MDEV-16329 [2/5] refactor binlog and cache_mngr

pump up binlog and cache manager to level of binlog_log_row_internal

sql/handler.cc

@@ -7249,16 +7249,28 @@ int handler::binlog_log_row(TABLE *table,
                             const uchar *after_record,
                             Log_func *log_func)
 {
-  bool error;
   THD *thd= table->in_use;
   DBUG_ENTER("binlog_log_row");
 
   if (!thd->binlog_table_maps &&
       thd->binlog_write_table_maps())
     DBUG_RETURN(HA_ERR_RBR_LOGGING_FAILED);
 
-  error= (*log_func)(thd, table, row_logging_has_trans,
-                     before_record, after_record);
+  DBUG_ASSERT(thd->is_current_stmt_binlog_format_row());
+  DBUG_ASSERT((WSREP_NNULL(thd) && wsrep_emulate_bin_log)
+              || mysql_bin_log.is_open());
+
+  auto *cache_mngr= thd->binlog_setup_trx_data();
+  if (cache_mngr == NULL)
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+  bool is_trans= row_logging_has_trans;
+  /* Ensure that all events in a GTID group are in the same cache */
+  if (thd->variables.option_bits & OPTION_GTID_BEGIN)
+    is_trans= 1;
+
+  bool error= (*log_func)(thd, table, &mysql_bin_log, cache_mngr,
+                          is_trans, before_record, after_record);
   DBUG_RETURN(error ? HA_ERR_RBR_LOGGING_FAILED : 0);
 }
 

sql/handler.h

@@ -654,7 +654,11 @@ given at all. */
 #define HA_CREATE_PRINT_ALL_OPTIONS       (1UL << 26)
 
 typedef ulonglong alter_table_operations;
-typedef bool Log_func(THD*, TABLE*, bool, const uchar*, const uchar*);
+
+class MYSQL_BIN_LOG;
+class binlog_cache_mngr;
+typedef bool Log_func(THD*, TABLE*, MYSQL_BIN_LOG *, binlog_cache_mngr *, bool,
+                      const uchar*, const uchar*);
 
 /*
   These flags are set by the parser and describes the type of
@@ -5623,11 +5627,6 @@ inline const LEX_CSTRING *table_case_name(HA_CREATE_INFO *info, const LEX_CSTRIN
   return ((lower_case_table_names == 2 && info->alias.str) ? &info->alias : name);
 }
 
-typedef bool Log_func(THD*, TABLE*, bool, const uchar*, const uchar*);
-int binlog_log_row(TABLE* table,
-                   const uchar *before_record,
-                   const uchar *after_record,
-                   Log_func *log_func);
 
 /**
   @def MYSQL_TABLE_IO_WAIT

sql/log.cc

@@ -2088,7 +2088,7 @@ binlog_truncate_trx_cache(THD *thd, binlog_cache_mngr *cache_mngr, bool all)
   else
     cache_mngr->trx_cache.restore_prev_position();
 
-  DBUG_ASSERT(thd->binlog_get_pending_rows_event(is_transactional) == NULL);
+  DBUG_ASSERT(cache_mngr->trx_cache.pending() == NULL);
   DBUG_RETURN(error);
 }
 
@@ -6309,30 +6309,51 @@ binlog_cache_mngr *THD::binlog_get_cache_mngr() const
   is @c true, the pending event is returned from the transactional cache.
   Otherwise from the non-transactional cache.
 
-  @param is_transactional  @c true indicates a transactional cache,
+  @param cache_mngr        cache manager to return pending row from
+  @param use_trans_cache   @c true indicates a transactional cache,
                            otherwise @c false a non-transactional.
   @return
     The row event if any. 
 */
-Rows_log_event*
-THD::binlog_get_pending_rows_event(bool is_transactional) const
+Rows_log_event* binlog_get_pending_rows_event(binlog_cache_mngr *cache_mngr,
+                                              bool use_trans_cache)
 {
   Rows_log_event* rows= NULL;
-  binlog_cache_mngr *const cache_mngr= binlog_get_cache_mngr();
 
   /*
     This is less than ideal, but here's the story: If there is no cache_mngr,
     prepare_pending_rows_event() has never been called (since the cache_mngr
     is set up there). In that case, we just return NULL.
    */
   if (cache_mngr)
+    rows= cache_mngr->get_binlog_cache_data(use_trans_cache)->pending();
+  return rows;
+}
+
+int binlog_flush_pending_rows_event(THD *thd, bool stmt_end,
+                                    bool is_transactional,
+                                    MYSQL_BIN_LOG *bin_log,
+                                    binlog_cache_mngr *cache_mngr,
+                                    bool use_trans_cache)
+{
+  /*
+    Mark the event as the last event of a statement if the stmt_end
+    flag is set.
+  */
+  int error= 0;
+  auto *pending= cache_mngr->get_binlog_cache_data(use_trans_cache)->pending();
+  if (pending)
   {
-    binlog_cache_data *cache_data=
-      cache_mngr->get_binlog_cache_data(use_trans_cache(this, is_transactional));
+    if (stmt_end)
+    {
+      pending->set_flags(Rows_log_event::STMT_END_F);
+      thd->reset_binlog_for_next_statement();
+    }
 
-    rows= cache_data->pending();
+    error= bin_log->flush_and_set_pending_rows_event(thd, 0, cache_mngr,
+                                                     is_transactional);
   }
-  return (rows);
+  return error;
 }
 
 /**
@@ -6342,18 +6363,18 @@ THD::binlog_get_pending_rows_event(bool is_transactional) const
   into the non-transactional cache.
 
   @param evt               a pointer to the row event.
-  @param is_transactional  @c true indicates a transactional cache,
+  @param use_trans_cache   @c true indicates a transactional cache,
                            otherwise @c false a non-transactional.
 */
 void
-THD::binlog_set_pending_rows_event(Rows_log_event* ev, bool is_transactional)
+THD::binlog_set_pending_rows_event(Rows_log_event* ev, bool use_trans_cache)
 {
   binlog_cache_mngr *const cache_mngr= binlog_setup_trx_data();
 
   DBUG_ASSERT(cache_mngr);
 
   binlog_cache_data *cache_data=
-    cache_mngr->get_binlog_cache_data(use_trans_cache(this, is_transactional));
+    cache_mngr->get_binlog_cache_data(use_trans_cache);
 
   cache_data->set_pending(ev);
 }
@@ -6402,18 +6423,18 @@ MYSQL_BIN_LOG::remove_pending_rows_event(THD *thd, bool is_transactional)
 int
 MYSQL_BIN_LOG::flush_and_set_pending_rows_event(THD *thd,
                                                 Rows_log_event* event,
+                                                binlog_cache_mngr *cache_mngr,
                                                 bool is_transactional)
 {
   DBUG_ENTER("MYSQL_BIN_LOG::flush_and_set_pending_rows_event(event)");
   DBUG_ASSERT(WSREP_EMULATE_BINLOG(thd) || mysql_bin_log.is_open());
   DBUG_PRINT("enter", ("event: %p", event));
 
-  binlog_cache_mngr *const cache_mngr= thd->binlog_get_cache_mngr();
-
   DBUG_ASSERT(cache_mngr);
 
+  bool should_use_trans_cache= use_trans_cache(thd, is_transactional);
   binlog_cache_data *cache_data=
-    cache_mngr->get_binlog_cache_data(use_trans_cache(thd, is_transactional));
+    cache_mngr->get_binlog_cache_data(should_use_trans_cache);
 
   DBUG_PRINT("info", ("cache_mngr->pending(): %p", cache_data->pending()));
 
@@ -6442,7 +6463,7 @@ MYSQL_BIN_LOG::flush_and_set_pending_rows_event(THD *thd,
     delete pending;
   }
 
-  thd->binlog_set_pending_rows_event(event, is_transactional);
+  thd->binlog_set_pending_rows_event(event, should_use_trans_cache);
 
   DBUG_RETURN(0);
 }

sql/log.h

@@ -725,6 +725,7 @@ class MYSQL_BIN_LOG: public TC_LOG, private MYSQL_LOG
 #if !defined(MYSQL_CLIENT)
 
   int flush_and_set_pending_rows_event(THD *thd, Rows_log_event* event,
+                                       binlog_cache_mngr *cache_mngr,
                                        bool is_transactional);
   int remove_pending_rows_event(THD *thd, bool is_transactional);
 
@@ -1175,6 +1176,13 @@ File open_binlog(IO_CACHE *log, const char *log_file_name,
 void make_default_log_name(char **out, const char* log_ext, bool once);
 void binlog_reset_cache(THD *thd);
 bool write_annotated_row(THD *thd);
+int binlog_flush_pending_rows_event(THD *thd, bool stmt_end,
+                                    bool is_transactional,
+                                    MYSQL_BIN_LOG *bin_log,
+                                    binlog_cache_mngr *cache_mngr,
+                                    bool use_trans_cache);
+Rows_log_event* binlog_get_pending_rows_event(binlog_cache_mngr *cache_mngr,
+                                              bool use_trans_cache);
 
 extern MYSQL_PLUGIN_IMPORT MYSQL_BIN_LOG mysql_bin_log;
 extern handlerton *binlog_hton;

sql/log_event.h

@@ -4926,13 +4926,16 @@ class Write_rows_log_event : public Rows_log_event
 #endif
 #if defined(MYSQL_SERVER) 
   static bool binlog_row_logging_function(THD *thd, TABLE *table,
+                                          MYSQL_BIN_LOG *bin_log,
+                                          binlog_cache_mngr *cache_mngr,
                                           bool is_transactional,
                                           const uchar *before_record
                                           __attribute__((unused)),
                                           const uchar *after_record)
   {
     DBUG_ASSERT(!table->versioned(VERS_TRX_ID));
-    return thd->binlog_write_row(table, is_transactional, after_record);
+    return thd->binlog_write_row(table, bin_log, cache_mngr, is_transactional,
+                                 after_record);
   }
 #endif
 
@@ -5009,12 +5012,14 @@ class Update_rows_log_event : public Rows_log_event
 
 #ifdef MYSQL_SERVER
   static bool binlog_row_logging_function(THD *thd, TABLE *table,
+                                          MYSQL_BIN_LOG *bin_log,
+                                          binlog_cache_mngr *cache_mngr,
                                           bool is_transactional,
                                           const uchar *before_record,
                                           const uchar *after_record)
   {
     DBUG_ASSERT(!table->versioned(VERS_TRX_ID));
-    return thd->binlog_update_row(table, is_transactional,
+    return thd->binlog_update_row(table, bin_log, cache_mngr, is_transactional,
                                   before_record, after_record);
   }
 #endif
@@ -5098,13 +5103,15 @@ class Delete_rows_log_event : public Rows_log_event
 #endif
 #ifdef MYSQL_SERVER
   static bool binlog_row_logging_function(THD *thd, TABLE *table,
+                                          MYSQL_BIN_LOG *bin_log,
+                                          binlog_cache_mngr *cache_mngr,
                                           bool is_transactional,
                                           const uchar *before_record,
                                           const uchar *after_record
                                           __attribute__((unused)))
   {
     DBUG_ASSERT(!table->versioned(VERS_TRX_ID));
-    return thd->binlog_delete_row(table, is_transactional,
+    return thd->binlog_delete_row(table, bin_log, cache_mngr, is_transactional,
                                   before_record);
   }
 #endif