This method is deprecated or moved on the latest stable version.
The last existing version (v1_8_7_330) is shown here.
critical()
public
Returns the status of the global
“thread critical” condition.
/*
* call-seq:
* Thread.critical => true or false
*
* Returns the status of the global ``thread critical'' condition.
*/
static VALUE
rb_thread_critical_get()
{
return rb_thread_critical?Qtrue:Qfalse;
}