initial - epoll support working

author: Eric Wong <normalperson@yhbt.net> 2010-08-21 08:44:08 +0000
committer: Eric Wong <normalperson@yhbt.net> 2010-08-21 08:55:56 +0000
commit: 133a7dad4b2179093e5bbb7db6db6c31a51817b7 (patch)
tree: ed4557c41bbf6f9732f190ee47191904e9082cd2
download: sleepy_penguin-133a7dad4b2179093e5bbb7db6db6c31a51817b7.tar.gz
15 files changed, 2984 insertions, 0 deletions
diff --git a/.document b/.document
new file mode 100644
index 0000000..b47f875
--- /dev/null
+++ b/.document
@@ -0,0 +1,7 @@
+LICENSE
+README
+TODO
+NEWS
+ChangeLog
+lib
+ext/sleepy_penguin/epoll.c
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..88d1bfe
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,20 @@
+/local.mk
+*.o
+*.log
+*.so
+*.rbc
+/.config
+/InstalledFiles
+/doc
+/local.mk
+/test/install-*
+Makefile
+log/
+pkg/
+/NEWS
+/ChangeLog
+/.manifest
+/GIT-VERSION-FILE
+/man
+tags
+TAGS
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..cca7fc2
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
new file mode 100755
index 0000000..88b943a
--- /dev/null
+++ b/GIT-VERSION-GEN
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+GVF=GIT-VERSION-FILE
+DEF_VER=v1.0.0.GIT
+
+LF='
+'
+
+# First see if there is a version file (included in release tarballs),
+# then try git-describe, then default.
+if test -f version
+then
+        VN=$(cat version) || VN="$DEF_VER"
+elif test -d .git -o -f .git &&
+        VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
+        case "$VN" in
+        *$LF*) (exit 1) ;;
+        v[0-9]*)
+                git update-index -q --refresh
+                test -z "$(git diff-index --name-only HEAD --)" ||
+                VN="$VN-dirty" ;;
+        esac
+then
+        VN=$(echo "$VN" | sed -e 's/-/./g');
+else
+        VN="$DEF_VER"
+fi
+
+VN=$(expr "$VN" : v*'\(.*\)')
+
+if test -r $GVF
+then
+        VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)
+else
+        VC=unset
+fi
+test "$VN" = "$VC" || {
+        echo >&2 "GIT_VERSION = $VN"
+        echo "GIT_VERSION = $VN" >$GVF
+}
diff --git a/GNUmakefile b/GNUmakefile
new file mode 100644
index 0000000..dd6f8a9
--- /dev/null
+++ b/GNUmakefile
@@ -0,0 +1,190 @@
+# use GNU Make to run tests in parallel, and without depending on RubyGems
+all::
+RUBY = ruby
+RAKE = rake
+RSYNC = rsync
+GIT_URL = git://git.bogomips.org/sleepy_penguin.git
+
+GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
+        @./GIT-VERSION-GEN
+-include GIT-VERSION-FILE
+-include local.mk
+ifeq ($(DLEXT),) # "so" for Linux
+  DLEXT := $(shell $(RUBY) -rrbconfig -e 'puts Config::CONFIG["DLEXT"]')
+endif
+ifeq ($(RUBY_VERSION),)
+  RUBY_VERSION := $(shell $(RUBY) -e 'puts RUBY_VERSION')
+endif
+
+install:
+        $(prep_setup_rb)
+        $(RM) -r .install-tmp
+        mkdir .install-tmp
+        $(RUBY) setup.rb all
+        $(RM) $^
+        $(RM) -r .install-tmp
+        $(prep_setup_rb)
+
+setup_rb_files := .config InstalledFiles
+prep_setup_rb := @-$(RM) $(setup_rb_files);$(MAKE) -C $(ext) clean
+
+clean:
+        -$(MAKE) -C ext/sleepy_penguin clean
+        $(RM) $(setup_rb_files) ext/sleepy_penguin/Makefile
+
+pkg_extra := GIT-VERSION-FILE NEWS ChangeLog
+manifest: $(pkg_extra)
+        $(RM) .manifest
+        $(MAKE) .manifest
+
+.manifest:
+        (git ls-files && \
+         for i in $@ $(pkg_extra); \
+         do echo $$i; done) | LC_ALL=C sort > $@+
+        cmp $@+ $@ || mv $@+ $@
+        $(RM) $@+
+
+NEWS: GIT-VERSION-FILE
+        $(RAKE) -s news_rdoc > $@+
+        mv $@+ $@
+
+latest: NEWS
+        @awk 'BEGIN{RS="=== ";ORS=""}NR==2{sub(/\n$$/,"");print RS""$$0 }' $<
+
+SINCE =
+ChangeLog: LOG_VERSION = \
+  $(shell git rev-parse -q "$(GIT_VERSION)" >/dev/null 2>&1 && \
+          echo $(GIT_VERSION) || git describe)
+ifneq ($(SINCE),)
+ChangeLog: log_range = v$(SINCE)..$(LOG_VERSION)
+endif
+ChangeLog: GIT-VERSION-FILE
+        @echo "ChangeLog from $(GIT_URL) ($(log_range))" > $@+
+        @echo >> $@+
+        git log $(log_range) | sed -e 's/^/    /' >> $@+
+        mv $@+ $@
+
+news_atom := http://bogomips.org/sleepy_penguin/NEWS.atom.xml
+cgit_atom := http://git.bogomips.org/cgit/sleepy_penguin.git/atom/?h=master
+atom = <link rel="alternate" title="Atom feed" href="$(1)" \
+             type="application/atom+xml"/>
+
+# using rdoc 2.5.x
+doc: .document NEWS ChangeLog
+        rdoc -t "$(shell sed -ne '1s/^= //p' README)"
+        install -m644 COPYING doc/COPYING
+        install -m644 $(shell grep '^[A-Z]' .document) doc/
+        $(RUBY) -i -p -e \
+          '$$_.gsub!("</title>",%q{\&$(call atom,$(cgit_atom))})' \
+          doc/ChangeLog.html
+        $(RUBY) -i -p -e \
+          '$$_.gsub!("</title>",%q{\&$(call atom,$(news_atom))})' \
+          doc/NEWS.html doc/README.html
+        $(RAKE) -s news_atom > doc/NEWS.atom.xml
+        cd doc && ln README.html tmp && mv tmp index.html
+
+ifneq ($(VERSION),)
+rfproject := rainbows
+rfpackage := sleepy_penguin
+pkggem := pkg/$(rfpackage)-$(VERSION).gem
+pkgtgz := pkg/$(rfpackage)-$(VERSION).tgz
+release_notes := release_notes-$(VERSION)
+release_changes := release_changes-$(VERSION)
+
+release-notes: $(release_notes)
+release-changes: $(release_changes)
+$(release_changes):
+        $(RAKE) -s release_changes > $@+
+        $(VISUAL) $@+ && test -s $@+ && mv $@+ $@
+$(release_notes):
+        GIT_URL=$(GIT_URL) $(RAKE) -s release_notes > $@+
+        $(VISUAL) $@+ && test -s $@+ && mv $@+ $@
+
+# ensures we're actually on the tagged $(VERSION), only used for release
+verify:
+        test x"$(shell umask)" = x0022
+        git rev-parse --verify refs/tags/v$(VERSION)^{}
+        git diff-index --quiet HEAD^0
+        test `git rev-parse --verify HEAD^0` = \
+             `git rev-parse --verify refs/tags/v$(VERSION)^{}`
+
+fix-perms:
+        -git ls-tree -r HEAD | awk '/^100644 / {print $$NF}' | xargs chmod 644
+        -git ls-tree -r HEAD | awk '/^100755 / {print $$NF}' | xargs chmod 755
+
+gem: $(pkggem)
+
+install-gem: $(pkggem)
+        gem install $(CURDIR)/$<
+
+$(pkggem): manifest fix-perms
+        gem build $(rfpackage).gemspec
+        mkdir -p pkg
+        mv $(@F) $@
+
+$(pkgtgz): distdir = $(basename $@)
+$(pkgtgz): HEAD = v$(VERSION)
+$(pkgtgz): manifest fix-perms
+        @test -n "$(distdir)"
+        $(RM) -r $(distdir)
+        mkdir -p $(distdir)
+        tar c `cat .manifest` | (cd $(distdir) && tar x)
+        cd pkg && tar c $(basename $(@F)) | gzip -9 > $(@F)+
+        mv $@+ $@
+
+package: $(pkgtgz) $(pkggem)
+
+test-release: verify package $(release_notes) $(release_changes)
+release: verify package $(release_notes) $(release_changes)
+        # make tgz release on RubyForge
+        rubyforge add_release -f -n $(release_notes) -a $(release_changes) \
+          $(rfproject) $(rfpackage) $(VERSION) $(pkgtgz)
+        # push gem to Gemcutter
+        gem push $(pkggem)
+        # in case of gem downloads from RubyForge releases page
+        -rubyforge add_file \
+          $(rfproject) $(rfpackage) $(VERSION) $(pkggem)
+else
+gem install-gem: GIT-VERSION-FILE
+        $(MAKE) $@ VERSION=$(GIT_VERSION)
+endif
+
+extdir := ext/sleepy_penguin
+ext := $(extdir)/sleepy_penguin_ext.$(DLEXT)
+$(extdir)/Makefile: $(extdir)/extconf.rb
+        cd $(@D) && $(RUBY) extconf.rb
+
+$(ext): $(wildcard $(extdir)/*.c) $(wildcard $(extdir)/*.h) $(extdir)/Makefile
+        $(MAKE) -C $(@D)
+
+all:: test
+
+build: $(ext)
+test_units := $(wildcard test/test_*.rb)
+test: test-unit
+test-unit: $(test_units)
+$(test_units): build
+        $(RUBY) -I lib:$(extdir) $@
+
+# this requires GNU coreutils variants
+publish_doc:
+        -git set-file-times
+        $(RM) -r doc ChangeLog NEWS
+        $(MAKE) doc LOG_VERSION=$(shell git tag -l | tail -1)
+        $(MAKE) -s latest > doc/LATEST
+        find doc/images doc/js -type f | \
+                TZ=UTC xargs touch -d '1970-01-01 00:00:00' doc/rdoc.css
+        $(MAKE) doc_gz
+        chmod 644 $$(find doc -type f)
+        $(RSYNC) -av doc/ bogomips.org:/srv/bogomips/sleepy_penguin/
+        git ls-files | xargs touch
+
+# Create gzip variants of the same timestamp as the original so nginx
+# "gzip_static on" can serve the gzipped versions directly.
+doc_gz: docs = $(shell find doc -type f ! -regex '^.*\.\(gif\|jpg\|png\|gz\)$$')
+doc_gz:
+        touch doc/NEWS.atom.xml -d "$$(awk 'NR==1{print $$4,$$5,$$6}' NEWS)"
+        for i in $(docs); do \
+          gzip --rsyncable -9 < $$i > $$i.gz; touch -r $$i $$i.gz; done
+
+.PHONY: .FORCE-GIT-VERSION-FILE doc manifest man test $(test_units)
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..6e1e183
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,18 @@
+ruby_epoll is copyrighted Free Software by all contributors, see logs in
+revision control for names and email addresses of all of them.
+
+You can redistribute it and/or modify it under the terms of the GNU
+Lesser General Public License (LGPL) as published by the Free Software
+Foundation, version {2.1}[http://www.gnu.org/licenses/lgpl-2.1.txt] or
+or {3}[http://www.gnu.org/licenses/lgpl-3.0.txt] (see link:COPYING).
+The project leader (Eric Wong) reserves the right to relicense raindrops
+under future versions of the LGPL.
+
+ruby_epoll is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
diff --git a/README b/README
new file mode 100644
index 0000000..1f0f278
--- /dev/null
+++ b/README
@@ -0,0 +1,55 @@
+= sleepy_penguin - event extensions for Linux
+
+sleepy_penguin provides access to newer, Linux-only system calls to wait
+on events from traditionally non-I/O sources.  Bindings to the eventfd,
+signalfd, timerfd, and epoll interfaces are provided.
+
+== Features
+
+* Thread-safe blocking operations under both Ruby 1.8 and 1.9.
+
+* IO-like objects are backwards-compatible with IO.select.
+
+== Install
+
+If you're using a packaged Ruby distribution, make sure you have a C
+compiler and the matching Ruby development libraries and headers.
+
+If you use RubyGems:
+
+    gem install sleepy_penguin
+
+Otherwise grab the latest tarball from:
+
+http://bogomips.org/sleepy_penguin/files/
+
+Unpack it, and run "ruby setup.rb"
+
+== Development
+
+You can get the latest source via git from the following locations:
+
+  git://git.bogomips.org/sleepy_penguin.git
+  git://repo.or.cz/sleepy_penguin.git (mirror)
+
+You may browse the code from the web and download the latest snapshot
+tarballs here:
+
+* http://git.bogomips.org/cgit/sleepy_penguin.git (cgit)
+* http://repo.or.cz/w/sleepy_penguin.git (gitweb)
+
+Inline patches (from "git format-patch") to the mailing list are
+preferred because they allow code review and comments in the reply to
+the patch.
+
+We will adhere to mostly the same conventions for patch submissions as
+git itself.  See the Documentation/SubmittingPatches document
+distributed with git on on patch submission guidelines to follow.  Just
+don't email the git mailing list or maintainer with sleepy_penguin patches.
+
+== Contact
+
+All feedback (bug reports, user/development discussion, patches, pull
+requests) go to the mailing list: mailto:sleepy.penguin@librelist.com
+
+* http://bogomips.org/sleepy_penguin/archives/
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..5812156
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,154 @@
+# -*- encoding: binary -*-
+# most tasks are in the GNUmakefile which offers better parallelism
+def tags
+  timefmt = '%Y-%m-%dT%H:%M:%SZ'
+  @tags ||= `git tag -l`.split(/\n/).map do |tag|
+    if %r{\Av[\d\.]+\z} =~ tag
+      header, subject, body = `git cat-file tag #{tag}`.split(/\n\n/, 3)
+      header = header.split(/\n/)
+      tagger = header.grep(/\Atagger /).first
+      body ||= "initial"
+      {
+        :time => Time.at(tagger.split(/ /)[-2].to_i).utc.strftime(timefmt),
+        :tagger_name => %r{^tagger ([^<]+)}.match(tagger)[1].strip,
+        :tagger_email => %r{<([^>]+)>}.match(tagger)[1].strip,
+        :id => `git rev-parse refs/tags/#{tag}`.chomp!,
+        :tag => tag,
+        :subject => subject,
+        :body => body,
+      }
+    end
+  end.compact.sort { |a,b| b[:time] <=> a[:time] }
+end
+
+cgit_url = "http://git.bogomips.org/cgit/sleepy_penguin.git"
+git_url = ENV['GIT_URL'] || 'git://git.bogomips.org/sleepy_penguin.git'
+web_url = "http://bogomips.org/sleepy_penguin"
+
+desc 'prints news as an Atom feed'
+task :news_atom do
+  require 'nokogiri'
+  new_tags = tags[0,10]
+  puts(Nokogiri::XML::Builder.new do
+    feed :xmlns => "http://www.w3.org/2005/Atom" do
+      id! "#{web_url}NEWS.atom.xml"
+      title "sleepy_penguin news"
+      subtitle "epoll"
+      link! :rel => "alternate", :type => "text/html",
+            :href => "#{web_url}NEWS.html"
+      updated(new_tags.empty? ? "1970-01-01T00:00:00Z" : new_tags.first[:time])
+      new_tags.each do |tag|
+        entry do
+          title tag[:subject]
+          updated tag[:time]
+          published tag[:time]
+          author {
+            name tag[:tagger_name]
+            email tag[:tagger_email]
+          }
+          url = "#{cgit_url}/tag/?id=#{tag[:tag]}"
+          link! :rel => "alternate", :type => "text/html", :href =>url
+          id! url
+          message_only = tag[:body].split(/\n.+\(\d+\):\n {6}/s).first.strip
+          content({:type =>:text}, message_only)
+          content(:type =>:xhtml) { pre tag[:body] }
+        end
+      end
+    end
+  end.to_xml)
+end
+
+desc 'prints RDoc-formatted news'
+task :news_rdoc do
+  tags.each do |tag|
+    time = tag[:time].tr!('T', ' ').gsub!(/:\d\dZ/, ' UTC')
+    puts "=== #{tag[:tag].sub(/^v/, '')} / #{time}"
+    puts ""
+
+    body = tag[:body]
+    puts tag[:body].gsub(/^/sm, "  ").gsub(/[ \t]+$/sm, "")
+    puts ""
+  end
+end
+
+desc "print release changelog for Rubyforge"
+task :release_changes do
+  version = ENV['VERSION'] or abort "VERSION= needed"
+  version = "v#{version}"
+  vtags = tags.map { |tag| tag[:tag] =~ /\Av/ and tag[:tag] }.sort
+  prev = vtags[vtags.index(version) - 1]
+  if prev
+    system('git', 'diff', '--stat', prev, version) or abort $?
+    puts ""
+    system('git', 'log', "#{prev}..#{version}") or abort $?
+  else
+    system('git', 'log', version) or abort $?
+  end
+end
+
+desc "print release notes for Rubyforge"
+task :release_notes do
+  spec = Gem::Specification.load('sleepy_penguin.gemspec')
+  puts spec.description.strip
+  puts ""
+  puts "* #{spec.homepage}"
+  puts "* #{spec.email}"
+  puts "* #{git_url}"
+
+  _, _, body = `git cat-file tag v#{spec.version}`.split(/\n\n/, 3)
+  print "\nChanges:\n\n"
+  puts body
+end
+
+desc "read news article from STDIN and post to rubyforge"
+task :publish_news do
+  require 'rubyforge'
+  IO.select([STDIN], nil, nil, 1) or abort "E: news must be read from stdin"
+  msg = STDIN.readlines
+  subject = msg.shift
+  blank = msg.shift
+  blank == "\n" or abort "no newline after subject!"
+  subject.strip!
+  body = msg.join("").strip!
+
+  rf = RubyForge.new.configure
+  rf.login
+  rf.post_news('rainbows', subject, body)
+end
+
+desc "post to RAA"
+task :raa_update do
+  require 'net/http'
+  require 'net/netrc'
+  rc = Net::Netrc.locate('sleepy_penguin-raa') or abort "~/.netrc not found"
+  password = rc.password
+
+  s = Gem::Specification.load('sleepy_penguin.gemspec')
+  desc = [ s.description.strip ]
+  desc << ""
+  desc << "* #{s.email}"
+  desc << "* #{git_url}"
+  desc << "* #{cgit_url}"
+  desc = desc.join("\n")
+  uri = URI.parse('http://raa.ruby-lang.org/regist.rhtml')
+  form = {
+    :name => s.name,
+    :short_description => s.summary,
+    :version => s.version.to_s,
+    :status => 'experimental',
+    :owner => s.authors.first,
+    :email => s.email,
+    :category_major => 'Library',
+    :category_minor => 'System',
+    :url => s.homepage,
+    :download => 'http://rubyforge.org/frs/?group_id=8977',
+    :license => "Ruby's",
+    :description_style => 'Plain',
+    :description => desc,
+    :pass => password,
+    :submit => 'Update',
+  }
+  res = Net::HTTP.post_form(uri, form)
+  p res
+  puts res.body
+end
diff --git a/ext/sleepy_penguin/epoll.c b/ext/sleepy_penguin/epoll.c
new file mode 100644
index 0000000..89fc123
--- /dev/null
+++ b/ext/sleepy_penguin/epoll.c
@@ -0,0 +1,453 @@
+#include "sleepy_penguin.h"
+#include <sys/epoll.h>
+
+#ifndef EPOLL_CLOEXEC
+#  define EPOLL_CLOEXEC (int)(02000000)
+#endif
+
+static const int step = 64; /* unlikely to grow unless you're huge */
+static VALUE cEpoll_IO;
+static ID id_for_fd;
+
+struct rb_epoll {
+        int fd;
+        int timeout;
+        int maxevents;
+        int capa;
+        struct epoll_event *events;
+        VALUE io;
+};
+
+static struct rb_epoll *ep_get(VALUE self)
+{
+        struct rb_epoll *ep;
+
+        Data_Get_Struct(self, struct rb_epoll, ep);
+
+        return ep;
+}
+
+#ifndef HAVE_EPOLL_CREATE1
+/*
+ * fake epoll_create1() since some systems don't have it.
+ * Don't worry about thread-safety since current Ruby 1.9 won't
+ * call this without GVL.
+ */
+static int my_epoll_create1(int flags)
+{
+        int set_flags;
+        int fd = epoll_create(1024); /* size ignored since 2.6.8 */
+
+        if (fd < 0 || flags == 0)
+                return fd;
+
+        if (flags & EPOLL_CLOEXEC) {
+                set_flags = fcntl(fd, F_GETFD);
+                if (set_flags == -1)
+                        goto err;
+                set_flags = fcntl(fd, F_SETFD, set_flags | FD_CLOEXEC);
+                if (set_flags == -1)
+                        goto err;
+        }
+        return fd;
+err:
+        {
+                int saved_errno = errno;
+                close(fd);
+                errno = saved_errno;
+                return -1;
+        }
+}
+#define epoll_create1(flags) my_epoll_create1(flags)
+#endif
+
+static void gcmark(void *ptr)
+{
+        struct rb_epoll *ep = ptr;
+
+        rb_gc_mark(ep->io);
+}
+
+static void gcfree(void *ptr)
+{
+        struct rb_epoll *ep = ptr;
+
+        xfree(ep->events);
+        if (NIL_P(ep->io) && ep->fd >= 0) {
+                /* can't raise during GC */
+                (void)close(ep->fd);
+                errno = 0;
+        }
+        /* let GC take care of the underlying IO object if there is one */
+
+        xfree(ep);
+}
+
+static VALUE alloc(VALUE klass)
+{
+        struct rb_epoll *ep;
+        VALUE self;
+
+        self = Data_Make_Struct(klass, struct rb_epoll, gcmark, gcfree, ep);
+        ep->fd = -1;
+        ep->io = Qnil;
+        ep->capa = step;
+        ep->events = xmalloc(sizeof(struct epoll_event) * ep->capa);
+
+        return self;
+}
+
+/*
+ * creates a new Epoll object with an optional +flags+ argument.
+ * +flags+ may currently be +Epoll::CLOEXEC+ or 0 (or nil)
+ */
+static VALUE init(int argc, VALUE *argv, VALUE self)
+{
+        int flags;
+        struct rb_epoll *ep = ep_get(self);
+        VALUE fl;
+
+        rb_scan_args(argc, argv, "01", &fl);
+        if (NIL_P(fl)) {
+                flags = EPOLL_CLOEXEC;
+        } else {
+                switch (TYPE(fl)) {
+                case T_FIXNUM:
+                case T_BIGNUM:
+                        flags = NUM2INT(fl);
+                        break;
+                default:
+                        rb_raise(rb_eArgError, "flags must be an integer");
+                }
+        }
+
+        ep->fd = epoll_create1(flags);
+        if (ep->fd == -1) {
+                if (errno == EMFILE || errno == ENFILE || errno == ENOMEM) {
+                        rb_gc();
+                        ep->fd = epoll_create1(flags);
+                }
+                if (ep->fd == -1)
+                        rb_sys_fail("epoll_create1");
+        }
+
+        return self;
+}
+
+static VALUE ctl(VALUE self, VALUE io, VALUE flags, int op)
+{
+        struct epoll_event event;
+        struct rb_epoll *ep = ep_get(self);
+        int fd = my_fileno(io);
+        int rv;
+
+        event.events = NUM2UINT(flags);
+        event.data.ptr = (void *)io;
+
+        rv = epoll_ctl(ep->fd, op, fd, &event);
+        if (rv == -1) {
+                if (errno == ENOMEM) {
+                        rb_gc();
+                        rv = epoll_ctl(ep->fd, op, fd, &event);
+                }
+                if (rv == -1)
+                        rb_sys_fail("epoll_ctl");
+        }
+
+        return INT2NUM(rv);
+}
+
+/*
+ */
+static VALUE set(VALUE self, VALUE io, VALUE flags)
+{
+        struct epoll_event event;
+        struct rb_epoll *ep = ep_get(self);
+        int fd = my_fileno(io);
+        int rv;
+
+        event.events = NUM2UINT(flags);
+        event.data.ptr = (void *)io;
+
+        rv = epoll_ctl(ep->fd, EPOLL_CTL_MOD, fd, &event);
+        if (rv == -1) {
+                if (errno == ENOENT) {
+                        rv = epoll_ctl(ep->fd, EPOLL_CTL_ADD, fd, &event);
+                        if (rv == -1)
+                                rb_sys_fail("epoll_ctl - add");
+                        return INT2NUM(rv);
+                }
+                rb_sys_fail("epoll_ctl - mod");
+        }
+
+        return INT2NUM(rv);
+}
+
+static VALUE epwait_result(struct rb_epoll *ep, int n)
+{
+        int i;
+        struct epoll_event *epoll_event = ep->events;
+        VALUE obj_events, obj;
+
+        if (n == -1)
+                rb_sys_fail("epoll_wait");
+
+        for (i = n; --i >= 0; epoll_event++) {
+                obj_events = UINT2NUM(epoll_event->events);
+                obj = (VALUE)(epoll_event->data.ptr);
+                rb_yield_values(2, obj_events, obj);
+        }
+
+        /* grow our event buffer for the next epoll_wait call */
+        if (n == ep->capa) {
+                xfree(ep->events);
+                ep->capa += step;
+                ep->events = xmalloc(sizeof(struct epoll_event) * ep->capa);
+        }
+
+        return INT2NUM(n);
+}
+
+#if defined(HAVE_RB_THREAD_BLOCKING_REGION)
+static VALUE nogvl_wait(void *args)
+{
+        struct rb_epoll *ep = args;
+        int n = epoll_wait(ep->fd, ep->events, ep->maxevents, ep->timeout);
+
+        return (VALUE)n;
+}
+
+static VALUE real_epwait(struct rb_epoll *ep)
+{
+        int n;
+
+        do {
+                n = (int)rb_thread_blocking_region(nogvl_wait, ep,
+                                                   RUBY_UBF_IO, 0);
+        } while (n == -1 && errno == EINTR);
+
+        return epwait_result(ep, n);
+}
+#else /* 1.8 Green thread compatible code */
+/*
+ * we have to worry about green threads and always pass zero
+ * as the timeout for epoll_wait :(
+ */
+# include <rubysig.h>
+# include <sys/time.h>
+
+/* in case _BSD_SOURCE doesn't give us this macro */
+#ifndef timersub
+#  define timersub(a, b, result) \
+do { \
+        (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
+        (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
+        if ((result)->tv_usec < 0) { \
+                --(result)->tv_sec; \
+                (result)->tv_usec += 1000000; \
+        } \
+} while (0)
+#endif
+
+static int safe_epoll_wait(struct rb_epoll *ep)
+{
+        int n;
+
+        TRAP_BEG;
+        n = epoll_wait(ep->fd, ep->events, ep->maxevents, 0);
+        TRAP_END;
+
+        return n;
+}
+
+static int epwait_forever(struct rb_epoll *ep)
+{
+        int n;
+
+        do {
+                (void)rb_io_wait_readable(ep->fd);
+                n = safe_epoll_wait(ep);
+        } while (n == 0 || (n == -1 && errno == EINTR));
+
+        return n;
+}
+
+static int epwait_timed(struct rb_epoll *ep)
+{
+        struct timeval tv;
+
+        tv.tv_sec = ep->timeout / 1000;
+        tv.tv_usec = (ep->timeout % 1000) * 1000;
+
+        for (;;) {
+                struct timeval t0, now, diff;
+                int n;
+                fd_set rfds;
+
+                FD_ZERO(&rfds);
+                FD_SET(ep->fd, &rfds);
+
+                gettimeofday(&t0, NULL);
+                (void)rb_thread_select(ep->fd + 1, &rfds, NULL, NULL, &tv);
+                n = safe_epoll_wait(ep);
+
+                /*
+                 * if we got EINTR from epoll_wait /and/ timed out
+                 * just consider it a timeout and don't raise an error
+                 */
+
+                if (n > 0 || (n == -1 && errno != EINTR))
+                        return n;
+
+                gettimeofday(&now, NULL);
+                timersub(&now, &t0, &diff);
+                timersub(&tv, &diff, &tv);
+
+                if (tv.tv_usec < 0 || tv.tv_sec < 0)
+                        return (n == -1) ? 0 : n;
+        }
+
+        assert("should never get here (epwait_timed)");
+        return -1;
+}
+
+static VALUE real_epwait(struct rb_epoll *ep)
+{
+        int n;
+
+        if (ep->timeout == -1)
+                n = epwait_forever(ep);
+        else if (ep->timeout == 0)
+                n = safe_epoll_wait(ep);
+        else
+                n = epwait_timed(ep);
+
+        return epwait_result(ep, n);
+}
+#endif /* 1.8 Green thread compatibility code */
+
+static VALUE epwait(int argc, VALUE *argv, VALUE self)
+{
+        VALUE timeout, maxevents;
+        struct rb_epoll *ep = ep_get(self);
+
+        rb_need_block();
+        rb_scan_args(argc, argv, "02", &maxevents, &timeout);
+        ep->timeout = NIL_P(timeout) ? -1 : NUM2INT(timeout);
+        ep->maxevents = NIL_P(maxevents) ? ep->capa : NUM2INT(maxevents);
+
+        if (ep->maxevents > ep->capa) {
+                xfree(ep->events);
+                ep->capa = ep->maxevents;
+                ep->events = xmalloc(sizeof(struct epoll_event) * ep->capa);
+        }
+
+        return real_epwait(ep);
+}
+
+/* adds +io+ object the +self+ with +flags+ */
+static VALUE add(VALUE self, VALUE io, VALUE flags)
+{
+        return ctl(self, io, flags, EPOLL_CTL_ADD);
+}
+
+/* adds +io+ object the +self+ with +flags+ */
+static VALUE del(VALUE self, VALUE io, VALUE flags)
+{
+        return ctl(self, io, flags, EPOLL_CTL_DEL);
+}
+
+static VALUE mod(VALUE self, VALUE io, VALUE flags)
+{
+        return ctl(self, io, flags, EPOLL_CTL_MOD);
+}
+
+static VALUE to_io(VALUE self)
+{
+        struct rb_epoll *ep = ep_get(self);
+
+        if (NIL_P(ep->io))
+                ep->io = rb_funcall(cEpoll_IO, id_for_fd, 1, INT2NUM(ep->fd));
+
+        return ep->io;
+}
+
+static VALUE epclose(VALUE self)
+{
+        struct rb_epoll *ep = ep_get(self);
+
+        if (NIL_P(ep->io)) {
+                if (ep->fd < 0) {
+                        rb_raise(rb_eIOError, "closed");
+                } else {
+                        int e = close(ep->fd);
+
+                        ep->fd = -1;
+                        if (e == -1)
+                                rb_sys_fail("close");
+                }
+        } else {
+                ep->fd = -1;
+                rb_io_close(ep->io);
+        }
+
+        return Qnil;
+}
+
+static VALUE epclosed(VALUE self)
+{
+        struct rb_epoll *ep = ep_get(self);
+
+        return ep->fd < 0 ? Qtrue : Qfalse;
+}
+
+static VALUE init_copy(VALUE copy, VALUE orig)
+{
+        struct rb_epoll *a = ep_get(orig);
+        struct rb_epoll *b = ep_get(copy);
+
+        assert(a->events && b->events && a->events != b->events &&
+               NIL_P(b->io) && "Ruby broken?");
+
+        b->fd = dup(a->fd);
+        if (b->fd == -1) {
+                if (errno == ENFILE || errno == EMFILE) {
+                        rb_gc();
+                        b->fd = dup(a->fd);
+                }
+                if (b->fd == -1)
+                        rb_sys_fail("dup");
+        }
+
+        return copy;
+}
+
+void sleepy_penguin_init_epoll(void)
+{
+        VALUE mSleepyPenguin, cEpoll;
+
+        mSleepyPenguin = rb_const_get(rb_cObject, rb_intern("SleepyPenguin"));
+        cEpoll = rb_define_class_under(mSleepyPenguin, "Epoll", rb_cObject);
+        cEpoll_IO = rb_define_class_under(cEpoll, "IO", rb_cIO);
+        rb_define_method(cEpoll, "initialize", init, -1);
+        rb_define_method(cEpoll, "initialize_copy", init_copy, 1);
+        rb_define_alloc_func(cEpoll, alloc);
+        rb_define_method(cEpoll, "to_io", to_io, 0);
+        rb_define_method(cEpoll, "close", epclose, 0);
+        rb_define_method(cEpoll, "closed?", epclosed, 0);
+        rb_define_method(cEpoll, "add", add, 2);
+        rb_define_method(cEpoll, "mod", mod, 2);
+        rb_define_method(cEpoll, "del", del, 2);
+        rb_define_method(cEpoll, "set", set, 2);
+        rb_define_method(cEpoll, "wait", epwait, -1);
+        rb_define_const(cEpoll, "CLOEXEC", INT2NUM(EPOLL_CLOEXEC));
+        rb_define_const(cEpoll, "IN", INT2NUM(EPOLLIN));
+        rb_define_const(cEpoll, "OUT", INT2NUM(EPOLLOUT));
+        rb_define_const(cEpoll, "RDHUP", INT2NUM(EPOLLRDHUP));
+        rb_define_const(cEpoll, "PRI", INT2NUM(EPOLLPRI));
+        rb_define_const(cEpoll, "ERR", INT2NUM(EPOLLERR));
+        rb_define_const(cEpoll, "HUP", INT2NUM(EPOLLHUP));
+        rb_define_const(cEpoll, "ET", INT2NUM(EPOLLET));
+        rb_define_const(cEpoll, "ONESHOT", INT2NUM(EPOLLONESHOT));
+        id_for_fd = rb_intern("for_fd");
+}
diff --git a/ext/sleepy_penguin/extconf.rb b/ext/sleepy_penguin/extconf.rb
new file mode 100644
index 0000000..126a305
--- /dev/null
+++ b/ext/sleepy_penguin/extconf.rb
@@ -0,0 +1,7 @@
+require 'mkmf'
+have_header('sys/epoll.h') or abort 'sys/epoll.h not found'
+have_header('sys/select.h')
+have_func('epoll_create1', %w(sys/epoll.h))
+have_func('rb_thread_blocking_region')
+dir_config('sleepy_penguin')
+create_makefile('sleepy_penguin_ext')
diff --git a/ext/sleepy_penguin/init.c b/ext/sleepy_penguin/init.c
new file mode 100644
index 0000000..5dcfb01
--- /dev/null
+++ b/ext/sleepy_penguin/init.c
@@ -0,0 +1,6 @@
+void sleepy_penguin_init_epoll(void);
+
+void Init_sleepy_penguin_ext(void)
+{
+        sleepy_penguin_init_epoll();
+}
diff --git a/ext/sleepy_penguin/sleepy_penguin.h b/ext/sleepy_penguin/sleepy_penguin.h
new file mode 100644
index 0000000..6e43113
--- /dev/null
+++ b/ext/sleepy_penguin/sleepy_penguin.h
@@ -0,0 +1,44 @@
+#ifndef SLEEPY_PENGUIN_H
+#define SLEEPY_PENGUIN_H
+
+#include <ruby.h>
+#ifdef HAVE_RUBY_IO_H
+#  include <ruby/io.h>
+#else
+#  include <rubyio.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <unistd.h>
+
+#if ! HAVE_RB_IO_T
+#  define rb_io_t OpenFile
+#endif
+
+#ifdef GetReadFile
+#  define FPTR_TO_FD(fptr) (fileno(GetReadFile(fptr)))
+#else
+#  if !HAVE_RB_IO_T || (RUBY_VERSION_MAJOR == 1 && RUBY_VERSION_MINOR == 8)
+#    define FPTR_TO_FD(fptr) fileno(fptr->f)
+#  else
+#    define FPTR_TO_FD(fptr) fptr->fd
+#  endif
+#endif
+
+static int my_fileno(VALUE io)
+{
+        rb_io_t *fptr;
+
+        switch (TYPE(io)) {
+        case T_FIXNUM: return NUM2INT(io);
+        case T_FILE:
+                GetOpenFile(io, fptr);
+                return FPTR_TO_FD(fptr);
+        }
+        io = rb_convert_type(io, T_FILE, "IO", "to_io");
+        GetOpenFile(io, fptr);
+        return FPTR_TO_FD(fptr);
+}
+
+#endif /* SLEEPY_PENGUIN_H */
diff --git a/lib/sleepy_penguin.rb b/lib/sleepy_penguin.rb
new file mode 100644
index 0000000..c8cd8d3
--- /dev/null
+++ b/lib/sleepy_penguin.rb
@@ -0,0 +1,5 @@
+# -*- encoding: binary -*-
+module SleepyPenguin
+  VERSION = '1.0.0'
+end
+require 'sleepy_penguin_ext'
diff --git a/setup.rb b/setup.rb
new file mode 100644
index 0000000..cf1abd9
--- /dev/null
+++ b/setup.rb
@@ -0,0 +1,1586 @@
+# -*- encoding: binary -*-
+#
+# setup.rb
+#
+# Copyright (c) 2000-2005 Minero Aoki
+#
+# This program is free software.
+# You can distribute/modify this program under the terms of
+# the GNU LGPL, Lesser General Public License version 2.1.
+#
+
+unless Enumerable.method_defined?(:map)   # Ruby 1.4.6
+  module Enumerable
+    alias map collect
+  end
+end
+
+unless File.respond_to?(:read)   # Ruby 1.6
+  def File.read(fname)
+    open(fname) {|f|
+      return f.read
+    }
+  end
+end
+
+unless Errno.const_defined?(:ENOTEMPTY)   # Windows?
+  module Errno
+    class ENOTEMPTY
+      # We do not raise this exception, implementation is not needed.
+    end
+  end
+end
+
+def File.binread(fname)
+  open(fname, 'rb') {|f|
+    return f.read
+  }
+end
+
+# for corrupted Windows' stat(2)
+def File.dir?(path)
+  File.directory?((path[-1,1] == '/') ? path : path + '/')
+end
+
+
+class ConfigTable
+
+  include Enumerable
+
+  def initialize(rbconfig)
+    @rbconfig = rbconfig
+    @items = []
+    @table = {}
+    # options
+    @install_prefix = nil
+    @config_opt = nil
+    @verbose = true
+    @no_harm = false
+  end
+
+  attr_accessor :install_prefix
+  attr_accessor :config_opt
+
+  attr_writer :verbose
+
+  def verbose?
+    @verbose
+  end
+
+  attr_writer :no_harm
+
+  def no_harm?
+    @no_harm
+  end
+
+  def [](key)
+    lookup(key).resolve(self)
+  end
+
+  def []=(key, val)
+    lookup(key).set val
+  end
+
+  def names
+    @items.map {|i| i.name }
+  end
+
+  def each(&block)
+    @items.each(&block)
+  end
+
+  def key?(name)
+    @table.key?(name)
+  end
+
+  def lookup(name)
+    @table[name] or setup_rb_error "no such config item: #{name}"
+  end
+
+  def add(item)
+    @items.push item
+    @table[item.name] = item
+  end
+
+  def remove(name)
+    item = lookup(name)
+    @items.delete_if {|i| i.name == name }
+    @table.delete_if {|name, i| i.name == name }
+    item
+  end
+
+  def load_script(path, inst = nil)
+    if File.file?(path)
+      MetaConfigEnvironment.new(self, inst).instance_eval File.read(path), path
+    end
+  end
+
+  def savefile
+    '.config'
+  end
+
+  def load_savefile
+    begin
+      File.foreach(savefile()) do |line|
+        k, v = *line.split(/=/, 2)
+        self[k] = v.strip
+      end
+    rescue Errno::ENOENT
+      setup_rb_error $!.message + "\n#{File.basename($0)} config first"
+    end
+  end
+
+  def save
+    @items.each {|i| i.value }
+    File.open(savefile(), 'w') {|f|
+      @items.each do |i|
+        f.printf "%s=%s\n", i.name, i.value if i.value? and i.value
+      end
+    }
+  end
+
+  def load_standard_entries
+    standard_entries(@rbconfig).each do |ent|
+      add ent
+    end
+  end
+
+  def standard_entries(rbconfig)
+    c = rbconfig
+
+    rubypath = File.join(c['bindir'], c['ruby_install_name'] + c['EXEEXT'])
+
+    major = c['MAJOR'].to_i
+    minor = c['MINOR'].to_i
+    teeny = c['TEENY'].to_i
+    version = "#{major}.#{minor}"
+
+    # ruby ver. >= 1.4.4?
+    newpath_p = ((major >= 2) or
+                 ((major == 1) and
+                  ((minor >= 5) or
+                   ((minor == 4) and (teeny >= 4)))))
+
+    if c['rubylibdir']
+      # V > 1.6.3
+      libruby         = "#{c['prefix']}/lib/ruby"
+      librubyver      = c['rubylibdir']
+      librubyverarch  = c['archdir']
+      siteruby        = c['sitedir']
+      siterubyver     = c['sitelibdir']
+      siterubyverarch = c['sitearchdir']
+    elsif newpath_p
+      # 1.4.4 <= V <= 1.6.3
+      libruby         = "#{c['prefix']}/lib/ruby"
+      librubyver      = "#{c['prefix']}/lib/ruby/#{version}"
+      librubyverarch  = "#{c['prefix']}/lib/ruby/#{version}/#{c['arch']}"
+      siteruby        = c['sitedir']
+      siterubyver     = "$siteruby/#{version}"
+      siterubyverarch = "$siterubyver/#{c['arch']}"
+    else
+      # V < 1.4.4
+      libruby         = "#{c['prefix']}/lib/ruby"
+      librubyver      = "#{c['prefix']}/lib/ruby/#{version}"
+      librubyverarch  = "#{c['prefix']}/lib/ruby/#{version}/#{c['arch']}"
+      siteruby        = "#{c['prefix']}/lib/ruby/#{version}/site_ruby"
+      siterubyver     = siteruby
+      siterubyverarch = "$siterubyver/#{c['arch']}"
+    end
+    parameterize = lambda {|path|
+      path.sub(/\A#{Regexp.quote(c['prefix'])}/, '$prefix')
+    }
+
+    if arg = c['configure_args'].split.detect {|arg| /--with-make-prog=/ =~ arg }
+      makeprog = arg.sub(/'/, '').split(/=/, 2)[1]
+    else
+      makeprog = 'make'
+    end
+
+    [
+      ExecItem.new('installdirs', 'std/site/home',
+                   'std: install under libruby; site: install under site_ruby; home: install under $HOME')\
+          {|val, table|
+            case val
+            when 'std'
+              table['rbdir'] = '$librubyver'
+              table['sodir'] = '$librubyverarch'
+            when 'site'
+              table['rbdir'] = '$siterubyver'
+              table['sodir'] = '$siterubyverarch'
+            when 'home'
+              setup_rb_error '$HOME was not set' unless ENV['HOME']
+              table['prefix'] = ENV['HOME']
+              table['rbdir'] = '$libdir/ruby'
+              table['sodir'] = '$libdir/ruby'
+            end
+          },
+      PathItem.new('prefix', 'path', c['prefix'],
+                   'path prefix of target environment'),
+      PathItem.new('bindir', 'path', parameterize.call(c['bindir']),
+                   'the directory for commands'),
+      PathItem.new('libdir', 'path', parameterize.call(c['libdir']),
+                   'the directory for libraries'),
+      PathItem.new('datadir', 'path', parameterize.call(c['datadir']),
+                   'the directory for shared data'),
+      PathItem.new('mandir', 'path', parameterize.call(c['mandir']),
+                   'the directory for man pages'),
+      PathItem.new('sysconfdir', 'path', parameterize.call(c['sysconfdir']),
+                   'the directory for system configuration files'),
+      PathItem.new('localstatedir', 'path', parameterize.call(c['localstatedir']),
+                   'the directory for local state data'),
+      PathItem.new('libruby', 'path', libruby,
+                   'the directory for ruby libraries'),
+      PathItem.new('librubyver', 'path', librubyver,
+                   'the directory for standard ruby libraries'),
+      PathItem.new('librubyverarch', 'path', librubyverarch,
+                   'the directory for standard ruby extensions'),
+      PathItem.new('siteruby', 'path', siteruby,
+          'the directory for version-independent aux ruby libraries'),
+      PathItem.new('siterubyver', 'path', siterubyver,
+                   'the directory for aux ruby libraries'),
+      PathItem.new('siterubyverarch', 'path', siterubyverarch,
+                   'the directory for aux ruby binaries'),
+      PathItem.new('rbdir', 'path', '$siterubyver',
+                   'the directory for ruby scripts'),
+      PathItem.new('sodir', 'path', '$siterubyverarch',
+                   'the directory for ruby extentions'),
+      PathItem.new('rubypath', 'path', rubypath,
+                   'the path to set to #! line'),
+      ProgramItem.new('rubyprog', 'name', rubypath,
+                      'the ruby program using for installation'),
+      ProgramItem.new('makeprog', 'name', makeprog,
+                      'the make program to compile ruby extentions'),
+      SelectItem.new('shebang', 'all/ruby/never', 'ruby',
+                     'shebang line (#!) editing mode'),
+      BoolItem.new('without-ext', 'yes/no', 'no',
+                   'does not compile/install ruby extentions')
+    ]
+  end
+  private :standard_entries
+
+  def load_multipackage_entries
+    multipackage_entries().each do |ent|
+      add ent
+    end
+  end
+
+  def multipackage_entries
+    [
+      PackageSelectionItem.new('with', 'name,name...', '', 'ALL',
+                               'package names that you want to install'),
+      PackageSelectionItem.new('without', 'name,name...', '', 'NONE',
+                               'package names that you do not want to install')
+    ]
+  end
+  private :multipackage_entries
+
+  ALIASES = {
+    'std-ruby'         => 'librubyver',
+    'stdruby'          => 'librubyver',
+    'rubylibdir'       => 'librubyver',
+    'archdir'          => 'librubyverarch',
+    'site-ruby-common' => 'siteruby',     # For backward compatibility
+    'site-ruby'        => 'siterubyver',  # For backward compatibility
+    'bin-dir'          => 'bindir',
+    'bin-dir'          => 'bindir',
+    'rb-dir'           => 'rbdir',
+    'so-dir'           => 'sodir',
+    'data-dir'         => 'datadir',
+    'ruby-path'        => 'rubypath',
+    'ruby-prog'        => 'rubyprog',
+    'ruby'             => 'rubyprog',
+    'make-prog'        => 'makeprog',
+    'make'             => 'makeprog'
+  }
+
+  def fixup
+    ALIASES.each do |ali, name|
+      @table[ali] = @table[name]
+    end
+    @items.freeze
+    @table.freeze
+    @options_re = /\A--(#{@table.keys.join('|')})(?:=(.*))?\z/
+  end
+
+  def parse_opt(opt)
+    m = @options_re.match(opt) or setup_rb_error "config: unknown option #{opt}"
+    m.to_a[1,2]
+  end
+
+  def dllext
+    @rbconfig['DLEXT']
+  end
+
+  def value_config?(name)
+    lookup(name).value?
+  end
+
+  class Item
+    def initialize(name, template, default, desc)
+      @name = name.freeze
+      @template = template
+      @value = default
+      @default = default
+      @description = desc
+    end
+
+    attr_reader :name
+    attr_reader :description
+
+    attr_accessor :default
+    alias help_default default
+
+    def help_opt
+      "--#{@name}=#{@template}"
+    end
+
+    def value?
+      true
+    end
+
+    def value
+      @value
+    end
+
+    def resolve(table)
+      @value.gsub(%r<\$([^/]+)>) { table[$1] }
+    end
+
+    def set(val)
+      @value = check(val)
+    end
+
+    private
+
+    def check(val)
+      setup_rb_error "config: --#{name} requires argument" unless val
+      val
+    end
+  end
+
+  class BoolItem < Item
+    def config_type
+      'bool'
+    end
+
+    def help_opt
+      "--#{@name}"
+    end
+
+    private
+
+    def check(val)
+      return 'yes' unless val
+      case val
+      when /\Ay(es)?\z/i, /\At(rue)?\z/i then 'yes'
+      when /\An(o)?\z/i, /\Af(alse)\z/i  then 'no'
+      else
+        setup_rb_error "config: --#{@name} accepts only yes/no for argument"
+      end
+    end
+  end
+
+  class PathItem < Item
+    def config_type
+      'path'
+    end
+
+    private
+
+    def check(path)
+      setup_rb_error "config: --#{@name} requires argument"  unless path
+      path[0,1] == '$' ? path : File.expand_path(path)
+    end
+  end
+
+  class ProgramItem < Item
+    def config_type
+      'program'
+    end
+  end
+
+  class SelectItem < Item
+    def initialize(name, selection, default, desc)
+      super
+      @ok = selection.split('/')
+    end
+
+    def config_type
+      'select'
+    end
+
+    private
+
+    def check(val)
+      unless @ok.include?(val.strip)
+        setup_rb_error "config: use --#{@name}=#{@template} (#{val})"
+      end
+      val.strip
+    end
+  end
+
+  class ExecItem < Item
+    def initialize(name, selection, desc, &block)
+      super name, selection, nil, desc
+      @ok = selection.split('/')
+      @action = block
+    end
+
+    def config_type
+      'exec'
+    end
+
+    def value?
+      false
+    end
+
+    def resolve(table)
+      setup_rb_error "$#{name()} wrongly used as option value"
+    end
+
+    undef set
+
+    def evaluate(val, table)
+      v = val.strip.downcase
+      unless @ok.include?(v)
+        setup_rb_error "invalid option --#{@name}=#{val} (use #{@template})"
+      end
+      @action.call v, table
+    end
+  end
+
+  class PackageSelectionItem < Item
+    def initialize(name, template, default, help_default, desc)
+      super name, template, default, desc
+      @help_default = help_default
+    end
+
+    attr_reader :help_default
+
+    def config_type
+      'package'
+    end
+
+    private
+
+    def check(val)
+      unless File.dir?("packages/#{val}")
+        setup_rb_error "config: no such package: #{val}"
+      end
+      val
+    end
+  end
+
+  class MetaConfigEnvironment
+    def initialize(config, installer)
+      @config = config
+      @installer = installer
+    end
+
+    def config_names
+      @config.names
+    end
+
+    def config?(name)
+      @config.key?(name)
+    end
+
+    def bool_config?(name)
+      @config.lookup(name).config_type == 'bool'
+    end
+
+    def path_config?(name)
+      @config.lookup(name).config_type == 'path'
+    end
+
+    def value_config?(name)
+      @config.lookup(name).config_type != 'exec'
+    end
+
+    def add_config(item)
+      @config.add item
+    end
+
+    def add_bool_config(name, default, desc)
+      @config.add BoolItem.new(name, 'yes/no', default ? 'yes' : 'no', desc)
+    end
+
+    def add_path_config(name, default, desc)
+      @config.add PathItem.new(name, 'path', default, desc)
+    end
+
+    def set_config_default(name, default)
+      @config.lookup(name).default = default
+    end
+
+    def remove_config(name)
+      @config.remove(name)
+    end
+
+    # For only multipackage
+    def packages
+      raise '[setup.rb fatal] multi-package metaconfig API packages() called for single-package; contact application package vendor' unless @installer
+      @installer.packages
+    end
+
+    # For only multipackage
+    def declare_packages(list)
+      raise '[setup.rb fatal] multi-package metaconfig API declare_packages() called for single-package; contact application package vendor' unless @installer
+      @installer.packages = list
+    end
+  end
+
+end   # class ConfigTable
+
+
+# This module requires: #verbose?, #no_harm?
+module FileOperations
+
+  def mkdir_p(dirname, prefix = nil)
+    dirname = prefix + File.expand_path(dirname) if prefix
+    $stderr.puts "mkdir -p #{dirname}" if verbose?
+    return if no_harm?
+
+    # Does not check '/', it's too abnormal.
+    dirs = File.expand_path(dirname).split(%r<(?=/)>)
+    if /\A[a-z]:\z/i =~ dirs[0]
+      disk = dirs.shift
+      dirs[0] = disk + dirs[0]
+    end
+    dirs.each_index do |idx|
+      path = dirs[0..idx].join('')
+      Dir.mkdir path unless File.dir?(path)
+    end
+  end
+
+  def rm_f(path)
+    $stderr.puts "rm -f #{path}" if verbose?
+    return if no_harm?
+    force_remove_file path
+  end
+
+  def rm_rf(path)
+    $stderr.puts "rm -rf #{path}" if verbose?
+    return if no_harm?
+    remove_tree path
+  end
+
+  def remove_tree(path)
+    if File.symlink?(path)
+      remove_file path
+    elsif File.dir?(path)
+      remove_tree0 path
+    else
+      force_remove_file path
+    end
+  end
+
+  def remove_tree0(path)
+    Dir.foreach(path) do |ent|
+      next if ent == '.'
+      next if ent == '..'
+      entpath = "#{path}/#{ent}"
+      if File.symlink?(entpath)
+        remove_file entpath
+      elsif File.dir?(entpath)
+        remove_tree0 entpath
+      else
+        force_remove_file entpath
+      end
+    end
+    begin
+      Dir.rmdir path
+    rescue Errno::ENOTEMPTY
+      # directory may not be empty
+    end
+  end
+
+  def move_file(src, dest)
+    force_remove_file dest
+    begin
+      File.rename src, dest
+    rescue
+      File.open(dest, 'wb') {|f|
+        f.write File.binread(src)
+      }
+      File.chmod File.stat(src).mode, dest
+      File.unlink src
+    end
+  end
+
+  def force_remove_file(path)
+    begin
+      remove_file path
+    rescue
+    end
+  end
+
+  def remove_file(path)
+    File.chmod 0777, path
+    File.unlink path
+  end
+
+  def install(from, dest, mode, prefix = nil)
+    $stderr.puts "install #{from} #{dest}" if verbose?
+    return if no_harm?
+
+    realdest = prefix ? prefix + File.expand_path(dest) : dest
+    realdest = File.join(realdest, File.basename(from)) if File.dir?(realdest)
+    str = File.binread(from)
+    if diff?(str, realdest)
+      verbose_off {
+        rm_f realdest if File.exist?(realdest)
+      }
+      File.open(realdest, 'wb') {|f|
+        f.write str
+      }
+      File.chmod mode, realdest
+
+      File.open("#{objdir_root()}/InstalledFiles", 'a') {|f|
+        if prefix
+          f.puts realdest.sub(prefix, '')
+        else
+          f.puts realdest
+        end
+      }
+    end
+  end
+
+  def diff?(new_content, path)
+    return true unless File.exist?(path)
+    new_content != File.binread(path)
+  end
+
+  def command(*args)
+    $stderr.puts args.join(' ') if verbose?
+    system(*args) or raise RuntimeError,
+        "system(#{args.map{|a| a.inspect }.join(' ')}) failed"
+  end
+
+  def ruby(*args)
+    command config('rubyprog'), *args
+  end
+  
+  def make(task = nil)
+    command(*[config('makeprog'), task].compact)
+  end
+
+  def extdir?(dir)
+    File.exist?("#{dir}/MANIFEST") or File.exist?("#{dir}/extconf.rb")
+  end
+
+  def files_of(dir)
+    Dir.open(dir) {|d|
+      return d.select {|ent| File.file?("#{dir}/#{ent}") }
+    }
+  end
+
+  DIR_REJECT = %w( . .. CVS SCCS RCS CVS.adm .svn )
+
+  def directories_of(dir)
+    Dir.open(dir) {|d|
+      return d.select {|ent| File.dir?("#{dir}/#{ent}") } - DIR_REJECT
+    }
+  end
+
+end
+
+
+# This module requires: #srcdir_root, #objdir_root, #relpath
+module HookScriptAPI
+
+  def get_config(key)
+    @config[key]
+  end
+
+  alias config get_config
+
+  # obsolete: use metaconfig to change configuration
+  def set_config(key, val)
+    @config[key] = val
+  end
+
+  #
+  # srcdir/objdir (works only in the package directory)
+  #
+
+  def curr_srcdir
+    "#{srcdir_root()}/#{relpath()}"
+  end
+
+  def curr_objdir
+    "#{objdir_root()}/#{relpath()}"
+  end
+
+  def srcfile(path)
+    "#{curr_srcdir()}/#{path}"
+  end
+
+  def srcexist?(path)
+    File.exist?(srcfile(path))
+  end
+
+  def srcdirectory?(path)
+    File.dir?(srcfile(path))
+  end
+  
+  def srcfile?(path)
+    File.file?(srcfile(path))
+  end
+
+  def srcentries(path = '.')
+    Dir.open("#{curr_srcdir()}/#{path}") {|d|
+      return d.to_a - %w(. ..)
+    }
+  end
+
+  def srcfiles(path = '.')
+    srcentries(path).select {|fname|
+      File.file?(File.join(curr_srcdir(), path, fname))
+    }
+  end
+
+  def srcdirectories(path = '.')
+    srcentries(path).select {|fname|
+      File.dir?(File.join(curr_srcdir(), path, fname))
+    }
+  end
+
+end
+
+
+class ToplevelInstaller
+
+  Version   = '3.4.1'
+  Copyright = 'Copyright (c) 2000-2005 Minero Aoki'
+
+  TASKS = [
+    [ 'all',      'do config, setup, then install' ],
+    [ 'config',   'saves your configurations' ],
+    [ 'show',     'shows current configuration' ],
+    [ 'setup',    'compiles ruby extentions and others' ],
+    [ 'install',  'installs files' ],
+    [ 'test',     'run all tests in test/' ],
+    [ 'clean',    "does `make clean' for each extention" ],
+    [ 'distclean',"does `make distclean' for each extention" ]
+  ]
+
+  def ToplevelInstaller.invoke
+    config = ConfigTable.new(load_rbconfig())
+    config.load_standard_entries
+    config.load_multipackage_entries if multipackage?
+    config.fixup
+    klass = (multipackage?() ? ToplevelInstallerMulti : ToplevelInstaller)
+    klass.new(File.dirname($0), config).invoke
+  end
+
+  def ToplevelInstaller.multipackage?
+    File.dir?(File.dirname($0) + '/packages')
+  end
+
+  def ToplevelInstaller.load_rbconfig
+    if arg = ARGV.detect {|arg| /\A--rbconfig=/ =~ arg }
+      ARGV.delete(arg)
+      load File.expand_path(arg.split(/=/, 2)[1])
+      $".push 'rbconfig.rb'
+    else
+      require 'rbconfig'
+    end
+    ::Config::CONFIG
+  end
+
+  def initialize(ardir_root, config)
+    @ardir = File.expand_path(ardir_root)
+    @config = config
+    # cache
+    @valid_task_re = nil
+  end
+
+  def config(key)
+    @config[key]
+  end
+
+  def inspect
+    "#<#{self.class} #{__id__()}>"
+  end
+
+  def invoke
+    run_metaconfigs
+    case task = parsearg_global()
+    when nil, 'all'
+      parsearg_config
+      init_installers
+      exec_config
+      exec_setup
+      exec_install
+    else
+      case task
+      when 'config', 'test'
+        ;
+      when 'clean', 'distclean'
+        @config.load_savefile if File.exist?(@config.savefile)
+      else
+        @config.load_savefile
+      end
+      __send__ "parsearg_#{task}"
+      init_installers
+      __send__ "exec_#{task}"
+    end
+  end
+  
+  def run_metaconfigs
+    @config.load_script "#{@ardir}/metaconfig"
+  end
+
+  def init_installers
+    @installer = Installer.new(@config, @ardir, File.expand_path('.'))
+  end
+
+  #
+  # Hook Script API bases
+  #
+
+  def srcdir_root
+    @ardir
+  end
+
+  def objdir_root
+    '.'
+  end
+
+  def relpath
+    '.'
+  end
+
+  #
+  # Option Parsing
+  #
+
+  def parsearg_global
+    while arg = ARGV.shift
+      case arg
+      when /\A\w+\z/
+        setup_rb_error "invalid task: #{arg}" unless valid_task?(arg)
+        return arg
+      when '-q', '--quiet'
+        @config.verbose = false
+      when '--verbose'
+        @config.verbose = true
+      when '--help'
+        print_usage $stdout
+        exit 0
+      when '--version'
+        puts "#{File.basename($0)} version #{Version}"
+        exit 0
+      when '--copyright'
+        puts Copyright
+        exit 0
+      else
+        setup_rb_error "unknown global option '#{arg}'"
+      end
+    end
+    nil
+  end
+
+  def valid_task?(t)
+    valid_task_re() =~ t
+  end
+
+  def valid_task_re
+    @valid_task_re ||= /\A(?:#{TASKS.map {|task,desc| task }.join('|')})\z/
+  end
+
+  def parsearg_no_options
+    unless ARGV.empty?
+      task = caller(0).first.slice(%r<`parsearg_(\w+)'>, 1)
+      setup_rb_error "#{task}: unknown options: #{ARGV.join(' ')}"
+    end
+  end
+
+  alias parsearg_show       parsearg_no_options
+  alias parsearg_setup      parsearg_no_options
+  alias parsearg_test       parsearg_no_options
+  alias parsearg_clean      parsearg_no_options
+  alias parsearg_distclean  parsearg_no_options
+
+  def parsearg_config
+    evalopt = []
+    set = []
+    @config.config_opt = []
+    while i = ARGV.shift
+      if /\A--?\z/ =~ i
+        @config.config_opt = ARGV.dup
+        break
+      end
+      name, value = *@config.parse_opt(i)
+      if @config.value_config?(name)
+        @config[name] = value
+      else
+        evalopt.push [name, value]
+      end
+      set.push name
+    end
+    evalopt.each do |name, value|
+      @config.lookup(name).evaluate value, @config
+    end
+    # Check if configuration is valid
+    set.each do |n|
+      @config[n] if @config.value_config?(n)
+    end
+  end
+
+  def parsearg_install
+    @config.no_harm = false
+    @config.install_prefix = ''
+    while a = ARGV.shift
+      case a
+      when '--no-harm'
+        @config.no_harm = true
+      when /\A--prefix=/
+        path = a.split(/=/, 2)[1]
+        path = File.expand_path(path) unless path[0,1] == '/'
+        @config.install_prefix = path
+      else
+        setup_rb_error "install: unknown option #{a}"
+      end
+    end
+  end
+
+  def print_usage(out)
+    out.puts 'Typical Installation Procedure:'
+    out.puts "  $ ruby #{File.basename $0} config"
+    out.puts "  $ ruby #{File.basename $0} setup"
+    out.puts "  # ruby #{File.basename $0} install (may require root privilege)"
+    out.puts
+    out.puts 'Detailed Usage:'
+    out.puts "  ruby #{File.basename $0} <global option>"
+    out.puts "  ruby #{File.basename $0} [<global options>] <task> [<task options>]"
+
+    fmt = "  %-24s %s\n"
+    out.puts
+    out.puts 'Global options:'
+    out.printf fmt, '-q,--quiet',   'suppress message outputs'
+    out.printf fmt, '   --verbose', 'output messages verbosely'
+    out.printf fmt, '   --help',    'print this message'
+    out.printf fmt, '   --version', 'print version and quit'
+    out.printf fmt, '   --copyright',  'print copyright and quit'
+    out.puts
+    out.puts 'Tasks:'
+    TASKS.each do |name, desc|
+      out.printf fmt, name, desc
+    end
+
+    fmt = "  %-24s %s [%s]\n"
+    out.puts
+    out.puts 'Options for CONFIG or ALL:'
+    @config.each do |item|
+      out.printf fmt, item.help_opt, item.description, item.help_default
+    end
+    out.printf fmt, '--rbconfig=path', 'rbconfig.rb to load',"running ruby's"
+    out.puts
+    out.puts 'Options for INSTALL:'
+    out.printf fmt, '--no-harm', 'only display what to do if given', 'off'
+    out.printf fmt, '--prefix=path',  'install path prefix', ''
+    out.puts
+  end
+
+  #
+  # Task Handlers
+  #
+
+  def exec_config
+    @installer.exec_config
+    @config.save   # must be final
+  end
+
+  def exec_setup
+    @installer.exec_setup
+  end
+
+  def exec_install
+    @installer.exec_install
+  end
+
+  def exec_test
+    @installer.exec_test
+  end
+
+  def exec_show
+    @config.each do |i|
+      printf "%-20s %s\n", i.name, i.value if i.value?
+    end
+  end
+
+  def exec_clean
+    @installer.exec_clean
+  end
+
+  def exec_distclean
+    @installer.exec_distclean
+  end
+
+end   # class ToplevelInstaller
+
+
+class ToplevelInstallerMulti < ToplevelInstaller
+
+  include FileOperations
+
+  def initialize(ardir_root, config)
+    super
+    @packages = directories_of("#{@ardir}/packages")
+    raise 'no package exists' if @packages.empty?
+    @root_installer = Installer.new(@config, @ardir, File.expand_path('.'))
+  end
+
+  def run_metaconfigs
+    @config.load_script "#{@ardir}/metaconfig", self
+    @packages.each do |name|
+      @config.load_script "#{@ardir}/packages/#{name}/metaconfig"
+    end
+  end
+
+  attr_reader :packages
+
+  def packages=(list)
+    raise 'package list is empty' if list.empty?
+    list.each do |name|
+      raise "directory packages/#{name} does not exist"\
+              unless File.dir?("#{@ardir}/packages/#{name}")
+    end
+    @packages = list
+  end
+
+  def init_installers
+    @installers = {}
+    @packages.each do |pack|
+      @installers[pack] = Installer.new(@config,
+                                       "#{@ardir}/packages/#{pack}",
+                                       "packages/#{pack}")
+    end
+    with    = extract_selection(config('with'))
+    without = extract_selection(config('without'))
+    @selected = @installers.keys.select {|name|
+                  (with.empty? or with.include?(name)) \
+                      and not without.include?(name)
+                }
+  end
+
+  def extract_selection(list)
+    a = list.split(/,/)
+    a.each do |name|
+      setup_rb_error "no such package: #{name}"  unless @installers.key?(name)
+    end
+    a
+  end
+
+  def print_usage(f)
+    super
+    f.puts 'Inluded packages:'
+    f.puts '  ' + @packages.sort.join(' ')
+    f.puts
+  end
+
+  #
+  # Task Handlers
+  #
+
+  def exec_config
+    run_hook 'pre-config'
+    each_selected_installers {|inst| inst.exec_config }
+    run_hook 'post-config'
+    @config.save   # must be final
+  end
+
+  def exec_setup
+    run_hook 'pre-setup'
+    each_selected_installers {|inst| inst.exec_setup }
+    run_hook 'post-setup'
+  end
+
+  def exec_install
+    run_hook 'pre-install'
+    each_selected_installers {|inst| inst.exec_install }
+    run_hook 'post-install'
+  end
+
+  def exec_test
+    run_hook 'pre-test'
+    each_selected_installers {|inst| inst.exec_test }
+    run_hook 'post-test'
+  end
+
+  def exec_clean
+    rm_f @config.savefile
+    run_hook 'pre-clean'
+    each_selected_installers {|inst| inst.exec_clean }
+    run_hook 'post-clean'
+  end
+
+  def exec_distclean
+    rm_f @config.savefile
+    run_hook 'pre-distclean'
+    each_selected_installers {|inst| inst.exec_distclean }
+    run_hook 'post-distclean'
+  end
+
+  #
+  # lib
+  #
+
+  def each_selected_installers
+    Dir.mkdir 'packages' unless File.dir?('packages')
+    @selected.each do |pack|
+      $stderr.puts "Processing the package `#{pack}' ..." if verbose?
+      Dir.mkdir "packages/#{pack}" unless File.dir?("packages/#{pack}")
+      Dir.chdir "packages/#{pack}"
+      yield @installers[pack]
+      Dir.chdir '../..'
+    end
+  end
+
+  def run_hook(id)
+    @root_installer.run_hook id
+  end
+
+  # module FileOperations requires this
+  def verbose?
+    @config.verbose?
+  end
+
+  # module FileOperations requires this
+  def no_harm?
+    @config.no_harm?
+  end
+
+end   # class ToplevelInstallerMulti
+
+
+class Installer
+
+  FILETYPES = %w( bin lib ext data conf man )
+
+  include FileOperations
+  include HookScriptAPI
+
+  def initialize(config, srcroot, objroot)
+    @config = config
+    @srcdir = File.expand_path(srcroot)
+    @objdir = File.expand_path(objroot)
+    @currdir = '.'
+  end
+
+  def inspect
+    "#<#{self.class} #{File.basename(@srcdir)}>"
+  end
+
+  def noop(rel)
+  end
+
+  #
+  # Hook Script API base methods
+  #
+
+  def srcdir_root
+    @srcdir
+  end
+
+  def objdir_root
+    @objdir
+  end
+
+  def relpath
+    @currdir
+  end
+
+  #
+  # Config Access
+  #
+
+  # module FileOperations requires this
+  def verbose?
+    @config.verbose?
+  end
+
+  # module FileOperations requires this
+  def no_harm?
+    @config.no_harm?
+  end
+
+  def verbose_off
+    begin
+      save, @config.verbose = @config.verbose?, false
+      yield
+    ensure
+      @config.verbose = save
+    end
+  end
+
+  #
+  # TASK config
+  #
+
+  def exec_config
+    exec_task_traverse 'config'
+  end
+
+  alias config_dir_bin noop
+  alias config_dir_lib noop
+
+  def config_dir_ext(rel)
+    extconf if extdir?(curr_srcdir())
+  end
+
+  alias config_dir_data noop
+  alias config_dir_conf noop
+  alias config_dir_man noop
+
+  def extconf
+    ruby "#{curr_srcdir()}/extconf.rb", *@config.config_opt
+  end
+
+  #
+  # TASK setup
+  #
+
+  def exec_setup
+    exec_task_traverse 'setup'
+  end
+
+  def setup_dir_bin(rel)
+    files_of(curr_srcdir()).each do |fname|
+      update_shebang_line "#{curr_srcdir()}/#{fname}"
+    end
+  end
+
+  alias setup_dir_lib noop
+
+  def setup_dir_ext(rel)
+    make if extdir?(curr_srcdir())
+  end
+
+  alias setup_dir_data noop
+  alias setup_dir_conf noop
+  alias setup_dir_man noop
+
+  def update_shebang_line(path)
+    return if no_harm?
+    return if config('shebang') == 'never'
+    old = Shebang.load(path)
+    if old
+      $stderr.puts "warning: #{path}: Shebang line includes too many args.  It is not portable and your program may not work." if old.args.size > 1
+      new = new_shebang(old)
+      return if new.to_s == old.to_s
+    else
+      return unless config('shebang') == 'all'
+      new = Shebang.new(config('rubypath'))
+    end
+    $stderr.puts "updating shebang: #{File.basename(path)}" if verbose?
+    open_atomic_writer(path) {|output|
+      File.open(path, 'rb') {|f|
+        f.gets if old   # discard
+        output.puts new.to_s
+        output.print f.read
+      }
+    }
+  end
+
+  def new_shebang(old)
+    if /\Aruby/ =~ File.basename(old.cmd)
+      Shebang.new(config('rubypath'), old.args)
+    elsif File.basename(old.cmd) == 'env' and old.args.first == 'ruby'
+      Shebang.new(config('rubypath'), old.args[1..-1])
+    else
+      return old unless config('shebang') == 'all'
+      Shebang.new(config('rubypath'))
+    end
+  end
+
+  def open_atomic_writer(path, &block)
+    tmpfile = File.basename(path) + '.tmp'
+    begin
+      File.open(tmpfile, 'wb', &block)
+      File.rename tmpfile, File.basename(path)
+    ensure
+      File.unlink tmpfile if File.exist?(tmpfile)
+    end
+  end
+
+  class Shebang
+    def Shebang.load(path)
+      line = nil
+      File.open(path) {|f|
+        line = f.gets
+      }
+      return nil unless /\A#!/ =~ line
+      parse(line)
+    end
+
+    def Shebang.parse(line)
+      cmd, *args = *line.strip.sub(/\A\#!/, '').split(' ')
+      new(cmd, args)
+    end
+
+    def initialize(cmd, args = [])
+      @cmd = cmd
+      @args = args
+    end
+
+    attr_reader :cmd
+    attr_reader :args
+
+    def to_s
+      "#! #{@cmd}" + (@args.empty? ? '' : " #{@args.join(' ')}")
+    end
+  end
+
+  #
+  # TASK install
+  #
+
+  def exec_install
+    rm_f 'InstalledFiles'
+    exec_task_traverse 'install'
+  end
+
+  def install_dir_bin(rel)
+    install_files targetfiles(), "#{config('bindir')}/#{rel}", 0755
+  end
+
+  def install_dir_lib(rel)
+    install_files libfiles(), "#{config('rbdir')}/#{rel}", 0644
+  end
+
+  def install_dir_ext(rel)
+    return unless extdir?(curr_srcdir())
+    install_files rubyextentions('.'),
+                  "#{config('sodir')}/#{File.dirname(rel)}",
+                  0555
+  end
+
+  def install_dir_data(rel)
+    install_files targetfiles(), "#{config('datadir')}/#{rel}", 0644
+  end
+
+  def install_dir_conf(rel)
+    # FIXME: should not remove current config files
+    # (rename previous file to .old/.org)
+    install_files targetfiles(), "#{config('sysconfdir')}/#{rel}", 0644
+  end
+
+  def install_dir_man(rel)
+    install_files targetfiles(), "#{config('mandir')}/#{rel}", 0644
+  end
+
+  def install_files(list, dest, mode)
+    mkdir_p dest, @config.install_prefix
+    list.each do |fname|
+      install fname, dest, mode, @config.install_prefix
+    end
+  end
+
+  def libfiles
+    glob_reject(%w(*.y *.output), targetfiles())
+  end
+
+  def rubyextentions(dir)
+    ents = glob_select("*.#{@config.dllext}", targetfiles())
+    if ents.empty?
+      setup_rb_error "no ruby extention exists: 'ruby #{$0} setup' first"
+    end
+    ents
+  end
+
+  def targetfiles
+    mapdir(existfiles() - hookfiles())
+  end
+
+  def mapdir(ents)
+    ents.map {|ent|
+      if File.exist?(ent)
+      then ent                         # objdir
+      else "#{curr_srcdir()}/#{ent}"   # srcdir
+      end
+    }
+  end
+
+  # picked up many entries from cvs-1.11.1/src/ignore.c
+  JUNK_FILES = %w( 
+    core RCSLOG tags TAGS .make.state
+    .nse_depinfo #* .#* cvslog.* ,* .del-* *.olb
+    *~ *.old *.bak *.BAK *.orig *.rej _$* *$
+
+    *.org *.in .*
+  )
+
+  def existfiles
+    glob_reject(JUNK_FILES, (files_of(curr_srcdir()) | files_of('.')))
+  end
+
+  def hookfiles
+    %w( pre-%s post-%s pre-%s.rb post-%s.rb ).map {|fmt|
+      %w( config setup install clean ).map {|t| sprintf(fmt, t) }
+    }.flatten
+  end
+
+  def glob_select(pat, ents)
+    re = globs2re([pat])
+    ents.select {|ent| re =~ ent }
+  end
+
+  def glob_reject(pats, ents)
+    re = globs2re(pats)
+    ents.reject {|ent| re =~ ent }
+  end
+
+  GLOB2REGEX = {
+    '.' => '\.',
+    '$' => '\$',
+    '#' => '\#',
+    '*' => '.*'
+  }
+
+  def globs2re(pats)
+    /\A(?:#{
+      pats.map {|pat| pat.gsub(/[\.\$\#\*]/) {|ch| GLOB2REGEX[ch] } }.join('|')
+    })\z/
+  end
+
+  #
+  # TASK test
+  #
+
+  TESTDIR = 'test'
+
+  def exec_test
+    unless File.directory?('test')
+      $stderr.puts 'no test in this package' if verbose?
+      return
+    end
+    $stderr.puts 'Running tests...' if verbose?
+    begin
+      require 'test/unit'
+    rescue LoadError
+      setup_rb_error 'test/unit cannot loaded.  You need Ruby 1.8 or later to invoke this task.'
+    end
+    runner = Test::Unit::AutoRunner.new(true)
+    runner.to_run << TESTDIR
+    runner.run
+  end
+
+  #
+  # TASK clean
+  #
+
+  def exec_clean
+    exec_task_traverse 'clean'
+    rm_f @config.savefile
+    rm_f 'InstalledFiles'
+  end
+
+  alias clean_dir_bin noop
+  alias clean_dir_lib noop
+  alias clean_dir_data noop
+  alias clean_dir_conf noop
+  alias clean_dir_man noop
+
+  def clean_dir_ext(rel)
+    return unless extdir?(curr_srcdir())
+    make 'clean' if File.file?('Makefile')
+  end
+
+  #
+  # TASK distclean
+  #
+
+  def exec_distclean
+    exec_task_traverse 'distclean'
+    rm_f @config.savefile
+    rm_f 'InstalledFiles'
+  end
+
+  alias distclean_dir_bin noop
+  alias distclean_dir_lib noop
+
+  def distclean_dir_ext(rel)
+    return unless extdir?(curr_srcdir())
+    make 'distclean' if File.file?('Makefile')
+  end
+
+  alias distclean_dir_data noop
+  alias distclean_dir_conf noop
+  alias distclean_dir_man noop
+
+  #
+  # Traversing
+  #
+
+  def exec_task_traverse(task)
+    run_hook "pre-#{task}"
+    FILETYPES.each do |type|
+      if type == 'ext' and config('without-ext') == 'yes'
+        $stderr.puts 'skipping ext/* by user option' if verbose?
+        next
+      end
+      traverse task, type, "#{task}_dir_#{type}"
+    end
+    run_hook "post-#{task}"
+  end
+
+  def traverse(task, rel, mid)
+    dive_into(rel) {
+      run_hook "pre-#{task}"
+      __send__ mid, rel.sub(%r[\A.*?(?:/|\z)], '')
+      directories_of(curr_srcdir()).each do |d|
+        traverse task, "#{rel}/#{d}", mid
+      end
+      run_hook "post-#{task}"
+    }
+  end
+
+  def dive_into(rel)
+    return unless File.dir?("#{@srcdir}/#{rel}")
+
+    dir = File.basename(rel)
+    Dir.mkdir dir unless File.dir?(dir)
+    prevdir = Dir.pwd
+    Dir.chdir dir
+    $stderr.puts '---> ' + rel if verbose?
+    @currdir = rel
+    yield
+    Dir.chdir prevdir
+    $stderr.puts '<--- ' + rel if verbose?
+    @currdir = File.dirname(rel)
+  end
+
+  def run_hook(id)
+    path = [ "#{curr_srcdir()}/#{id}",
+             "#{curr_srcdir()}/#{id}.rb" ].detect {|cand| File.file?(cand) }
+    return unless path
+    begin
+      instance_eval File.read(path), path, 1
+    rescue
+      raise if $DEBUG
+      setup_rb_error "hook #{path} failed:\n" + $!.message
+    end
+  end
+
+end   # class Installer
+
+
+class SetupError < StandardError; end
+
+def setup_rb_error(msg)
+  raise SetupError, msg
+end
+
+if $0 == __FILE__
+  begin
+    ToplevelInstaller.invoke
+  rescue SetupError
+    raise if $DEBUG
+    $stderr.puts $!.message
+    $stderr.puts "Try 'ruby #{$0} --help' for detailed usage."
+    exit 1
+  end
+end
diff --git a/test/test_epoll.rb b/test/test_epoll.rb
new file mode 100644
index 0000000..97d244c
--- /dev/null
+++ b/test/test_epoll.rb
@@ -0,0 +1,234 @@
+require 'test/unit'
+require 'fcntl'
+require 'socket'
+$-w = true
+
+require 'sleepy_penguin'
+
+class TestEpoll < Test::Unit::TestCase
+  include SleepyPenguin
+
+  def setup
+    @rd, @wr = IO.pipe
+    @ep = Epoll.new
+  end
+
+  def teardown
+    assert_nothing_raised do
+      @rd.close unless @rd.closed?
+      @wr.close unless @wr.closed?
+      @ep.close unless @ep.closed?
+    end
+  end
+
+  def test_max_events_big
+    @ep.add @rd, Epoll::IN
+    tmp = []
+    thr = Thread.new { @ep.wait(1024) { |flags, obj| tmp << [ flags, obj ] } }
+    Thread.pass
+    assert tmp.empty?
+    @wr.write '.'
+    thr.join
+    assert_equal([[Epoll::IN, @rd]], tmp)
+    tmp.clear
+    thr = Thread.new { @ep.wait { |flags, obj| tmp << [ flags, obj ] } }
+    thr.join
+    assert_equal([[Epoll::IN, @rd]], tmp)
+  end
+
+  def test_max_events_small
+    @ep.add @rd, Epoll::IN | Epoll::ET
+    @ep.add @wr, Epoll::OUT | Epoll::ET
+    @wr.write '.'
+    tmp = []
+    @ep.wait(1) { |flags, obj| tmp << [ flags, obj ] }
+    assert_equal 1, tmp.size
+    @ep.wait(1) { |flags, obj| tmp << [ flags, obj ] }
+    assert_equal 2, tmp.size
+  end
+
+  def test_signal_safe
+    time = {}
+    trap(:USR1) { time[:USR1] = Time.now; sleep 0.1; @wr.write '.' }
+    @ep.add @rd, Epoll::IN
+    tmp = []
+    pid = fork do
+      sleep 0.1 # slightly racy :<
+      Process.kill(:USR1, Process.ppid)
+    end
+    time[:START_WAIT] = Time.now
+    @ep.wait { |flags, obj| tmp << [ flags, obj ]; time[:EP] = Time.now }
+    assert_equal([[Epoll::IN, @rd]], tmp)
+    _, status = Process.waitpid2(pid)
+    assert status.success?
+    assert((time[:USR1] - time[:START_WAIT]) >= 0.1)
+    assert((time[:USR1] - time[:START_WAIT]) < 0.15)
+    assert((time[:EP] - time[:USR1]) >= 0.1)
+    assert((time[:EP] - time[:USR1]) < 0.15)
+    ensure
+      trap(:USR1, 'DEFAULT')
+  end
+
+  def test_close
+    @ep.add @rd, Epoll::IN
+    tmp = []
+    thr = Thread.new { @ep.wait { |flags, obj| tmp << [ flags, obj ] } }
+    @rd.close
+    @wr.close
+    assert_nil thr.join(0.01)
+    assert thr.alive?
+    thr.kill
+    assert tmp.empty?
+  end
+
+  def test_rdhup
+    rd, wr = UNIXSocket.pair
+    @ep.add rd, Epoll::RDHUP
+    tmp = []
+    thr = Thread.new { @ep.wait { |flags, obj| tmp << [ flags, obj ] } }
+    wr.shutdown Socket::SHUT_WR
+    thr.join
+    assert_equal([[ Epoll::RDHUP, rd ]], tmp)
+  end
+
+  def test_hup
+    @ep.add @rd, Epoll::IN
+    tmp = []
+    thr = Thread.new { @ep.wait { |flags, obj| tmp << [ flags, obj ] } }
+    @wr.close
+    thr.join
+    assert_equal([[ Epoll::HUP, @rd ]], tmp)
+  end
+
+  def test_multiple
+    r, w = IO.pipe
+    assert_nothing_raised do
+      @ep.add r, Epoll::IN
+      @ep.add @rd, Epoll::IN
+      @ep.add w, Epoll::OUT
+      @ep.add @wr, Epoll::OUT
+    end
+    tmp = []
+    @ep.wait { |flags, obj| tmp << [ flags, obj ] }
+    assert_equal 2, tmp.size
+    assert_equal [ Epoll::OUT ], tmp.map { |flags, obj| flags }.uniq
+    ios = tmp.map { |flags, obj| obj }
+    assert ios.include?(@wr)
+    assert ios.include?(w)
+  end
+
+  def test_gc
+    assert_nothing_raised { 4096.times { Epoll.new } }
+    assert ! @ep.closed?
+  end
+
+  def test_gc_to_io
+    assert_nothing_raised do
+      4096.times do
+        ep = Epoll.new
+        io = ep.to_io
+      end
+    end
+    assert ! @ep.closed?
+  end
+
+  def test_clone
+    tmp = []
+    clone = @ep.clone
+    assert @ep.to_io.fileno != clone.to_io.fileno
+    clone.add @wr, Epoll::OUT
+    @ep.wait(nil, 0) { |flags, obj| tmp << [ flags, obj ] }
+    assert_equal([[Epoll::OUT, @wr]], tmp)
+  end
+
+  def test_dup
+    tmp = []
+    clone = @ep.clone
+    assert @ep.to_io.fileno != clone.to_io.fileno
+    clone.add @wr, Epoll::OUT
+    @ep.wait(nil, 0) { |flags, obj| tmp << [ flags, obj ] }
+    assert_equal([[Epoll::OUT, @wr]], tmp)
+  end
+
+  def test_set_idempotency
+    assert_nothing_raised do
+      @ep.set @rd, Epoll::IN
+      @ep.set @rd, Epoll::IN
+      @ep.set @wr, Epoll::OUT
+      @ep.set @wr, Epoll::OUT
+    end
+  end
+
+  def test_wait_timeout
+    t0 = Time.now
+    assert_equal 0, @ep.wait(nil, 100) { |flags,obj| assert false }
+    diff = Time.now - t0
+    assert(diff >= 0.075, "#{diff} < 0.100s")
+  end
+
+  def test_wait_read
+    @ep.add(@rd, Epoll::IN)
+    assert_equal 0, @ep.wait(nil, 0) { |flags,obj| assert false }
+    @wr.syswrite '.'
+    i = 0
+    nr = @ep.wait(nil, 0) do |flags,obj|
+      assert_equal Epoll::IN, flags
+      assert_equal obj, @rd
+      i += 1
+    end
+    assert_equal 1, i
+    assert_equal 1, nr
+  end
+
+  def test_wait_write
+    @ep.add(@wr, Epoll::OUT | Epoll::IN)
+    i = 0
+    nr = @ep.wait(nil, 0) do |flags, obj|
+      assert_equal Epoll::OUT, flags
+      assert_equal obj, @wr
+      i += 1
+    end
+    assert_equal 1, nr
+    assert_equal 1, i
+  end
+
+  def test_wait_write_blocked
+    begin
+      @wr.write_nonblock('.' * 65536)
+    rescue Errno::EAGAIN
+      break
+    end while true
+    @ep.add(@wr, Epoll::OUT | Epoll::IN)
+    i = 0
+    assert_equal 0, @ep.wait(nil, 0) { |flags,event| assert false }
+  end
+
+  def test_selectable
+    tmp = nil
+    @ep.add @rd, Epoll::IN
+    thr = Thread.new { tmp = IO.select([ @ep ]) }
+    thr.join 0.01
+    assert_nil tmp
+    @wr.write '.'
+    thr.join
+    assert_equal([[@ep],[],[]], tmp)
+  end
+
+  def test_new_no_cloexec
+    @ep.close
+    io = Epoll.new(0).to_io
+    assert((io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC) == 0)
+  end
+
+  def test_new_cloexec
+    @ep.close
+    io = Epoll.new(Epoll::CLOEXEC).to_io
+    assert((io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC) == Fcntl::FD_CLOEXEC)
+  end
+
+  def test_new
+    @ep.close
+    io = Epoll.new.to_io
+    assert((io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC) == Fcntl::FD_CLOEXEC)
+  end
+end
author	Eric Wong <normalperson@yhbt.net>	2010-08-21 08:44:08 +0000
committer	Eric Wong <normalperson@yhbt.net>	2010-08-21 08:55:56 +0000
commit	133a7dad4b2179093e5bbb7db6db6c31a51817b7 (patch)
tree	ed4557c41bbf6f9732f190ee47191904e9082cd2
download	sleepy_penguin-133a7dad4b2179093e5bbb7db6db6c31a51817b7.tar.gz