Class: Zold::SpreadEntrance

Inherits:
Object
  • Object
show all
Defined in:
lib/zold/node/spread_entrance.rb

Overview

The entrance

Instance Method Summary collapse

Constructor Details

#initialize(entrance, wallets, remotes, address, log: Log::Quiet.new, ignore_score_weakeness: false) ⇒ SpreadEntrance

Returns a new instance of SpreadEntrance.



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# File 'lib/zold/node/spread_entrance.rb', line 42

def initialize(entrance, wallets, remotes, address, log: Log::Quiet.new, ignore_score_weakeness: false)
  raise 'Entrance can\'t be nil' if entrance.nil?
  @entrance = entrance
  raise 'Wallets can\'t be nil' if wallets.nil?
  raise 'Wallets must implement the contract of Wallets: method #find is required' unless wallets.respond_to?(:find)
  @wallets = wallets
  raise 'Remotes can\'t be nil' if remotes.nil?
  raise 'Remotes must be of type Remotes' unless remotes.is_a?(Remotes)
  @remotes = remotes
  raise 'Address can\'t be nil' if address.nil?
  @address = address
  raise 'Log can\'t be nil' if log.nil?
  @log = log
  @ignore_score_weakeness = ignore_score_weakeness
end

Instance Method Details

#push(id, body) ⇒ Object 



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# File 'lib/zold/node/spread_entrance.rb', line 98

def push(id, body)
  mods = @entrance.push(id, body)
  (mods + [id]).each do |m|
    next if @seen.include?(m)
    @seen << m
    @modified.push(m)
    @log.debug("Push scheduled for #{m}, queue size is #{@modified.size}")
  end
  mods
end

#start ⇒ Object 



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# File 'lib/zold/node/spread_entrance.rb', line 65

def start
  @entrance.start do
    @seen = Set.new
    @modified = Queue.new
    @push = Thread.start do
      Thread.current.abort_on_exception = true
      Thread.current.name = 'push'
      VerboseThread.new(@log).run(true) do
        loop do
          id = @modified.pop
          if @remotes.all.empty?
            @log.info("There are no remotes, won\'t spread #{id}")
          else
            Push.new(wallets: @wallets, remotes: @remotes, log: @log).run(
              ['push', "--ignore-node=#{@address}", id.to_s] +
              (@ignore_score_weakeness ? ['--ignore-score-weakness'] : [])
            )
          end
          @seen.delete(id)
        end
      end
    end
    begin
      yield(self)
    ensure
      @log.info('Waiting for spread entrance to finish...')
      @modified.clear
      @push.exit
      @log.info('Spread entrance finished, thread killed')
    end
  end
end

#to_json ⇒ Object 



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# File 'lib/zold/node/spread_entrance.rb', line 58

def to_json
  @entrance.to_json.merge(
    'modified': @modified.size,
    'push': @push.status
  )
end