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| | # Copyright (C) 2013-2019 all contributors <dtas-all@nongnu.org>
# License: GPL-3.0+ <https://www.gnu.org/licenses/gpl-3.0.txt>
# frozen_string_literal: true
# DTAS currently exposes no public API for Ruby programmers.
# See https://80x24.org/dtas.git/about/ for more info.
module DTAS
# try to use the monotonic clock in Ruby >= 2.1, it is immune to clock
# offset adjustments and generates less garbage (Float vs Time object)
# :stopdoc:
begin
::Process.clock_gettime(::Process::CLOCK_MONOTONIC)
def self.now # :nodoc:
::Process.clock_gettime(::Process::CLOCK_MONOTONIC)
end
rescue NameError, NoMethodError
def self.now # :nodoc:
Time.now.to_f # Ruby <= 2.0
end
end
@null = nil
def self.null # :nodoc:
@null ||= File.open('/dev/null', 'r+')
end
@libc = nil
def self.libc
@libc ||= begin
require 'fiddle'
Fiddle.dlopen(nil)
end
end
# String#-@ will deduplicate strings when Ruby 2.5 is released (Dec 2017)
# https://bugs.ruby-lang.org/issues/13077
if RUBY_VERSION.to_f >= 2.5
def self.dedupe_str(str)
-str
end
else
# Ruby 2.1 - 2.4, noop for older Rubies
def self.dedupe_str(str)
eval "#{str.inspect}.freeze"
end
end
# :startdoc:
end
require_relative 'dtas/compat_onenine'
require_relative 'dtas/spawn_fix'
require_relative 'dtas/encoding'
DTAS.extend(DTAS::Encoding)
|