/* $NetBSD: memalloc.h,v 1.18.2.1 2021/11/06 13:35:43 martin Exp $ */ /*- * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Kenneth Almquist. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS 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 THE REGENTS OR 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. * * @(#)memalloc.h 8.2 (Berkeley) 5/4/95 */ struct stackmark { struct stack_block *stackp; char *stacknxt; int stacknleft; int sstrnleft; struct stackmark *marknext; }; extern char *stacknxt; extern int stacknleft; extern int sstrnleft; extern int herefd; pointer ckmalloc(size_t); pointer ckrealloc(pointer, int); char *savestr(const char *); pointer stalloc(int); void stunalloc(pointer); void setstackmark(struct stackmark *); void popstackmark(struct stackmark *); void rststackmark(struct stackmark *); void growstackblock(void); void grabstackblock(int); char *growstackstr(void); char *makestrspace(void); void ungrabstackstr(char *, char *); char *ststrcat(size_t *, ...); #define STSTRC_END ((const char *)0) #define stackblock() stacknxt #define stackblocksize() stacknleft #define STARTSTACKSTR(p) p = stackblock(), sstrnleft = stackblocksize() #define STPUTC(c, p) (--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c))) #define CHECKSTRSPACE(n, p) { if (sstrnleft < n) p = makestrspace(); } #define USTPUTC(c, p) (--sstrnleft, *p++ = (c)) #define STACKSTRNUL(p) (sstrnleft == 0? (p = growstackstr(), sstrnleft++, *p = '\0') : (*p = '\0')) #define STUNPUTC(p) (++sstrnleft, --p) #define STTOPC(p) p[-1] #define STADJUST(amount, p) (p += (amount), sstrnleft -= (amount)) #define grabstackstr(p) stalloc((p) - stackblock()) #define ckfree(p) free((pointer)(p))