empiredan commented on code in PR #1074:
URL: https://github.com/apache/incubator-pegasus/pull/1074#discussion_r931105112
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src/rdsn/include/dsn/utility/metrics.h:
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@@ -168,6 +171,16 @@ class metric_entity : public ref_counter
~metric_entity();
+ // Close all "closeable" metrics owned by this entity.
+ //
+ // `async` is used to control if the close operations are asynchronous or
not. It is set to
+ // true by default, which means all metrics owned by this entity will be
closed asynchronously
+ // without waiting for the close operations to be finished.
+ //
+ // Otherwise, once `async` is set to false, close() will be blocked until
the close operations
+ // are finished.
+ void close(bool async = true);
Review Comment:
OK, we can use enum class instead.
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