From dc1847996633ea9194a36b797e49f693c9f5fc72 Mon Sep 17 00:00:00 2001
From: grant <grant@pkgsrc.org>
Date: Thu, 11 Mar 2004 13:03:58 +0000
Subject: import the required bits of bootstrap-pkgsrc from 20040311.

---
 bootstrap/bmake/lst.lib/lstForEachFrom.c | 123 +++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 bootstrap/bmake/lst.lib/lstForEachFrom.c

(limited to 'bootstrap/bmake/lst.lib/lstForEachFrom.c')

diff --git a/bootstrap/bmake/lst.lib/lstForEachFrom.c b/bootstrap/bmake/lst.lib/lstForEachFrom.c
new file mode 100644
index 00000000000..66ed9d9b240
--- /dev/null
+++ b/bootstrap/bmake/lst.lib/lstForEachFrom.c
@@ -0,0 +1,123 @@
+/*	$NetBSD: lstForEachFrom.c,v 1.1.1.1 2004/03/11 13:04:17 grant Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1989, 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Adam de Boor.
+ *
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ */
+
+#ifdef MAKE_BOOTSTRAP
+static char rcsid[] = "$NetBSD: lstForEachFrom.c,v 1.1.1.1 2004/03/11 13:04:17 grant Exp $";
+#else
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)lstForEachFrom.c	8.1 (Berkeley) 6/6/93";
+#else
+__RCSID("$NetBSD: lstForEachFrom.c,v 1.1.1.1 2004/03/11 13:04:17 grant Exp $");
+#endif
+#endif /* not lint */
+#endif
+
+/*-
+ * lstForEachFrom.c --
+ *	Perform a given function on all elements of a list starting from
+ *	a given point.
+ */
+
+#include	"lstInt.h"
+
+/*-
+ *-----------------------------------------------------------------------
+ * Lst_ForEachFrom --
+ *	Apply the given function to each element of the given list. The
+ *	function should return 0 if traversal should continue and non-
+ *	zero if it should abort.
+ *
+ * Results:
+ *	None.
+ *
+ * Side Effects:
+ *	Only those created by the passed-in function.
+ *
+ *-----------------------------------------------------------------------
+ */
+/*VARARGS2*/
+void
+Lst_ForEachFrom (l, ln, proc, d)
+    Lst	    	    	l;
+    LstNode    	  	ln;
+    register int	(*proc) __P((ClientData, ClientData));
+    register ClientData	d;
+{
+    register ListNode	tln = (ListNode)ln;
+    register List 	list = (List)l;
+    register ListNode	next;
+    Boolean 	    	done;
+    int     	    	result;
+
+    if (!LstValid (list) || LstIsEmpty (list)) {
+	return;
+    }
+
+    do {
+	/*
+	 * Take care of having the current element deleted out from under
+	 * us.
+	 */
+
+	next = tln->nextPtr;
+
+	(void) tln->useCount++;
+	result = (*proc) (tln->datum, d);
+	(void) tln->useCount--;
+
+	/*
+	 * We're done with the traversal if
+	 *  - nothing's been added after the current node and
+	 *  - the next node to examine is the first in the queue or
+	 *    doesn't exist.
+	 */
+	done = (next == tln->nextPtr &&
+		(next == NilListNode || next == list->firstPtr));
+
+	next = tln->nextPtr;
+
+	if (tln->flags & LN_DELETED) {
+	    free((char *)tln);
+	}
+	tln = next;
+    } while (!result && !LstIsEmpty(list) && !done);
+
+}
+
-- 
cgit v1.2.3