Class: HTTPX::Pool

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Pool

Returns a new instance of Pool.



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# File 'lib/httpx/pool.rb', line 15

def initialize
  @resolvers = {}
  @_resolver_ios = {}
  @timers = Timers::Group.new
  @selector = Selector.new
  @connections = []
  @connected_connections = 0
end

Instance Method Details

#close(connections = @connections) ⇒ Object 



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# File 'lib/httpx/pool.rb', line 49

def close(connections = @connections)
  @timers.cancel
  connections = connections.reject(&:inflight?)
  connections.each(&:close)
  next_tick until connections.none? { |c| @connections.include?(c) }
  @resolvers.each_value do |resolver|
    resolver.close unless resolver.closed?
  end if @connections.empty?
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/httpx/pool.rb', line 24

def empty?
  @connections.empty?
end

#find_connection(uri, options) ⇒ Object

opens a connection to the IP reachable through uri. Many hostnames are reachable through the same IP, so we try to maximize pipelining by opening as few connections as possible.



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# File 'lib/httpx/pool.rb', line 76

def find_connection(uri, options)
  @connections.find do |connection|
    connection.match?(uri, options)
  end
end

#init_connection(connection, _options) ⇒ Object 



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# File 'lib/httpx/pool.rb', line 59

def init_connection(connection, _options)
  resolve_connection(connection)
  connection.timers = @timers
  connection.on(:open) do
    @connected_connections += 1
  end
  connection.on(:unreachable) do
    resolver = find_resolver_for(connection)
    resolver.uncache(connection) if resolver
    resolve_connection(connection)
  end
end

#next_tick ⇒ Object 



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# File 'lib/httpx/pool.rb', line 28

def next_tick
  catch(:jump_tick) do
    timeout = [next_timeout, @timers.wait_interval].compact.min
    if timeout && timeout.negative?
      @timers.fire
      throw(:jump_tick)
    end

    @selector.select(timeout, &:call)

    @timers.fire
  end
rescue Interrupt
  @connections.each(&:reset)
  raise
rescue StandardError => e
  @connections.each do |connection|
    connection.emit(:error, e)
  end
end