22 |
|
*/ |
23 |
|
public void testConstructor() { |
24 |
|
AtomicMarkableReference ai = new AtomicMarkableReference(one, false); |
25 |
< |
assertEquals(one,ai.getReference()); |
26 |
< |
assertFalse(ai.isMarked()); |
25 |
> |
assertEquals(one,ai.getReference()); |
26 |
> |
assertFalse(ai.isMarked()); |
27 |
|
AtomicMarkableReference a2 = new AtomicMarkableReference(null, true); |
28 |
< |
assertNull(a2.getReference()); |
29 |
< |
assertTrue(a2.isMarked()); |
28 |
> |
assertNull(a2.getReference()); |
29 |
> |
assertTrue(a2.isMarked()); |
30 |
|
|
31 |
|
} |
32 |
|
|
36 |
|
public void testGetSet() { |
37 |
|
boolean[] mark = new boolean[1]; |
38 |
|
AtomicMarkableReference ai = new AtomicMarkableReference(one, false); |
39 |
< |
assertEquals(one,ai.getReference()); |
40 |
< |
assertFalse(ai.isMarked()); |
39 |
> |
assertEquals(one,ai.getReference()); |
40 |
> |
assertFalse(ai.isMarked()); |
41 |
|
assertEquals(one, ai.get(mark)); |
42 |
|
assertFalse(mark[0]); |
43 |
< |
ai.set(two, false); |
44 |
< |
assertEquals(two,ai.getReference()); |
45 |
< |
assertFalse(ai.isMarked()); |
43 |
> |
ai.set(two, false); |
44 |
> |
assertEquals(two,ai.getReference()); |
45 |
> |
assertFalse(ai.isMarked()); |
46 |
|
assertEquals(two, ai.get(mark)); |
47 |
|
assertFalse(mark[0]); |
48 |
< |
ai.set(one, true); |
49 |
< |
assertEquals(one,ai.getReference()); |
50 |
< |
assertTrue(ai.isMarked()); |
48 |
> |
ai.set(one, true); |
49 |
> |
assertEquals(one,ai.getReference()); |
50 |
> |
assertTrue(ai.isMarked()); |
51 |
|
assertEquals(one, ai.get(mark)); |
52 |
|
assertTrue(mark[0]); |
53 |
|
} |
60 |
|
AtomicMarkableReference ai = new AtomicMarkableReference(one, false); |
61 |
|
assertFalse(ai.isMarked()); |
62 |
|
assertTrue(ai.attemptMark(one, true)); |
63 |
< |
assertTrue(ai.isMarked()); |
63 |
> |
assertTrue(ai.isMarked()); |
64 |
|
assertEquals(one, ai.get(mark)); |
65 |
|
assertTrue(mark[0]); |
66 |
|
} |
72 |
|
public void testCompareAndSet() { |
73 |
|
boolean[] mark = new boolean[1]; |
74 |
|
AtomicMarkableReference ai = new AtomicMarkableReference(one, false); |
75 |
< |
assertEquals(one, ai.get(mark)); |
75 |
> |
assertEquals(one, ai.get(mark)); |
76 |
|
assertFalse(ai.isMarked()); |
77 |
< |
assertFalse(mark[0]); |
77 |
> |
assertFalse(mark[0]); |
78 |
|
|
79 |
|
assertTrue(ai.compareAndSet(one, two, false, false)); |
80 |
< |
assertEquals(two, ai.get(mark)); |
81 |
< |
assertFalse(mark[0]); |
80 |
> |
assertEquals(two, ai.get(mark)); |
81 |
> |
assertFalse(mark[0]); |
82 |
|
|
83 |
|
assertTrue(ai.compareAndSet(two, m3, false, true)); |
84 |
< |
assertEquals(m3, ai.get(mark)); |
85 |
< |
assertTrue(mark[0]); |
84 |
> |
assertEquals(m3, ai.get(mark)); |
85 |
> |
assertTrue(mark[0]); |
86 |
|
|
87 |
|
assertFalse(ai.compareAndSet(two, m3, true, true)); |
88 |
< |
assertEquals(m3, ai.get(mark)); |
89 |
< |
assertTrue(mark[0]); |
88 |
> |
assertEquals(m3, ai.get(mark)); |
89 |
> |
assertTrue(mark[0]); |
90 |
|
} |
91 |
|
|
92 |
|
/** |
93 |
|
* compareAndSet in one thread enables another waiting for reference value |
94 |
|
* to succeed |
95 |
|
*/ |
96 |
< |
public void testCompareAndSetInMultipleThreads() { |
96 |
> |
public void testCompareAndSetInMultipleThreads() throws Exception { |
97 |
|
final AtomicMarkableReference ai = new AtomicMarkableReference(one, false); |
98 |
< |
Thread t = new Thread(new Runnable() { |
99 |
< |
public void run() { |
100 |
< |
while (!ai.compareAndSet(two, three, false, false)) Thread.yield(); |
101 |
< |
}}); |
102 |
< |
try { |
103 |
< |
t.start(); |
104 |
< |
assertTrue(ai.compareAndSet(one, two, false, false)); |
105 |
< |
t.join(LONG_DELAY_MS); |
106 |
< |
assertFalse(t.isAlive()); |
107 |
< |
assertEquals(ai.getReference(), three); |
108 |
< |
assertFalse(ai.isMarked()); |
109 |
< |
} |
110 |
< |
catch (Exception e) { |
111 |
< |
unexpectedException(); |
112 |
< |
} |
98 |
> |
Thread t = new Thread(new CheckedRunnable() { |
99 |
> |
public void realRun() { |
100 |
> |
while (!ai.compareAndSet(two, three, false, false)) |
101 |
> |
Thread.yield(); |
102 |
> |
}}); |
103 |
> |
|
104 |
> |
t.start(); |
105 |
> |
assertTrue(ai.compareAndSet(one, two, false, false)); |
106 |
> |
t.join(LONG_DELAY_MS); |
107 |
> |
assertFalse(t.isAlive()); |
108 |
> |
assertEquals(ai.getReference(), three); |
109 |
> |
assertFalse(ai.isMarked()); |
110 |
|
} |
111 |
|
|
112 |
|
/** |
113 |
|
* compareAndSet in one thread enables another waiting for mark value |
114 |
|
* to succeed |
115 |
|
*/ |
116 |
< |
public void testCompareAndSetInMultipleThreads2() { |
116 |
> |
public void testCompareAndSetInMultipleThreads2() throws Exception { |
117 |
|
final AtomicMarkableReference ai = new AtomicMarkableReference(one, false); |
118 |
< |
Thread t = new Thread(new Runnable() { |
119 |
< |
public void run() { |
120 |
< |
while (!ai.compareAndSet(one, one, true, false)) Thread.yield(); |
121 |
< |
}}); |
122 |
< |
try { |
123 |
< |
t.start(); |
124 |
< |
assertTrue(ai.compareAndSet(one, one, false, true)); |
125 |
< |
t.join(LONG_DELAY_MS); |
126 |
< |
assertFalse(t.isAlive()); |
127 |
< |
assertEquals(ai.getReference(), one); |
128 |
< |
assertFalse(ai.isMarked()); |
129 |
< |
} |
133 |
< |
catch (Exception e) { |
134 |
< |
unexpectedException(); |
135 |
< |
} |
118 |
> |
Thread t = new Thread(new CheckedRunnable() { |
119 |
> |
public void realRun() { |
120 |
> |
while (!ai.compareAndSet(one, one, true, false)) |
121 |
> |
Thread.yield(); |
122 |
> |
}}); |
123 |
> |
|
124 |
> |
t.start(); |
125 |
> |
assertTrue(ai.compareAndSet(one, one, false, true)); |
126 |
> |
t.join(LONG_DELAY_MS); |
127 |
> |
assertFalse(t.isAlive()); |
128 |
> |
assertEquals(ai.getReference(), one); |
129 |
> |
assertFalse(ai.isMarked()); |
130 |
|
} |
131 |
|
|
132 |
|
/** |
136 |
|
public void testWeakCompareAndSet() { |
137 |
|
boolean[] mark = new boolean[1]; |
138 |
|
AtomicMarkableReference ai = new AtomicMarkableReference(one, false); |
139 |
< |
assertEquals(one, ai.get(mark)); |
139 |
> |
assertEquals(one, ai.get(mark)); |
140 |
|
assertFalse(ai.isMarked()); |
141 |
< |
assertFalse(mark[0]); |
141 |
> |
assertFalse(mark[0]); |
142 |
|
|
143 |
|
while (!ai.weakCompareAndSet(one, two, false, false)); |
144 |
< |
assertEquals(two, ai.get(mark)); |
145 |
< |
assertFalse(mark[0]); |
144 |
> |
assertEquals(two, ai.get(mark)); |
145 |
> |
assertFalse(mark[0]); |
146 |
|
|
147 |
|
while (!ai.weakCompareAndSet(two, m3, false, true)); |
148 |
< |
assertEquals(m3, ai.get(mark)); |
149 |
< |
assertTrue(mark[0]); |
148 |
> |
assertEquals(m3, ai.get(mark)); |
149 |
> |
assertTrue(mark[0]); |
150 |
|
} |
151 |
|
|
152 |
|
} |