mem.h

一个操作系统的源代码

/** mem.h                                 
 **                                                              
 ** Original Author: Kasper Verdich Lund                         
 ** Date: 10.26.99     
 ** 
 ** Description:
 ** Header file for memory allocation routines     
 **                                       
 ** Revision History: 
 ** First version     
 **
 ** 0.0.1 10.26.99 Kasper Verdich Lund - (no comments)
 **
 ** This program is free software, you can redistribute it and/orsb
 ** modify it under the terms of the GNU General Public License  
 ** as published by the Free Software Foundation; either version 
 ** 2 of the License, or (at your option) any later version.     
 **                                                              
 ** This program is distributed in the hope that it will be      
 ** useful, but WITHOUT ANY WARRANTY; without even the implied   
 ** warranty or MERCHANTABILITY or FITNESS FOR A PARTICULAR      
 ** PURPOSE.  See the GNU General Public License for more       
 ** details.                                                     
 **                                                              
 ** You should have received a copy of the GNU General Public    
 ** License along with this program; if not, write to the        
 ** Free Software Foundation, Inc., 59 Temple Place, Suite 330,  
 ** Boston, MA 02111-1307 USA                                    
 **                                                              
 *********************************************************Apostle OS**/

#ifndef __MALLOC_H_
#define __MALLOC_H_

#include <types.h>

void *sbrk(size_t increment);
void *malloc(size_t size);
void *calloc(size_t nmemb, size_t size);
void free(void *ptr);

void *pmalloc(void);
void pfree(void *ptr);
void *p2malloc(void);	/* allocate 2 pages, needed for pagetables */
void p2free(void *ptr);	/* free 2 pages, needed for page tables */
void psetup(dword available, dword used);

#endif /* __MALLOC_H_ */