gistfile1.txt

/***************************************************************************
 *  Title: Kernel Memory Allocator
 * -------------------------------------------------------------------------
 *    Purpose: Kernel memory allocator based on the resource map algorithm
 *    Author: Stefan Birrer
 *    Version: $Revision: 1.2 $
 *    Last Modification: $Date: 2009/10/31 21:28:52 $
 *    File: $RCSfile: kma_rm.c,v $
 *    Copyright: 2004 Northwestern University
 ***************************************************************************/
/***************************************************************************
 *  ChangeLog:
 * -------------------------------------------------------------------------
 *    $Log: kma_rm.c,v $
 *    Revision 1.2  2009/10/31 21:28:52  jot836
 *    This is the current version of KMA project 3.
 *    It includes:
 *    - the most up-to-date handout (F'09)
 *    - updated skeleton including
 *        file-driven test harness,
 *        trace generator script,
 *        support for evaluating efficiency of algorithm (wasted memory),
 *        gnuplot support for plotting allocation and waste,
 *        set of traces for all students to use (including a makefile and README of the settings),
 *    - different version of the testsuite for use on the submission site, including:
 *        scoreboard Python scripts, which posts the top 5 scores on the course webpage
 *
 *    Revision 1.1  2005/10/24 16:07:09  sbirrer
 *    - skeleton
 *
 *    Revision 1.2  2004/11/05 15:45:56  sbirrer
 *    - added size as a parameter to kma_free
 *
 *    Revision 1.1  2004/11/03 23:04:03  sbirrer
 *    - initial version for the kernel memory allocator project
 *
 ***************************************************************************/
#ifdef KMA_RM
#define __KMA_IMPL__

/************System include***********************************************/
#include <assert.h>
#include <stdlib.h>

/************Private include**********************************************/
#include "kpage.h"
#include "kma.h"

/************Defines and Typedefs*****************************************/
/*  #defines and typedefs should have their names in all caps.
 *  Global variables begin with g. Global constants with k. Local
 *  variables should be in all lower case. When initializing
 *  structures and arrays, line everything up in neat columns.
 */
 typedef struct {
 	struct block* base;
 	int size;
 } block;


/************Global Variables*********************************************/
 unsigned long *base = NULL;

/************Function Prototypes******************************************/
 void init();
/************External Declaration*****************************************/

/**************Implementation***********************************************/
 void init()
 {
 	kpage_t *page = get_page();
 	base = (unsigned long *)page->ptr;
 	block* b = (block*) page->ptr;
 	b->base = page->ptr;
 	b->size = page->size;
 }




 void*
 kma_malloc(kma_size_t size)
 {
 	if(base == NULL)
 	{
 		init();
 	}
 	else if(size > 8192)
 	{
 		return NULL;
 	}
 	else
 	{

 	}

 }

 void
 kma_free(void* ptr, kma_size_t size)
 {

 }

#endif // KMA_RM