Class ConditionVariable
In: ext/fastthread/fastthread.c
Parent: Object

ConditionVariable objects augment class Mutex. Using condition variables, it is possible to suspend while in the middle of a critical section until a resource becomes available.

Example:

  require 'thread'

  mutex = Mutex.new
  resource = ConditionVariable.new

  a = Thread.new {
    mutex.synchronize {
      # Thread 'a' now needs the resource
      resource.wait(mutex)
      # 'a' can now have the resource
    }
  }

  b = Thread.new {
    mutex.synchronize {
      # Thread 'b' has finished using the resource
      resource.signal
    }
  }

Methods

broadcast   marshal_load   signal   wait  

Public Instance methods

Wakes up all threads waiting for this condition.

for marshalling mutexes and condvars

signal

Wakes up the first thread in line waiting for this condition.

wait

Releases the lock held in mutex and waits; reacquires the lock on wakeup.

[Validate]