class Selenium::WebDriver::SocketLock
@api private
Public Class Methods
new(port, timeout)
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# File lib/selenium/webdriver/common/socket_lock.rb, line 27 def initialize(port, timeout) @port = port @timeout = timeout end
Public Instance Methods
locked() { || ... }
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Attempt to acquire a lock on the given port. Control is yielded to an execution block if the lock could be successfully obtained.
# File lib/selenium/webdriver/common/socket_lock.rb, line 37 def locked lock begin yield ensure release end end
Private Instance Methods
can_lock?()
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# File lib/selenium/webdriver/common/socket_lock.rb, line 67 def can_lock? @server = TCPServer.new(Platform.localhost, @port) ChildProcess.close_on_exec @server true rescue SocketError, Errno::EADDRINUSE, Errno::EBADF => ex WebDriver.logger.debug("#{self}: #{ex.message}") false end
current_time()
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# File lib/selenium/webdriver/common/socket_lock.rb, line 59 def current_time Process.clock_gettime(Process::CLOCK_MONOTONIC) end
did_lock?()
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# File lib/selenium/webdriver/common/socket_lock.rb, line 77 def did_lock? !@server.nil? end
lock()
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# File lib/selenium/webdriver/common/socket_lock.rb, line 49 def lock max_time = current_time + @timeout sleep 0.1 until can_lock? || current_time >= max_time return if did_lock? raise Error::WebDriverError, "unable to bind to locking port #{@port} within #{@timeout} seconds" end
release()
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# File lib/selenium/webdriver/common/socket_lock.rb, line 63 def release @server&.close end