#ifndef lint
static const char RCSid[] = "$Id: savqstr.c,v 2.3 2003/02/22 02:07:22 greg Exp $";
#endif
/*
* Save unshared strings.
*
* External symbols declared in standard.h
*/
/* ====================================================================
* 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
extern void eputs();
extern void quit();
#if 1
char *
savqstr(s) /* save a private string */
register char *s;
{
register char *cp;
char *newp;
for (cp = s; *cp++; ) /* compute strlen()+1 */
;
newp = (char *)malloc(cp-s);
if (newp == NULL) {
eputs("out of memory in savqstr");
quit(1);
}
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