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behaviour.rb
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behaviour.rb
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module Concurrent
module Actor
# Actors have modular architecture, which is achieved by combining a light core with chain of
# behaviours. Each message or internal event propagates through the chain allowing the
# behaviours react based on their responsibility.
#
# - {Behaviour::Linking}:
#
# > {include:Actor::Behaviour::Linking}
#
# - {Behaviour::Awaits}:
#
# > {include:Actor::Behaviour::Awaits}
#
# - {Behaviour::Pausing}:
#
# > {include:Actor::Behaviour::Pausing}
#
# - {Behaviour::Supervising}:
#
# > {include:Actor::Behaviour::Supervising}
#
# - {Behaviour::Supervising}:
#
# > {include:Actor::Behaviour::Supervising}
#
# - {Behaviour::ExecutesContext}:
#
# > {include:Actor::Behaviour::ExecutesContext}
#
# - {Behaviour::ErrorsOnUnknownMessage}:
#
# > {include:Actor::Behaviour::ErrorsOnUnknownMessage}
#
# - {Behaviour::Termination}:
#
# > {include:Actor::Behaviour::Termination}
#
# - {Behaviour::RemovesChild}:
#
# > {include:Actor::Behaviour::RemovesChild}
#
# If needed new behaviours can be added, or old one removed to get required behaviour.
#
# - {Context} uses
# {include:Actor::Behaviour.basic_behaviour_definition}
#
# - {RestartingContext} uses
# {include:Actor::Behaviour.restarting_behaviour_definition}
module Behaviour
MESSAGE_PROCESSED = ::Object.new
require 'concurrent/actor/behaviour/abstract'
require 'concurrent/actor/behaviour/awaits'
require 'concurrent/actor/behaviour/buffer'
require 'concurrent/actor/behaviour/errors_on_unknown_message'
require 'concurrent/actor/behaviour/executes_context'
require 'concurrent/actor/behaviour/linking'
require 'concurrent/actor/behaviour/pausing'
require 'concurrent/actor/behaviour/removes_child'
require 'concurrent/actor/behaviour/sets_results'
require 'concurrent/actor/behaviour/supervising'
require 'concurrent/actor/behaviour/termination'
# Array of behaviours and their construction parameters.
#
# [[Behaviour::SetResults, :terminate!],
# [Behaviour::RemovesChild],
# [Behaviour::Termination],
# [Behaviour::Linking],
# [Behaviour::Awaits],
# [Behaviour::ExecutesContext],
# [Behaviour::ErrorsOnUnknownMessage]]
#
# @see '' its source code
def self.basic_behaviour_definition
[*base(:terminate!),
*linking,
*user_messages]
end
# Array of behaviours and their construction parameters.
#
# [[Behaviour::SetResults, :pause!],
# [Behaviour::RemovesChild],
# [Behaviour::Termination],
# [Behaviour::Linking],
# [Behaviour::Pausing],
# [Behaviour::Supervising, :reset!, :one_for_one],
# [Behaviour::Awaits],
# [Behaviour::ExecutesContext],
# [Behaviour::ErrorsOnUnknownMessage]]
#
# @see '' its source code
def self.restarting_behaviour_definition(handle = :reset!, strategy = :one_for_one)
[*base(:pause!),
*linking,
*supervised,
*supervising(handle, strategy),
*user_messages]
end
# @see '' its source code
def self.base(on_error)
[[SetResults, on_error],
# has to be before Termination to be able to remove children from terminated actor
RemovesChild,
Termination]
end
# @see '' its source code
def self.linking
[Linking]
end
# @see '' its source code
def self.supervised
[Pausing]
end
# @see '' its source code
def self.supervising(handle = :reset!, strategy = :one_for_one)
[[Behaviour::Supervising, handle, strategy]]
end
# @see '' its source code
def self.user_messages
[Awaits,
ExecutesContext,
ErrorsOnUnknownMessage]
end
end
end
end