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bigdecimal	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
cgi	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
date	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
digest	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
dl	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
drb	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
io	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
irb	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
net	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
openssl	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
optparse	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
racc	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rdoc	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rexml	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rinda	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rss	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
runit	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
shell	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
soap	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
test	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
uri	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
webrick	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
wsdl	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
x86_64-linux	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
xmlrpc	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
xsd	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
yaml	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
English.rb	5.6 KB	-rw-r--r--	2007-02-13 02:31
Env.rb	274 B	-rw-r--r--	2007-02-13 02:31
abbrev.rb	2.5 KB	-rw-r--r--	2007-02-13 02:31
base64.rb	3.37 KB	-rw-r--r--	2007-07-16 19:17
benchmark.rb	17.73 KB	-rw-r--r--	2008-02-10 18:54
cgi-lib.rb	6.89 KB	-rw-r--r--	2007-02-13 02:31
cgi.rb	73.74 KB	-rw-r--r--	2009-12-14 06:10
complex.rb	12.84 KB	-rw-r--r--	2009-08-03 10:29
csv.rb	24.46 KB	-rw-r--r--	2007-02-13 02:31
date.rb	53.02 KB	-rw-r--r--	2010-06-08 09:15
date2.rb	128 B	-rw-r--r--	2007-02-13 02:31
debug.rb	20.61 KB	-rw-r--r--	2007-02-13 02:31
delegate.rb	8.81 KB	-rw-r--r--	2009-07-16 05:05
digest.rb	1.12 KB	-rw-r--r--	2007-07-28 04:10
drb.rb	19 B	-rw-r--r--	2007-02-13 02:31
e2mmap.rb	4.04 KB	-rw-r--r--	2007-02-13 02:31
erb.rb	21.38 KB	-rw-r--r--	2009-02-23 21:14
eregex.rb	487 B	-rw-r--r--	2007-02-13 02:31
expect.rb	633 B	-rw-r--r--	2008-02-18 04:47
fileutils.rb	42.23 KB	-rw-r--r--	2011-05-21 02:59
finalize.rb	5.38 KB	-rw-r--r--	2007-02-13 02:31
find.rb	1.84 KB	-rw-r--r--	2007-02-13 02:31
forwardable.rb	6.16 KB	-rw-r--r--	2008-06-06 12:35
ftools.rb	6.17 KB	-rw-r--r--	2007-02-13 02:31
generator.rb	8.1 KB	-rw-r--r--	2008-04-10 15:22
getoptlong.rb	14.88 KB	-rw-r--r--	2007-02-13 02:31
getopts.rb	2.25 KB	-rw-r--r--	2007-02-13 02:31
gserver.rb	6.43 KB	-rw-r--r--	2007-02-13 02:31
importenv.rb	590 B	-rw-r--r--	2007-02-13 02:31
ipaddr.rb	21.96 KB	-rw-r--r--	2008-07-12 19:38
irb.rb	7.43 KB	-rw-r--r--	2009-08-09 13:14
jcode.rb	4.3 KB	-rw-r--r--	2007-02-13 02:31
kconv.rb	8.12 KB	-rw-r--r--	2007-02-13 02:31
logger.rb	17.59 KB	-rw-r--r--	2011-05-30 06:38
mailread.rb	1.28 KB	-rw-r--r--	2007-02-13 02:31
mathn.rb	5.42 KB	-rw-r--r--	2007-02-13 02:31
matrix.rb	27.21 KB	-rw-r--r--	2009-01-24 18:32
md5.rb	411 B	-rw-r--r--	2007-03-06 13:39
mkmf.rb	50.65 KB	-rw-r--r--	2010-12-04 10:04
monitor.rb	7.93 KB	-rw-r--r--	2009-11-25 11:15
mutex_m.rb	2.07 KB	-rw-r--r--	2007-02-13 02:31
observer.rb	5.15 KB	-rw-r--r--	2007-02-13 02:31
open-uri.rb	20.49 KB	-rw-r--r--	2007-10-08 14:46
open3.rb	2.1 KB	-rw-r--r--	2009-12-14 07:58
openssl.rb	575 B	-rw-r--r--	2010-11-22 10:51
optparse.rb	47.12 KB	-rw-r--r--	2009-02-20 15:13
ostruct.rb	3.35 KB	-rw-r--r--	2009-05-26 16:36
parsearg.rb	1.55 KB	-rw-r--r--	2007-02-13 02:31
parsedate.rb	1.33 KB	-rw-r--r--	2007-02-13 02:31
pathname.rb	29.39 KB	-rw-r--r--	2010-11-23 11:51
ping.rb	1.48 KB	-rw-r--r--	2007-02-13 02:31
pp.rb	15.97 KB	-rw-r--r--	2007-06-07 13:36
prettyprint.rb	18.33 KB	-rw-r--r--	2007-02-16 23:23
profile.rb	90 B	-rw-r--r--	2007-02-13 02:31
profiler.rb	1.59 KB	-rw-r--r--	2007-02-13 02:31
pstore.rb	11.15 KB	-rw-r--r--	2008-06-06 12:35
rational.rb	12.05 KB	-rw-r--r--	2010-06-08 09:32
readbytes.rb	835 B	-rw-r--r--	2007-02-13 02:31
resolv-replace.rb	1.55 KB	-rw-r--r--	2008-08-08 06:28
resolv.rb	56.83 KB	-rw-r--r--	2010-12-23 06:52
rss.rb	504 B	-rw-r--r--	2007-10-21 15:49
rubyunit.rb	180 B	-rw-r--r--	2007-02-13 02:31
scanf.rb	20.63 KB	-rw-r--r--	2009-01-20 06:53
securerandom.rb	4.27 KB	-rw-r--r--	2011-12-10 15:47
set.rb	27.08 KB	-rw-r--r--	2008-06-09 13:50
sha1.rb	418 B	-rw-r--r--	2007-03-06 13:39
shell.rb	4.66 KB	-rw-r--r--	2007-02-13 02:31
shellwords.rb	3.99 KB	-rw-r--r--	2008-03-21 16:46
singleton.rb	8.08 KB	-rw-r--r--	2008-07-03 15:44
sync.rb	6.09 KB	-rw-r--r--	2009-02-19 20:11
tempfile.rb	4.86 KB	-rw-r--r--	2008-04-21 14:13
thread.rb	104 B	-rw-r--r--	2007-02-13 23:09
thwait.rb	4.32 KB	-rw-r--r--	2010-06-08 11:38
time.rb	31.58 KB	-rw-r--r--	2008-06-06 12:35
timeout.rb	3 KB	-rw-r--r--	2010-06-08 10:54
tmpdir.rb	3.69 KB	-rw-r--r--	2009-01-26 05:42
tracer.rb	2.73 KB	-rw-r--r--	2007-02-13 02:31
tsort.rb	7.99 KB	-rw-r--r--	2007-02-13 02:31
un.rb	4.54 KB	-rw-r--r--	2007-02-13 02:31
uri.rb	710 B	-rw-r--r--	2008-04-15 14:11
weakref.rb	2.68 KB	-rw-r--r--	2007-02-13 02:31
webrick.rb	811 B	-rw-r--r--	2007-02-13 02:31
yaml.rb	12.36 KB	-rw-r--r--	2008-04-19 16:15

Rename

#
#   sync.rb - 2 phase lock with counter
#   	$Release Version: 1.0$
#   	$Revision: 22457 $
#   	$Date: 2009-02-20 01:41:12 +0900 (Fri, 20 Feb 2009) $
#   	by Keiju ISHITSUKA(keiju@ishitsuka.com)
#
# --
#  Sync_m, Synchronizer_m
#  Usage:
#   obj.extend(Sync_m)
#   or
#   class Foo
#	include Sync_m
#	:
#   end
#
#   Sync_m#sync_mode
#   Sync_m#sync_locked?, locked?
#   Sync_m#sync_shared?, shared?
#   Sync_m#sync_exclusive?, sync_exclusive?
#   Sync_m#sync_try_lock, try_lock
#   Sync_m#sync_lock, lock
#   Sync_m#sync_unlock, unlock
#
#   Sync, Synchronicer:
#	include Sync_m
#   Usage:
#   sync = Sync.new
#
#   Sync#mode
#   Sync#locked?
#   Sync#shared?
#   Sync#exclusive?
#   Sync#try_lock(mode) -- mode = :EX, :SH, :UN
#   Sync#lock(mode)     -- mode = :EX, :SH, :UN
#   Sync#unlock
#   Sync#synchronize(mode) {...}
#   
#

unless defined? Thread
  fail "Thread not available for this ruby interpreter"
end

module Sync_m
  RCS_ID='-$Header$-'
  
  # lock mode
  UN = :UN
  SH = :SH
  EX = :EX
  
  # exceptions
  class Err < StandardError
    def Err.Fail(*opt)
      Thread.critical = false
      fail self, sprintf(self::Message, *opt)
    end
    
    class UnknownLocker < Err
      Message = "Thread(%s) not locked."
      def UnknownLocker.Fail(th)
	super(th.inspect)
      end
    end
    
    class LockModeFailer < Err
      Message = "Unknown lock mode(%s)"
      def LockModeFailer.Fail(mode)
	if mode.id2name
	  mode = id2name
	end
	super(mode)
      end
    end
  end
  
  def Sync_m.define_aliases(cl)
    cl.module_eval %q{
      alias locked? sync_locked?
      alias shared? sync_shared?
      alias exclusive? sync_exclusive?
      alias lock sync_lock
      alias unlock sync_unlock
      alias try_lock sync_try_lock
      alias synchronize sync_synchronize
    }
  end
  
  def Sync_m.append_features(cl)
    super
    unless cl.instance_of?(Module)
      # do nothing for Modules
      # make aliases and include the proper module.
      define_aliases(cl)
    end
  end
  
  def Sync_m.extend_object(obj)
    super
    obj.sync_extended
  end

def sync_extended
    unless (defined? locked? and
	    defined? shared? and
	    defined? exclusive? and
	    defined? lock and
	    defined? unlock and
	    defined? try_lock and
	    defined? synchronize)
      Sync_m.define_aliases(class<<self;self;end)
    end
    sync_initialize
  end

# accessing
  def sync_locked?
    sync_mode != UN
  end
  
  def sync_shared?
    sync_mode == SH
  end
  
  def sync_exclusive?
    sync_mode == EX
  end
  
  # locking methods.
  def sync_try_lock(mode = EX)
    return unlock if mode == UN
    
    Thread.critical = true
    ret = sync_try_lock_sub(mode)
    Thread.critical = false
    ret
  end
  
  def sync_lock(m = EX)
    return unlock if m == UN

until (Thread.critical = true; sync_try_lock_sub(m))
      if sync_sh_locker[Thread.current]
	sync_upgrade_waiting.push [Thread.current, sync_sh_locker[Thread.current]]
	sync_sh_locker.delete(Thread.current)
      else
	sync_waiting.push Thread.current
      end
      Thread.stop
    end
    Thread.critical = false
    self
  end
  
  def sync_unlock(m = EX)
    Thread.critical = true
    if sync_mode == UN
      Thread.critical = false
      Err::UnknownLocker.Fail(Thread.current)
    end
    
    m = sync_mode if m == EX and sync_mode == SH
    
    runnable = false
    case m
    when UN
      Thread.critical = false
      Err::UnknownLocker.Fail(Thread.current)
      
    when EX
      if sync_ex_locker == Thread.current
	if (self.sync_ex_count = sync_ex_count - 1) == 0
	  self.sync_ex_locker = nil
	  if sync_sh_locker.include?(Thread.current)
	    self.sync_mode = SH
	  else
	    self.sync_mode = UN
	  end
	  runnable = true
	end
      else
	Err::UnknownLocker.Fail(Thread.current)
      end
      
    when SH
      if (count = sync_sh_locker[Thread.current]).nil?
	Err::UnknownLocker.Fail(Thread.current)
      else
	if (sync_sh_locker[Thread.current] = count - 1) == 0 
	  sync_sh_locker.delete(Thread.current)
	  if sync_sh_locker.empty? and sync_ex_count == 0
	    self.sync_mode = UN
	    runnable = true
	  end
	end
      end
    end
    
    if runnable
      if sync_upgrade_waiting.size > 0
	for k, v in sync_upgrade_waiting
	  sync_sh_locker[k] = v
	end
	wait = sync_upgrade_waiting
	self.sync_upgrade_waiting = []
	Thread.critical = false
	
	for w, v in wait
	  w.run
	end
      else
	wait = sync_waiting
	self.sync_waiting = []
	Thread.critical = false
	for w in wait
	  w.run
	end
      end
    end
    
    Thread.critical = false
    self
  end
  
  def sync_synchronize(mode = EX)
    begin
      sync_lock(mode)
      yield
    ensure
      sync_unlock
    end
  end

attr :sync_mode, true
    
  attr :sync_waiting, true
  attr :sync_upgrade_waiting, true
  attr :sync_sh_locker, true
  attr :sync_ex_locker, true
  attr :sync_ex_count, true
    
  private

def sync_initialize
    @sync_mode = UN
    @sync_waiting = []
    @sync_upgrade_waiting = []
    @sync_sh_locker = Hash.new
    @sync_ex_locker = nil
    @sync_ex_count = 0
  end

def initialize(*args)
    sync_initialize
    super
  end
    
  def sync_try_lock_sub(m)
    case m
    when SH
      case sync_mode
      when UN
	self.sync_mode = m
	sync_sh_locker[Thread.current] = 1
	ret = true
      when SH
	count = 0 unless count = sync_sh_locker[Thread.current]
	sync_sh_locker[Thread.current] = count + 1
	ret = true
      when EX
	# in EX mode, lock will upgrade to EX lock
	if sync_ex_locker == Thread.current
	  self.sync_ex_count = sync_ex_count + 1
	  ret = true
	else
	  ret = false
	end
      end
    when EX
      if sync_mode == UN or
	sync_mode == SH && sync_sh_locker.size == 1 && sync_sh_locker.include?(Thread.current) 
	self.sync_mode = m
	self.sync_ex_locker = Thread.current
	self.sync_ex_count = 1
	ret = true
      elsif sync_mode == EX && sync_ex_locker == Thread.current
	self.sync_ex_count = sync_ex_count + 1
	ret = true
      else
	ret = false
      end
    else
      Thread.critical = false
      Err::LockModeFailer.Fail mode
    end
    return ret
  end
end
Synchronizer_m = Sync_m

class Sync
  #Sync_m.extend_class self
  include Sync_m
    
  def initialize
    super
  end
    
end
Synchronizer = Sync