Merge pull request #22000 from civanch/mixing_thread_safety1

Thread safe piliup histogram for mixing
cms-sw · Jan 28, 2018 · fba039c · fba039c
2 parents 10b588d + e9e0626
commit fba039c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Mixing/Base/src/PileUp.cc b/Mixing/Base/src/PileUp.cc
@@ -68,7 +68,7 @@ namespace edm {
     Source_type_(config->sourcename_),
     averageNumber_(config->averageNumber_),
     intAverage_(static_cast<int>(averageNumber_)),
-    histo_(config->histo_),
+    histo_(std::make_shared<TH1F>(*config->histo_)),
     histoDistribution_(type_ == "histo"),
     probFunctionDistribution_(type_ == "probFunction"),
     poisson_(type_ == "poisson"),