  92           * This function restarts a timer with the same interval that was
  93           * given to the timer_set() function. The timer will start at the
  94           * current time.
  95           *
  96           * \note A periodic timer will drift if this function is used to reset
  97           * it. For preioric timers, use the timer_reset() function instead.
  98           *
  99           * \param t A pointer to the timer.
 100           *
 101           * \sa timer_reset()
 102           */
 103          void
 104          timer_restart(struct timer *t)
 105          {
 106   1        t->start = clock_time();
 107   1      }
 108          /*---------------------------------------------------------------------------*/
 109          /**
 110           * Check if a timer has expired.
 111           *
 112           * This function tests if a timer has expired and returns true or
 113           * false depending on its status.
 114           *
 115           * \param t A pointer to the timer
C51 COMPILER V9.00   UIP_TIMER                                                             02/08/2010 20:58:32 PAGE 3   

 116           *
 117           * \return Non-zero if the timer has expired, zero otherwise.
 118           *
 119           */
 120          int
 121          timer_expired(struct timer *t)
 122          {
 123   1        return (clock_time_t)(clock_time() - t->start) >= (clock_time_t)t->interval;
 124   1      }
 125          /*---------------------------------------------------------------------------*/
 126          
 127          /** @} */


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    154    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----       9
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)