Socket emergency

ruby-talk
1

Hi Guy and all Rubyists,

Thank you very much for all the help. For me, it is not very convenient to
use net/pop in this client application. However I also tried that one. The
result is failure. Please refer to the following code:

irb(main):001:0> require ‘net/pop’
=> true
irb(main):002:0> Net::POP3.start(‘127.0.0.1’, 110,
‘xrfang@172.18.2.1’,‘xrfang’) { |pop|
irb(main):003:1* if pop.mails.empty?
irb(main):004:2> puts ‘no mail.’
irb(main):005:2> else
irb(main):006:2* i=0
irb(main):007:2> pop.each_mail do |m|
irb(main):008:3* puts m.pop
irb(main):009:3> m.delete
irb(main):010:3> i += 1
irb(main):011:3> end
irb(main):012:2> puts “#{pop.mails.size} mails popped.”
irb(main):013:2> end
irb(main):014:1> }
TimeoutError: socket read timeout (60 sec)
from c:/ruby/lib/ruby/1.6/net/protocol.rb:618:in on_read_timeout' from c:/ruby/lib/ruby/1.6/net/protocol.rb:612:in rbuf_fill’
from c:/ruby/lib/ruby/1.6/net/protocol.rb:551:in readuntil' from c:/ruby/lib/ruby/1.6/net/protocol.rb:577:in read_pendstr’
from c:/ruby/lib/ruby/1.6/net/pop.rb:562:in retr' from c:/ruby/lib/ruby/1.6/net/pop.rb:561:in atomic’
from c:/ruby/lib/ruby/1.6/net/pop.rb:561:in retr' from c:/ruby/lib/ruby/1.6/net/pop.rb:481:in pop’
from (irb):8
from (irb):7:in each' from c:/ruby/lib/ruby/1.6/net/pop.rb:421:in each_mail’
from (irb):7
from (irb):2:in start' from c:/ruby/lib/ruby/1.6/net/protocol.rb:71:in start’
from c:/ruby/lib/ruby/1.6/net/protocol.rb:71:in `start’
from (irb):2
irb(main):015:0>

I don’t know what on earth is it doing :-((((

thanks!
Shannon

···

From: ts decoux@moulon.inra.fr
Reply-To: ruby-talk@ruby-lang.org
To: ruby-talk@ruby-lang.org (ruby-talk ML)
CC: ruby-talk@ruby-lang.org
Subject: Re: socket emergency
Date: Thu, 21 Aug 2003 00:03:45 +0900

It hangs here.

Have you tried with the module ‘net/pop’ to see if it do the same ?

=== Enshort Code

The example above is very verbose. You can enshort code by using
some utility methods. At first, block form of Net::POP3.start can
alternates POP3.new, POP3#start and POP3#finish.

require 'net/pop'

Net::POP3.start('pop.example.com', 110,
                'YourAccount', 'YourPassword') {|pop|
  if pop.mails.empty?
    puts 'no mail.'
  else
    i = 0
    pop.each_mail do |m|   # or "pop.mails.each ..."
      File.open("inbox/#{i}", 'w') {|f|
        f.write m.pop
      }
      m.delete
      i += 1
    end
    puts "#{pop.mails.size} mails popped."
  end
}

Guy Decoux

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