Class: GRPC::Notifier

Inherits:
Object
  • Object
show all
Defined in:
src/ruby/lib/grpc/notifier.rb

Overview

Notifier is useful high-level synchronization primitive.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Notifier

Returns a new instance of Notifier.



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# File 'src/ruby/lib/grpc/notifier.rb', line 37

def initialize
  @mutex    = Mutex.new
  @cvar     = ConditionVariable.new
  @notified = false
  @payload  = nil
end

Instance Attribute Details

#notified ⇒ Object (readonly) Also known as: notified?

Returns the value of attribute notified.



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# File 'src/ruby/lib/grpc/notifier.rb', line 34

def notified
  @notified
end

#payload ⇒ Object (readonly)

Returns the value of attribute payload.



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# File 'src/ruby/lib/grpc/notifier.rb', line 34

def payload
  @payload
end

Instance Method Details

#notify(payload) ⇒ Object 



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# File 'src/ruby/lib/grpc/notifier.rb', line 50

def notify(payload)
  @mutex.synchronize do
    return Error.new('already notified') if notified?
    @payload  = payload
    @notified = true
    @cvar.signal
    return nil
  end
end

#wait ⇒ Object 



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# File 'src/ruby/lib/grpc/notifier.rb', line 44

def wait
  @mutex.synchronize do
    @cvar.wait(@mutex) until notified?
  end
end