page.c

掌握如何用C来实现各种算法

/*****************************************************************************
*                                                                            *
*  -------------------------------- page.c --------------------------------  *
*                                                                            *
*****************************************************************************/

#include "clist.h"
#include "page.h"

/*****************************************************************************
*                                                                            *
*  ----------------------------- replace_page -----------------------------  *
*                                                                            *
*****************************************************************************/

int replace_page(CListElmt **current) {

/*****************************************************************************
*                                                                            *
*  Circle through the list of pages until one is found to replace.           *
*                                                                            *
*****************************************************************************/

while (((Page *)(*current)->data)->reference != 0) {

   ((Page *)(*current)->data)->reference = 0;
   *current = clist_next(*current);

}

return ((Page *)(*current)->data)->number;

}