Class: Async::Container::Thread

Inherits:
Channel
  • Object
show all
Defined in:
lib/async/container/thread.rb

Overview

Represents a running child thread from the point of view of the parent container.

Defined Under Namespace

Classes: Exit, Instance, Status

Instance Attribute Summary

Attributes inherited from Channel

#in, #out

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Channel

#close_read, #close_write, #receive

Constructor Details

#initialize(name: nil) ⇒ Thread

Initialize the thread.



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# File 'lib/async/container/thread.rb', line 95

def initialize(name: nil)
	super()
	
	@status = nil
	
	@thread = yield(self)
	@thread.report_on_exception = false
	@thread.name = name
	
	@waiter = ::Thread.new do
		begin
			@thread.join
		rescue Exit => exit
			finished(exit.error)
		rescue Interrupt
			# Graceful shutdown.
			finished
		rescue Exception => error
			finished(error)
		else
			finished
		end
	end
end

Class Method Details

.fork(**options) ⇒ Object 



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# File 'lib/async/container/thread.rb', line 85

def self.fork(**options)
	self.new(**options) do |thread|
		::Thread.new do
			yield Instance.for(thread)
		end
	end
end

Instance Method Details

#close ⇒ Object

Invoke #terminate! and then #wait for the child thread to exit.



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# File 'lib/async/container/thread.rb', line 139

def close
	self.terminate!
	self.wait
ensure
	super
end

#interrupt! ⇒ Object

Raise Interrupt in the child thread.



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# File 'lib/async/container/thread.rb', line 147

def interrupt!
	@thread.raise(Interrupt)
end

#name ⇒ Object

Get the name of the thread.



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# File 'lib/async/container/thread.rb', line 128

def name
	@thread.name
end

#name=(value) ⇒ Object

Set the name of the thread.



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# File 'lib/async/container/thread.rb', line 122

def name= value
	@thread.name = value
end

#terminate! ⇒ Object

Raise Async::Container::Terminate in the child thread.



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# File 'lib/async/container/thread.rb', line 152

def terminate!
	@thread.raise(Terminate)
end

#to_s ⇒ Object

A human readable representation of the thread.



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# File 'lib/async/container/thread.rb', line 134

def to_s
	"\#<#{self.class} #{@thread.name}>"
end

#wait ⇒ Object

Wait for the thread to exit and return he exit status.



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# File 'lib/async/container/thread.rb', line 158

def wait
	if @waiter
		@waiter.join
		@waiter = nil
	end
	
	return @status
end