--- ray/src/common/savqstr.c 1991/11/12 16:56:07 2.1
+++ ray/src/common/savqstr.c 2003/02/22 02:07:22 2.3
@@ -1,35 +1,166 @@
-/* Copyright (c) 1991 Regents of the University of California */
-
#ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char RCSid[] = "$Id: savqstr.c,v 2.3 2003/02/22 02:07:22 greg Exp $";
#endif
-
/*
- * Quick and dirty string saver.
+ * Save unshared strings.
+ *
+ * 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
+ * .
+ */
-extern char *strcpy(), *strcat(), *bmalloc();
+#include
+extern void eputs();
+extern void quit();
+#if 1
+
char *
savqstr(s) /* save a private string */
-char *s;
+register char *s;
{
register char *cp;
+ char *newp;
- if ((cp = bmalloc(strlen(s)+1)) == NULL) {
+ for (cp = s; *cp++; ) /* compute strlen()+1 */
+ ;
+ newp = (char *)malloc(cp-s);
+ if (newp == NULL) {
eputs("out of memory in savqstr");
quit(1);
}
- (void)strcpy(cp, s);
- return(cp);
+ for (cp = newp; *cp++ = *s++; ) /* inline strcpy() */
+ ;
+ return(newp); /* return new location */
}
+void
freeqstr(s) /* free a private string */
char *s;
{
+ free((void *)s);
+}
+
+#else
+
+/*
+ * Save unshared strings, packing them together into
+ * large blocks to optimize paging in VM environments.
+ */
+
+#ifdef BIGMEM
+#ifndef MINBLOCK
+#define MINBLOCK (1<<12) /* minimum allocation block size */
+#endif
+#ifndef MAXBLOCK
+#define MAXBLOCK (1<<16) /* maximum allocation block size */
+#endif
+#else
+#ifndef MINBLOCK
+#define MINBLOCK (1<<10) /* minimum allocation block size */
+#endif
+#ifndef MAXBLOCK
+#define MAXBLOCK (1<<14) /* maximum allocation block size */
+#endif
+#endif
+
+extern char *bmalloc();
+
+
+char *
+savqstr(s) /* save a private string */
+register char *s;
+{
+ static char *curp = NULL; /* allocated memory pointer */
+ static unsigned nrem = 0; /* bytes remaining in block */
+ static unsigned nextalloc = MINBLOCK; /* next block size */
+ register char *cp;
+ register unsigned n;
+
+ for (cp = s; *cp++; ) /* compute strlen()+1 */
+ ;
+ if ((n = cp-s) > nrem) { /* do we need more core? */
+ bfree(curp, nrem); /* free remnant */
+ while (n > nextalloc)
+ nextalloc <<= 1;
+ if ((curp = bmalloc(nrem=nextalloc)) == NULL) {
+ eputs("out of memory in savqstr");
+ quit(1);
+ }
+ if ((nextalloc <<= 1) > MAXBLOCK) /* double block size */
+ nextalloc = MAXBLOCK;
+ }
+ for (cp = curp; *cp++ = *s++; ) /* inline strcpy() */
+ ;
+ s = curp; /* update allocation info. */
+ curp = cp;
+ nrem -= n;
+ return(s); /* return new location */
+}
+
+
+void
+freeqstr(s) /* free a private string (not recommended) */
+char *s;
+{
bfree(s, strlen(s)+1);
}
+
+#endif