Check local sequential consistency in dbsim

- Release commit time critical section in callback
- Check the consistency inside commit order critical section

Other: Add 2pc switch to dbsim

dbsim/db_params.hpp

@@ -27,42 +27,27 @@ namespace db
 {
     struct params
     {
-        size_t n_servers;
-        size_t n_clients;
-        size_t n_transactions;
-        size_t n_rows;
-        size_t max_data_size; // Maximum size of write set data payload.
-        bool random_data_size; // If true, randomize data payload size.
-        size_t alg_freq;
-        bool sync_wait;
-        std::string topology;
-        std::string wsrep_provider;
-        std::string wsrep_provider_options;
-        std::string status_file;
-        int debug_log_level;
-        int fast_exit;
-        int thread_instrumentation;
-        bool cond_checks;
-        int tls_service;
-        params()
-            : n_servers(0)
-            , n_clients(0)
-            , n_transactions(0)
-            , n_rows(1000)
-            , max_data_size(8)
-            , random_data_size(false)
-            , alg_freq(0)
-            , sync_wait(false)
-            , topology()
-            , wsrep_provider()
-            , wsrep_provider_options()
-            , status_file("status.json")
-            , debug_log_level(0)
-            , fast_exit(0)
-            , thread_instrumentation()
-            , cond_checks()
-            , tls_service()
-        { }
+        size_t n_servers{0};
+        size_t n_clients{0};
+        size_t n_transactions{0};
+        size_t n_rows{1000};
+        size_t max_data_size{8}; // Maximum size of write set data payload.
+        bool random_data_size{false}; // If true, randomize data payload size.
+        /* Asymmetric lock granularity frequency. */
+        size_t alg_freq{0};
+        /* Whether to sync wait before start of transaction. */
+        bool sync_wait{false};
+        std::string topology{};
+        std::string wsrep_provider{};
+        std::string wsrep_provider_options{};
+        std::string status_file{"status.json"};
+        int debug_log_level{0};
+        int fast_exit{0};
+        int thread_instrumentation{0};
+        bool cond_checks{false};
+        int tls_service{0};
+        bool check_sequential_consistency{false};
+        bool do_2pc{false};
     };
 
     params parse_args(int argc, char** argv);