Home | History | Annotate | Line # | Download | only in libz
zalloc.c revision 1.6
      1  1.6    martin /* $NetBSD: zalloc.c,v 1.6 2008/04/28 20:24:06 martin Exp $ */
      2  1.1    simonb 
      3  1.1    simonb /*-
      4  1.1    simonb  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  1.1    simonb  * All rights reserved.
      6  1.1    simonb  *
      7  1.1    simonb  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1    simonb  * by Simon Burge.
      9  1.1    simonb  *
     10  1.1    simonb  * Redistribution and use in source and binary forms, with or without
     11  1.1    simonb  * modification, are permitted provided that the following conditions
     12  1.1    simonb  * are met:
     13  1.1    simonb  * 1. Redistributions of source code must retain the above copyright
     14  1.1    simonb  *    notice, this list of conditions and the following disclaimer.
     15  1.1    simonb  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1    simonb  *    notice, this list of conditions and the following disclaimer in the
     17  1.1    simonb  *    documentation and/or other materials provided with the distribution.
     18  1.1    simonb  *
     19  1.1    simonb  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.1    simonb  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.1    simonb  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.1    simonb  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.1    simonb  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.1    simonb  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.1    simonb  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.1    simonb  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.1    simonb  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.1    simonb  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.1    simonb  * POSSIBILITY OF SUCH DAMAGE.
     30  1.1    simonb  */
     31  1.1    simonb 
     32  1.1    simonb 
     33  1.1    simonb #include "zutil.h"
     34  1.3   thorpej #include <lib/libsa/stand.h>
     35  1.1    simonb 
     36  1.1    simonb /*
     37  1.1    simonb  * A simple implementation of zcalloc and zcfree in terms of the libsa
     38  1.1    simonb  * alloc and free.
     39  1.1    simonb  */
     40  1.1    simonb 
     41  1.1    simonb voidpf
     42  1.5   tsutsui zcalloc(voidpf opaque, unsigned int items, unsigned int size)
     43  1.1    simonb {
     44  1.5   tsutsui 	unsigned int totalsize;
     45  1.1    simonb 
     46  1.1    simonb 	totalsize = items * size;
     47  1.1    simonb 	opaque = alloc(totalsize);
     48  1.1    simonb 	if (opaque != NULL)
     49  1.1    simonb 		bzero(opaque, totalsize);
     50  1.5   tsutsui 	return opaque;
     51  1.1    simonb }
     52  1.1    simonb 
     53  1.1    simonb void
     54  1.5   tsutsui zcfree(voidpf opaque, voidpf ptr)
     55  1.1    simonb {
     56  1.5   tsutsui 
     57  1.4  christos 	dealloc(ptr, 0);	/* XXX: size not known */
     58  1.1    simonb }
     59