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Diffstat (limited to 'sh/memalloc.h')
| -rw-r--r-- | sh/memalloc.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sh/memalloc.h b/sh/memalloc.h new file mode 100644 index 0000000..e793880 --- /dev/null +++ b/sh/memalloc.h @@ -0,0 +1,77 @@ +/* $NetBSD: memalloc.h,v 1.14 2003/08/07 09:05:34 agc 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; + struct stackmark *marknext; +}; + + +extern char *stacknxt; +extern int stacknleft; +extern int sstrnleft; +extern int herefd; + +pointer ckmalloc(int); +pointer ckrealloc(pointer, int); +char *savestr(const char *); +pointer stalloc(int); +void stunalloc(pointer); +void setstackmark(struct stackmark *); +void popstackmark(struct stackmark *); +void growstackblock(void); +void grabstackblock(int); +char *growstackstr(void); +char *makestrspace(void); +void ungrabstackstr(char *, char *); + + + +#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(), *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(stackblocksize() - sstrnleft) + +#define ckfree(p) free((pointer)(p)) |