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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/transport/JdwpCommandPacket.java')
-rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/transport/JdwpCommandPacket.java | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/transport/JdwpCommandPacket.java b/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/transport/JdwpCommandPacket.java new file mode 100644 index 000000000..e99159aad --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/transport/JdwpCommandPacket.java @@ -0,0 +1,149 @@ +/* JdwpCommandPacket.java -- JDWP command packet + Copyright (C) 2005 Free Software Foundation + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.classpath.jdwp.transport; + +import java.io.DataOutputStream; +import java.io.IOException; + +/** + * A class representing a JDWP command packet. + * This class adds command set and command to the packet header + * information in {@link gnu.classpath.jdwp.transport.JdwpPacket} + * and adds additional command packet-specific processing. + * + * @author Keith Seitz <keiths@redhat.com> + */ +public class JdwpCommandPacket extends JdwpPacket +{ + /** + * Command set + */ + protected byte _commandSet; + + /** + * Command + */ + protected byte _command; + + // Minimum packet size [excluding super class] + // ( commandSet (1) + command (1) ) + private static final int MINIMUM_LENGTH = 2; + + /** + * Constructs a new <code>JdwpCommandPacket</code> + */ + public JdwpCommandPacket () + { + // Don't assign an id. This constructor is called by + // JdwpPacket.fromBytes, and that will assign a packet id. + } + + /** + * Constructs a new <code>JdwpCommandPacket</code> + * with the given command set and command + * + * @param set the command set + * @param command the command + */ + public JdwpCommandPacket (byte set, byte command) + { + _id = ++_last_id; + _commandSet = set; + _command = command; + } + + /** + * Retuns the length of this packet + */ + public int getLength () + { + return MINIMUM_LENGTH + super.getLength (); + } + + /** + * Returns the command set + */ + public byte getCommandSet () + { + return _commandSet; + } + + /** + * Sets the command set + */ + public void setCommandSet (byte cs) + { + _commandSet = cs; + } + + /** + * Returns the command + */ + public byte getCommand () + { + return _command; + } + + /** + * Sets the command + */ + public void setCommand (byte cmd) + { + _command = cmd; + } + + // Reads command packet data from the given buffer, starting + // at the given offset + protected int myFromBytes (byte[] bytes, int index) + { + int i = 0; + setCommandSet (bytes[index + i++]); + setCommand (bytes[index + i++]); + return i; + } + + // Writes the command packet data into the given buffer + protected void myWrite (DataOutputStream dos) + throws IOException + { + dos.writeByte (getCommandSet ()); + dos.writeByte (getCommand ()); + } +} |