1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
//******************************************************************************
//
// File: Receive03.java
// Package: edu.rit.mp.test
// Unit: Class edu.rit.mp.test.Receive03
//
// This Java source file is copyright (C) 2007 by Alan Kaminsky. All rights
// reserved. For further information, contact the author, Alan Kaminsky, at
// ark@cs.rit.edu.
//
// This Java source file is part of the Parallel Java Library ("PJ"). PJ 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 3 of the License, or (at your option) any later version.
//
// PJ 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.
//
// 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 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.
//
// A copy of the GNU General Public License is provided in the file gpl.txt. You
// may also obtain a copy of the GNU General Public License on the World Wide
// Web at http://www.gnu.org/licenses/gpl.html.
//
//******************************************************************************
package edu.rit.mp.test;
import edu.rit.mp.ChannelGroup;
import edu.rit.mp.Status;
import edu.rit.mp.FloatBuf;
import java.net.InetSocketAddress;
/**
* Class Receive03 is a main program that receives MP messages from the
* {@linkplain Send03} program. Each message consists of <I>length</I> floats,
* starting from 0. The number of messages received is <I>count</I>. The program
* prints nothing as messages are received, unless an error occurs.
* <P>
* Usage: java edu.rit.mp.test.Receive03 <I>tohost</I> <I>toport</I>
* <I>length</I> <I>count</I>
* <BR><I>tohost</I> = Host to which to send messages
* <BR><I>toport</I> = Port to which to send messages
* <BR><I>length</I> = Length of each message
* <BR><I>count</I> = Number of messages
*
* @author Alan Kaminsky
* @version 20-Dec-2007
*/
public class Receive03
{
/**
* Prevent construction.
*/
private Receive03()
{
}
/**
* Main routine.
*/
private void run
(String[] args)
throws Throwable
{
// Parse command line arguments.
if (args.length != 4) usage();
String tohost = args[0];
int toport = Integer.parseInt (args[1]);
int length = Integer.parseInt (args[2]);
int count = Integer.parseInt (args[3]);
// Set up item destination.
float[] items = new float [length];
FloatBuf dst = FloatBuf.buffer (items);
// Set up channel group.
ChannelGroup channelgroup =
new ChannelGroup (new InetSocketAddress (tohost, toport));
channelgroup.startListening();
// Receive messages.
Status status = null;
for (int msgnum = 0; msgnum < count; ++ msgnum)
{
status = channelgroup.receive (null, dst);
}
// Check final messge.
if (status.length != length)
{
System.out.print ("Invalid length = ");
System.out.print (status.length);
System.out.println();
}
for (int i = 0; i < length; ++ i)
{
if (items[i] != i)
{
System.out.print ("Invalid items[");
System.out.print (i);
System.out.print ("] = ");
System.out.print (items[i]);
System.out.println();
}
}
}
/**
* Main program.
*/
public static void main
(String[] args)
throws Throwable
{
new Receive03().run (args);
}
/**
* Print a usage message and exit.
*/
private static void usage()
{
System.err.println ("Usage: java edu.rit.mp.test.Receive03 <tohost> <toport> <length> <count>");
System.err.println ("<tohost> = Host to which to send messages");
System.err.println ("<toport> = Port to which to send messages");
System.err.println ("<length> = Length of each message");
System.err.println ("<count> = Number of messages");
System.exit (1);
}
}
|
