malloc.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#ifndef _MALLOC_H
#define _MALLOC_H
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.7 */
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Constants defining mallopt operations
*/
#define M_MXFAST 1 /* set size of blocks to be fast */
#define M_NLBLKS 2 /* set number of block in a holding block */
#define M_GRAIN 3 /* set number of sizes mapped to one, for */
/* small blocks */
#define M_KEEP 4 /* retain contents of block after a free */
/* until another allocation */
/*
* structure filled by
*/
struct mallinfo {
unsigned long arena; /* total space in arena */
unsigned long ordblks; /* number of ordinary blocks */
unsigned long smblks; /* number of small blocks */
unsigned long hblks; /* number of holding blocks */
unsigned long hblkhd; /* space in holding block headers */
unsigned long usmblks; /* space in small blocks in use */
unsigned long fsmblks; /* space in free small blocks */
unsigned long uordblks; /* space in ordinary blocks in use */
unsigned long fordblks; /* space in free ordinary blocks */
unsigned long keepcost; /* cost of enabling keep option */
};
#if defined(__STDC__)
void *malloc(size_t);
void free(void *);
void *realloc(void *, size_t);
int mallopt(int, int);
struct mallinfo mallinfo(void);
void *calloc(size_t, size_t);
#else
void *malloc();
void free();
void *realloc();
int mallopt();
struct mallinfo mallinfo();
void *calloc();
#endif /* __STDC__ */
#ifdef __cplusplus
}
#endif
#endif /* _MALLOC_H */