[OpenSIPS-Devel] [OpenSIPS/opensips] d255a0: cfgutils: Fix "lock" operations during MI listing

[Liviu Chircu]

  Branch: refs/heads/3.2
  Home:   https://github.com/OpenSIPS/opensips
  Commit: d255a050ab34a2899e19220ff7681e2c4e47aa1f
      https://github.com/OpenSIPS/opensips/commit/d255a050ab34a2899e19220ff7681e2c4e47aa1f
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2023-12-18 (Mon, 18 Dec 2023)

  Changed paths:
    M modules/cfgutils/shvar.c

  Log Message:
  -----------
  cfgutils: Fix "lock" operations during MI listing

* fix missing lock check, causing too many unlocks
* always lock the shv during MI listing, to avoid reading garbage
    (e.g. partial data), as a WRITE is taking place in parallel

(cherry picked from commit 0c9aa6ffff31d40db9604be616b1b27053b53235)