Packages

  • package root
    Definition Classes
    root
  • package io

    This is the documentation for the ThreadCSO Library.

    This is the documentation for the ThreadCSO Library. Notable packages include:

    Definition Classes
    root
  • package threadcso

    The standard threadCSO API.

    The standard threadCSO API. Most modules using CSO will need only the declaration:

    import io.threadcso._

    The present version of the ThreadCSO library API is 1.2Rr (for some number r)

    The revision number (Rr) will change if bugs are corrected but the code remains consistent with the previous API. Its minor version number will change if there is a correction to the code that breaks consistency with the previous API. Its major version will change if there is a substantial change in the semantics of an important CSO construct.

    August 2017: changes 1.1 => 1.2

    • renaming of very many internal classes and packages
    • basic channel implementations are more efficient, in some case much more so
    • alternation reliability improved
    • debugger registration of alternations is no longer needed
    • home-grown semaphores can specify which component they are part of: this makes interpreting a stack backtrace very much easier
    • there is a flexible logging system that is compatible with the debugger

    April 2016: changes 1.0 => 1.1

    • Extended rendezvous read operator is now ?? (was ?)
    • Extended rendezvous read event notation is now =??=> (was =?=>>)
    • The notation inport ? f is now equivalent to f(inport?()) This makes for a tidier layout when the function f is an explicit functional expression.

    Feb 1 2017: changes 1.1R1 => 1.1R2

    • Removed dependencies on deprecated Java->Scala functions: replaced with .asJava
    @author Bernard Sufrin, Oxford
    $Revision: 286 $
    $Date: 2017-11-18 17:41:30 +0000 (Sat, 18 Nov 2017) $
    Definition Classes
    io
  • package semaphore
    Definition Classes
    threadcso
  • package jdk
    Definition Classes
    semaphore
  • BooleanSemaphore
  • CountingSemaphore
  • FastFlag
  • Flag
  • Latch
  • Semaphore

trait Semaphore extends AnyRef

Trait inherited by all semaphore implementations. All semaphores have available a virtual finite collection of tokens that their clients may acquire and release.

Linear Supertypes
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  1. Semaphore
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Visibility
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Abstract Value Members

  1. abstract def acquire(): Unit

    Wait until a token is free, then remove it from the collection.

  2. abstract def release(): Unit

    Release a token that may (but need not) have previously been acquired.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def cancel(): Unit

    Optional: cancel all threads waiting to acquire the semaphore: defined only in io.threadcso.semaphore.BooleanSemaphore and io.threadcso.semaphore.CountingSemaphore

  6. def cancelled(): Boolean

    True if the most recent semaphore acquisition was cancelled

  7. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. def down(): Unit

    same as acquire

    same as acquire

    Annotations
    @inline()
  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  10. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  11. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  12. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
  13. def getWaiting: Seq[Thread]

    Return an (approximate) list of the threads waiting to acquire a token from this semaphore.

    Return an (approximate) list of the threads waiting to acquire a token from this semaphore. Intended for use only by diagnostic components.

  14. def hashCode(): Int
    Definition Classes
    AnyRef → Any
  15. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  16. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. final def notify(): Unit
    Definition Classes
    AnyRef
  18. final def notifyAll(): Unit
    Definition Classes
    AnyRef
  19. def remaining(): Int

    Approximation to the number of acquires that could now succeed without having to wait.

    Approximation to the number of acquires that could now succeed without having to wait. Intended for use only by diagnostic components.

  20. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  21. def toString(): String
    Definition Classes
    AnyRef → Any
  22. def tryAcquire(timeoutNS: Long): Boolean

    Optional: Wait until a token is free, or until timeoutNS nanoseconds have elapsed.

    Optional: Wait until a token is free, or until timeoutNS nanoseconds have elapsed. In the former case acquire a token and return true; in the latter case return false.

  23. def up(): Unit

    same as release

    same as release

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

Inherited from AnyRef

Inherited from Any

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