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author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
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committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/sample/drb/dbiff.rb |
Fresh start
Diffstat (limited to 'jni/ruby/sample/drb/dbiff.rb')
-rw-r--r-- | jni/ruby/sample/drb/dbiff.rb | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/jni/ruby/sample/drb/dbiff.rb b/jni/ruby/sample/drb/dbiff.rb new file mode 100644 index 0000000..290eb1d --- /dev/null +++ b/jni/ruby/sample/drb/dbiff.rb @@ -0,0 +1,51 @@ +# +# dbiff.rb - distributed cdbiff (server) +# * original: cdbiff by Satoru Takabayashi <http://namazu.org/~satoru/cdbiff> + +require 'drb/drb' +require 'drb/eq' +require 'drb/observer' + +class Biff + include DRb::DRbObservable + + def initialize(filename, interval) + super() + @filename = filename + @interval = interval + end + + def run + last = Time.now + while true + begin + sleep(@interval) + current = File::mtime(@filename) + if current > last + changed + begin + notify_observers(@filename, current) + rescue Error + end + last = current + end + rescue + next + end + end + end +end + +def main + filename = "/var/mail/#{ENV['USER']}" + interval = 15 + uri = 'druby://:19903' + + biff = Biff.new(filename, interval) + + DRb.start_service(uri, biff) + biff.run +end + +main + |