forked from btraceio/btrace
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathSocketTracker.java
More file actions
146 lines (132 loc) · 4.3 KB
/
SocketTracker.java
File metadata and controls
146 lines (132 loc) · 4.3 KB
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
/*
* Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the Classpath exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.btrace.samples;
import com.sun.btrace.annotations.*;
import static com.sun.btrace.BTraceUtils.*;
import java.net.*;
import java.nio.channels.SocketChannel;
/**
* This example tracks all server socket creations
* and client socket accepts.
* <br>
* Also, it shows how to use shared methods.
*/
@BTrace public class SocketTracker {
@TLS private static int port = -1;
@TLS private static InetAddress inetAddr;
@TLS private static SocketAddress sockAddr;
@OnMethod(
clazz="java.net.ServerSocket",
method="<init>"
)
public static void onServerSocket(@Self ServerSocket self,
int p, int backlog, InetAddress bindAddr) {
port = p;
inetAddr = bindAddr;
}
@OnMethod(
clazz="java.net.ServerSocket",
method="<init>",
type="void (int, int, java.net.InetAddress)",
location=@Location(Kind.RETURN)
)
public static void onSockReturn() {
if (port != -1) {
println("server socket at " + port);
port = -1;
}
if (inetAddr != null) {
println("server socket at " + inetAddr);
inetAddr = null;
}
}
@OnMethod(
clazz="java.net.ServerSocket",
method="bind"
)
public static void onBind(@Self ServerSocket self, SocketAddress addr, int backlog) {
sockAddr = addr;
}
@OnMethod(
clazz="java.net.ServerSocket",
method="bind",
type="void (java.net.SocketAddress, int)",
location=@Location(Kind.RETURN)
)
public static void onBindReturn() {
socketBound();
}
@OnMethod(
clazz="sun.nio.ch.ServerSocketChannelImpl",
method="bind"
)
public static void onBind(@Self Object self, SocketAddress addr, int backlog) {
sockAddr = addr;
}
@OnMethod(
clazz="sun.nio.ch.ServerSocketChannelImpl",
method="bind",
type="void (java.net.SocketAddress, int)",
location=@Location(Kind.RETURN)
)
public static void onBindReturn2() {
socketBound();
}
@OnMethod(
clazz="java.net.ServerSocket",
method="accept",
location=@Location(Kind.RETURN)
)
public static void onAcceptReturn(@Return Socket sock) {
clientSocketAcc(sock);
}
@OnMethod(
clazz="sun.nio.ch.ServerSocketChannelImpl",
method="socket",
location=@Location(Kind.RETURN)
)
public static void onSocket(@Return ServerSocket ssock) {
println(Strings.strcat("server socket at ", Strings.str(ssock)));
}
@OnMethod(
clazz="sun.nio.ch.ServerSocketChannelImpl",
method="accept",
location=@Location(Kind.RETURN)
)
public static void onAcceptReturn(@Return SocketChannel sockChan) {
clientSocketAcc(sockChan);
}
private static void socketBound() {
if (sockAddr != null) {
println("server socket bind " +sockAddr);
sockAddr = null;
}
}
private static void clientSocketAcc(Object obj) {
if (obj != null) {
println("client socket accept " + obj);
}
}
}