Class: Mutex

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# File 'opal/stdlib/thread.rb', line 146
def initialize
 # We still keep the @locked state so any logic based on try_lock while
 # held yields reasonable results.
 @locked = false
end

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# File 'opal/stdlib/thread.rb', line 152
def lock
 raise ThreadError , 'Deadlock' if @locked
 @locked = true
 self
end

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# File 'opal/stdlib/thread.rb', line 158
def locked?
 @locked
end

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# File 'opal/stdlib/thread.rb', line 162
def owned?
 # Being the only "thread", we implicitly own any locked mutex.
 @locked
end

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# File 'opal/stdlib/thread.rb', line 182
def synchronize
 lock
 begin
 yield
 ensure
 unlock
 end
end

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# File 'opal/stdlib/thread.rb', line 167
def try_lock
 if locked?
 false
 else
 lock
 true
 end
end

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# File 'opal/stdlib/thread.rb', line 176
def unlock
 raise ThreadError , 'Mutex not locked' unless @locked
 @locked = false
 self
end