blob: 46980dae5a713ca6861baf28e9679313037baa8f (
plain)
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
|
// Copyright 2014 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.unix;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.SocketException;
/**
* <p>An implementation of client Socket for local (AF_UNIX) sockets.
*
* <p>This class intentionally doesn't extend java.net.Socket although it
* has some similarity to it. The java.net class hierarchy is a terrible mess
* and is inextricably coupled to the Internet Protocol.
*
* <p>This code is not intended to be portable to non-UNIX platforms.
*/
public class LocalClientSocket extends LocalSocket {
/**
* Constructs an unconnected local client socket.
*
* @throws IOException if the socket could not be created.
*/
public LocalClientSocket() throws IOException {
super();
}
/**
* Constructs a client socket and connects it to the specified address.
*
* @throws IOException if either of the socket/connect operations failed.
*/
public LocalClientSocket(LocalSocketAddress address) throws IOException {
super();
connect(address);
}
/**
* Connect to the specified server. Blocks until the server accepts the
* connection.
*
* @throws IOException if the connection failed.
*/
public synchronized void connect(LocalSocketAddress address)
throws IOException {
checkNotClosed();
if (state == State.CONNECTED) {
throw new SocketException("socket is already connected");
}
connect(fd, address.getName().toString()); // JNI
this.address = address;
this.state = State.CONNECTED;
}
/**
* Returns the input stream for reading from the server.
*
* @param closeSocket close the socket when this input stream is closed.
* @throws IOException if there was a problem.
*/
public synchronized InputStream getInputStream(final boolean closeSocket) throws IOException {
checkConnected();
checkInputNotShutdown();
return new FileInputStream(fd) {
@Override
public void close() throws IOException {
if (closeSocket) {
LocalClientSocket.this.close();
}
}
};
}
/**
* Returns the input stream for reading from the server.
*
* @throws IOException if there was a problem.
*/
public synchronized InputStream getInputStream() throws IOException {
return getInputStream(false);
}
/**
* Returns the output stream for writing to the server.
*
* @throws IOException if there was a problem.
*/
public synchronized OutputStream getOutputStream() throws IOException {
checkConnected();
checkOutputNotShutdown();
return new FileOutputStream(fd) {
@Override public void close() {
// Don't close the file descriptor.
}
};
}
@Override
public String toString() {
return "LocalClientSocket(" + address + ")";
}
}
|
