1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
| | # -*- encoding: binary -*-
require 'thread'
# Spawns a new thread for every client connection we accept(). This
# model is recommended for platforms like Ruby 1.8 where spawning new
# threads is inexpensive.
#
# This model should provide a high level of compatibility with all
# Ruby implementations, and most libraries and applications.
# Applications running under this model should be thread-safe
# but not necessarily reentrant.
#
# If you're connecting to external services and need to perform DNS
# lookups, consider using the "resolv-replace" library which replaces
# parts of the core Socket package with concurrent DNS lookup
# capabilities
module Rainbows::ThreadSpawn
include Rainbows::Base
include Rainbows::WorkerYield
def accept_loop(klass) #:nodoc:
lock = Mutex.new
limit = worker_connections
nr = 0
LISTENERS.each do |l|
klass.new(l) do |l|
begin
if lock.synchronize { nr >= limit }
worker_yield
elsif c = l.kgio_accept
klass.new(c) do |c|
begin
lock.synchronize { nr += 1 }
c.process_loop
ensure
lock.synchronize { nr -= 1 }
end
end
end
rescue => e
Rainbows::Error.listen_loop(e)
end while Rainbows.alive
end
end
sleep 1 while Rainbows.tick || lock.synchronize { nr > 0 }
end
def worker_loop(worker) #:nodoc:
init_worker_process(worker)
accept_loop(Thread)
end
end
|