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
|
/**
* Copyright 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.opengl;
import javax.media.opengl.GLRunnable;
import javax.media.opengl.GLAutoDrawable;
/**
* Helper class to provide a Runnable queue implementation with a Runnable wrapper
* which notifies after execution for the <code>invokeAndWait()</code> semantics.
*/
public class GLRunnableTask implements GLRunnable {
GLRunnable runnable;
Object notifyObject;
boolean catchExceptions;
volatile boolean isExecuted;
volatile boolean isFlushed;
Throwable runnableException;
public GLRunnableTask(final GLRunnable runnable, final Object notifyObject, final boolean catchExceptions) {
this.runnable = runnable ;
this.notifyObject = notifyObject ;
this.catchExceptions = catchExceptions;
isExecuted = false;
isFlushed = false;
}
@Override
public boolean run(final GLAutoDrawable drawable) {
boolean res = true;
if(null == notifyObject) {
try {
res = runnable.run(drawable);
} catch (final Throwable t) {
runnableException = t;
if(catchExceptions) {
runnableException.printStackTrace();
} else {
throw new RuntimeException(runnableException);
}
} finally {
isExecuted=true;
}
} else {
synchronized (notifyObject) {
try {
res = runnable.run(drawable);
} catch (final Throwable t) {
runnableException = t;
if(catchExceptions) {
runnableException.printStackTrace();
} else {
throw new RuntimeException(runnableException);
}
} finally {
isExecuted=true;
notifyObject.notifyAll();
}
}
}
return res;
}
/**
* Simply flush this task and notify a waiting executor.
* The executor which might have been blocked until notified
* will be unblocked and the task removed from the queue.
*
* @see #isFlushed()
* @see #isInQueue()
*/
public void flush() {
if(!isExecuted() && null != notifyObject) {
synchronized (notifyObject) {
isFlushed=true;
notifyObject.notifyAll();
}
}
}
/**
* @return !{@link #isExecuted()} && !{@link #isFlushed()}
*/
public boolean isInQueue() { return !isExecuted && !isFlushed; }
/**
* @return whether this task has been executed.
* @see #isInQueue()
*/
public boolean isExecuted() { return isExecuted; }
/**
* @return whether this task has been flushed.
* @see #isInQueue()
*/
public boolean isFlushed() { return isFlushed; }
public Throwable getThrowable() { return runnableException; }
}
|
