class Ro::Lock
Public Class Methods
new(path)
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# File lib/ro/lock.rb, line 3 def initialize(path) @path = path.to_s @fd = false end
Public Instance Methods
lock(&block)
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# File lib/ro/lock.rb, line 8 def lock(&block) open! if block begin lock! block.call ensure unlock! end else self end end
lock!()
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# File lib/ro/lock.rb, line 43 def lock! open! @fd.flock File::LOCK_EX end
open!()
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# File lib/ro/lock.rb, line 23 def open! @fd ||= ( fd = begin open(@path, 'ab+') rescue unless test(?e, @path) FileUtils.mkdir_p(@path) FileUtils.touch(@path) end open(@path, 'ab+') end fd.close_on_exec = true fd ) end
unlock!()
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# File lib/ro/lock.rb, line 48 def unlock! open! @fd.flock File::LOCK_UN end