Module: Rclrb::Fields

Defined in:

lib/rclrb/fields.rb

Overview

This module contains classes used to handle ROS messages. The content of Fields is internal API to rclrb and should not be directly called and is subject to change.

Defined Under Namespace

Classes: ArrayField, AtomicField, StringField, TimeField

Constant Summary

Float64Field =

AtomicField.new "0.0", "Float64Field", :double, :get_array_of_float64, :put_array_of_float64

Float32Field =

AtomicField.new "0.0", "Float32Field", :float, :get_array_of_float32, :put_array_of_float32

ByteField =

AtomicField.new "0", "ByteField", :uint8, :get_array_of_uint8, :put_array_of_uint8

CharField =

AtomicField.new "0", "CharField", :uint8, :get_array_of_uint8, :put_array_of_uint8

BoolField =

AtomicField.new "false", "BoolField", :bool, nil, nil

Int8Field =

AtomicField.new "0", "Int8Field", :int8, :get_array_of_int8, :put_array_of_int8

Int16Field =

AtomicField.new "0", "Int16Field", :int16, :get_array_of_int16, :put_array_of_int16

Int32Field =

AtomicField.new "0", "Int32Field", :int32, :get_array_of_int32, :put_array_of_int32

Int64Field =

AtomicField.new "0", "Int64Field", :int64, :get_array_of_int64, :put_array_of_int64

Uint8Field =

AtomicField.new "0", "Uint8Field", :uint8, :get_array_of_uint8, :put_array_of_uint8

Uint16Field =

AtomicField.new "0", "Uint16Field", :uint16, :get_array_of_uint16, :put_array_of_uint16

Uint32Field =

AtomicField.new "0", "Uint32Field", :uint32, :get_array_of_uint32, :put_array_of_uint32

Uint64Field =

AtomicField.new "0", "Uint64Field", :uint64, :get_array_of_uint64, :put_array_of_uint64

AtomicFields =

{ "float64" => Float64Field,
"float32" => Float32Field,
"char" => CharField,
"byte" => ByteField,
"bool" => BoolField,
"int8" => Int8Field,
"int16" => Int16Field,
"int32" => Int32Field,
"int64" => Int64Field,
"uint8" => Uint8Field,
"uint16" => Uint16Field,
"uint32" => Uint32Field,
"uint64" => Uint64Field,
"string" => StringField,
"builtin_interfaces/Time"   => TimeField }

Class Method Summary

• .__generic_fill_ros_message_array(array_pointer, value, field_size, &block) ⇒ Object

  This function is used for building generic fill_ros_message_array function, that will write array elements one-by-one and call block to add them.

• .__generic_parse_array(data, length, field_size, &block) ⇒ Object

  This function is used for building generic parse_ros_message_array function, that will read array elements one-by-one and call block to parse them.

Class Method Details

.__generic_fill_ros_message_array(array_pointer, value, field_size, &block) ⇒ Object

This function is used for building generic fill_ros_message_array function, that will write array elements one-by-one and call block to add them

# File 'lib/rclrb/fields.rb', line 17

def Fields.__generic_fill_ros_message_array array_pointer, value, field_size, &block
  for i in 0...value.length
    block.call array_pointer + i * field_size, value[i]
  end
end

.__generic_parse_array(data, length, field_size, &block) ⇒ Object

This function is used for building generic parse_ros_message_array function, that will read array elements one-by-one and call block to parse them

# File 'lib/rclrb/fields.rb', line 8

def Fields.__generic_parse_array data, length, field_size, &block
  array = []
  for i in 0...length
    ptr = data + i * field_size
    array.append block.call(ptr)
  end
  return array
end