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