| 1 | /* |
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| 2 | * room.java |
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| 3 | * |
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| 4 | * Copyright (C) 2003-2005 Peter Graves |
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| 5 | * $Id: room.java 12254 2009-11-06 20:07:54Z ehuelsmann $ |
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| 6 | * |
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| 7 | * This program is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU General Public License |
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| 9 | * as published by the Free Software Foundation; either version 2 |
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| 10 | * of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * This program is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | * GNU General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU General Public License |
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| 18 | * along with this program; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 20 | * |
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| 21 | * As a special exception, the copyright holders of this library give you |
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| 22 | * permission to link this library with independent modules to produce an |
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| 23 | * executable, regardless of the license terms of these independent |
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| 24 | * modules, and to copy and distribute the resulting executable under |
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| 25 | * terms of your choice, provided that you also meet, for each linked |
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| 26 | * independent module, the terms and conditions of the license of that |
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| 27 | * module. An independent module is a module which is not derived from |
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| 28 | * or based on this library. If you modify this library, you may extend |
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| 29 | * this exception to your version of the library, but you are not |
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| 30 | * obligated to do so. If you do not wish to do so, delete this |
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| 31 | * exception statement from your version. |
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| 32 | */ |
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| 33 | |
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| 34 | package org.armedbear.lisp; |
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| 35 | |
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| 36 | // ### room |
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| 37 | public final class room extends Primitive |
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| 38 | { |
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| 39 | private room() |
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| 40 | { |
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| 41 | super("room", "&optional x"); |
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| 42 | } |
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| 43 | |
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| 44 | @Override |
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| 45 | public LispObject execute(LispObject[] args) |
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| 46 | { |
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| 47 | if (args.length > 1) |
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| 48 | return error(new WrongNumberOfArgumentsException(this)); |
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| 49 | Runtime runtime = Runtime.getRuntime(); |
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| 50 | long total = runtime.totalMemory(); |
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| 51 | long free = runtime.freeMemory(); |
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| 52 | |
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| 53 | long used = total - free; |
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| 54 | Stream out = getStandardOutput(); |
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| 55 | StringBuffer sb = new StringBuffer("Total memory "); |
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| 56 | sb.append(total); |
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| 57 | sb.append(" bytes"); |
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| 58 | sb.append(System.getProperty("line.separator")); |
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| 59 | sb.append(used); |
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| 60 | sb.append(" bytes used"); |
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| 61 | sb.append(System.getProperty("line.separator")); |
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| 62 | sb.append(free); |
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| 63 | sb.append(" bytes free"); |
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| 64 | sb.append(System.getProperty("line.separator")); |
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| 65 | out._writeString(sb.toString()); |
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| 66 | out._finishOutput(); |
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| 67 | return LispThread.currentThread().setValues(number(used), |
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| 68 | number(total),number(runtime.maxMemory())); |
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| 69 | } |
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| 70 | |
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| 71 | private static final Primitive ROOM = new room(); |
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| 72 | } |
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