32 lines
663 B
Ruby
32 lines
663 B
Ruby
class Mutex
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# call-seq:
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# mutex.synchronize { ... }
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#
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# Obtains a lock, runs the block, and releases the lock when the
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# block completes. See the example under Mutex.
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def synchronize
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self.lock
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begin
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yield
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ensure
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self.unlock rescue nil
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end
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end
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end
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class Thread
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MUTEX_FOR_THREAD_EXCLUSIVE = Mutex.new # :nodoc:
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# call-seq:
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# Thread.exclusive { block } => obj
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#
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# Wraps a block in Thread.critical, restoring the original value
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# upon exit from the critical section, and returns the value of the
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# block.
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def self.exclusive
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MUTEX_FOR_THREAD_EXCLUSIVE.synchronize{
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yield
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}
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end
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end
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