Initial import of the CDE 2.1.30 sources from the Open Group.

cde/lib/tt/demo/CoEd/libCoEd/CoEdChangeQueue.C

@@ -0,0 +1,58 @@
+//%%  (c) Copyright 1993, 1994 Hewlett-Packard Company			
+//%%  (c) Copyright 1993, 1994 International Business Machines Corp.	
+//%%  (c) Copyright 1993, 1994 Sun Microsystems, Inc.			
+//%%  (c) Copyright 1993, 1994 Novell, Inc. 				
+//%%  $XConsortium: CoEdChangeQueue.C /main/3 1995/10/20 17:06:28 rswiston $ 			 				
+/*
+ * CoEdChangeQueue.cc
+ *
+ * Copyright (c) 1991 by Sun Microsystems.  All Rights Reserved.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the names of Sun
+ * Microsystems and its subsidiaries not be used in advertising or
+ * publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Sun Microsystems and its
+ * subsidiaries make no representations about the suitability of this
+ * software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ *
+ * Sun Microsystems and its subsidiaries disclaim all warranties with
+ * regard to this software, including all implied warranties of
+ * merchantability and fitness.  In no event shall Sun Microsystems or
+ * its subsidiaries be liable for any special, indirect or
+ * consequential damages or any damages whatsoever resulting from loss
+ * of use, data or profits, whether in an action of contract,
+ * negligence or other tortious action, arising out of or in
+ * connection with the use or performance of this software.
+ */
+
+#include <string.h>
+#include "CoEdChangeQueue.h"
+
+CoEdChangeQueue::
+CoEdChangeQueue() : CoEdTextChangeList()
+{
+}
+
+void CoEdChangeQueue::
+insert( CoEdTextChange *change )
+{
+	append( change );
+}
+
+CoEdTextChange *CoEdChangeQueue::
+deQEligibleChng( const CoEdTextVersion &version )
+{
+	CoEdTextChange *curr = _head;
+	while (curr != 0) {
+		if (! curr->knowsOfNewerChangesThan( version )) {
+			return remove( curr );
+		}
+		curr = curr->_next;
+	}
+	return 0;
+}