01: /*
02: * Copyright (c) 2000 by Matt Welsh and The Regents of the University of
03: * California. All rights reserved.
04: *
05: * Permission to use, copy, modify, and distribute this software and its
06: * documentation for any purpose, without fee, and without written agreement is
07: * hereby granted, provided that the above copyright notice and the following
08: * two paragraphs appear in all copies of this software.
09: *
10: * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
11: * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
12: * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
13: * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
14: *
15: * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
16: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
17: * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
18: * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
19: * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
20: *
21: * Author: Matt Welsh <mdw@cs.berkeley.edu>
22: *
23: */
24:
25: package seda.sandStorm.lib.aDisk;
26:
27: import seda.sandStorm.api.*;
28: import seda.sandStorm.api.internal.*;
29: import java.io.*;
30:
31: /**
32: * Internal abstract class used to represent an AFile thread manager.
33: */
34: abstract class AFileTM implements ThreadManagerIF {
35:
36: /**
37: * Register a stage with this thread manager.
38: */
39: public abstract void register(StageWrapperIF stage);
40:
41: /**
42: *
43: * Deregister a stage with this thread manager.
44: */
45: public abstract void deregister(StageWrapperIF stage);
46:
47: /**
48: * Start the thread manager.
49: */
50: public abstract void start();
51:
52: /**
53: * Stop the thread manager and all threads managed by it.
54: */
55: public abstract void stop();
56:
57: /**
58: * Enqueue an AFileRequest for this thread manager to handle.
59: */
60: public abstract void enqueueRequest(AFileRequest req);
61:
62: }
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