01: /*
02: * %W% %E%
03: *
04: * Copyright 1990-2006 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License version
09: * 2 only, as published by the Free Software Foundation.
10: *
11: * This program is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License version 2 for more details (a copy is
15: * included at /legal/license.txt).
16: *
17: * You should have received a copy of the GNU General Public License
18: * version 2 along with this work; if not, write to the Free Software
19: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA
21: *
22: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
23: * Clara, CA 95054 or visit www.sun.com if you need additional
24: * information or have any questions.
25: */
26:
27: package com.sun.jump.os;
28:
29: import java.io.IOException;
30:
31: import com.sun.jump.message.JUMPMessagable;
32: import com.sun.jump.message.JUMPTimedOutException;
33: import com.sun.jump.message.JUMPUnblockedException;
34:
35: /**
36: * <code>JUMPMessageQueue</code> abstracts the communication channels between
37: * the system executive and the isolates. This is a low-level porting
38: * interface and is used by the implementation and not directly by modules.
39: */
40: public abstract class JUMPMessageQueueInterface {
41:
42: /**
43: * Creates a new instance of JUMPMessageQueue
44: */
45: protected JUMPMessageQueueInterface() {
46: }
47:
48: /**
49: * Get offset of non-OS data in message buffer
50: */
51: public abstract int getDataOffset();
52:
53: /**
54: * Must have exception interface
55: *
56: * @throws JUMPTimedOutException
57: * @throws JUMPUnblockedException
58: * @throws IOException
59: */
60: public abstract byte[] receiveMessage(String type, long timeout)
61: throws JUMPTimedOutException, IOException;
62:
63: }
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