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# <!-- rdoc-file=lib/timeout.rb -->
# 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
# <!--
# rdoc-file=lib/timeout.rb
# - timeout(sec, klass = nil, message = nil) { |sec| ... }
# -->
# 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
# `message`
# : Error message to raise with Exception Class. Omitting will use the
# default, "execution expired"
#
#
# 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. However, the block can use ensure to
# prevent the handling of the exception. For that reason, this method cannot be
# relied on to enforce timeouts for untrusted blocks.
#
# If a scheduler is defined, it will be used to handle the timeout by invoking
# Scheduler#timeout_after.
#
# 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 self?.timeout: [T] (Numeric? sec, ?singleton(Exception) klass, ?String message) { (Numeric sec) -> T } -> T
end
# <!-- rdoc-file=lib/timeout.rb -->
# Raised by Timeout.timeout when the block times out.
#
class Timeout::Error < RuntimeError
attr_reader thread: Thread?
end
Timeout::VERSION: String
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