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* Merge YARV

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11439 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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ko1 2006-12-31 15:02:22 +00:00
parent 3e7566d8fb
commit a3e1b1ce7e
233 changed files with 46004 additions and 13653 deletions
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55
lib/timeout.rb
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@ -1,24 +1,7 @@
#--
# = timeout.rb
#
# execution timeout
#
# = Copyright
#
# Copyright:: (C) 2000 Network Applied Communication Laboratory, Inc.
# Copyright:: (C) 2000 Information-technology Promotion Agency, Japan
#
#++
#
# = Description
#
# A way of performing a potentially long-running operation in a thread, and
# terminating it's execution if it hasn't finished within fixed amount of
# time.
#
# Previous versions of timeout didn't use a module for namespace. This version
# provides both Timeout.timeout, and a backwards-compatible #timeout.
#
# = Synopsis
#
# require 'timeout'
@ -26,27 +9,33 @@
# # Something that should be interrupted if it takes too much time...
# }
#
# = Description
#
# A way of performing a potentially long-running operation in a thread, and terminating
# it's execution if it hasn't finished by a fixed amount of time.
#
# Previous versions of timeout didn't provide use a module for namespace. This version
# provides both Timeout.timeout, and a backwards-compatible #timeout.
#
# = 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<Interrupt
class Error < Interrupt
end
##
# Executes the method's block. If the block execution terminates before +sec+
# seconds has passed, it returns true. If not, it terminates the execution
# and raises +exception+ (which defaults to Timeout::Error).
#
# Note that this is both a method of module Timeout, so you can 'include
# Timeout' into your classes so they have a #timeout method, as well as a
# module method, so you can call it directly as Timeout.timeout().
# Note that this is both a method of module Timeout, so you can 'include Timeout'
# 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, exception=Error)
return yield if sec == nil or sec.zero?
raise ThreadError, "timeout within critical session" if Thread.critical
begin
x = Thread.current
y = Thread.start {
@ -54,33 +43,28 @@ module Timeout
x.raise exception, "execution expired" if x.alive?
}
yield sec
# return true
return true
ensure
y.kill if y and y.alive?
end
end
module_function :timeout
end
##
# Identical to:
#
# Timeout::timeout(n, e, &block).
#
# Defined for backwards compatibility with earlier versions of timeout.rb, see
# Timeout#timeout.
def timeout(n, e=Timeout::Error, &block) # :nodoc:
def timeout(n, e = Timeout::Error, &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 # :nodoc:
TimeoutError = Timeout::Error
if __FILE__ == $0
p timeout(5) {
@ -102,4 +86,3 @@ if __FILE__ == $0
}
}
end