blob: 2bd1f967845be22b2b44bf41417f236eaeb66050 (
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
|
/*
* Copyright (C) 2009 The Android Open Source Project
*
* 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.android.camera.gallery;
import java.io.IOException;
import java.io.OutputStream;
/**
* A wrapper of an <code>OutputStream</code>, so that all the IO operations are
* thread safe.
*/
class ThreadSafeOutputStream extends OutputStream {
private OutputStream mDelegateStream;
boolean mClosed;
public ThreadSafeOutputStream(OutputStream delegate) {
mDelegateStream = delegate;
}
@Override
public synchronized void close() {
try {
mClosed = true;
mDelegateStream.close();
} catch (IOException ex) {
//TODO: this should be thrown out.
}
}
@Override
public synchronized void flush() throws IOException {
super.flush();
}
@Override
public void write(byte[] b, int offset, int length) throws IOException {
while (length > 0) {
synchronized (this) {
if (mClosed) return;
int writeLength = Math.min(8192, length);
mDelegateStream.write(b, offset, writeLength);
offset += writeLength;
length -= writeLength;
}
}
}
@Override
public synchronized void write(int oneByte) throws IOException {
if (mClosed) return;
mDelegateStream.write(oneByte);
}
}
|
