1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/*	$NetBSD: memalloc.h,v 1.14 2003/08/07 09:05:34 agc Exp $	*/
2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/*-
4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copyright (c) 1991, 1993
5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *	The Regents of the University of California.  All rights reserved.
6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *
7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * This code is derived from software contributed to Berkeley by
8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Kenneth Almquist.
9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *
10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Redistribution and use in source and binary forms, with or without
11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * modification, are permitted provided that the following conditions
12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * are met:
13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 1. Redistributions of source code must retain the above copyright
14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *    notice, this list of conditions and the following disclaimer.
15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright
16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *    notice, this list of conditions and the following disclaimer in the
17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *    documentation and/or other materials provided with the distribution.
18dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 3. Neither the name of the University nor the names of its contributors
19dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *    may be used to endorse or promote products derived from this software
20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *    without specific prior written permission.
21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *
22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * SUCH DAMAGE.
33dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *
34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *	@(#)memalloc.h	8.2 (Berkeley) 5/4/95
35dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */
36dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
37dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct stackmark {
38dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project	struct stack_block *stackp;
39dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project	char *stacknxt;
40dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project	int stacknleft;
41dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project	struct stackmark *marknext;
42dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project};
43dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
44dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
45dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectextern char *stacknxt;
46dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectextern int stacknleft;
47dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectextern int sstrnleft;
48dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectextern int herefd;
49dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
50dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectpointer ckmalloc(int);
51dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectpointer ckrealloc(pointer, int);
52dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectchar *savestr(const char *);
53dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectpointer stalloc(int);
54dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid stunalloc(pointer);
55dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid setstackmark(struct stackmark *);
56dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid popstackmark(struct stackmark *);
57dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid growstackblock(void);
58dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid grabstackblock(int);
59dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectchar *growstackstr(void);
60dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectchar *makestrspace(void);
61dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid ungrabstackstr(char *, char *);
62dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
63dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
64dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define stackblock() stacknxt
66dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define stackblocksize() stacknleft
67dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define STARTSTACKSTR(p)	p = stackblock(), sstrnleft = stackblocksize()
68dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define STPUTC(c, p)	(--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c)))
69dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define CHECKSTRSPACE(n, p)	{ if (sstrnleft < n) p = makestrspace(); }
70dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define USTPUTC(c, p)	(--sstrnleft, *p++ = (c))
71dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define STACKSTRNUL(p)	(sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0'))
72dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define STUNPUTC(p)	(++sstrnleft, --p)
73dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define STTOPC(p)	p[-1]
74dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define STADJUST(amount, p)	(p += (amount), sstrnleft -= (amount))
75dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define grabstackstr(p)	stalloc(stackblocksize() - sstrnleft)
76dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project
77dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define ckfree(p)	free((pointer)(p))