net.openhft.chronicle.queue.impl.table

Class AbstractTSQueueLock

java.lang.Object

net.openhft.chronicle.core.io.AbstractCloseable

net.openhft.chronicle.queue.impl.table.AbstractTSQueueLock

All Implemented Interfaces:

Closeable, AutoCloseable, net.openhft.chronicle.core.io.CloseableTracer, net.openhft.chronicle.core.io.QueryCloseable, net.openhft.chronicle.core.io.ReferenceOwner

Direct Known Subclasses:

TableStoreWriteLock, TSQueueLock

public abstract class AbstractTSQueueLock
extends net.openhft.chronicle.core.io.AbstractCloseable
implements net.openhft.chronicle.core.io.Closeable

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	dontRecoverLockTimeout
protected net.openhft.chronicle.core.values.LongValue	lock
protected File	path
protected net.openhft.chronicle.threads.TimingPauser	pauser
protected TableStore	tableStore
static long	UNLOCKED

Fields inherited from class net.openhft.chronicle.core.io.AbstractCloseable

CHECK_THREAD_SAFETY, WARN_NS

Fields inherited from interface net.openhft.chronicle.core.io.ReferenceOwner

INIT

Constructor Summary

Constructors

Constructor and Description
AbstractTSQueueLock(String lockKey, TableStore<?> tableStore, Supplier<net.openhft.chronicle.threads.TimingPauser> pauser)

Method Summary

Modifier and Type	Method and Description
boolean	forceLockIfProcessIsDead()
protected void	forceUnlock(long value) will only force unlock if you give it the correct pid
boolean	forceUnlockIfProcessIsDead() forces an unlock only if the process that currently holds the table store lock is no-longer running
boolean	forceUnlockIfProcessIsDeadOrCurrentProcess() force unlock only if the process that currently holds the lock is no-longer running or the current process is holding the lock
boolean	isLockedByCurrentProcess(LongConsumer notCurrentProcessConsumer)
long	lockedBy()
protected void	performClose()
protected boolean	threadSafetyCheck(boolean isUsed)

Methods inherited from class net.openhft.chronicle.core.io.AbstractCloseable

assertCloseablesClosed, clearUsedByThread, close, createdHere, disableCloseableTracing, enableCloseableTracing, isClosed, isClosing, isInUserThread, performCloseInBackground, referenceId, resetUsedByThread, shouldPerformCloseInBackground, shouldWaitForClosed, throwExceptionIfClosed, throwExceptionIfClosedInSetter, toString, unmonitor, waitForClosed, warnAndCloseIfNotClosed

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.openhft.chronicle.core.io.Closeable

close, closeQuietly, closeQuietly, notifyClosing

Methods inherited from interface net.openhft.chronicle.core.io.QueryCloseable

isClosed, isClosing, throwExceptionIfClosed

Methods inherited from interface net.openhft.chronicle.core.io.ReferenceOwner

referenceName, temporary

Field Detail

UNLOCKED

public static final long UNLOCKED

See Also:

Constant Field Values

dontRecoverLockTimeout

protected final boolean dontRecoverLockTimeout

lock

protected final net.openhft.chronicle.core.values.LongValue lock

pauser

protected final net.openhft.chronicle.threads.TimingPauser pauser

path

protected final File path

tableStore

protected final TableStore tableStore

Constructor Detail

AbstractTSQueueLock

public AbstractTSQueueLock(String lockKey,
                           TableStore<?> tableStore,
                           Supplier<net.openhft.chronicle.threads.TimingPauser> pauser)

Method Detail

performClose

protected void performClose()

Specified by:

performClose in class net.openhft.chronicle.core.io.AbstractCloseable

forceUnlock

protected void forceUnlock(long value)

will only force unlock if you give it the correct pid

Parameters:

value -

isLockedByCurrentProcess

public boolean isLockedByCurrentProcess(LongConsumer notCurrentProcessConsumer)

forceUnlockIfProcessIsDeadOrCurrentProcess

public boolean forceUnlockIfProcessIsDeadOrCurrentProcess()

force unlock only if the process that currently holds the lock is no-longer running or the current process is holding the lock

Returns:

true if successful, more formally, returns true if the lock was already unlocked, the lock was held by this process or the process that is holding the lock is no longer running, otherwise false is returned to indicate that the lock could not be removed

forceUnlockIfProcessIsDead

public boolean forceUnlockIfProcessIsDead()

forces an unlock only if the process that currently holds the table store lock is no-longer running

Returns:

true if successful, more formally, returns true if the lock was already unlocked, or the process that was holding the lock is no longer running, otherwise false is returned if it was able to remove the lock.

forceLockIfProcessIsDead

public boolean forceLockIfProcessIsDead()

Returns:

true if successful, more formally, returns true if the lock was original unlocked, or the process that was holding the lock is no longer running, otherwise false is returned if it is locked by another process

threadSafetyCheck

protected boolean threadSafetyCheck(boolean isUsed)

Overrides:

threadSafetyCheck in class net.openhft.chronicle.core.io.AbstractCloseable

lockedBy

public long lockedBy()

Returns:

the pid that had the locked or the returns UNLOCKED if it is not locked