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- /*
- * awka.c --- some speciallized memory allocation routines
- *
- * $Log: awka.c,v $
- * Revision 1.2 89/03/31 13:26:15 david
- * GNU license
- *
- * Revision 1.1 89/03/22 21:04:00 david
- * Initial revision
- *
- */
-
- /*
- * Copyright (C) 1986, 1988, 1989 the Free Software Foundation, Inc.
- *
- * This file is part of GAWK, the GNU implementation of the
- * AWK Progamming Language.
- *
- * GAWK is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 1, or (at your option)
- * any later version.
- *
- * GAWK is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GAWK; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #include "awk.h"
-
- #define NODECHUNK 50
-
- NODE *nextfree = NULL;
- NODE *lastfree = NULL;
-
- NODE *
- newnode(ty)
- NODETYPE ty;
- {
- NODE *it;
- NODE *np;
-
- if (nextfree == lastfree) {
- emalloc(nextfree, NODE *, NODECHUNK * sizeof(NODE), "newnode");
- for (np = nextfree; np < &nextfree[NODECHUNK - 1]; np++)
- np->nextp = np + 1;
- np->nextp = lastfree;
- lastfree = np;
- }
- it = nextfree;
- nextfree = nextfree->nextp;
- it->type = ty;
- it->flags = MALLOC;
- return it;
- }
-
- freenode(it)
- NODE *it;
- {
- lastfree->nextp = it;
- it->nextp = NULL;
- lastfree = it;
- }
-