[Rock-dev] [rock] #23: orocos.rb: transaction mechanism
rock
noreply at opendfki.de
Fri May 20 07:45:04 CEST 2011
#23: orocos.rb: transaction mechanism
---------------------------+------------------------------------------------
Reporter: sylvain.joyeux | Owner: rock-dev-mailing-list
Type: enhancement | Status: new
Priority: major | Component: toolchain
Keywords: |
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there are currently no way in orocos.rb to make "transaction", i.e. to
make sure that changes to running components are rolled back when the
script quits.
This is a problem if, for instance, one would like to make sure that
connections created in a script are destroyed when the script quits.
The proposed syntax would be:
Orocos.guard do
# Use #get instead of TaskContext.get
task = get "task_name"
task2 = get "task_name2"
# (1) Manipulate task and task2 like normal tasks
# The new Orocos.exec call loops and monitors the
# tasks that have been created with #get
#
# It displays information messages for state changes
Orocos.exec
# When the block quits, manipulations done
# in (1) are un-done. What is un-done can be controlled
# by options to Orocos.guard
# Orocos.guard :properties => false
end
Orocos.run would call Orocos.guard
--
Ticket URL: <http://rock.opendfki.de/ticket/23>
rock <http://rock.opendfki.de>
rock: the robot construction kit
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