Class: HTTPX::Resolver::System

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

Constant Summary collapse

RESOLV_ERRORS = 
[Resolv::ResolvError,
Resolv::DNS::Requester::RequestError,
Resolv::DNS::EncodeError,
Resolv::DNS::DecodeError].freeze
DONE = 
1
ERROR = 
2

Constants inherited from Resolver

Resolver::FAMILY_TYPES, Resolver::RECORD_TYPES

Constants included from Loggable

Loggable::COLORS

Instance Attribute Summary collapse

Attributes inherited from Resolver

#family, #pool

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Resolver

#emit_addresses, #empty?

Methods included from Loggable

#log, #log_exception

Methods included from Callbacks

#callbacks_for?, #emit, #on, #once, #only

Constructor Details

#initialize(options) ⇒ System

Returns a new instance of System.



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# File 'lib/httpx/resolver/system.rb', line 29

def initialize(options)
  super(nil, options)
  @resolver_options = @options.resolver_options
  resolv_options = @resolver_options.dup
  timeouts = resolv_options.delete(:timeouts) || Resolver::RESOLVE_TIMEOUT
  @_timeouts = Array(timeouts)
  @timeouts = Hash.new { |tims, host| tims[host] = @_timeouts.dup }
  resolv_options.delete(:cache)
  @connections = []
  @queries = []
  @ips = []
  @pipe_mutex = Thread::Mutex.new
  @state = :idle
end

Instance Attribute Details

#state ⇒ Object (readonly)

Returns the value of attribute state.



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# File 'lib/httpx/resolver/system.rb', line 25

def state
  @state
end

Class Method Details

.multi? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/httpx/resolver/system.rb', line 20

def multi?
  false
end

Instance Method Details

#<<(connection) ⇒ Object 



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# File 'lib/httpx/resolver/system.rb', line 90

def <<(connection)
  @connections << connection
  resolve
end

#call ⇒ Object 



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# File 'lib/httpx/resolver/system.rb', line 66

def call
  case @state
  when :open
    consume
  end
  nil
end

#close ⇒ Object 



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# File 'lib/httpx/resolver/system.rb', line 54

def close
  transition(:closed)
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/httpx/resolver/system.rb', line 58

def closed?
  @state == :closed
end

#connections ⇒ Object 



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# File 'lib/httpx/resolver/system.rb', line 50

def connections
  EMPTY
end

#handle_socket_timeout(interval) ⇒ Object 



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# File 'lib/httpx/resolver/system.rb', line 95

def handle_socket_timeout(interval)
  error = HTTPX::ResolveTimeoutError.new(interval, "timed out while waiting on select")
  error.set_backtrace(caller)
  on_error(error)
end

#interests ⇒ Object 



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# File 'lib/httpx/resolver/system.rb', line 74

def interests
  return if @queries.empty?

  :r
end

#resolvers {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/httpx/resolver/system.rb', line 44

def resolvers
  return enum_for(__method__) unless block_given?

  yield self
end

#timeout ⇒ Object 



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# File 'lib/httpx/resolver/system.rb', line 80

def timeout
  return unless @queries.empty?

  _, connection = @queries.first

  return unless connection

  @timeouts[connection.origin.host].first
end

#to_io ⇒ Object 



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# File 'lib/httpx/resolver/system.rb', line 62

def to_io
  @pipe_read.to_io
end