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puma--puma/lib/puma/single.rb
Will Jordan fdb936d2ae
Server run thread safety fix [changelog skip] (#2435)
* Add server run/stop thread safety test

* Fix race condition in Server#run notify pipe creation

* Update 'Ctrl-C' log message timing
Log after `server.run` in Single mode since
some integration tests use this message for timing stop signals.
2020-10-20 07:26:16 -06:00

67 lines
1.4 KiB
Ruby

# frozen_string_literal: true
require 'puma/runner'
require 'puma/detect'
require 'puma/plugin'
module Puma
# This class is instantiated by the `Puma::Launcher` and used
# to boot and serve a Ruby application when no puma "workers" are needed
# i.e. only using "threaded" mode. For example `$ puma -t 1:5`
#
# At the core of this class is running an instance of `Puma::Server` which
# gets created via the `start_server` method from the `Puma::Runner` class
# that this inherits from.
class Single < Runner
# @!attribute [r] stats
def stats
{
started_at: @started_at.utc.iso8601
}.merge(@server.stats)
end
def restart
@server.begin_restart
end
def stop
@server.stop(false) if @server
end
def halt
@server.halt
end
def stop_blocked
log "- Gracefully stopping, waiting for requests to finish"
@control.stop(true) if @control
@server.stop(true) if @server
end
def run
output_header "single"
load_and_bind
Plugins.fire_background
@launcher.write_state
start_control
@server = server = start_server
server_thread = server.run
log "Use Ctrl-C to stop"
redirect_io
@launcher.events.fire_on_booted!
begin
server_thread.join
rescue Interrupt
# Swallow it
end
end
end
end