73 |
|
return; |
74 |
|
} |
75 |
|
x = one; |
76 |
< |
assertEquals(one,a.get(this)); |
77 |
< |
a.set(this,two); |
78 |
< |
assertEquals(two,a.get(this)); |
79 |
< |
a.set(this,m3); |
80 |
< |
assertEquals(m3,a.get(this)); |
76 |
> |
assertEquals(one,a.get(this)); |
77 |
> |
a.set(this,two); |
78 |
> |
assertEquals(two,a.get(this)); |
79 |
> |
a.set(this,m3); |
80 |
> |
assertEquals(m3,a.get(this)); |
81 |
|
} |
82 |
|
|
83 |
|
/** |
91 |
|
return; |
92 |
|
} |
93 |
|
x = one; |
94 |
< |
assertEquals(one,a.get(this)); |
95 |
< |
a.lazySet(this,two); |
96 |
< |
assertEquals(two,a.get(this)); |
97 |
< |
a.lazySet(this,m3); |
98 |
< |
assertEquals(m3,a.get(this)); |
94 |
> |
assertEquals(one,a.get(this)); |
95 |
> |
a.lazySet(this,two); |
96 |
> |
assertEquals(two,a.get(this)); |
97 |
> |
a.lazySet(this,m3); |
98 |
> |
assertEquals(m3,a.get(this)); |
99 |
|
} |
100 |
|
|
101 |
|
/** |
109 |
|
return; |
110 |
|
} |
111 |
|
x = one; |
112 |
< |
assertTrue(a.compareAndSet(this,one,two)); |
113 |
< |
assertTrue(a.compareAndSet(this,two,m4)); |
114 |
< |
assertEquals(m4,a.get(this)); |
115 |
< |
assertFalse(a.compareAndSet(this,m5,seven)); |
116 |
< |
assertFalse((seven == a.get(this))); |
117 |
< |
assertTrue(a.compareAndSet(this,m4,seven)); |
118 |
< |
assertEquals(seven,a.get(this)); |
112 |
> |
assertTrue(a.compareAndSet(this,one,two)); |
113 |
> |
assertTrue(a.compareAndSet(this,two,m4)); |
114 |
> |
assertEquals(m4,a.get(this)); |
115 |
> |
assertFalse(a.compareAndSet(this,m5,seven)); |
116 |
> |
assertFalse((seven == a.get(this))); |
117 |
> |
assertTrue(a.compareAndSet(this,m4,seven)); |
118 |
> |
assertEquals(seven,a.get(this)); |
119 |
|
} |
120 |
|
|
121 |
|
/** |
122 |
|
* compareAndSet in one thread enables another waiting for value |
123 |
|
* to succeed |
124 |
|
*/ |
125 |
< |
public void testCompareAndSetInMultipleThreads() { |
125 |
> |
public void testCompareAndSetInMultipleThreads() throws Exception { |
126 |
|
x = one; |
127 |
|
final AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer>a; |
128 |
|
try { |
131 |
|
return; |
132 |
|
} |
133 |
|
|
134 |
< |
Thread t = new Thread(new Runnable() { |
135 |
< |
public void run() { |
136 |
< |
while (!a.compareAndSet(AtomicReferenceFieldUpdaterTest.this, two, three)) Thread.yield(); |
137 |
< |
}}); |
138 |
< |
try { |
139 |
< |
t.start(); |
140 |
< |
assertTrue(a.compareAndSet(this, one, two)); |
141 |
< |
t.join(LONG_DELAY_MS); |
142 |
< |
assertFalse(t.isAlive()); |
143 |
< |
assertEquals(a.get(this), three); |
144 |
< |
} |
145 |
< |
catch (Exception e) { |
146 |
< |
unexpectedException(); |
147 |
< |
} |
134 |
> |
Thread t = new Thread(new CheckedRunnable() { |
135 |
> |
public void realRun() { |
136 |
> |
while (!a.compareAndSet(AtomicReferenceFieldUpdaterTest.this, two, three)) |
137 |
> |
Thread.yield(); |
138 |
> |
}}); |
139 |
> |
|
140 |
> |
t.start(); |
141 |
> |
assertTrue(a.compareAndSet(this, one, two)); |
142 |
> |
t.join(LONG_DELAY_MS); |
143 |
> |
assertFalse(t.isAlive()); |
144 |
> |
assertEquals(a.get(this), three); |
145 |
|
} |
146 |
|
|
147 |
|
/** |
156 |
|
return; |
157 |
|
} |
158 |
|
x = one; |
159 |
< |
while (!a.weakCompareAndSet(this,one,two)); |
160 |
< |
while (!a.weakCompareAndSet(this,two,m4)); |
161 |
< |
assertEquals(m4,a.get(this)); |
162 |
< |
while (!a.weakCompareAndSet(this,m4,seven)); |
163 |
< |
assertEquals(seven,a.get(this)); |
159 |
> |
while (!a.weakCompareAndSet(this,one,two)); |
160 |
> |
while (!a.weakCompareAndSet(this,two,m4)); |
161 |
> |
assertEquals(m4,a.get(this)); |
162 |
> |
while (!a.weakCompareAndSet(this,m4,seven)); |
163 |
> |
assertEquals(seven,a.get(this)); |
164 |
|
} |
165 |
|
|
166 |
|
/** |
174 |
|
return; |
175 |
|
} |
176 |
|
x = one; |
177 |
< |
assertEquals(one,a.getAndSet(this, zero)); |
178 |
< |
assertEquals(zero,a.getAndSet(this,m10)); |
179 |
< |
assertEquals(m10,a.getAndSet(this,1)); |
177 |
> |
assertEquals(one,a.getAndSet(this, zero)); |
178 |
> |
assertEquals(zero,a.getAndSet(this,m10)); |
179 |
> |
assertEquals(m10,a.getAndSet(this,1)); |
180 |
|
} |
181 |
|
|
182 |
|
} |