test: test_workload_gen: Fixing a memleak.

Apparently, the FileStore does not cleanup after transactions once they
are applied, which may lead to huge memory leaks.

In this commit we simply 'delete m_tx' in the transaction's callback
class.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/test/test_workload_gen/workload_generator.h b/src/test/test_workload_gen/workload_generator.h
index b45baf9b5bd..21696e32f34 100644
--- a/src/test/test_workload_gen/workload_generator.h
+++ b/src/test/test_workload_gen/workload_generator.h
@@ -137,6 +137,8 @@ public:
       m_state->m_in_flight--;
       m_state->m_nr_runs++;
       m_state->m_cond.Signal();
+
+      delete m_tx;
     }
   };