class TopologyTimestampPlusEpsilonTracker extends NamedLogging with TimeAwaiter with FlagCloseable
Compute and synchronise the effective timestamps
Transaction validation and processing depends on the topology state at the given sequencer time. Therefore, we would have to inspect every event first if there is a topology state and wait until all the topology processing has finished before evaluation the transaction. This would be slow and sequential.
Therefore, we future date our topology transactions with an "effective time", computed from the sequencerTime + domainParameters.topologyChangeDelay.
However, the domainParameters can change and so can the topologyChangeDelay. Therefore we need to be a bit careful when computing the effective time and track the changes to the topologyChangeDelay parameter accordingly.
This class (hopefully) takes care of this logic
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- new TopologyTimestampPlusEpsilonTracker(timeouts: ProcessingTimeout, loggerFactory: NamedLoggerFactory)
Type Members
- case class ReaderState(count: Int, readers: MultiSet[String]) extends Product with Serializable
- Definition Classes
- FlagCloseable
Value Members
- object ReaderState extends Serializable
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- final def !=(arg0: Any): Boolean
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- final def ##: Int
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- def adjustEpsilon(effectiveTime: EffectiveTime, sequencingTime: SequencedTime, epsilon: NonNegativeFiniteDuration)(implicit traceContext: TraceContext): Option[NonNegativeFiniteDuration]
adjust epsilon if it changed
adjust epsilon if it changed
- returns
scala.None$ if epsilon is unchanged or wasn't set before (e.g. when called for the first time), otherwise scala.Some$ the previous epsilon
- def adjustTimestampForTick(sequencingTime: SequencedTime)(implicit traceContext: TraceContext, executionContext: ExecutionContext): FutureUnlessShutdown[EffectiveTime]
- def adjustTimestampForUpdate(sequencingTime: SequencedTime)(implicit traceContext: TraceContext, executionContext: ExecutionContext): FutureUnlessShutdown[EffectiveTime]
- final def asInstanceOf[T0]: T0
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- def awaitKnownTimestamp(timestamp: CantonTimestamp): Option[Future[Unit]]
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- protected
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- def awaitKnownTimestampUS(timestamp: CantonTimestamp)(implicit traceContext: TraceContext): Option[FutureUnlessShutdown[Unit]]
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- final def close(): Unit
Blocks until all earlier tasks have completed and then prevents further tasks from being run.
Blocks until all earlier tasks have completed and then prevents further tasks from being run.
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- @SuppressWarnings()
- def closingTimeout: FiniteDuration
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- FlagCloseable
- def currentKnownTime: CantonTimestamp
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- TopologyTimestampPlusEpsilonTracker → TimeAwaiter
- def effectiveTimeProcessed(effectiveTime: EffectiveTime): Unit
- final def eq(arg0: AnyRef): Boolean
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- implicit def errorLoggingContext(implicit traceContext: TraceContext): ErrorLoggingContext
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- def expireTimeAwaiter(): Unit
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- def internalPerformUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): UnlessShutdown[Future[A]]
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- def isClosing: Boolean
Check whether we're closing.
Check whether we're closing. Susceptible to race conditions; unless you're using using this as a flag to the retry lib or you really know what you're doing, prefer performUnlessClosing and friends.
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- def keepTrackOfOpenFutures: Boolean
track running futures on shutdown
track running futures on shutdown
set to true to get detailed information about all futures that did not complete during shutdown. if set to false, we don't do anything.
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- def logger: TracedLogger
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- val loggerFactory: NamedLoggerFactory
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- TopologyTimestampPlusEpsilonTracker → NamedLogging
- def maxSleepMillis: Long
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- implicit def namedLoggingContext(implicit traceContext: TraceContext): NamedLoggingContext
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- final def notifyAll(): Unit
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- def notifyAwaitedFutures(upToInclusive: CantonTimestamp): Unit
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- def onClosed(): Unit
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- TopologyTimestampPlusEpsilonTracker → FlagCloseable
- def performUnlessClosing[A](name: String)(f: => A)(implicit traceContext: TraceContext): UnlessShutdown[A]
Performs the task given by
funless a shutdown has been initiated.Performs the task given by
funless a shutdown has been initiated. The shutdown will only begin afterfcompletes, but other tasks may execute concurrently withf, if started using this function, or one of the other variants (performUnlessClosingF and performUnlessClosingEitherT). The tasks are assumed to take less than closingTimeout to complete.DO NOT CALL
this.closeas part off, because it will result in a deadlock.- f
The task to perform
- returns
scala.None$ if a shutdown has been initiated. Otherwise the result of the task.
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- FlagCloseable
- def performUnlessClosingEitherT[E, R](name: String, onClosing: => E)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, R]
Performs the EitherT[Future] given by
etfunless a shutdown has been initiated, in which case the provided error is returned instead.Performs the EitherT[Future] given by
etfunless a shutdown has been initiated, in which case the provided error is returned instead. Bothetfand the error are lazy;etfis only evaluated if there is no shutdown, the error only if we're shutting down. The shutdown will only begin afteretfcompletes, but other tasks may execute concurrently withetf, if started using this function, or one of the other variants (performUnlessClosing and performUnlessClosingF). The tasks are assumed to take less than closingTimeout to complete.DO NOT CALL
this.closeas part ofetf, because it will result in a deadlock.- etf
The task to perform
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- def performUnlessClosingEitherTF[E, R](name: String, onClosing: => E)(etf: => EitherT[Future, E, Future[R]])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, Future[R]]
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- def performUnlessClosingEitherU[E, R](name: String)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[FutureUnlessShutdown, E, R]
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- def performUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]
Performs the Future given by
funless a shutdown has been initiated.Performs the Future given by
funless a shutdown has been initiated. The future is lazy and not evaluated during shutdown. The shutdown will only begin afterfcompletes, but other tasks may execute concurrently withf, if started using this function, or one of the other variants (performUnlessClosing and performUnlessClosingEitherT). The tasks are assumed to take less than closingTimeout to complete.DO NOT CALL
this.closeas part off, because it will result in a deadlock.- f
The task to perform
- returns
The future completes with com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if a shutdown has been initiated. Otherwise the result of the task wrapped in com.digitalasset.canton.lifecycle.UnlessShutdown.Outcome.
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- def performUnlessClosingUSF[A](name: String)(f: => FutureUnlessShutdown[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]
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- FlagCloseable
- def runOnShutdown[T](task: RunOnShutdown)(implicit traceContext: TraceContext): Unit
Register a task to run when shutdown is initiated.
Register a task to run when shutdown is initiated.
You can use this for example to register tasks that cancel long-running computations, whose termination you can then wait for in "closeAsync".
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- def runStateChanged(waitingState: Boolean = false): Unit
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- @VisibleForTesting()
- final def synchronized[T0](arg0: => T0): T0
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- val timeouts: ProcessingTimeout
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- TopologyTimestampPlusEpsilonTracker → FlagCloseable
- def toString(): String
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- final def wait(arg0: Long, arg1: Int): Unit
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