1 /* gnu.java.rmi.server.ConnectionRunnerPool
2 Copyright (C) 2002 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath 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 for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
39 package gnu
.java
.rmi
.server
;
41 import java
.util
.ArrayList
;
42 import java
.util
.Arrays
;
44 //Should I generalize this class?
46 class ConnectionRunnerPool
50 class ConnectionRunner
extends Thread
{
51 private UnicastConnection conn
;
52 private volatile boolean exiting
= false;
54 public ConnectionRunner(ThreadGroup group
, String id
){
58 public synchronized void run(){
63 }catch(InterruptedException e
){
69 synchronized(ConnectionRunnerPool
.class){
71 if(freelist
.size() == 1)
72 ConnectionRunnerPool
.class.notifyAll();
78 public synchronized void dispatch(UnicastConnection conn
){
88 }catch(InterruptedException e
){}
94 // Should this value equal to number of CPU?
95 private static int size
= 5;
96 private static int max_size
= 10;
98 private static ArrayList freelist
;
100 private static ThreadGroup group
= new ThreadGroup("pool");
103 ConnectionRunner
[] pools
= new ConnectionRunner
[size
];
104 for(int i
= 0; i
< pools
.length
; i
++){
105 pools
[i
] = new ConnectionRunner(group
, new Integer(i
).toString());
106 pools
[i
].setContextClassLoader(Thread
.currentThread().getContextClassLoader());
109 freelist
= new ArrayList(Arrays
.asList(pools
));
112 public static void setSize(int size_
){
116 public static void setMaxSize(int size
){
120 private synchronized static ConnectionRunner
getConnectionRunner()
122 if(freelist
.size() == 0){
125 ConnectionRunner a
= new ConnectionRunner(group
, new Integer(size
).toString());
129 while(freelist
.size() == 0)
131 ConnectionRunnerPool
.class.wait();
132 }catch(InterruptedException e
){}
135 // always let the first in pool most busy or other scheduling plan??
136 ConnectionRunner a
= (ConnectionRunner
)freelist
.get(0);
141 public static void dispatchConnection(UnicastConnection conn
)
143 ConnectionRunner r
= getConnectionRunner();
147 public static void exit()
149 Thread
[] list
= new Thread
[group
.activeCount()];
150 group
.enumerate(list
);
151 for(int i
= 0; i
< list
.length
; i
++)
152 ((ConnectionRunner
)list
[i
]).exit();