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81b65259
编写于
8月 11, 2019
作者:
武汉红喜
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差异文件
concurrent test
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whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/ReentrantLockTest.java
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whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/ReentrantLockTest.java
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81b65259
package
org.hongxi.java.util.concurrent
;
import
java.util.concurrent.locks.Condition
;
import
java.util.concurrent.locks.Lock
;
import
java.util.concurrent.locks.ReentrantLock
;
public
class
ReentrantLockTest
{
public
static
void
main
(
String
[]
args
)
{
final
Business
business
=
new
Business
();
new
Thread
(()
->
{
for
(
int
i
=
1
;
i
<=
50
;
i
++)
{
business
.
sub2
(
i
);
}
}).
start
();
new
Thread
(()
->
{
for
(
int
i
=
1
;
i
<=
50
;
i
++)
{
business
.
sub3
(
i
);
}
}).
start
();
for
(
int
i
=
1
;
i
<=
50
;
i
++)
{
business
.
main
(
i
);
}
}
static
class
Business
{
Lock
lock
=
new
ReentrantLock
();
Condition
condition1
=
lock
.
newCondition
();
Condition
condition2
=
lock
.
newCondition
();
Condition
condition3
=
lock
.
newCondition
();
private
int
shouldSub
=
1
;
public
void
sub2
(
int
i
)
{
lock
.
lock
();
try
{
while
(
shouldSub
!=
2
)
{
try
{
condition2
.
await
();
}
catch
(
Exception
e
)
{
e
.
printStackTrace
();
}
}
for
(
int
j
=
1
;
j
<=
10
;
j
++)
{
System
.
out
.
println
(
"sub2 thread sequence of "
+
j
+
",loop of "
+
i
);
}
shouldSub
=
3
;
condition3
.
signal
();
}
finally
{
lock
.
unlock
();
}
}
public
void
sub3
(
int
i
)
{
lock
.
lock
();
try
{
while
(
shouldSub
!=
3
)
{
try
{
condition3
.
await
();
}
catch
(
Exception
e
)
{
e
.
printStackTrace
();
}
}
for
(
int
j
=
1
;
j
<=
20
;
j
++)
{
System
.
out
.
println
(
"sub3 thread sequence of "
+
j
+
",loop of "
+
i
);
}
shouldSub
=
1
;
condition1
.
signal
();
}
finally
{
lock
.
unlock
();
}
}
public
void
main
(
int
i
)
{
lock
.
lock
();
try
{
while
(
shouldSub
!=
1
)
{
try
{
condition1
.
await
();
}
catch
(
Exception
e
)
{
e
.
printStackTrace
();
}
}
for
(
int
j
=
1
;
j
<=
100
;
j
++)
{
System
.
out
.
println
(
"main thread sequence of "
+
j
+
",loop of "
+
i
);
}
shouldSub
=
2
;
condition2
.
signal
();
}
finally
{
lock
.
unlock
();
}
}
}
}
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