1 files changed, 29 insertions, 0 deletions
diff --git a/storage/perfschema/mysqld_thd_manager.h b/storage/perfschema/mysqld_thd_manager.h
new file mode 100644
index 00000000..fbb6f86a
--- /dev/null
+++ b/storage/perfschema/mysqld_thd_manager.h
@@ -0,0 +1,29 @@
+#ifndef STORAGE_PERFSCHEMA_MYSQL_THD_MANAGER_INCLUDED
+#define STORAGE_PERFSCHEMA_MYSQL_THD_MANAGER_INCLUDED
+#include "my_global.h"
+#include "my_thread.h"
+
+class Find_THD_Impl
+{
+  public:
+  virtual ~Find_THD_Impl() {}
+  virtual bool operator()(THD *thd) = 0;
+};
+
+class Do_THD_Impl
+{
+  public:
+  virtual ~Do_THD_Impl() {}
+  virtual void operator()(THD*) = 0;
+};
+
+class Global_THD_manager
+{
+  public:
+  static Global_THD_manager* get_instance();
+  THD* find_thd(Find_THD_Impl *func);
+  void do_for_all_thd(Do_THD_Impl *arg);
+};
+
+ulong get_system_variable_hash_records(void);
+#endif