copyout.java

传感器网络中的嵌入式操作系统源代码

// $Id: CopyOut.java,v 1.1.4.2 2003/08/18 22:09:43 cssharp Exp $

/*									tab:4
 * "Copyright (c) 2000-2003 The Regents of the University  of California.  
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose, without fee, and without written agreement is
 * hereby granted, provided that the above copyright notice, the following
 * two paragraphs and the author appear in all copies of this software.
 * 
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
 * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
 * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
 *
 * Copyright (c) 2002-2003 Intel Corporation
 * All rights reserved.
 *
 * This file is distributed under the terms in the attached INTEL-LICENSE     
 * file. If you do not find these files, copies can be found by writing to
 * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA, 
 * 94704.  Attention:  Intel License Inquiry.
 */
package net.tinyos.matchbox.tools;

import net.tinyos.matchbox.*;
import java.io.*;

class CopyOut {
    Comm comm;

    CopyOut() {
	comm = new Comm();
	comm.start();
    }

    public static void main(String[] argv) {
	if (argv.length != 1) {
	    System.err.println("usage: java tools.CopyOut matchbox-filename");
	    System.err.println("  copies matchbox-filename to standard output");
	    System.exit(2);
	}
	new CopyOut().copy(argv[0]);
	System.exit(0);
    }

    void copy(String fname) {
	comm.checkedSend(new Op(FS.FSOP_READ_OPEN).argString(fname));

	int maxData = Op.maxData - 2;
	byte[] buffer = new byte[maxData];
	for (;;) {
	    FSReplyMsg data =
	      comm.checkedSend(new Op(FS.FSOP_READ).argU8(maxData));

	    int count = data.getElement_data(0);
	    if (count == 0)
	      break;

	    for (int i = 1; i <= count; i++) 
	      System.out.print((char)data.getElement_data(i));
	}
	comm.checkedSend(new Op(FS.FSOP_READ_CLOSE));
    }
}