1 files changed, 39 insertions, 0 deletions
diff --git a/storage/perfschema/mysqld_thd_manager.cc b/storage/perfschema/mysqld_thd_manager.cc
new file mode 100644
index 00000000..61282b7e
--- /dev/null
+++ b/storage/perfschema/mysqld_thd_manager.cc
@@ -0,0 +1,39 @@
+#include "mysqld_thd_manager.h"
+#include "sql_class.h"
+
+static Global_THD_manager manager;
+Global_THD_manager* Global_THD_manager::get_instance()
+{
+  return &manager;
+}
+
+struct find_thd_arg
+{
+  Find_THD_Impl *func;
+  THD *cur;
+};
+
+static my_bool find_thd_cb(THD *tmp, find_thd_arg *arg)
+{
+  arg->cur= tmp;
+  return (*arg->func)(tmp);
+}
+
+THD* Global_THD_manager::find_thd(Find_THD_Impl *func)
+{
+  find_thd_arg arg= {func, NULL};
+  if (THD_list_iterator::iterator()->iterate(find_thd_cb, &arg))
+    return arg.cur;
+  return NULL;
+}
+
+static my_bool do_for_all_cb(THD *tmp, Do_THD_Impl *arg)
+{
+  (*arg)(tmp);
+  return 0;
+}
+
+void Global_THD_manager::do_for_all_thd(Do_THD_Impl *arg)
+{
+  THD_list_iterator::iterator()->iterate(do_for_all_cb, arg);
+}