[tor-bugs] #27319 [Core Tor/Tor]: remove buf_get_oldest_chunk_timestamp()

[Tor Bug Tracker & Wiki]

#27319: remove buf_get_oldest_chunk_timestamp()
------------------------------+-------------------------------------
     Reporter:  cypherpunks3  |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: unspecified
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  datatypes, buffers, oom
Actual Points:                |  Parent ID:  #23878
       Points:                |   Reviewer:
      Sponsor:                |
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 buffers.c calls `monotime_coarse_get_stamp()` to store a timestamp per
 chunk, marking when it was allocated. This is weird layering for a simple
 bytes container.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27319>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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