[tor-bugs] #10059 [Tor]: capture tor log messages before control connection is opened

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#10059: capture tor log messages before control connection is opened
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 Reporter:  mcs                              |          Owner:  nickm
     Type:  defect                           |         Status:  new
 Priority:  Medium                           |      Milestone:  Tor:
Component:  Tor                              |  0.2.???
 Severity:  Normal                           |        Version:  Tor:
 Keywords:  tbb-usability, extdev-interview  |  unspecified
Parent ID:  #9675                            |     Resolution:
  Sponsor:                                   |  Actual Points:
                                             |         Points:
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Changes (by mcs):

 * severity:   => Normal


Comment:

 Replying to [comment:9 nickm]:
 > I'm okay with doing an in-tor solution for this if you decide one is
 necessary; just let me know.  It would probably involve adding a log type
 that lets you store the last N kb of log messages in a queue, and later
 query them via the control port.

 (I am revisiting some old tickets today.) For Tor Launcher, it would be
 convenient to have a mechanism in tor such as the one you described. One
 tricky thing is that we would want to be sure Tor Launcher receives the
 entire, correct stream of messages (without duplicates or gaps), so we
 would need to figure out how to merge the queued messages with the ones we
 receive in response to SETEVENTS NOTICE WARN ERR. I am not sure how to do
 that unless tor assigns a sequence number or something similar to each
 message. Or it might work for tor to provide an option to send the queued
 messages as events as soon as the SETEVENTS command is received.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10059#comment:12>
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