org.jruby.internal.runtime
Class ThreadService
java.lang.Object
org.jruby.internal.runtime.ThreadService
public class ThreadService
- extends java.lang.Object
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ThreadService
public ThreadService(Ruby runtime)
disposeCurrentThread
public void disposeCurrentThread()
getCurrentContext
public ThreadContext getCurrentContext()
- In order to provide an appropriate execution context for a given thread,
we store ThreadContext instances in a threadlocal. This method is a utility
to get at that threadlocal context from anywhere in the program it may
not be immediately available. This method should be used sparingly, and
if it is possible to pass ThreadContext on the argument list, it is
preferable.
Description of behavior
The threadlocal does not actually contain the ThreadContext directly;
instead, it contains a SoftReference that holds the ThreadContext. This
is to allow new threads to enter the system and execute Ruby code with
a valid context, but still allow that context to garbage collect if the
thread stays alive much longer. We use SoftReference here because
WeakReference is collected too quickly, resulting in very expensive
ThreadContext churn (and this originally lead to JRUBY-2261's leak of
adopted RubyThread instances).
- Returns:
- The ThreadContext instance for the current thread, or a new one
if none has previously been created or the old ThreadContext has been
collected.
getMainThread
public RubyThread getMainThread()
setMainThread
public void setMainThread(RubyThread thread)
getActiveRubyThreads
public RubyThread[] getActiveRubyThreads()
getRubyThreadGroup
public java.lang.ThreadGroup getRubyThreadGroup()
registerNewThread
public ThreadContext registerNewThread(RubyThread thread)
unregisterThread
public void unregisterThread(RubyThread thread)
setCritical
public void setCritical(boolean critical)
getCritical
public boolean getCritical()
waitForCritical
public void waitForCritical()
Copyright © 2002-2007 JRuby Team. All Rights Reserved.