/* mmgr/ph_mmgr.h.  Generated from mmgr.h.in by configure. */

/*
**  Copyright 2000-2004 University of Illinois Board of Trustees
**  Copyright 2000-2004 Mark D. Roth
**  All rights reserved.
**
**  ph_buffer.h - header file for buffer module
**
**  Mark D. Roth <roth@uiuc.edu>
**  Campus Information Technologies and Educational Services
**  University of Illinois at Urbana-Champaign
*/

#ifndef ph_MMGR_H
#define ph_MMGR_H

#include <sys/types.h>


/* bits for mb_flags field */
#define ph_MMGR_ARRAY	256	/* array (elsize * nelem) */

typedef void (*ph_free_func_t)(void *);

struct ph_memblock
{
	unsigned long mb_flags;
	void *mb_ptr;
	size_t mb_elsize;
	size_t mb_nelem;
	ph_free_func_t mb_freefunc;
};
typedef struct ph_memblock ph_memblock_t;

#define ph_mmgr_ptr(bp)	((bp)->mb_ptr)
#define ph_mmgr_size(bp)	((bp)->mb_nelem * (bp)->mb_elsize)


typedef struct ph_mmgr *ph_mmgr_t;


int ph_mmgr_init(ph_mmgr_t *);

void ph_mmgr_cleanup(ph_mmgr_t);

int ph_mmgr_malloc(ph_mmgr_t,
			      unsigned long,
			      size_t,
			      size_t,
			      ph_free_func_t,
			      ph_memblock_t **);

int ph_mmgr_register(ph_mmgr_t,
				void *,
				ph_free_func_t,
				ph_memblock_t **);

int ph_mmgr_array_add(ph_memblock_t *,
				 size_t);

int ph_mmgr_realloc(ph_memblock_t *,
			       size_t);

int ph_mmgr_free(ph_memblock_t *,
			    int);

#endif /* ! ph_MMGR_H */