Class: Debugger::Lock
- Inherits:
-
Object
- Object
- Debugger::Lock
- Defined in:
- lib/ruby-debug/lock.rb
Instance Method Summary collapse
-
#initialize ⇒ Lock
constructor
A new instance of Lock.
- #lock ⇒ Object
- #locked? ⇒ Boolean
- #unlock ⇒ Object
Constructor Details
#initialize ⇒ Lock
Returns a new instance of Lock.
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# File 'lib/ruby-debug/lock.rb', line 3 def initialize @locker = nil @waiting = [] @locked = false; end |
Instance Method Details
#lock ⇒ Object
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# File 'lib/ruby-debug/lock.rb', line 13 def lock return if Thread.critical return if @locker == Thread.current while (Thread.critical = true; @locked) @waiting.push Thread.current Thread.stop end @locked = true @locker = Thread.current Thread.critical = false self end |
#locked? ⇒ Boolean
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# File 'lib/ruby-debug/lock.rb', line 9 def locked? @locked end |
#unlock ⇒ Object
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# File 'lib/ruby-debug/lock.rb', line 26 def unlock return if Thread.critical return unless @locked unless @locker == Thread.current raise RuntimeError, "unlocked by other" end Thread.critical = true t = @waiting.shift @locked = false @locker = nil Thread.critical = false t.run if t self end |