Created
January 8, 2019 18:34
-
-
Save mrbald/97d813253e3c56f83714c4457695646e to your computer and use it in GitHub Desktop.
Scala syntax for Java 8 StampedLock
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
object StampedLockSyntax { | |
def syncRead[T](lock: StampedLock)(block: => T): T = { | |
val stamp = lock.readLock() | |
try { | |
block | |
} finally { | |
lock.unlockRead(stamp) | |
} | |
} | |
def syncOptRead[T](lock: StampedLock)(block: => T): T = { | |
val stamp = lock.tryOptimisticRead() | |
block match { | |
case res: T if lock.validate(stamp) => res | |
case _ => syncRead(lock)(block) | |
} | |
} | |
def syncWrite[T](lock: StampedLock)(block: => T): T = { | |
val stamp = lock.writeLock() | |
try { | |
block | |
} finally { | |
lock.unlockWrite(stamp) | |
} | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment