net.openhft.chronicle.algo.locks

Interface ReadWriteUpdateLockingStrategy

All Superinterfaces:

LockingStrategy, ReadWriteLockingStrategy

All Known Subinterfaces:

ReadWriteUpdateWithWaitsLockingStrategy

All Known Implementing Classes:

VanillaReadWriteUpdateWithWaitsLockingStrategy

public interface ReadWriteUpdateLockingStrategy
extends ReadWriteLockingStrategy

Logic of read-write-update lock state transitions.

Read lock - could be several at the same time. Update lock - doesn't block reads, but couldn't be several update locks at the same time Write lock - exclusive

Method Summary

Modifier and Type	Method and Description
<T> void	downgradeUpdateToReadLock(Access<T> access, T t, long offset)
<T> void	downgradeWriteToUpdateLock(Access<T> access, T t, long offset)
boolean	isUpdateLocked(long state)
<T> boolean	tryUpdateLock(Access<T> access, T t, long offset)
<T> boolean	tryUpgradeReadToUpdateLock(Access<T> access, T t, long offset)
<T> boolean	tryUpgradeUpdateToWriteLock(Access<T> access, T t, long offset)
<T> void	updateUnlock(Access<T> access, T t, long offset)

Methods inherited from interface net.openhft.chronicle.algo.locks.ReadWriteLockingStrategy

downgradeWriteToReadLock, isReadLocked, isWriteLocked, readLockCount, readUnlock, tryReadLock, tryUpgradeReadToWriteLock, tryWriteLock, writeUnlock

Methods inherited from interface net.openhft.chronicle.algo.locks.LockingStrategy

getState, isLocked, lockCount, reset, resetState, sizeInBytes, toString, tryLock, unlock

Method Detail

tryUpdateLock

<T> boolean tryUpdateLock(Access<T> access,
                          T t,
                          long offset)

tryUpgradeReadToUpdateLock

<T> boolean tryUpgradeReadToUpdateLock(Access<T> access,
                                       T t,
                                       long offset)

tryUpgradeUpdateToWriteLock

<T> boolean tryUpgradeUpdateToWriteLock(Access<T> access,
                                        T t,
                                        long offset)

updateUnlock

<T> void updateUnlock(Access<T> access,
                      T t,
                      long offset)

downgradeUpdateToReadLock

<T> void downgradeUpdateToReadLock(Access<T> access,
                                   T t,
                                   long offset)

downgradeWriteToUpdateLock

<T> void downgradeWriteToUpdateLock(Access<T> access,
                                    T t,
                                    long offset)

isUpdateLocked

boolean isUpdateLocked(long state)