[tor-bugs] #25950 [Core Tor/Tor]: Run "accounting_run_housekeeping" with a periodic event.

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#25950: Run "accounting_run_housekeeping" with a periodic event.
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 Reporter:  nickm                                |          Owner:  nickm
     Type:  defect                               |         Status:
                                                 |  assigned
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.4.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  034-roadmap-subtask,                 |  Actual Points:
  034-triage-20180328, 034-included-20180328     |
Parent ID:  #25375                               |         Points:
 Reviewer:                                       |        Sponsor:
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Description changed by nickm:

Old description:



New description:

 Here's an implementation sketch:
   * Make accounting_add_bytes() check whether limits are exceeded.
 Refactor the code as needed to make this check fast.
   * If a limit is exceeded, schedule consider_hibernation().
   * Also schedule consider_hibernation() again based on "shutdown_time",
 "hibernate_end_time", and "interval_wakeup_time".
   * Pull "accounting_run_housekeeping" apart:
     * Other logic to set interval_end_time if it isn't set but accounting
 is enabled.
     * A periodic event, only scheduled when network is on and accounting
 is enabled, to record bandwidth usage.  Tie this into the or_state_save
 event.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25950#comment:1>
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