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体验新版 GitCode,发现更多精彩内容 >>
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1ed395aa
编写于
3月 08, 2016
作者:
S
Stephen Connolly
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差异文件
[FIXED JENKINS-33377] Add a check for termination to Functions.isExtensionsAvailable()
上级
bb7c8fce
变更
1
隐藏空白更改
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1 changed file
with
12 addition
and
2 deletion
+12
-2
core/src/main/java/hudson/Functions.java
core/src/main/java/hudson/Functions.java
+12
-2
未找到文件。
core/src/main/java/hudson/Functions.java
浏览文件 @
1ed395aa
...
...
@@ -74,6 +74,8 @@ import hudson.tasks.Publisher;
import
hudson.tasks.UserAvatarResolver
;
import
hudson.util.Area
;
import
hudson.util.FormValidation.CheckMethod
;
import
hudson.util.HudsonIsLoading
;
import
hudson.util.HudsonIsRestarting
;
import
hudson.util.Iterators
;
import
hudson.util.jna.GNUCLibrary
;
import
hudson.util.Secret
;
...
...
@@ -207,20 +209,28 @@ public class Functions {
/**
* During Jenkins start-up, before {@link InitMilestone#PLUGINS_STARTED} the extensions lists will be empty
* and they are not guaranteed to be fully populated until after {@link InitMilestone#EXTENSIONS_AUGMENTED}.
* and they are not guaranteed to be fully populated until after {@link InitMilestone#EXTENSIONS_AUGMENTED},
* similarly, during termination after {@link Jenkins#isTerminating()} is set, it is no longer safe to access
* the extensions lists.
* If you attempt to access the extensions list from a UI thread while the extensions are being loaded you will
* hit a big honking great monitor lock that will block until the effective extension list has been determined
* (as if a plugin fails to start, all of the failed plugin's extensions and any dependent plugins' extensions
* will have to be evicted from the list of extensions. In practical terms this only affects the
* "Jenkins is loading" screen, but as that screen uses the generic layouts we provide this utility method
* so that the generic layouts can avoid iterating extension lists while Jenkins is starting up.
* If you attempt to access the extensions list from a UI thread while Jenkins is being shut down, the extensions
* themselves may no longer be in a valid state and could attempt to revive themselves and block termination.
* In actual terms the termination only affects those views required to render {@link HudsonIsRestarting}'s
* {@code index.jelly} which is the same set as the {@link HudsonIsLoading} pages so it makes sense to
* use both checks here.
*
* @return {@code true} if the extensions lists have been populated.
* @since 1.607
*/
public
static
boolean
isExtensionsAvailable
()
{
final
Jenkins
jenkins
=
Jenkins
.
getInstanceOrNull
();
return
jenkins
!=
null
&&
jenkins
.
getInitLevel
().
compareTo
(
InitMilestone
.
EXTENSIONS_AUGMENTED
)
>=
0
;
return
jenkins
!=
null
&&
jenkins
.
getInitLevel
().
compareTo
(
InitMilestone
.
EXTENSIONS_AUGMENTED
)
>=
0
&&
!
jenkins
.
isTerminating
();
}
public
static
void
initPageVariables
(
JellyContext
context
)
{
...
...
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