--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: "Sets the status of the global ``thread critical'' condition and returns it. When set to <tt>true</tt>, prohibits scheduling of any existing thread. Does not block new threads from being created and run. Certain thread operations (such as stopping or killing a thread, sleeping in the current thread, and raising an exception) may cause a thread to be scheduled even when in a critical section. <tt>Thread::critical</tt> is not intended for daily use: it is primarily there to support folks writing threading libraries."
full_name: Thread::critical=
is_singleton: true
name: critical=
params: |
  Thread.critical= boolean   => true or false

visibility: public