/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* alloc.c -- memory allocation wrapper functions, replacable in more
* constrained environments, such as within a DE.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdlib.h>
#include <string.h>
#include "alloc.h"
#include "out.h"
#include "stats.h"
static struct stats *Malloctotal;
static struct stats *Malloccount;
void
alloc_init(void)
{
Malloctotal = stats_new_counter("alloc.total", "bytes allocated", 1);
Malloccount = stats_new_counter("alloc.calls", "total calls", 1);
}
void
alloc_fini(void)
{
struct stats *mt, *mc;
mt = Malloctotal;
mc = Malloccount;
Malloctotal = NULL;
Malloccount = NULL;
stats_delete(mt);
stats_delete(mc);
}
/*
* alloc_malloc -- a malloc() with checks
*
* this routine is typically called via the MALLOC() macro in alloc.h
*/
void *
alloc_malloc(size_t nbytes, const char *fname, int line)
{
void *retval = malloc(nbytes);
if (retval == NULL)
outfl(O_DIE, fname, line, "malloc: out of memory");
if (Malloctotal)
stats_counter_add(Malloctotal, nbytes);
if (Malloccount)
stats_counter_bump(Malloccount);
return (retval);
}
/*
* alloc_realloc -- a realloc() with checks
*
* this routine is typically called via the REALLOC() macro in alloc.h
*/
void *
alloc_realloc(void *ptr, size_t nbytes, const char *fname, int line)
{
void *retval = realloc(ptr, nbytes);
if (retval == NULL)
out(O_DIE, fname, line, "realloc: out of memory");
return (retval);
}
/*
* alloc_strdup -- a strdup() with checks
*
* this routine is typically called via the STRDUP() macro in alloc.h
*/
char *
alloc_strdup(const char *ptr, const char *fname, int line)
{
char *retval = strdup(ptr);
if (retval == NULL)
outfl(O_DIE, fname, line, "strdup: out of memory");
return (retval);
}
/*
* alloc_free -- a free() with checks
*
* this routine is typically called via the FREE() macro in alloc.h
*/
/*ARGSUSED1*/
void
alloc_free(void *ptr, const char *fname, int line)
{
/* nothing to check in this version */
free(ptr);
}
/*
* variants that don't maintain size in header - saves space
*/
void *
alloc_xmalloc(size_t nbytes)
{
void *retval;
retval = malloc(nbytes);
if (retval == NULL)
out(O_DIE, "malloc: out of memory");
if (Malloctotal)
stats_counter_add(Malloctotal, nbytes);
if (Malloccount)
stats_counter_bump(Malloccount);
return (retval);
}
/*ARGSUSED*/
void
alloc_xfree(void *ptr, size_t size)
{
free(ptr);
}