[tor-bugs] #23881 [Core Tor/Tor]: Implement a way to utilise tor's logging system from Rust code

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#23881: Implement a way to utilise tor's logging system from Rust code
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     Reporter:  isis          |      Owner:  (none)
         Type:  enhancement   |     Status:  new
     Priority:  High          |  Milestone:  Tor: 0.3.3.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  rust, rust-pilot
Actual Points:                |  Parent ID:
       Points:  3             |   Reviewer:
      Sponsor:                |
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 We really need a way to use tor's logging subsystem from Rust code. I
 haven't ever really looked at our logging code because it always Just
 Works™, but it seems possible that we could construct/format `String`s to
 log in Rust code, choose a logging level, and throw the `String` across
 the FFI boundary, have the C code log it, then have the Rust code free it?

 I'm not sure what we'll do about logging in general moving forward, once
 (and if) more and more of tor is rewritten in Rust.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23881>
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