org.multiverse
Interface MultiverseConstants

All Known Subinterfaces:

GammaConstants, GammaObject, GammaTxnExecutor, OrElseBlock, TxnExecutor

All Known Implementing Classes:

AbstractGammaObject, AbstractGammaTxnExecutor, BaseGammaTxnRef, Bugshaker, FatFixedLengthGammaTxn, FatGammaTxnExecutor, FatMonoGammaTxn, FatVariableLengthGammaTxn, GammaOrElseBlock, GammaTxn, GammaTxnBoolean, GammaTxnConfig, GammaTxnDouble, GammaTxnInteger, GammaTxnLong, GammaTxnPool, GammaTxnRef, LeanFixedLengthGammaTxn, LeanGammaTxnExecutor, LeanMonoGammaTxn, LockMode, Tranlocal

public interface MultiverseConstants

An interface containing global constants. It is a final instead of something mutable so that the JIT can completely remove code if some condition has not been met. The advantage is that you don't have to pay to price for adding some kind of check, if it isn't used. The problem is that the scope is all classes loaded by some classloader, share the same configuration. So one STM implementation with sanity checks enabled and the other not, is not possible.

It is an interface so that is can be 'implemented' for easier access.

Author:

Peter Veentjer

Field Summary

static int	LOCKMODE_EXCLUSIVE
static int	LOCKMODE_NONE
static int	LOCKMODE_READ
static int	LOCKMODE_WRITE
static boolean	SHAKE_BUGS Indicates of the bugshaker is enabled (for more information see the Bugshaker.
static int	SPIN_YIELD Indicates how often the system should yield when it is spinning.
static boolean	TRACING_ENABLED Indicates if tracing (so seeing what is going on inside transactions) is enabled.

Field Detail

SHAKE_BUGS

static final boolean SHAKE_BUGS

Indicates of the bugshaker is enabled (for more information see the Bugshaker. If disabled, no overhead because it can be removed by the JIT.

TRACING_ENABLED

static final boolean TRACING_ENABLED

Indicates if tracing (so seeing what is going on inside transactions) is enabled. Normally this causes overhead of not used, with this flag the complete tracing logic can be removed by the JIT if disabled).

SPIN_YIELD

static final int SPIN_YIELD

Indicates how often the system should yield when it is spinning. When a thread is yielded, it gives the opportunity to another thread to make progress.

LOCKMODE_NONE

static final int LOCKMODE_NONE

See Also:

Constant Field Values

LOCKMODE_READ

static final int LOCKMODE_READ

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Constant Field Values

LOCKMODE_WRITE

static final int LOCKMODE_WRITE

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Constant Field Values

LOCKMODE_EXCLUSIVE

static final int LOCKMODE_EXCLUSIVE

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Constant Field Values