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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*	Copyright (c) 1988 AT&T	*/
     23 /*	  All Rights Reserved  	*/
     24 
     25 
     26 #ifndef _MALLOC_H
     27 #define	_MALLOC_H
     28 
     29 #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.7	*/
     30 
     31 #include <sys/types.h>
     32 
     33 #ifdef	__cplusplus
     34 extern "C" {
     35 #endif
     36 
     37 /*
     38  *	Constants defining mallopt operations
     39  */
     40 #define	M_MXFAST	1	/* set size of blocks to be fast */
     41 #define	M_NLBLKS	2	/* set number of block in a holding block */
     42 #define	M_GRAIN		3	/* set number of sizes mapped to one, for */
     43 				/* small blocks */
     44 #define	M_KEEP		4	/* retain contents of block after a free */
     45 				/* until another allocation */
     46 /*
     47  *	structure filled by
     48  */
     49 struct mallinfo  {
     50 	unsigned long arena;	/* total space in arena */
     51 	unsigned long ordblks;	/* number of ordinary blocks */
     52 	unsigned long smblks;	/* number of small blocks */
     53 	unsigned long hblks;	/* number of holding blocks */
     54 	unsigned long hblkhd;	/* space in holding block headers */
     55 	unsigned long usmblks;	/* space in small blocks in use */
     56 	unsigned long fsmblks;	/* space in free small blocks */
     57 	unsigned long uordblks;	/* space in ordinary blocks in use */
     58 	unsigned long fordblks;	/* space in free ordinary blocks */
     59 	unsigned long keepcost;	/* cost of enabling keep option */
     60 };
     61 
     62 #if defined(__STDC__)
     63 
     64 void *malloc(size_t);
     65 void free(void *);
     66 void *realloc(void *, size_t);
     67 int mallopt(int, int);
     68 struct mallinfo mallinfo(void);
     69 void *calloc(size_t, size_t);
     70 
     71 #else
     72 
     73 void *malloc();
     74 void free();
     75 void *realloc();
     76 int mallopt();
     77 struct mallinfo mallinfo();
     78 void *calloc();
     79 
     80 #endif	/* __STDC__ */
     81 
     82 #ifdef	__cplusplus
     83 }
     84 #endif
     85 
     86 #endif	/* _MALLOC_H */
     87