Class: Celluloid::Call

Inherits:
Object
  • Object
show all
Defined in:
lib/celluloid/calls.rb,
lib/celluloid/call/sync.rb,
lib/celluloid/call/async.rb,
lib/celluloid/call/block.rb

Overview

Calls represent requests to an actor

Direct Known Subclasses

Async, Sync

Defined Under Namespace

Classes: Async, Block, Sync

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(method, arguments = [], block = nil) ⇒ Call

Returns a new instance of Call.



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# File 'lib/celluloid/calls.rb', line 6

def initialize(method, arguments = [], block = nil)
  @retry = 0
  @method = method
  @arguments = arguments
  if block
    if Celluloid.exclusive?
      # FIXME: nicer exception
      fail "Cannot execute blocks on sender in exclusive mode"
    end
    @block = Proxy::Block.new(Celluloid.mailbox, self, block)
  else
    @block = nil
  end
end

Instance Attribute Details

#arguments ⇒ Object (readonly)

Returns the value of attribute arguments.



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# File 'lib/celluloid/calls.rb', line 4

def arguments
  @arguments
end

#block ⇒ Object (readonly)

Returns the value of attribute block.



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# File 'lib/celluloid/calls.rb', line 4

def block
  @block
end

#method ⇒ Object (readonly)

Returns the value of attribute method.



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# File 'lib/celluloid/calls.rb', line 4

def method
  @method
end

Instance Method Details

#check(obj) ⇒ Object 



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# File 'lib/celluloid/calls.rb', line 37

def check(obj)
  # NOTE: don't use respond_to? here
  begin
    meth = obj.method(@method)
  rescue NameError
    raise NoMethodError, "undefined method `#{@method}' for #<#{obj.class}:0x#{obj.object_id.to_s(16)}>"
  end

  arity = meth.arity

  if arity >= 0
    fail ArgumentError, "wrong number of arguments (#{@arguments.size} for #{arity})" if @arguments.size != arity
  elsif arity < -1
    mandatory_args = -arity - 1
    fail ArgumentError, "wrong number of arguments (#{@arguments.size} for #{mandatory_args}+)" if arguments.size < mandatory_args
  end
rescue => ex
  raise AbortError.new(ex)
end

#dispatch(obj) ⇒ Object 



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# File 'lib/celluloid/calls.rb', line 25

def dispatch(obj)
  check(obj)
  _b = @block && @block.to_proc
  obj.public_send(@method, *@arguments, &_b)
  #     rescue Celluloid::TaskTimeout => ex
  #       raise ex unless ( @retry += 1 ) <= RETRY_CALL_LIMIT
  #       puts "retrying"
  #       Internals::Logger.warn("TaskTimeout at Call dispatch. Retrying in #{RETRY_CALL_WAIT} seconds. ( Attempt #{@retry} of #{RETRY_CALL_LIMIT} )")
  #       sleep RETRY_CALL_WAIT
  #       retry
end

#execute_block_on_receiver ⇒ Object 



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# File 'lib/celluloid/calls.rb', line 21

def execute_block_on_receiver
  @block && @block.execution = :receiver
end