SERVER-35432 Add a method for printing out information about a slow transaction

1 files changed, 13 insertions, 0 deletions

diff --git a/src/mongo/db/session.h b/src/mongo/db/session.h
index 51c4ad71370..6f5cf1d0243 100644
--- a/src/mongo/db/session.h
+++ b/src/mongo/db/session.h
@@ -358,6 +358,11 @@ public:
         return _singleTransactionStats;
     }
 
+    repl::OpTime getSpeculativeTransactionReadOpTimeForTest() const {
+        stdx::lock_guard<stdx::mutex> lk(_mutex);
+        return _speculativeTransactionReadOpTime;
+    }
+
     /**
      * If this session is holding stashed locks in _txnResourceStash, reports the current state of
      * the session using the provided builder. Locks the session object's mutex while running.
@@ -377,6 +382,14 @@ public:
      */
     BSONObj reportStashedState() const;
 
+    /**
+     * This method returns a string with information about a slow transaction. The format of the
+     * logging string produced should match the format used for slow operation logging. A
+     * transaction must be completed (committed or aborted) and a valid LockStats reference must be
+     * passed in order for this method to be called.
+     */
+    std::string transactionInfoForLog(const SingleThreadedLockStats* lockStats);
+
     void addMultikeyPathInfo(MultikeyPathInfo info) {
         _multikeyPathInfo.push_back(std::move(info));
     }