class Syskit::LiveProperty

Syskit-side representation of the property of an actual live task

Attributes

remote_property[RW]

The remote property

It is used as a cache mechanism, and should never be used directly. It is initialized and accessed by the API on {TaskContext}

task_context[R]

The underlying task context

Public Class Methods

new(task_context, name, type) click to toggle source

Calls superclass method

# File lib/syskit/live_property.rb, line 18
def initialize(task_context, name, type)
    super(name, type)
    @task_context = task_context
    @remote_property = nil
end

Public Instance Methods

logged?() click to toggle source

Whether this property is being logged

# File lib/syskit/live_property.rb, line 14
def logged?
    !!log_stream
end

needs_commit?() click to toggle source

Whether this property needs to be written on the remote side

# File lib/syskit/live_property.rb, line 25
def needs_commit?
    @value && (!@remote_value || (@value != @remote_value))
end

raw_write(value, _timestap = nil) click to toggle source

Update this property with a Typelib object

The object's type and value will not be checked

Calls superclass method

# File lib/syskit/live_property.rb, line 46
def raw_write(value, _timestap = nil)
    super
    task_context.queue_property_update_if_needed
end

write(value, _timestamp = nil) click to toggle source

Request updating this property with the given value

The property will be updated only at the task's configuration time, or when Syskit::TaskContext#commit_properties is called.

@param [Typelib::Type,Object] value the property value @param [Time] _timestamp ignored, for compatibility with

{Orocos::Property}

Calls superclass method

# File lib/syskit/live_property.rb, line 37
def write(value, _timestamp = nil)
    if task_context.would_use_property_update?
        super
    end
end