01: /*
02: * Jatha - a Common LISP-compatible LISP library in Java.
03: * Copyright (C) 1997-2005 Micheal Scott Hewett
04: *
05: * This library is free software; you can redistribute it and/or
06: * modify it under the terms of the GNU Lesser General Public
07: * License as published by the Free Software Foundation; either
08: * version 2.1 of the License, or (at your option) any later version.
09: *
10: * This library is distributed in the hope that it will be useful,
11: * but WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * Lesser General Public License for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public
16: * License along with this library; if not, write to the Free Software
17: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18: *
19: *
20: * For further information, please contact Micheal Hewett at
21: * hewett@cs.stanford.edu
22: *
23: */
24:
25: package org.jatha.compile;
26:
27: import org.jatha.Jatha;
28: import org.jatha.dynatype.*;
29: import org.jatha.machine.*;
30:
31: public class TimePrimitive extends LispPrimitive {
32: public TimePrimitive(Jatha lisp) {
33: super (lisp, "TIME", 1);
34: }
35:
36: public void Execute(SECDMachine machine) throws CompilerException {
37: LispValue expr = machine.S.pop();
38: LispValue code = f_lisp.COMPILER.compile(f_lisp.MACHINE, expr,
39: f_lisp.NIL);
40: SECDMachine newMachine = new SECDMachine(f_lisp);
41:
42: long startMemory = f_lisp.SYSTEM_INFO.freeMemory();
43: long startTime = System.currentTimeMillis();
44: LispValue value = newMachine.Execute(code, f_lisp.NIL);
45: long endTime = System.currentTimeMillis();
46: long endMemory = f_lisp.SYSTEM_INFO.freeMemory();
47:
48: System.out.println("\n; real time: " + (endTime - startTime)
49: + " ms");
50: System.out.println("; space: " + (startMemory - endMemory)
51: + " bytes");
52:
53: machine.S.push(value);
54: machine.C.pop();
55: }
56: }
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