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  1. OMG Issue

RTC — Sequence diagrams for activation/deactivation should be added

  • Key: RTC-4
  • Legacy Issue Number: 10479
  • Status: closed  
  • Source: Shibaura Institute of Technology ( Mr. Takeshi Sakamoto)
  • Summary:

    everity: Support Text

    Disposition: Resolution Proposed


    I think it is difficult to understand behavior. I think it would be better that sequence diagrams is added.

    Proposed Resolution

    [attachment:rtc-activate-sequence.png] [[BR]] Activate

    [attachment:rtc-activate-sequence2.png] [[BR]] Activate (Updated)

    [attachment:rtc-deactivate-sequence2.png] [[BR]] Deactivate


    According to the update of the state machine diagram in FTF-2 issue, Activate sequence diagrams was updated.

    – NoriakiAndo, 2006/12/4

    Should callbacks be executed in the thread of the method that triggered the callback or in the thread of the execution context they refer to? For example, if I call myContext::activate_component(myComp) and the activation fails, should on_aborting be called in my calling thread or in the thread represented by myContext?

    • Can the choice of thread be left to the implementation?
    • Can the observed concurrency be left to the implementation? That is, if activate_component returns with a failure, can I assume that on_aborting has already been called?

    I would propose that:

    • The specification already says that the relationship between execution contexts and physical threads is implementation-defined. Therefore, components should not make any assumption about what thread they are called from. The callback argument identified the relevant context; that is the only important thing.

    The observed behavior of the callback should be synchronous with the method that resulted in the callback. For example, if I call activate_component, I can assume that on_activate will have finished before activate_component returns. This behavior simplifies error propagation and the programming model in general.

    – RickWarren, 2006/12/4

  • Reported: RTC 1.0b1 — Tue, 5 Dec 2006 05:00 GMT
  • Disposition: Resolved — RTC 1.0
  • Disposition Summary:

    Add the non-normative example diagrams as described below.

  • Updated: Fri, 6 Mar 2015 20:58 GMT