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d034675c
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dragonwell8_jdk
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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
提交
d034675c
编写于
3月 13, 2017
作者:
I
igerasim
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电子邮件补丁
差异文件
8172204: Better Thread Pool execution
Reviewed-by: alanb, skoivu, rriggs
上级
50874d19
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
20 addition
and
1 deletion
+20
-1
src/share/classes/java/util/concurrent/ThreadPoolExecutor.java
...hare/classes/java/util/concurrent/ThreadPoolExecutor.java
+20
-1
未找到文件。
src/share/classes/java/util/concurrent/ThreadPoolExecutor.java
浏览文件 @
d034675c
...
...
@@ -34,6 +34,10 @@
*/
package
java.util.concurrent
;
import
java.security.AccessControlContext
;
import
java.security.AccessController
;
import
java.security.PrivilegedAction
;
import
java.util.concurrent.locks.AbstractQueuedSynchronizer
;
import
java.util.concurrent.locks.Condition
;
import
java.util.concurrent.locks.ReentrantLock
;
...
...
@@ -569,6 +573,9 @@ public class ThreadPoolExecutor extends AbstractExecutorService {
private
static
final
RuntimePermission
shutdownPerm
=
new
RuntimePermission
(
"modifyThread"
);
/* The context to be used when executing the finalizer, or null. */
private
final
AccessControlContext
acc
;
/**
* Class Worker mainly maintains interrupt control state for
* threads running tasks, along with other minor bookkeeping.
...
...
@@ -1307,6 +1314,9 @@ public class ThreadPoolExecutor extends AbstractExecutorService {
throw
new
IllegalArgumentException
();
if
(
workQueue
==
null
||
threadFactory
==
null
||
handler
==
null
)
throw
new
NullPointerException
();
this
.
acc
=
System
.
getSecurityManager
()
==
null
?
null
:
AccessController
.
getContext
();
this
.
corePoolSize
=
corePoolSize
;
this
.
maximumPoolSize
=
maximumPoolSize
;
this
.
workQueue
=
workQueue
;
...
...
@@ -1472,9 +1482,18 @@ public class ThreadPoolExecutor extends AbstractExecutorService {
/**
* Invokes {@code shutdown} when this executor is no longer
* referenced and it has no threads.
*
* <p>This method is invoked with privileges that are restricted by
* the security context of the caller that invokes the constructor.
*/
protected
void
finalize
()
{
shutdown
();
SecurityManager
sm
=
System
.
getSecurityManager
();
if
(
sm
==
null
||
acc
==
null
)
{
shutdown
();
}
else
{
PrivilegedAction
<
Void
>
pa
=
()
->
{
shutdown
();
return
null
;
};
AccessController
.
doPrivileged
(
pa
,
acc
);
}
}
/**
...
...
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