SERVER-21597 Fix connPoolStats to work with many NetworkInterfaces

1 files changed, 10 insertions, 0 deletions

diff --git a/src/mongo/executor/task_executor_pool.h b/src/mongo/executor/task_executor_pool.h
index 00a828b3c27..15319589c4e 100644
--- a/src/mongo/executor/task_executor_pool.h
+++ b/src/mongo/executor/task_executor_pool.h
@@ -36,6 +36,7 @@
 namespace mongo {
 namespace executor {
 
+struct ConnectionPoolStats;
 class TaskExecutor;
 
 /**
@@ -101,6 +102,15 @@ public:
      */
     TaskExecutor* getFixedExecutor();
 
+    /**
+     * Appends connection information from all of the executors in the pool.
+     *
+     * NOTE: this method returns approximate stats. To avoid blocking operations on the
+     * pool, we don't lock for appendConnectionStats, so data gathered across connection pools
+     * will be from slightly different points in time.
+     */
+    void appendConnectionStats(ConnectionPoolStats* stats) const;
+
 private:
     AtomicUInt32 _counter;