Class: RubyReactor::Template::Result

Inherits:
Base
  • Object
show all
Defined in:
lib/ruby_reactor/template/result.rb

Constant Summary collapse

PARK_GRACE =

Seconds a WORKER-side reader blocks in-thread before parking. Long enough that a unit finishing "immediately" (the common case) resolves without a park round-trip; short enough that a genuinely slow unit frees the worker thread quickly. Not configurable — the tunable bounds are async_wait_timeout (blocking) and async_park_timeout (parked).

5.0

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(step_name, path = nil) ⇒ Result

Returns a new instance of Result.



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# File 'lib/ruby_reactor/template/result.rb', line 8

def initialize(step_name, path = nil)
  super()
  @step_name = step_name
  @path = path
end

Instance Attribute Details

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/ruby_reactor/template/result.rb', line 6

def path
  @path
end

#step_name ⇒ Object (readonly)

Returns the value of attribute step_name.



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# File 'lib/ruby_reactor/template/result.rb', line 6

def step_name
  @step_name
end

Instance Method Details

#inspect ⇒ Object 



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# File 'lib/ruby_reactor/template/result.rb', line 26

def inspect
  if @path
    "result(:#{@step_name}, #{@path.inspect})"
  else
    "result(:#{@step_name})"
  end
end

#resolve(context) ⇒ Object

For an ordinary step this is exactly what it always was: read the recorded result. The async branch only engages when there is no recorded result AND the context carries an async reference for this name, so a synchronous reference costs one extra hash lookup and nothing else.



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# File 'lib/ruby_reactor/template/result.rb', line 18

def resolve(context)
  value = context.get_result(@step_name)
  value = resolve_async_reference(context) if value.nil?
  return nil if value.nil?

  @path ? extract_path(value, @path) : value
end