1*d90bee97SLionel Sambuc /* $NetBSD: memalloc.h,v 1.15 2008/02/15 17:26:06 matt Exp $ */ 2*d90bee97SLionel Sambuc 3*d90bee97SLionel Sambuc /*- 4*d90bee97SLionel Sambuc * Copyright (c) 1991, 1993 5*d90bee97SLionel Sambuc * The Regents of the University of California. All rights reserved. 6*d90bee97SLionel Sambuc * 7*d90bee97SLionel Sambuc * This code is derived from software contributed to Berkeley by 8*d90bee97SLionel Sambuc * Kenneth Almquist. 9*d90bee97SLionel Sambuc * 10*d90bee97SLionel Sambuc * Redistribution and use in source and binary forms, with or without 11*d90bee97SLionel Sambuc * modification, are permitted provided that the following conditions 12*d90bee97SLionel Sambuc * are met: 13*d90bee97SLionel Sambuc * 1. Redistributions of source code must retain the above copyright 14*d90bee97SLionel Sambuc * notice, this list of conditions and the following disclaimer. 15*d90bee97SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright 16*d90bee97SLionel Sambuc * notice, this list of conditions and the following disclaimer in the 17*d90bee97SLionel Sambuc * documentation and/or other materials provided with the distribution. 18*d90bee97SLionel Sambuc * 3. Neither the name of the University nor the names of its contributors 19*d90bee97SLionel Sambuc * may be used to endorse or promote products derived from this software 20*d90bee97SLionel Sambuc * without specific prior written permission. 21*d90bee97SLionel Sambuc * 22*d90bee97SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23*d90bee97SLionel Sambuc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24*d90bee97SLionel Sambuc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25*d90bee97SLionel Sambuc * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26*d90bee97SLionel Sambuc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27*d90bee97SLionel Sambuc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28*d90bee97SLionel Sambuc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29*d90bee97SLionel Sambuc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30*d90bee97SLionel Sambuc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31*d90bee97SLionel Sambuc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32*d90bee97SLionel Sambuc * SUCH DAMAGE. 33*d90bee97SLionel Sambuc * 34*d90bee97SLionel Sambuc * @(#)memalloc.h 8.2 (Berkeley) 5/4/95 35*d90bee97SLionel Sambuc */ 36*d90bee97SLionel Sambuc 37*d90bee97SLionel Sambuc struct stackmark { 38*d90bee97SLionel Sambuc struct stack_block *stackp; 39*d90bee97SLionel Sambuc char *stacknxt; 40*d90bee97SLionel Sambuc int stacknleft; 41*d90bee97SLionel Sambuc struct stackmark *marknext; 42*d90bee97SLionel Sambuc }; 43*d90bee97SLionel Sambuc 44*d90bee97SLionel Sambuc 45*d90bee97SLionel Sambuc extern char *stacknxt; 46*d90bee97SLionel Sambuc extern int stacknleft; 47*d90bee97SLionel Sambuc extern int sstrnleft; 48*d90bee97SLionel Sambuc extern int herefd; 49*d90bee97SLionel Sambuc 50*d90bee97SLionel Sambuc pointer ckmalloc(size_t); 51*d90bee97SLionel Sambuc pointer ckrealloc(pointer, int); 52*d90bee97SLionel Sambuc char *savestr(const char *); 53*d90bee97SLionel Sambuc pointer stalloc(int); 54*d90bee97SLionel Sambuc void stunalloc(pointer); 55*d90bee97SLionel Sambuc void setstackmark(struct stackmark *); 56*d90bee97SLionel Sambuc void popstackmark(struct stackmark *); 57*d90bee97SLionel Sambuc void growstackblock(void); 58*d90bee97SLionel Sambuc void grabstackblock(int); 59*d90bee97SLionel Sambuc char *growstackstr(void); 60*d90bee97SLionel Sambuc char *makestrspace(void); 61*d90bee97SLionel Sambuc void ungrabstackstr(char *, char *); 62*d90bee97SLionel Sambuc 63*d90bee97SLionel Sambuc 64*d90bee97SLionel Sambuc 65*d90bee97SLionel Sambuc #define stackblock() stacknxt 66*d90bee97SLionel Sambuc #define stackblocksize() stacknleft 67*d90bee97SLionel Sambuc #define STARTSTACKSTR(p) p = stackblock(), sstrnleft = stackblocksize() 68*d90bee97SLionel Sambuc #define STPUTC(c, p) (--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c))) 69*d90bee97SLionel Sambuc #define CHECKSTRSPACE(n, p) { if (sstrnleft < n) p = makestrspace(); } 70*d90bee97SLionel Sambuc #define USTPUTC(c, p) (--sstrnleft, *p++ = (c)) 71*d90bee97SLionel Sambuc #define STACKSTRNUL(p) (sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0')) 72*d90bee97SLionel Sambuc #define STUNPUTC(p) (++sstrnleft, --p) 73*d90bee97SLionel Sambuc #define STTOPC(p) p[-1] 74*d90bee97SLionel Sambuc #define STADJUST(amount, p) (p += (amount), sstrnleft -= (amount)) 75*d90bee97SLionel Sambuc #define grabstackstr(p) stalloc(stackblocksize() - sstrnleft) 76*d90bee97SLionel Sambuc 77*d90bee97SLionel Sambuc #define ckfree(p) free((pointer)(p)) 78