[OpenSIPS-Devel] [OpenSIPS/opensips] 99879a: ratelimit: Minor speed-ups inside critical regions

[Liviu Chircu]

  Branch: refs/heads/master
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 99879ab98a8dd6a42a65bea59399eef374863461
      https://github.com/OpenSIPS/opensips/commit/99879ab98a8dd6a42a65bea59399eef374863461
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2024-09-13 (Fri, 13 Sep 2024)

  Changed paths:
    M modules/ratelimit/ratelimit_helper.c

  Log Message:
  -----------
  ratelimit: Minor speed-ups inside critical regions

* avoid repetitive de-referencing operations by copying pipe address
    on the stack, across three different functions
* merge multiple invocations of time() inside critical region


  Commit: 377ba7fe295f22d8c7d0ab13c2239b8eab29f3cb
      https://github.com/OpenSIPS/opensips/commit/377ba7fe295f22d8c7d0ab13c2239b8eab29f3cb
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2024-09-13 (Fri, 13 Sep 2024)

  Changed paths:
    M modules/ratelimit/ratelimit.h
    M modules/ratelimit/ratelimit_helper.c

  Log Message:
  -----------
  ratelimit: Avoid replicating "zero" pipes excessively

This patch makes it so any time a pipe's `.counter` value reaches 0, it
will only get broadcasted to neighbouring cluster nodes exactly 3 more
times, after which it will be completely skipped from being included in
the replication packet.  This counter is then reset to 3 as soon as the
pipe's value is incremented locally.


Compare: https://github.com/OpenSIPS/opensips/compare/7022a48985be...377ba7fe295f

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