1 /*
2 * Copyright (c) 2001, Zoltan Farkas All Rights Reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19 package net.sf.zel.instr.var;
20
21 import java.util.logging.Level;
22 import java.util.logging.Logger;
23 import net.sf.zel.instr.*;
24 import net.sf.zel.nr.OperableDouble;
25 import net.sf.zel.nr.OperableNumber;
26 import net.sf.zel.vm.ExecutionContext;
27 import net.sf.zel.vm.ZExecutionException;
28
29 /**
30 *
31 * @author zoly
32 */
33 public class SLEEP extends Instruction
34 {
35 private static final long serialVersionUID = -104479947741779060L;
36
37 private SLEEP(){};
38
39 public final void execute(ExecutionContext context) throws ZExecutionException
40 {
41 try
42 {
43 final long val = ((OperableNumber) context.popSyncStackVal()).longValue();
44 context.stack.pop();
45 Thread.currentThread().sleep(val);
46 context.ip++;
47 } catch (InterruptedException ex)
48 {
49 throw new ZExecutionException("sleeping interrupted", ex, context);
50 }
51 }
52 /**
53 * instance
54 */
55 public static final Instruction instance = new SLEEP();
56 }