tree e5e7d0caffc2538e2cc005705410c0496628d741
parent 90b180ee1edd17b8dca34ea9e58624818d2ee15a
author Daniel Mihalyi <daniel.mihalyi@mattakis.com> 1408380331 +0200
committer Ian Rogers <irogers@google.com> 1408385608 -0700

Optimized instrumentation listener handling

Some instrumentation listener lists may be modified while iterating
over the list to deliver an instrumentation event. Therefore the
previous implementation copied the list of listeners before starting
the iteration.

This new implementation only copies the list of instrumentation
listeners when the list is changed. Instances of the list are
reference counted using std::shared_ptr<>.

Change-Id: I1b84db1f2042836dc1110925243f49e5790156d6