CxxUtils: Fix potential race in ConcurrentRangeMap::trim().

When finishing the trim() operation, the begin pointer must be updated before queuing the dummy impl object for discard. Otherwise, another thread could potentially see a pointer to a deleted object.

Trying to fix infrequent crashes in CondCont_test observed in nightlies and CI.

This merge request affects 1 package:

• Control/CxxUtils

Adding @ssnyder as watcher

added Core master review-pending-level-1 labels

CI Result SUCCESS

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-20181-2019-01-06-12-16
Athena: number of compilation errors 0, warnings 1
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST 31941] (for remote access see the FAQ for MR reviewers)

The changes look ok. Adding review-approved label.

L1 shifter

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit a9cba9d8

mentioned in merge request !20192 (merged)

added sweep:ignore label