1 # -*- encoding: binary -*-
4 class Rainbows::HttpServer < Unicorn::HttpServer
5 attr_accessor :copy_stream
6 attr_accessor :worker_connections
7 attr_accessor :keepalive_timeout
8 attr_accessor :client_header_buffer_size
9 attr_accessor :client_max_body_size
13 Rainbows.server.instance_eval(&block)
16 def initialize(app, options)
17 Rainbows.server = self
18 @logger = Unicorn::Configurator::DEFAULTS[:logger]
20 defined?(@use) or self.use = Rainbows::Base
21 @worker_connections ||= @use == :Base ? 1 : 50
24 def reopen_worker_logs(worker_nr)
25 logger.info "worker=#{worker_nr} reopening logs..."
26 Unicorn::Util.reopen_logs
27 logger.info "worker=#{worker_nr} done reopening logs"
29 Rainbows.quit! # let the master reopen and refork us
32 # Add one second to the timeout since our fchmod heartbeat is less
33 # precise (and must be more conservative) than Unicorn does. We
34 # handle many clients per process and can't chmod on every
35 # connection we accept without wasting cycles. That added to the
36 # fact that we let clients keep idle connections open for long
37 # periods of time means we have to chmod at a fixed interval.
44 @worker_connections = 1 if @use == :Base
47 def worker_loop(worker)
48 Rainbows.forked = true
49 orig = method(:worker_loop)
50 extend(Rainbows.const_get(@use))
51 m = method(:worker_loop)
52 orig == m ? super(worker) : worker_loop(worker)
55 def spawn_missing_workers
56 # 5: std{in,out,err} + heartbeat FD + per-process listener
57 nofile = 5 + @worker_connections + LISTENERS.size
58 trysetrlimit(:RLIMIT_NOFILE, nofile)
61 when :ThreadSpawn, :ThreadPool, :ActorSpawn,
62 :CoolioThreadSpawn, :RevThreadSpawn,
63 :XEpollThreadSpawn, :WriterThreadPool, :WriterThreadSpawn
64 trysetrlimit(:RLIMIT_NPROC, @worker_connections + LISTENERS.size + 1)
65 when :XEpollThreadPool, :CoolioThreadPool
66 trysetrlimit(:RLIMIT_NPROC, Rainbows::O[:pool_size] + LISTENERS.size + 1)
71 def trysetrlimit(resource, want)
72 var = Process.const_get(resource)
73 cur, max = Process.getrlimit(var)
74 cur <= want and Process.setrlimit(var, cur = max > want ? max : want)
76 @logger.warn "#{resource} rlim_cur=#{cur} is barely enough"
77 @logger.warn "#{svc} may monopolize resources dictated by #{resource}" \
78 " and leave none for your app"
81 @logger.error e.message
82 @logger.error "#{resource} needs to be increased to >=#{want} before" \
91 @use = mod.to_s.split(/::/)[-1].to_sym
93 'rainbows.model' => @use,
94 'rack.multithread' => !!(mod.to_s =~ /Thread/),
95 'rainbows.autochunk' => [:Coolio,:Rev,:Epoll,:XEpoll,
96 :EventMachine,:NeverBlock].include?(@use),
98 Rainbows::Const::RACK_DEFAULTS.update(new_defaults)
101 def keepalive_requests=(nr)
102 Unicorn::HttpRequest.keepalive_requests = nr
105 def keepalive_requests
106 Unicorn::HttpRequest.keepalive_requests