si_list.c

是一个手机功能的模拟程序

/*
 * Copyright (C) Ericsson Mobile Communications AB, 2000.
 * Licensed to AU-System AB.
 * All rights reserved.
 *
 * This software is covered by the license agreement between
 * the end user and AU-System AB, and may be used and copied
 * only in accordance with the terms of the said agreement.
 *
 * Neither Ericsson Mobile Communications AB nor AU-System AB
 * assumes any responsibility or liability for any errors or inaccuracies in
 * this software, or any consequential, incidental or indirect damage arising
 * out of the use of the Generic WAP Client software.
 */
#include "si_list.h"

/**********************************************************************

Funktioner f鰎 listhantering:
   f_lh_newhead
   Skapar en ny tom lista p_h

   f_lh_newlink
   skapar ett nytt element p_l

   f_lh_out
   Om elementet p_l tillh鰎 en lista tas den ur listan.
   p_l 鋘dras inte i 鰒rigt

   f_lh_precede
   S鋞ter in p_l f鰎e p_x i listan d鋜 p_x finns

   f_lh_follow
   S鋞ter in p_l efter p_x i listan d鋜 p_x finns

   f_lh_into
   S鋞ter in p_l sist i listan p_h

   f_lh_into_as_first
   S鋞ter in p_l f鰎st i listan p_h

   f_lh_lpred
   Ger en pekare till det element som ligger f鰎e p_l i listan,
   om p_l 鋜 f鰎st returneras NULL

   f_lh_lsuc
   Ger en pekare till det element som ligger efter p_l i listan
   om p_l 鋜 sist returneras NULL

   f_lh_empty
   Returnerar 1 om listan 鋜 tom, annars 0

   f_lh_first
   Returnerar f鰎sta elementet i listan, om tom : NULL

   f_lh_last
   Returnerar sista elementet i listan, om tom : NULL

   f_lh_cardinal
   Returnerar antalet element i listan

   f_lh_disposelink
   Raderar ut elementet p_l

   f_lh_clear
   Rensar ut listan utom huvudet p_h

   f_lh_disposehead
   Raderar ut hela listan inklusive p_h


*************************************************************************/




/************************************************************************
VOID f_lh_newhead (t_head *p_h) {};

Purpose:
Skapar en ny tom lista p_h

Limitations:
-

Return:
-

************************************************************************/
VOID f_lh_newhead (t_head *p_h) {

		*p_h = NULL;
		*p_h = (t_head) OSConnectorAlloc( sizeof(t_element) );

	 if (*p_h != NULL) {
		 (*p_h)->kind = headkind;
		 (*p_h)->pre = *p_h;
		 (*p_h)->suc = *p_h;
		 (*p_h)->data = NULL;
	 }
}



/************************************************************************
VOID f_lh_newlink (t_link *p_l)

Purpose:
Skapar ett nytt element p_l

Limitations:
-

Return:
-

************************************************************************/
VOID f_lh_newlink (t_link *p_l) {

	*p_l = NULL;
	*p_l = (t_link) OSConnectorAlloc( sizeof(t_element) );

	if (*p_l != NULL) {
   (*p_l)->kind = linkkind;
   (*p_l)->pre = NULL;
   (*p_l)->suc = NULL;
	 (*p_l)->data = NULL;
	}
}


/************************************************************************
VOID f_lh_out (t_link *p_l)

Purpose:
Om elementet p_l tillh鰎 en lista tas den ur listan.
p_l 鋘dras inte i 鰒rigt

Limitations:
-

Return:
-

************************************************************************/
VOID f_lh_out (t_link *p_l) {

   if ( (*p_l)->pre != NULL) {
   /* D