Add bin and edit workflow

bin/gems/concurrent-ruby-1.3.8/lib/concurrent-ruby/concurrent/utility/engine.rb

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+module Concurrent
+  # @!visibility private
+  module Utility
+
+    # @!visibility private
+    module EngineDetector
+      def on_cruby?
+        RUBY_ENGINE == 'ruby'
+      end
+
+      def on_jruby?
+        RUBY_ENGINE == 'jruby'
+      end
+
+      def on_truffleruby?
+        RUBY_ENGINE == 'truffleruby'
+      end
+
+      def on_windows?
+        !(RbConfig::CONFIG['host_os'] =~ /mswin|mingw|cygwin/).nil?
+      end
+
+      def on_osx?
+        !(RbConfig::CONFIG['host_os'] =~ /darwin|mac os/).nil?
+      end
+
+      def on_linux?
+        !(RbConfig::CONFIG['host_os'] =~ /linux/).nil?
+      end
+
+      def ruby_version(version = RUBY_VERSION, comparison, major, minor, patch)
+        result      = (version.split('.').map(&:to_i) <=> [major, minor, patch])
+        comparisons = { :== => [0],
+                        :>= => [1, 0],
+                        :<= => [-1, 0],
+                        :>  => [1],
+                        :<  => [-1] }
+        comparisons.fetch(comparison).include? result
+      end
+    end
+  end
+
+  # @!visibility private
+  extend Utility::EngineDetector
+end

bin/gems/concurrent-ruby-1.3.8/lib/concurrent-ruby/concurrent/utility/monotonic_time.rb

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+module Concurrent
+
+  # @!macro monotonic_get_time
+  #
+  #   Returns the current time as tracked by the application monotonic clock.
+  #
+  #   @param [Symbol] unit the time unit to be returned, can be either
+  #     :float_second, :float_millisecond, :float_microsecond, :second,
+  #     :millisecond, :microsecond, or :nanosecond default to :float_second.
+  #
+  #   @return [Float] The current monotonic time since some unspecified
+  #     starting point
+  #
+  #   @!macro monotonic_clock_warning
+  def monotonic_time(unit = :float_second)
+    Process.clock_gettime(Process::CLOCK_MONOTONIC, unit)
+  end
+  module_function :monotonic_time
+end

bin/gems/concurrent-ruby-1.3.8/lib/concurrent-ruby/concurrent/utility/native_extension_loader.rb

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+require 'concurrent/utility/engine'
+# Synchronization::AbstractObject must be defined before loading the extension
+require 'concurrent/synchronization/abstract_object'
+
+module Concurrent
+  # @!visibility private
+  module Utility
+    # @!visibility private
+    module NativeExtensionLoader
+
+      def allow_c_extensions?
+        Concurrent.on_cruby?
+      end
+
+      def c_extensions_loaded?
+        defined?(@c_extensions_loaded) && @c_extensions_loaded
+      end
+
+      def load_native_extensions
+        if Concurrent.on_cruby? && !c_extensions_loaded?
+          ['concurrent/concurrent_ruby_ext',
+           "concurrent/#{RUBY_VERSION[0..2]}/concurrent_ruby_ext"
+          ].each { |p| try_load_c_extension p }
+        end
+
+        if Concurrent.on_jruby? && !java_extensions_loaded?
+          begin
+            require 'concurrent/concurrent_ruby.jar'
+            set_java_extensions_loaded
+          rescue LoadError => e
+            raise e, "Java extensions are required for JRuby.\n" + e.message, e.backtrace
+          end
+        end
+      end
+
+      private
+
+      def load_error_path(error)
+        if error.respond_to? :path
+          error.path
+        else
+          error.message.split(' -- ').last
+        end
+      end
+
+      def set_c_extensions_loaded
+        @c_extensions_loaded = true
+      end
+
+      def java_extensions_loaded?
+        defined?(@java_extensions_loaded) && @java_extensions_loaded
+      end
+
+      def set_java_extensions_loaded
+        @java_extensions_loaded = true
+      end
+
+      def try_load_c_extension(path)
+        require path
+        set_c_extensions_loaded
+      rescue LoadError => e
+        if load_error_path(e) == path
+          # move on with pure-Ruby implementations
+          # TODO (pitr-ch 12-Jul-2018): warning on verbose?
+        else
+          raise e
+        end
+      end
+
+    end
+  end
+
+  # @!visibility private
+  extend Utility::NativeExtensionLoader
+end
+
+Concurrent.load_native_extensions

bin/gems/concurrent-ruby-1.3.8/lib/concurrent-ruby/concurrent/utility/native_integer.rb

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+module Concurrent
+  # @!visibility private
+  module Utility
+    # @private
+    module NativeInteger
+      # http://stackoverflow.com/questions/535721/ruby-max-integer
+      MIN_VALUE = -(2**(0.size * 8 - 2))
+      MAX_VALUE = (2**(0.size * 8 - 2) - 1)
+
+      def ensure_upper_bound(value)
+        if value > MAX_VALUE
+          raise RangeError.new("#{value} is greater than the maximum value of #{MAX_VALUE}")
+        end
+        value
+      end
+
+      def ensure_lower_bound(value)
+        if value < MIN_VALUE
+          raise RangeError.new("#{value} is less than the maximum value of #{MIN_VALUE}")
+        end
+        value
+      end
+
+      def ensure_integer(value)
+        unless value.is_a?(Integer)
+          raise ArgumentError.new("#{value} is not an Integer")
+        end
+        value
+      end
+
+      def ensure_integer_and_bounds(value)
+        ensure_integer value
+        ensure_upper_bound value
+        ensure_lower_bound value
+      end
+
+      def ensure_positive(value)
+        if value < 0
+          raise ArgumentError.new("#{value} cannot be negative")
+        end
+        value
+      end
+
+      def ensure_positive_and_no_zero(value)
+        if value < 1
+          raise ArgumentError.new("#{value} cannot be negative or zero")
+        end
+        value
+      end
+
+      extend self
+    end
+  end
+end

bin/gems/concurrent-ruby-1.3.8/lib/concurrent-ruby/concurrent/utility/processor_counter.rb

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+require 'etc'
+require 'rbconfig'
+require 'concurrent/delay'
+
+module Concurrent
+  # @!visibility private
+  module Utility
+
+    # @!visibility private
+    class ProcessorCounter
+      def initialize
+        @processor_count          = Delay.new { compute_processor_count }
+        @physical_processor_count = Delay.new { compute_physical_processor_count }
+        @cpu_quota                = Delay.new { compute_cpu_quota }
+        @cpu_shares               = Delay.new { compute_cpu_shares }
+      end
+
+      def processor_count
+        @processor_count.value
+      end
+
+      def physical_processor_count
+        @physical_processor_count.value
+      end
+
+      def available_processor_count
+        cpu_count = processor_count.to_f
+        quota = cpu_quota
+
+        return cpu_count if quota.nil?
+
+        # cgroup cpus quotas have no limits, so they can be set to higher than the
+        # real count of cores.
+        if quota > cpu_count
+          cpu_count
+        else
+          quota
+        end
+      end
+
+      def cpu_quota
+        @cpu_quota.value
+      end
+
+      def cpu_shares
+        @cpu_shares.value
+      end
+
+      private
+
+      def compute_processor_count
+        if Concurrent.on_jruby?
+          java.lang.Runtime.getRuntime.availableProcessors
+        else
+          Etc.nprocessors
+        end
+      end
+
+      def compute_physical_processor_count
+        ppc = case RbConfig::CONFIG["target_os"]
+              when /darwin\d\d/
+                IO.popen("/usr/sbin/sysctl -n hw.physicalcpu", &:read).to_i
+              when /linux/
+                cores = {} # unique physical ID / core ID combinations
+                phy   = 0
+                IO.read("/proc/cpuinfo").scan(/^physical id.*|^core id.*/) do |ln|
+                  if ln.start_with?("physical")
+                    phy = ln[/\d+/]
+                  elsif ln.start_with?("core")
+                    cid        = phy + ":" + ln[/\d+/]
+                    cores[cid] = true if not cores[cid]
+                  end
+                end
+                cores.count
+              when /mswin|mingw/
+                # Get-CimInstance introduced in PowerShell 3 or earlier: https://learn.microsoft.com/en-us/previous-versions/powershell/module/cimcmdlets/get-ciminstance?view=powershell-3.0
+                result = run('powershell -command "Get-CimInstance -ClassName Win32_Processor -Property NumberOfCores | Select-Object -Property NumberOfCores"')
+                if !result || $?.exitstatus != 0
+                  # fallback to deprecated wmic for older systems
+                  result = run("wmic cpu get NumberOfCores")
+                end
+                if !result || $?.exitstatus != 0
+                  # Bail out if both commands returned something unexpected
+                  processor_count
+                else
+                  # powershell: "\nNumberOfCores\n-------------\n            4\n\n\n"
+                  # wmic:       "NumberOfCores  \n\n4              \n\n\n\n"
+                  result.scan(/\d+/).map(&:to_i).reduce(:+)
+                end
+              else
+                processor_count
+              end
+        # fall back to logical count if physical info is invalid
+        ppc > 0 ? ppc : processor_count
+      rescue
+        return 1
+      end
+
+      def run(command)
+        IO.popen(command, &:read)
+      rescue Errno::ENOENT
+      end
+
+      def compute_cpu_quota
+        if RbConfig::CONFIG["target_os"].include?("linux")
+          if File.exist?("/sys/fs/cgroup/cpu.max")
+            # cgroups v2: https://docs.kernel.org/admin-guide/cgroup-v2.html#cpu-interface-files
+            cpu_max = File.read("/sys/fs/cgroup/cpu.max")
+            return nil if cpu_max.start_with?("max ") # no limit
+            max, period = cpu_max.split.map(&:to_f)
+            max / period
+          elsif File.exist?("/sys/fs/cgroup/cpu,cpuacct/cpu.cfs_quota_us")
+            # cgroups v1: https://kernel.googlesource.com/pub/scm/linux/kernel/git/glommer/memcg/+/cpu_stat/Documentation/cgroups/cpu.txt
+            max = File.read("/sys/fs/cgroup/cpu,cpuacct/cpu.cfs_quota_us").to_i
+            # If the cpu.cfs_quota_us is -1, cgroup does not adhere to any CPU time restrictions
+            # https://docs.kernel.org/scheduler/sched-bwc.html#management
+            return nil if max <= 0
+            period = File.read("/sys/fs/cgroup/cpu,cpuacct/cpu.cfs_period_us").to_f
+            max / period
+          end
+        end
+      end
+
+      def compute_cpu_shares
+        if RbConfig::CONFIG["target_os"].include?("linux")
+          if File.exist?("/sys/fs/cgroup/cpu.weight")
+            # cgroups v2: https://docs.kernel.org/admin-guide/cgroup-v2.html#cpu-interface-files
+            # Ref: https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/2254-cgroup-v2#phase-1-convert-from-cgroups-v1-settings-to-v2
+            weight = File.read("/sys/fs/cgroup/cpu.weight").to_f
+            ((((weight - 1) * 262142) / 9999) + 2) / 1024
+          elsif File.exist?("/sys/fs/cgroup/cpu/cpu.shares")
+            # cgroups v1: https://kernel.googlesource.com/pub/scm/linux/kernel/git/glommer/memcg/+/cpu_stat/Documentation/cgroups/cpu.txt
+            File.read("/sys/fs/cgroup/cpu/cpu.shares").to_f / 1024
+          end
+        end
+      end
+    end
+  end
+
+  # create the default ProcessorCounter on load
+  @processor_counter = Utility::ProcessorCounter.new
+  singleton_class.send :attr_reader, :processor_counter
+
+  # Number of processors seen by the OS and used for process scheduling. For
+  # performance reasons the calculated value will be memoized on the first
+  # call.
+  #
+  # When running under JRuby the Java runtime call
+  # `java.lang.Runtime.getRuntime.availableProcessors` will be used. According
+  # to the Java documentation this "value may change during a particular
+  # invocation of the virtual machine... [applications] should therefore
+  # occasionally poll this property." We still memoize this value once under
+  # JRuby.
+  #
+  # Otherwise Ruby's Etc.nprocessors will be used.
+  #
+  # @return [Integer] number of processors seen by the OS or Java runtime
+  #
+  # @see http://docs.oracle.com/javase/6/docs/api/java/lang/Runtime.html#availableProcessors()
+  def self.processor_count
+    processor_counter.processor_count
+  end
+
+  # Number of physical processor cores on the current system. For performance
+  # reasons the calculated value will be memoized on the first call.
+  #
+  # On Windows the Win32 API will be queried for the `NumberOfCores from
+  # Win32_Processor`. This will return the total number "of cores for the
+  # current instance of the processor." On Unix-like operating systems either
+  # the `hwprefs` or `sysctl` utility will be called in a subshell and the
+  # returned value will be used. In the rare case where none of these methods
+  # work or an exception is raised the function will simply return 1.
+  #
+  # @return [Integer] number physical processor cores on the current system
+  #
+  # @see https://github.com/grosser/parallel/blob/4fc8b89d08c7091fe0419ca8fba1ec3ce5a8d185/lib/parallel.rb
+  #
+  # @see http://msdn.microsoft.com/en-us/library/aa394373(v=vs.85).aspx
+  # @see http://www.unix.com/man-page/osx/1/HWPREFS/
+  # @see http://linux.die.net/man/8/sysctl
+  def self.physical_processor_count
+    processor_counter.physical_processor_count
+  end
+
+  # Number of processors cores available for process scheduling.
+  # This method takes in account the CPU quota if the process is inside a cgroup with a
+  # dedicated CPU quota (typically Docker).
+  # Otherwise it returns the same value as #processor_count but as a Float.
+  #
+  # For performance reasons the calculated value will be memoized on the first
+  # call.
+  #
+  # @return [Float] number of available processors
+  def self.available_processor_count
+    processor_counter.available_processor_count
+  end
+
+  # The maximum number of processors cores available for process scheduling.
+  # Returns `nil` if there is no enforced limit, or a `Float` if the
+  # process is inside a cgroup with a dedicated CPU quota (typically Docker).
+  #
+  # Note that nothing prevents setting a CPU quota higher than the actual number of
+  # cores on the system.
+  #
+  # For performance reasons the calculated value will be memoized on the first
+  # call.
+  #
+  # @return [nil, Float] Maximum number of available processors as set by a cgroup CPU quota, or nil if none set
+  def self.cpu_quota
+    processor_counter.cpu_quota
+  end
+
+  # The CPU shares requested by the process. For performance reasons the calculated
+  # value will be memoized on the first call.
+  #
+  # @return [Float, nil] CPU shares requested by the process, or nil if not set
+  def self.cpu_shares
+    processor_counter.cpu_shares
+  end
+end