--- ray/src/common/bmalloc.c 1992/03/10 15:32:00 2.2
+++ ray/src/common/bmalloc.c 2003/02/22 02:07:21 2.3
@@ -1,44 +1,98 @@
-/* Copyright (c) 1991 Regents of the University of California */
-
#ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char RCSid[] = "$Id: bmalloc.c,v 2.3 2003/02/22 02:07:21 greg Exp $";
#endif
-
/*
* Bmalloc provides basic memory allocation without overhead (no free lists).
* Use only to take the load off of malloc for all those
* piddling little requests that you never expect to free.
* Bmalloc defers to malloc for big requests.
* Bfree should hand memory to bmalloc, but it usually fails here.
+ *
+ * External symbols declared in standard.h
*/
-#define NULL 0
+/* ====================================================================
+ * The Radiance Software License, Version 1.0
+ *
+ * Copyright (c) 1990 - 2002 The Regents of the University of California,
+ * through Lawrence Berkeley National Laboratory. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ * if any, must include the following acknowledgment:
+ * "This product includes Radiance software
+ * (http://radsite.lbl.gov/)
+ * developed by the Lawrence Berkeley National Laboratory
+ * (http://www.lbl.gov/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
+ * and "The Regents of the University of California" must
+ * not be used to endorse or promote products derived from this
+ * software without prior written permission. For written
+ * permission, please contact radiance@radsite.lbl.gov.
+ *
+ * 5. Products derived from this software may not be called "Radiance",
+ * nor may "Radiance" appear in their name, without prior written
+ * permission of Lawrence Berkeley National Laboratory.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of Lawrence Berkeley National Laboratory. For more
+ * information on Lawrence Berkeley National Laboratory, please see
+ * .
+ */
+#include
+
#ifndef MBLKSIZ
#define MBLKSIZ 16376 /* size of memory allocation block */
#endif
#define WASTEFRAC 12 /* don't waste more than a fraction */
-#ifndef ALIGN
-#define ALIGN int /* type for alignment */
+#ifndef ALIGNT
+#define ALIGNT double /* type for alignment */
#endif
-#define BYTES_WORD sizeof(ALIGN)
+#define BYTES_WORD sizeof(ALIGNT)
-extern char *malloc();
-
static char *bposition = NULL;
-static unsigned nremain = 0;
+static unsigned int nremain = 0;
char *
bmalloc(n) /* allocate a block of n bytes */
-register unsigned n;
+register unsigned int n;
{
if (n > nremain && (n > MBLKSIZ || nremain > MBLKSIZ/WASTEFRAC))
return(malloc(n)); /* too big */
n = (n+(BYTES_WORD-1))&~(BYTES_WORD-1); /* word align */
- if (n > nremain && (bposition = malloc(nremain = MBLKSIZ)) == NULL) {
+ if (n > nremain && (bposition = (char *)malloc(nremain = MBLKSIZ)) == NULL) {
nremain = 0;
return(NULL);
}
@@ -48,13 +102,14 @@ register unsigned n;
}
+void
bfree(p, n) /* free random memory */
register char *p;
-register unsigned n;
+register unsigned int n;
{
- register unsigned bsiz;
+ register unsigned int bsiz;
/* check alignment */
- bsiz = BYTES_WORD - ((unsigned)p&(BYTES_WORD-1));
+ bsiz = BYTES_WORD - ((unsigned int)p&(BYTES_WORD-1));
if (bsiz < BYTES_WORD) {
p += bsiz;
n -= bsiz;