SlowProbeProxyTimer

An abstract ProxyTimer that provides callback methods which are called when a task takes longer than the specified maximum runtime or if a task is observed to be taking longer than the specified maximum runtime.

Note: This makes assumptions that the underlying Timer will execute tasks sequentially in order to catch slow running tasks during execution. If the underlying Timer executes tasks in parallel the callback slowTaskExecuting will become unreliable. However, the slowTaskCompleted callback will remain reliable but must be a thread-safe implementation.
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Observation of slow task execution is performed when scheduling more work to avoid the overhead of another thread or timer checking on tasks. This results in lower overhead but means that slow running tasks may not be observed while executing. However, they will trigger a callback to the slowTaskCompleted regardless of whether additional work is scheduled.

Linear Supertypes

ProxyTimer, Timer, AnyRef, Any

Instance Constructors

new SlowProbeProxyTimer(maxRuntime: Duration)

Abstract Value Members

abstract def self: Timer

The underlying Timer instance used for proxying methods.
The underlying Timer instance used for proxying methods.

Attributes
protected
Definition Classes
ProxyTimer
abstract def slowTaskCompleted(elapsed: Duration): Unit

Called when a task takes longer than the specified maximum duration
Called when a task takes longer than the specified maximum duration

Attributes
protected
abstract def slowTaskExecuting(elapsed: Duration): Unit

Called when a task is observed to be executing longer than the specified maximum duration
Called when a task is observed to be executing longer than the specified maximum duration

Attributes
protected

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def doAt[A](time: Time)(f: ⇒ A): Future[A]

Performs an operation at the specified time.
Performs an operation at the specified time. Interrupting the Future will cancel the scheduled timer task, if not too late.

Definition Classes
Timer
Note
Interrupts from returned Future will be translated into a task cancellation if and only if this Timer honors cancellations in schedule(Time)(f).
def doLater[A](delay: Duration)(f: ⇒ A): Future[A]

Performs an operation after the specified delay.
Performs an operation after the specified delay. Interrupting the Future will cancel the scheduled timer task, if not too late.

Definition Classes
Timer
Note
Interrupts from returned Future will be translated into a task cancellation if and only if this Timer honors cancellations in schedule(Time)(f).
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def schedule(period: Duration)(f: ⇒ Unit): TimerTask

Run f every elapsed period, starting period from now.
Run f every elapsed period, starting period from now.

Definition Classes
Timer
final def schedule(when: Time, period: Duration)(f: ⇒ Unit): TimerTask

Run f at time when; subsequently run f at every elapsed period.
Run f at time when; subsequently run f at every elapsed period.

Definition Classes
Timer
Note
If when is negative or undefined, it will be treated as Time.epoch.
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If period is negative or undefined, the timer task will be rescheduled immediately (i.e., period will be treated as Duration.Zero).
final def schedule(when: Time)(f: ⇒ Unit): TimerTask

Run f at time when.
Run f at time when.

Definition Classes
Timer
Note
If when is negative or undefined, it will be treated as Time.epoch.
def scheduleOnce(when: Time)(f: ⇒ Unit): TimerTask

Attributes
protected
Definition Classes
SlowProbeProxyTimer → ProxyTimer → Timer
def schedulePeriodically(when: Time, period: Duration)(f: ⇒ Unit): TimerTask

Attributes
protected
Definition Classes
SlowProbeProxyTimer → ProxyTimer → Timer
def stop(): Unit

Stop the timer.
Stop the timer. Pending tasks are cancelled. The timer is unusable after being stopped.

Definition Classes
ProxyTimer → Timer
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
SlowProbeProxyTimer → AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package util

abstract class SlowProbeProxyTimer extends ProxyTimer

Instance Constructors

new SlowProbeProxyTimer(maxRuntime: Duration)

Abstract Value Members

abstract def self: Timer

abstract def slowTaskCompleted(elapsed: Duration): Unit

abstract def slowTaskExecuting(elapsed: Duration): Unit

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def doAt[A](time: Time)(f: ⇒ A): Future[A]

def doLater[A](delay: Duration)(f: ⇒ A): Future[A]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def schedule(period: Duration)(f: ⇒ Unit): TimerTask

final def schedule(when: Time, period: Duration)(f: ⇒ Unit): TimerTask

final def schedule(when: Time)(f: ⇒ Unit): TimerTask

def scheduleOnce(when: Time)(f: ⇒ Unit): TimerTask

def schedulePeriodically(when: Time, period: Duration)(f: ⇒ Unit): TimerTask

def stop(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from ProxyTimer

Inherited from Timer

Inherited from AnyRef

Inherited from Any

Ungrouped