Package com.intellij.util.concurrency

Class ReentrantLock2

java.lang.Object

com.intellij.util.concurrency.ReentrantLock

com.intellij.util.concurrency.ReentrantLock2

All Implemented Interfaces:

Sync, Sync2

public class ReentrantLock2
extends ReentrantLock
implements Sync2

Field Summary

Fields inherited from class com.intellij.util.concurrency.ReentrantLock

holds_, owner_

Fields inherited from interface com.intellij.util.concurrency.Sync

ONE_CENTURY, ONE_DAY, ONE_HOUR, ONE_MINUTE, ONE_SECOND, ONE_WEEK, ONE_YEAR

Constructor Summary

Constructors

Constructor	Description
ReentrantLock2()

Method Summary

Modifier and Type	Method	Description
void	acquire()	Wait (possibly forever) until successful passage.
boolean	attempt(long msecs)	Wait at most msecs to pass; report whether passed.

Methods inherited from class com.intellij.util.concurrency.ReentrantLock

holds, performActionWhenReleased, release, release

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.intellij.util.concurrency.Sync

release

Constructor Detail

ReentrantLock2

public ReentrantLock2()

Method Detail

acquire

public void acquire()

Description copied from interface: Sync

Wait (possibly forever) until successful passage. Fail only upon interuption. Interruptions always result in `clean' failures. On failure, you can be sure that it has not been acquired, and that no corresponding release should be performed. Conversely, a normal return guarantees that the acquire was successful.

Specified by:

acquire in interface Sync

Specified by:

acquire in interface Sync2

Overrides:

acquire in class ReentrantLock

attempt

public boolean attempt(long msecs)

Description copied from interface: Sync

Wait at most msecs to pass; report whether passed.

The method has best-effort semantics: The msecs bound cannot be guaranteed to be a precise upper bound on wait time in Java. Implementations generally can only attempt to return as soon as possible after the specified bound. Also, timers in Java do not stop during garbage collection, so timeouts can occur just because a GC intervened. So, msecs arguments should be used in a coarse-grained manner. Further, implementations cannot always guarantee that this method will return at all without blocking indefinitely when used in unintended ways. For example, deadlocks may be encountered when called in an unintended context.

Specified by:

attempt in interface Sync

Specified by:

attempt in interface Sync2

Overrides:

attempt in class ReentrantLock

Parameters:

msecs - the number of milleseconds to wait. An argument less than or equal to zero means not to wait at all. However, this may still require access to a synchronization lock, which can impose unbounded delay if there is a lot of contention among threads.

Returns:

true if acquired