SERVER-36697 Utilize TickSource for transactions timing metrics

This patch converts the existing transactions diagnostics timing related
metrics to use a TickSource to record transaction durations. The
TickSource is a high precision, mock-able time source for measuring
the passage of time. This patch also converts the existing unit tests
to use a mock TickSource, which allows the tests to fully virtualize
time, making them much faster and less flaky.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/mongo/s/catalog/replset_dist_lock_manager_test.cpp b/src/mongo/s/catalog/replset_dist_lock_manager_test.cpp
index e6527b548c3..231a3d62b2c 100644
--- a/src/mongo/s/catalog/replset_dist_lock_manager_test.cpp
+++ b/src/mongo/s/catalog/replset_dist_lock_manager_test.cpp
@@ -118,14 +118,14 @@ private:
 class RSDistLockMgrWithMockTickSource : public ReplSetDistLockManagerFixture {
 protected:
     RSDistLockMgrWithMockTickSource() {
-        getServiceContext()->setTickSource(stdx::make_unique<TickSourceMock>());
+        getServiceContext()->setTickSource(stdx::make_unique<TickSourceMock<>>());
     }
 
     /**
      * Returns the mock tick source.
      */
-    TickSourceMock* getMockTickSource() {
-        return dynamic_cast<TickSourceMock*>(getServiceContext()->getTickSource());
+    TickSourceMock<>* getMockTickSource() {
+        return dynamic_cast<TickSourceMock<>*>(getServiceContext()->getTickSource());
     }
 };