diff options
Diffstat (limited to 'ruby_2_2/lib/timeout.rb')
| -rw-r--r-- | ruby_2_2/lib/timeout.rb | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/ruby_2_2/lib/timeout.rb b/ruby_2_2/lib/timeout.rb deleted file mode 100644 index 123f600ccb..0000000000 --- a/ruby_2_2/lib/timeout.rb +++ /dev/null @@ -1,129 +0,0 @@ -# Timeout long-running blocks -# -# == Synopsis -# -# require 'timeout' -# status = Timeout::timeout(5) { -# # Something that should be interrupted if it takes more than 5 seconds... -# } -# -# == Description -# -# Timeout provides a way to auto-terminate a potentially long-running -# operation if it hasn't finished in a fixed amount of time. -# -# Previous versions didn't use a module for namespacing, however -# #timeout is provided for backwards compatibility. You -# should prefer Timeout#timeout instead. -# -# == Copyright -# -# Copyright:: (C) 2000 Network Applied Communication Laboratory, Inc. -# Copyright:: (C) 2000 Information-technology Promotion Agency, Japan - -module Timeout - # Raised by Timeout#timeout when the block times out. - class Error < RuntimeError - attr_reader :thread - - def self.catch(*args) - exc = new(*args) - exc.instance_variable_set(:@thread, Thread.current) - ::Kernel.catch(exc) {yield exc} - end - - def exception(*) - # TODO: use Fiber.current to see if self can be thrown - if self.thread == Thread.current - bt = caller - begin - throw(self, bt) - rescue UncaughtThrowError - end - end - self - end - end - ExitException = Error - - # :stopdoc: - THIS_FILE = /\A#{Regexp.quote(__FILE__)}:/o - CALLER_OFFSET = ((c = caller[0]) && THIS_FILE =~ c) ? 1 : 0 - # :startdoc: - - # Perform an operation in a block, raising an error if it takes longer than - # +sec+ seconds to complete. - # - # +sec+:: Number of seconds to wait for the block to terminate. Any number - # may be used, including Floats to specify fractional seconds. A - # value of 0 or +nil+ will execute the block without any timeout. - # +klass+:: Exception Class to raise if the block fails to terminate - # in +sec+ seconds. Omitting will use the default, Timeout::Error - # - # Returns the result of the block *if* the block completed before - # +sec+ seconds, otherwise throws an exception, based on the value of +klass+. - # - # The exception thrown to terminate the given block cannot be rescued inside - # the block unless +klass+ is given explicitly. - # - # Note that this is both a method of module Timeout, so you can <tt>include - # Timeout</tt> into your classes so they have a #timeout method, as well as - # a module method, so you can call it directly as Timeout.timeout(). - def timeout(sec, klass = nil) #:yield: +sec+ - return yield(sec) if sec == nil or sec.zero? - message = "execution expired" - e = Error - bl = proc do |exception| - begin - x = Thread.current - y = Thread.start { - begin - sleep sec - rescue => e - x.raise e - else - x.raise exception, message - end - } - return yield(sec) - ensure - if y - y.kill - y.join # make sure y is dead. - end - end - end - if klass - begin - bl.call(klass) - rescue klass => e - bt = e.backtrace - end - else - bt = Error.catch(message, &bl) - end - rej = /\A#{Regexp.quote(__FILE__)}:#{__LINE__-4}\z/o - bt.reject! {|m| rej =~ m} - level = -caller(CALLER_OFFSET).size - while THIS_FILE =~ bt[level] - bt.delete_at(level) - end - raise(e, message, bt) - end - - module_function :timeout -end - -# Identical to: -# -# Timeout::timeout(n, e, &block). -# -# This method is deprecated and provided only for backwards compatibility. -# You should use Timeout#timeout instead. -def timeout(n, e = nil, &block) - Timeout::timeout(n, e, &block) -end - -# Another name for Timeout::Error, defined for backwards compatibility with -# earlier versions of timeout.rb. -TimeoutError = Timeout::Error |