Merge from 3.23.48 tree

BitKeeper/etc/logging_ok:
  auto-union
Docs/manual.texi:
  Auto merged
innobase/dict/dict0dict.c:
  Auto merged
innobase/include/srv0srv.h:
  Auto merged
innobase/mem/mem0dbg.c:
  Auto merged
innobase/os/os0file.c:
  Auto merged
innobase/que/que0que.c:
  Auto merged
innobase/rem/rem0rec.c:
  Auto merged
innobase/row/row0sel.c:
  Auto merged
innobase/srv/srv0srv.c:
  Auto merged
innobase/srv/srv0start.c:
  Auto merged
innobase/sync/sync0arr.c:
  Auto merged
innobase/trx/trx0trx.c:
  Auto merged
innobase/trx/trx0undo.c:
  Auto merged
myisam/mi_check.c:
  Auto merged
mysql-test/t/join.test:
  Auto merged
mysys/hash.c:
  Auto merged
scripts/mysql_config.sh:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/handler.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/sql_acl.cc:
  Auto merged

2 files changed, 35 insertions, 0 deletions

diff --git a/innobase/dict/dict0dict.c b/innobase/dict/dict0dict.c
index b5a826dde02..8311c508ccc 100644
--- a/innobase/dict/dict0dict.c
+++ b/innobase/dict/dict0dict.c
@@ -196,6 +196,38 @@ dict_mutex_exit_for_mysql(void)
 }
 	
 /************************************************************************
+Increments the count of open MySQL handles to a table. */
+
+void
+dict_table_increment_handle_count(
+/*==============================*/
+	dict_table_t*	table)	/* in: table */
+{
+	mutex_enter(&(dict_sys->mutex));
+
+	table->n_mysql_handles_opened++;
+	
+	mutex_exit(&(dict_sys->mutex));
+}
+
+/************************************************************************
+Decrements the count of open MySQL handles to a table. */
+
+void
+dict_table_decrement_handle_count(
+/*==============================*/
+	dict_table_t*	table)	/* in: table */
+{
+	mutex_enter(&(dict_sys->mutex));
+
+	ut_a(table->n_mysql_handles_opened > 0);
+
+	table->n_mysql_handles_opened--;
+	
+	mutex_exit(&(dict_sys->mutex));
+}
+
+/************************************************************************
 Gets the nth column of a table. */
 
 dict_col_t*
diff --git a/innobase/dict/dict0mem.c b/innobase/dict/dict0mem.c
index 019d6ef334f..1f9a44aca35 100644
--- a/innobase/dict/dict0mem.c
+++ b/innobase/dict/dict0mem.c
@@ -59,6 +59,9 @@ dict_mem_table_create(
 	table->n_def = 0;
 	table->n_cols = n_cols + DATA_N_SYS_COLS;
 	table->mem_fix = 0;
+
+	table->n_mysql_handles_opened = 0;
+
 	table->cached = FALSE;
 	
 	table->cols = mem_heap_alloc(heap, (n_cols + DATA_N_SYS_COLS)