module IO::WaitReadable
module OpenSSL
module OpenSSL::SSL
module Puma
module Puma::App
module Puma::ConfigDefault
module Puma::Const
module Puma::JRubyRestart
module Puma::MiniSSL
module Puma::Rack
module Puma::Util
module Rack
module Rack::Handler
module Rack::Handler::Puma
class IO
class OpenSSL::SSL::SSLServer
class Puma::App::Status
class Puma::Binder
class Puma::CLI
class Puma::Client
class Puma::Cluster
class Puma::Cluster::Worker
class Puma::CommonLogger
class Puma::Configuration
class Puma::Configuration::ConfigMiddleware
class Puma::ConnectionError
class Puma::ControlCLI
class Puma::DSL
class Puma::Events
class Puma::Events::DefaultFormatter
class Puma::Events::PidFormatter
class Puma::Launcher
class Puma::MiniSSL::Context
class Puma::MiniSSL::ContextBuilder
class Puma::MiniSSL::SSLError
class Puma::MiniSSL::Server
class Puma::MiniSSL::Socket
class Puma::NullIO
class Puma::Plugin
class Puma::PluginLoader
class Puma::PluginRegistry
class Puma::Rack::Builder
class Puma::Rack::Options
class Puma::Rack::URLMap
class Puma::Reactor
class Puma::Runner
class Puma::Server
class Puma::Single
class Puma::StateFile
class Puma::TCPLogger
class Puma::ThreadPool
class Puma::ThreadPool::Automaton
class Puma::ThreadPool::ForceShutdown
class Puma::UnknownPlugin
class Puma::UnsupportedOption
class Puma::UserFileDefaultOptions
class Puma::Util::HeaderHash
puma
4.3.8
# running
def running @thread_pool and @thread_pool.spawned end