Package org.multiverse
Interface MultiverseConstants
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- 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
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Field Summary
Fields Modifier and Type Field Description 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 theBugshaker
.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.
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Field Detail
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SHAKE_BUGS
static final boolean SHAKE_BUGS
Indicates of the bugshaker is enabled (for more information see theBugshaker
. If disabled, no overhead because it can be removed by the JIT.
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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).
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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.
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LOCKMODE_NONE
static final int LOCKMODE_NONE
- See Also:
- Constant Field Values
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LOCKMODE_READ
static final int LOCKMODE_READ
- See Also:
- Constant Field Values
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LOCKMODE_WRITE
static final int LOCKMODE_WRITE
- See Also:
- Constant Field Values
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LOCKMODE_EXCLUSIVE
static final int LOCKMODE_EXCLUSIVE
- See Also:
- Constant Field Values
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