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-rw-r--r--test/cpp/util/proto_reflection_descriptor_database.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/test/cpp/util/proto_reflection_descriptor_database.h b/test/cpp/util/proto_reflection_descriptor_database.h
index 4bb9c21a92..bc25fb0f5c 100644
--- a/test/cpp/util/proto_reflection_descriptor_database.h
+++ b/test/cpp/util/proto_reflection_descriptor_database.h
@@ -32,6 +32,7 @@
*/
#include <memory>
+#include <mutex>
#include <unordered_map>
#include <unordered_set>
#include <vector>
@@ -98,6 +99,7 @@ class ProtoReflectionDescriptorDatabase
std::unordered_set<string> missing_symbols_;
std::unordered_map<string, std::unordered_set<int>> missing_extensions_;
std::unordered_map<string, std::vector<int>> cached_extension_numbers_;
+ std::mutex stream_mutex_;
google::protobuf::SimpleDescriptorDatabase cached_db_;
};