Class: HTTPX::Selector

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/httpx/selector.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Selector

Returns a new instance of Selector.



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# File 'lib/httpx/selector.rb', line 19

def initialize
  @timers = Timers.new
  @selectables = []
  @is_timer_interval = false
end

Instance Method Details

#deregister(io) ⇒ Object

deregisters io from selectables.



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# File 'lib/httpx/selector.rb', line 112

def deregister(io)
  @selectables.delete(io)
end

#each(&blk) ⇒ Object 



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# File 'lib/httpx/selector.rb', line 25

def each(&blk)
  @selectables.each(&blk)
end

#each_connection(&block) ⇒ Object 



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# File 'lib/httpx/selector.rb', line 86

def each_connection(&block)
  return enum_for(__method__) unless block

  @selectables.each do |c|
    case c
    when Resolver::Resolver
      c.each_connection(&block)
    when Connection
      yield c
    end
  end
end

#find_connection(request_uri, options) ⇒ Object 



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# File 'lib/httpx/selector.rb', line 99

def find_connection(request_uri, options)
  each_connection.find do |connection|
    connection.match?(request_uri, options)
  end
end

#find_mergeable_connection(connection) ⇒ Object 



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# File 'lib/httpx/selector.rb', line 105

def find_mergeable_connection(connection)
  each_connection.find do |ch|
    ch != connection && ch.mergeable?(connection)
  end
end

#find_resolver(options) ⇒ Object 



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# File 'lib/httpx/selector.rb', line 78

def find_resolver(options)
  res = @selectables.find do |c|
    c.is_a?(Resolver::Resolver) && options == c.options
  end

  res.multi if res
end

#next_tick ⇒ Object 



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# File 'lib/httpx/selector.rb', line 29

def next_tick
  catch(:jump_tick) do
    timeout = next_timeout
    if timeout && timeout.negative?
      @timers.fire
      throw(:jump_tick)
    end

    begin
      select(timeout) do |c|
        c.log(level: 2) { "[#{c.state}] selected#{" after #{timeout} secs" unless timeout.nil?}..." }

        c.call
      end

      @timers.fire
    rescue TimeoutError => e
      @timers.fire(e)
    end
  end
rescue StandardError => e
  each_connection do |c|
    c.emit(:error, e)
  end
rescue Exception # rubocop:disable Lint/RescueException
  each_connection do |conn|
    conn.force_reset
    conn.disconnect
  end

  raise
end

#register(io) ⇒ Object

register io.



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# File 'lib/httpx/selector.rb', line 117

def register(io)
  return if @selectables.include?(io)

  @selectables << io
end

#terminate ⇒ Object 



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# File 'lib/httpx/selector.rb', line 62

def terminate
  # array may change during iteration
  selectables = @selectables.reject(&:inflight?)

  selectables.delete_if do |sel|
    sel.terminate
    sel.state == :closed
  end

  until selectables.empty?
    next_tick

    selectables &= @selectables
  end
end