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|
#
# multi-tk.rb - supports multi Tk interpreters
# by Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
require 'tcltklib'
require 'thread'
################################################
# ignore exception on the mainloop
# TclTkLib.mainloop_abort_on_exception = false
TclTkLib.mainloop_abort_on_exception = nil
################################################
# exceptiopn to treat the return value from IP
class MultiTkIp_OK < Exception
def self.send(thred, ret=nil)
thread.raise self.new(ret)
end
def initialize(ret=nil)
super('succeed')
@return_value = ret
end
attr_reader :return_value
alias value return_value
end
MultiTkIp_OK.freeze
################################################
# methods for construction
class MultiTkIp
SLAVE_IP_ID = ['slave'.freeze, '0']
@@IP_TABLE = {}
@@INIT_IP_ENV = [] # table of Procs
@@ADD_TK_PROCS = [] # table of [name, args, body]
@@TK_TABLE_LIST = []
@@TK_CMD_TBL = {}
######################################
@@CB_ENTRY_CLASS = Class.new{|c|
def initialize(ip, cmd)
@ip = ip
@cmd = cmd
end
attr_reader :ip, :cmd
def call(*args)
begin
unless @ip.deleted?
@ip.cb_eval(@cmd, *args)
end
rescue TkCallbackBreak, TkCallbackContinue
fail
rescue Exception
end
end
}
######################################
def _keys2opts(keys)
keys.collect{|k,v| "-#{k} #{v}"}.join(' ')
end
private :_keys2opts
def _check_and_return(thread, exception, wait=3)
# wait to stop the caller thread
return nil unless thread
wait.times{
if thread.stop?
# ready to send exception
thread.raise exception
return thread
end
# wait
Thread.pass
}
# unexpected error
thread.raise RuntimeError, "the thread may not wait for the return value"
return thread
end
######################################
def set_safe_level(safe)
@cmd_queue.enq([@system, 'set_safe_level', safe])
self
end
def self.set_safe_level(safe)
__getip.set_safe_level(safe)
self
end
def _create_receiver_and_watchdog()
# command-procedures receiver
receiver = Thread.new{
loop do
thread, cmd, *args = @cmd_queue.deq
if thread == @system
case cmd
when 'set_safe_level'
begin
$SAFE = args[0]
rescue Exception
nil
end
else
# ignore
end
else
begin
ret = cmd.call(*args)
rescue Exception => e
# raise exception
_check_and_return(thread, e)
else
# no exception
_check_and_return(thread, MultiTkIp_OK.new(ret))
end
end
end
}
# watchdog of receiver
watchdog = Thread.new{
begin
receiver.join
rescue Exception
# ignore all kind of Exception
end
# receiver is dead
loop do
thread, cmd, *args = @cmd_queue.deq
next unless thread
if thread.alive?
if @interp.deleted?
thread.raise RuntimeError, 'the interpreter is already deleted'
else
thread.raise RuntimeError,
'the interpreter no longer receives command procedures'
end
end
end
}
# return threads
[receiver, watchdog]
end
private :_check_and_return, :_create_receiver_and_watchdog
######################################
if self.const_defined? :DEFAULT_MASTER_NAME
name = DEFAULT_MASTER_NAME.to_s
else
name = nil
end
if self.const_defined?(:DEFAULT_MASTER_OPTS) &&
DEFAULT_MASTER_OPTS.kind_of?(Hash)
keys = DEFAULT_MASTER_OPTS
else
keys = {}
end
@@DEFAULT_MASTER = self.allocate
@@DEFAULT_MASTER.instance_eval{
@encoding = []
@tk_windows = {}
@tk_table_list = []
@slave_ip_tbl = {}
unless keys.kind_of? Hash
fail ArgumentError, "expecting a Hash object for the 2nd argument"
end
@interp = TclTkIp.new(name, _keys2opts(keys))
@ip_name = nil
@system = Object.new
@threadgroup = Thread.current.group
@cmd_queue = Queue.new
@cmd_receiver, @receiver_watchdog = _create_receiver_and_watchdog()
@threadgroup.add @cmd_receiver
@threadgroup.add @receiver_watchdog
# NOT enclose @threadgroup for @@DEFAULT_MASTER
@@IP_TABLE[ThreadGroup::Default] = self
@@IP_TABLE[@threadgroup] = self
}
@@DEFAULT_MASTER.freeze # defend against modification
######################################
def self.inherited(subclass)
# trust if on ThreadGroup::Default or @@DEFAULT_MASTER's ThreadGroup
if @@IP_TABLE[Thread.current.group] == @@DEFAULT_MASTER
begin
class << subclass
self.methods.each{|m|
begin
unless m == '__id__' || m == '__send__' || m == 'freeze'
undef_method(m)
end
rescue Exception
# ignore all exceptions
end
}
end
ensure
subclass.freeze
fail SecurityError,
"cannot create subclass of MultiTkIp on a untrusted ThreadGroup"
end
end
end
######################################
SAFE_OPT_LIST = ['accessPath', 'statics', 'nested', 'deleteHook']
def _parse_slaveopts(keys)
name = nil
safe = false
safe_opts = {}
tk_opts = {}
keys.each{|k,v|
if k.to_s == 'name'
name = v
elsif k.to_s == 'safe'
safe = v
elsif SAFE_OPT_LIST.member?(k.to_s)
safe_opts[k] = v
else
tk_opts[k] = v
end
}
[name, safe, safe_opts, tk_opts]
end
private :_parse_slaveopts
def _create_slave_ip_name
name = SLAVE_IP_ID.join
SLAVE_IP_ID[1].succ!
name
end
private :_create_slave_ip_name
######################################
def __check_safetk_optkeys(optkeys)
# based on 'safetk.tcl'
new_keys = {}
optkeys.each{|k,v| new_keys[k.to_s] = v}
# check 'display'
if !new_keys.key?('display')
begin
new_keys['display'] = @interp._eval('winfo screen .')
rescue
if ENV[DISPLAY]
new_keys['display'] = ENV[DISPLAY]
elsif !new_keys.key?('use')
warn "Warning: no screen info or ENV[DISPLAY], so use ':0.0'"
new_keys['display'] = ':0.0'
end
end
end
# check 'use'
if new_keys.key?('use')
# given 'use'
case new_keys['use']
when TkWindow
new_keys['use'] = TkWinfo.id(new_keys['use'])
assoc_display = @interp._eval('winfo screen .')
when /^\..*/
new_keys['use'] = @interp._invoke('winfo', 'id', new_keys['use'])
assoc_display = @interp._invoke('winfo', 'screen', new_keys['use'])
else
begin
pathname = @interp._invoke('winfo', 'pathname', new_keys['use'])
assco_display = @interp._invoke('winfo', 'screen', pathname)
rescue
assoc_display = new_keys['display']
end
end
# match display?
if assoc_display != new_keys['display']
if optkeys.keys?(:display) || optkeys.keys?('display')
fail RuntimeError,
"conflicting 'display'=>#{new_keys['display']} " +
"and display '#{assoc_display}' on 'use'=>#{new_keys['use']}"
else
new_keys['display'] = assoc_display
end
end
end
# return
new_keys
end
private :__check_safetk_optkeys
def __create_safetk_frame(slave_ip, slave_name, app_name, keys)
# display option is used by ::safe::loadTk
loadTk_keys = {}
loadTk_keys['display'] = keys['display']
dup_keys = keys.dup
# keys for toplevel : allow followings
toplevel_keys = {}
['height', 'width', 'background', 'menu'].each{|k|
toplevel_keys[k] = dup_keys.delete(k) if dup_keys.key?(k)
}
toplevel_keys['classname'] = 'SafeTk'
toplevel_keys['screen'] = dup_keys.delete('display')
# other keys used by pack option of container frame
# create toplevel widget
begin
top = TkToplevel.new(toplevel_keys)
rescue NameError
fail unless @interp.safe?
fail SecurityError, "unable create toplevel on the safe interpreter"
end
msg = "Untrusted Ruby/Tk applet (#{slave_name})"
if app_name.kind_of?(String)
top.title "#{app_name} (#{slave_name})"
else
top.title msg
end
# procedure to delete slave interpreter
slave_delete_proc = proc{
unless slave_ip.deleted?
if slave_ip._invoke('info', 'command', '.') != ""
slave_ip._invoke('destroy', '.')
end
slave_ip.delete
end
}
tag = TkBindTag.new.bind('Destroy', slave_delete_proc)
# create control frame
TkFrame.new(top, :bg=>'red', :borderwidth=>3, :relief=>'ridge') {|fc|
fc.bindtags = fc.bindtags.unshift(tag)
TkFrame.new(fc, :bd=>0){|f|
TkButton.new(f,
:text=>'Delete', :bd=>1, :padx=>2, :pady=>0,
:highlightthickness=>0, :command=>slave_delete_proc
).pack(:side=>:right, :fill=>:both)
f.pack(:side=>:right, :fill=>:both, :expand=>true)
}
TkLabel.new(fc, :text=>msg, :padx=>2, :pady=>0,
:anchor=>:w).pack(:side=>:left, :fill=>:both, :expand=>true)
fc.pack(:side=>:bottom, :fill=>:x)
}
# container frame for slave interpreter
dup_keys['fill'] = :both unless dup_keys.key?('fill')
dup_keys['expand'] = true unless dup_keys.key?('expand')
c = TkFrame.new(top, :container=>true).pack(dup_keys)
# return keys
loadTk_keys['use'] = TkWinfo.id(c)
loadTk_keys
end
private :__create_safetk_frame
def __create_safe_slave_obj(safe_opts, app_name, tk_opts)
# safe interpreter
# at present, not enough support for '-deleteHook' option
ip_name = _create_slave_ip_name
slave_ip = @interp.create_slave(ip_name, true)
@interp._eval("::safe::interpInit #{ip_name} "+_keys2opts(safe_opts))
tk_opts = __check_safetk_optkeys(tk_opts)
unless tk_opts.key?('use')
tk_opts = __create_safetk_frame(slave_ip, ip_name, app_name, tk_opts)
end
slave_ip._invoke('set', 'argv0', app_name) if app_name.kind_of?(String)
@interp._eval("::safe::loadTk #{ip_name} #{_keys2opts(tk_opts)}")
@slave_ip_tbl[ip_name] = slave_ip
[slave_ip, ip_name]
end
def __create_trusted_slave_obj(name, keys)
ip_name = _create_slave_ip_name
slave_ip = @interp.create_slave(ip_name, false)
slave_ip._invoke('set', 'argv0', name) if name.kind_of?(String)
slave_ip._invoke('set', 'argv', _keys2opts(keys))
@interp._invoke('load', '', 'Tk', ip_name)
@slave_ip_tbl[ip_name] = slave_ip
[slave_ip, ip_name]
end
######################################
def _create_slave_object(keys={})
ip = MultiTkIp.new_slave(self, keys={})
@slave_ip_tbl[ip.name] = ip
end
######################################
def initialize(master, safeip=true, keys={})
if safeip == nil && !master.master?
fail SecurityError, "slave-ip cannot create master-ip"
end
unless keys.kind_of? Hash
fail ArgumentError, "expecting a Hash object for the 2nd argument"
end
@encoding = []
@tk_windows = {}
@tk_table_list = []
@slave_ip_tbl = {}
name, safe, safe_opts, tk_opts = _parse_slaveopts(keys)
if safeip == nil
# create master-ip
@interp = TclTkIp.new(name, _keys2opts(tk_opts))
@ip_name = nil
else
# create slave-ip
if safeip || master.safe?
@interp, @ip_name = master.__create_safe_slave_obj(safe_opts,
name, tk_opts)
else
@interp, @ip_name = master.__create_trusted_slave_obj(name, tk_opts)
end
@set_alias_proc = proc{|name|
master._invoke('interp', 'alias', @ip_name, name, '', name)
}.freeze
end
@system = Object.new
@threadgroup = ThreadGroup.new
@cmd_queue = Queue.new
@cmd_receiver, @receiver_watchdog = _create_receiver_and_watchdog()
@threadgroup.add @cmd_receiver
@threadgroup.add @receiver_watchdog
@threadgroup.enclose
@@IP_TABLE[@threadgroup] = self
_init_ip_internal(@@INIT_IP_ENV, @@ADD_TK_PROCS)
@@TK_TABLE_LIST.size.times{ @tk_table_list << {} }
self.freeze # defend against modification
end
end
# get target IP
class MultiTkIp
def self.__getip
if Thread.current.group == ThreadGroup::Default
@@DEFAULT_MASTER
else
ip = @@IP_TABLE[Thread.current.group]
unless ip
fail SecurityError,
"cannot call Tk methods on #{Thread.current.inspect}"
end
ip
end
end
end
# aliases of constructor
class << MultiTkIp
alias __new new
private :__new
def new_master(keys={}, &b)
ip = __new(__getip, nil, keys)
ip.eval_proc(&b) if b
ip
end
alias new new_master
def new_slave(keys={}, &b)
ip = __new(__getip, false, keys)
ip.eval_proc(&b) if b
ip
end
alias new_trusted_slave new_master
def new_safe_slave(keys={},&b)
ip = __new(__getip, true, keys)
ip.eval_proc(&b) if b
ip
end
alias new_safeTk new_safe_slave
end
# get info
class MultiTkIp
def inspect
s = self.to_s.chop!
if master?
s << ':master'
else
if @interp.safe?
s << ':safe-slave'
else
s << ':trusted-slave'
end
end
s << '>'
end
def master?
if @ip_name
false
else
true
end
end
def self.master?
__getip.master?
end
def slave?
not master?
end
def self.slave?
end
def alive?
begin
return false unless @cmd_receiver.alive?
return false if @interp.deleted?
return false if @interp._invoke('interp', 'exists', '') == '0'
rescue Exception
return false
end
true
end
def self.alive?
__getip.alive?
end
def path
@ip_name || ''
end
def self.path
__getip.path
end
def ip_name
@ip_name || ''
end
def self.ip_name
__getip.ip_name
end
def to_eval
@ip_name || ''
end
def self.to_eval
__getip.to_eval
end
def slaves(all = false)
@interp._invoke('interp','slaves').split.map!{|name|
if @slave_ip_tbl.key?(name)
@slave_ip_tbl[name]
elsif all
name
else
nil
end
}.compact!
end
def self.slaves(all = false)
__getip.slaves(all)
end
end
# instance methods to treat tables
class MultiTkIp
def _tk_cmd_tbl
MultiTkIp.tk_cmd_tbl.collect{|ent| ent.ip == self }
end
def _tk_windows
@tk_windows
end
def _tk_table_list
@tk_table_list
end
def _init_ip_env(script)
script.call(self)
end
def _add_tk_procs(name, args, body)
return if slave?
@interp._invoke('proc', name, args, body) if args && body
@interp._invoke('interp', 'slaves').split.each{|slave|
@interp._invoke('interp', 'alias', slave, name, '', name)
}
end
def _init_ip_internal(init_ip_env, add_tk_procs)
init_ip_env.each{|script| script.call(self)}
add_tk_procs.each{|name, args, body|
if master?
@interp._invoke('proc', name, args, body) if args && body
else
@set_alias_proc.call(name)
end
}
end
end
# class methods to treat tables
class MultiTkIp
def self.tk_cmd_tbl
@@TK_CMD_TBL
end
def self.tk_windows
__getip._tk_windows
end
def self.tk_object_table(id)
__getip._tk_table_list[id]
end
def self.create_table
id = @@TK_TABLE_LIST.size
@@IP_TABLE.each{|tg, ip|
ip.instance_eval{@tk_table_list << {}}
}
obj = Object.new
@@TK_TABLE_LIST << obj
obj.instance_eval <<-EOD
def self.method_missing(m, *args)
MultiTkIp.tk_object_table(#{id}).send(m, *args)
end
EOD
obj.freeze
return obj
end
def self.init_ip_env(script = Proc.new)
@@INIT_IP_ENV << script
@@IP_TABLE.each{|tg, ip|
ip._init_ip_env(script)
}
end
def self.add_tk_procs(name, args=nil, body=nil)
@@ADD_TK_PROCS << [name, args, body]
@@IP_TABLE.each{|tg, ip|
ip._add_tk_procs(name, args, body)
}
end
def self.init_ip_internal
__getip._init_ip_internal(@@INIT_IP_ENV, @@ADD_TK_PROCS)
end
end
# for callback operation
class MultiTkIp
def self.get_cb_entry(cmd)
@@CB_ENTRY_CLASS.new(__getip, cmd).freeze
end
def cb_eval(cmd, *args)
self.eval_callback{ TkComm._get_eval_string(TkUtil.eval_cmd(cmd, *args)) }
end
end
# evaluate a procedure on the proper interpreter
class MultiTkIp
# instance method
def eval_proc_core(req_val=true, cmd = Proc.new, *args)
# cmd string ==> proc
if cmd.kind_of?(String)
cmd = proc{ TkComm._get_eval_string(TkUtil.eval_cmd(cmd, *args)) }
args = []
end
# on IP thread
if (@cmd_receiver == Thread.current)
return cmd.call(*args)
end
# send cmd to the proc-queue
if req_val
@cmd_queue.enq([Thread.current, cmd, *args])
else
@cmd_queue.enq([nil, cmd, *args])
return nil
end
# wait and get return value by exception
begin
Thread.stop
rescue MultiTkIp_OK => ret
# return value
return ret.value
end
end
private :eval_proc_core
def eval_callback(cmd = Proc.new, *args)
eval_proc_core(false, cmd, *args)
end
def eval_proc(cmd = Proc.new, *args)
eval_proc_core(true, cmd, *args)
end
alias call eval_proc
# class method
def self.eval_proc(cmd = Proc.new, *args)
# class ==> interp object
__getip.eval_proc(cmd, *args)
end
end
# depend on TclTkLib
# all master/slave IPs are controled by only one event-loop
class << MultiTkIp
def mainloop(check_root = true)
TclTkLib.mainloop(check_root)
end
def mainloop_watchdog(check_root = true)
TclTkLib.mainloop_watchdog(check_root)
end
def do_one_event(flag = TclTkLib::EventFlag::ALL)
TclTkLib.do_one_event(flag)
end
def set_eventloop_tick(tick)
TclTkLib.set_eventloop_tick(tick)
end
def get_eventloop_tick
TclTkLib.get_eventloop_tick
end
def set_no_event_wait(tick)
TclTkLib.set_no_event_wait(tick)
end
def get_no_event_wait
TclTkLib.get_no_event_wait
end
def set_eventloop_weight(loop_max, no_event_tick)
TclTkLib.set_eventloop_weight(loop_max, no_event_tick)
end
def get_eventloop_weight
TclTkLib.get_eventloop_weight
end
end
# class methods to delegate to TclTkIp
class << MultiTkIp
def method_missing(id, *args)
__getip.send(id, *args)
end
def make_safe
__getip.make_safe
end
def safe?
__getip.safe?
end
def restart
__getip.restart
end
def _eval(str)
__getip._eval(str)
end
def _invoke(*args)
__getip._invoke(*args)
end
def _toUTF8(str, encoding)
__getip._toUTF8(str, encoding)
end
def _fromUTF8(str, encoding)
__getip._fromUTF8(str, encoding)
end
def _return_value
__getip._return_value
end
end
# depend on TclTkIp
class MultiTkIp
def mainloop(check_root = true, restart_on_dead = true)
unless restart_on_dead
@interp.mainloop(check_root)
else
begin
loop do
@interp.mainloop(check_root)
if check_root
begin
break if @interp._invoke('winfo', 'exists?', '.') == "1"
rescue Exception
break
end
end
end
rescue StandardError
if TclTkLib.mainloop_abort_on_exception != nil
STDERR.print("warning: Tk mainloop on ", @interp.inspect,
" receives ", $!.class.inspect,
" exception (ignore) : ", $!.message, "\n");
end
retry
end
end
end
def make_safe
@interp.make_safe
end
def safe?
@interp.safe?
end
def delete
@interp.delete
end
def deleted?
@interp.deleted?
end
def restart
@interp.restart
end
def _eval(str)
@interp._eval(str)
end
def _invoke(*args)
@interp._invoke(*args)
end
def _toUTF8(str, encoding)
@interp._toUTF8(str, encoding)
end
def _fromUTF8(str, encoding)
@interp._fromUTF8(str, encoding)
end
def _return_value
@interp._return_value
end
end
# interp command support
class MultiTkIp
def _lst2ary(str)
return [] if str == ""
idx = str.index('{')
while idx and idx > 0 and str[idx-1] == ?\\
idx = str.index('{', idx+1)
end
return str.split unless idx
list = str[0,idx].split
str = str[idx+1..-1]
i = -1
brace = 1
str.each_byte {|c|
i += 1
brace += 1 if c == ?{
brace -= 1 if c == ?}
break if brace == 0
}
if i == 0
list.push ''
elsif str[0, i] == ' '
list.push ' '
else
list.push str[0..i-1]
end
list += tk_split_simplelist(str[i+1..-1])
list
end
private :_lst2ary
def _slavearg(slave)
if slave.kind_of?(MultiTkIp)
slave.path
elsif slave.kind_of?(String)
slave
else
cmd_name.to_s
end
end
private :_slavearg
def alias_info(slave, cmd_name)
_lst2ary(@interp._invoke('interp', 'alias', _slavearg(slave), cmd_name))
end
def self.alias_info(slave, cmd_name)
__getip.alias_info(slave, cmd_name)
end
def alias_delete(slave, cmd_name)
@interp._invoke('interp', 'alias', _slavearg(slave), cmd_name, '')
self
end
def self.alias_delete(slave, cmd_name)
__getip.alias_delete(slave, cmd_name)
self
end
def def_alias(slave, new_cmd, org_cmd, *args)
ret = @interp._invoke('interp', 'alias', _slavearg(slave), new_cmd,
'', org_cmd, *args)
(ret == new_cmd)? self: nil
end
def self.def_alias(slave, new_cmd, org_cmd, *args)
ret = __getip.def_alias(slave, new_cmd, org_cmd, *args)
(ret == new_cmd)? self: nil
end
def aliases(slave = '')
_lst2ary(@interp._invoke('interp', 'aliases', _slavearg(slave)))
end
def self.aliases(slave = '')
__getip.aliases(slave)
end
def delete_slaves(*args)
slaves = args.collect{|s| _slavearg(s)}
@interp._invoke('interp', 'delete', *slaves) if slaves.size > 0
self
end
def self.delete_slaves(*args)
__getip.delete_slaves(*args)
self
end
def exist?(slave = '')
ret = @interp._invoke('interp', 'exists', _slavearg(slave))
(ret == '1')? true: false
end
def self.exist?(slave = '')
__getip.exist?(slave)
end
def delete_cmd(slave, cmd)
slave_invoke = @interp._invoke('list', 'rename', cmd, '')
@interp._invoke('interp', 'eval', _slavearg(slave), slave_invoke)
self
end
def self.delete_cmd(slave, cmd)
__getip.delete_cmd(slave, cmd)
self
end
def expose_cmd(slave, cmd, aliasname = nil)
if aliasname
@interp._invoke('interp', 'expose', _slavearg(slave), cmd, aliasname)
else
@interp._invoke('interp', 'expose', _slavearg(slave), cmd)
end
self
end
def self.expose_cmd(slave, cmd, aliasname = nil)
__getip.expose_cmd(slave, cmd, aliasname)
self
end
def hide_cmd(slave, cmd, aliasname = nil)
if aliasname
@interp._invoke('interp', 'hide', _slavearg(slave), cmd, aliasname)
else
@interp._invoke('interp', 'hide', _slavearg(slave), cmd)
end
self
end
def self.hide_cmd(slave, cmd, aliasname = nil)
__getip.hide_cmd(slave, cmd, aliasname)
self
end
def hidden_cmds(slave = '')
_lst2ary(@interp._invoke('interp', 'hidden', _slavearg(slave)))
end
def self.hidden_cmds(slave = '')
__getip.hidden_cmds(slave)
end
def invoke_hidden(slave, cmd, *args)
@interp._invoke('interp', 'invokehidden', _slavearg(slave), cmd, *args)
end
def self.invoke_hidden(slave, cmd, *args)
__getip.invoke_hidden(slave, cmd, *args)
end
def invoke_hidden_on_global(slave, cmd, *args)
@interp._invoke('interp', 'invokehidden', _slavearg(slave),
'-global', cmd, *args)
end
def self.invoke_hidden_on_global(slave, cmd, *args)
__getip.invoke_hidden_on_global(slave, cmd, *args)
end
def mark_trusted(slave = '')
@interp._invoke('interp', 'marktrusted', _slavearg(slave))
self
end
def self.mark_trusted(slave = '')
__getip.mark_trusted(slave)
self
end
def alias_target(aliascmd, slave = '')
@interp._invoke('interp', 'target', _slavearg(slave), aliascmd)
end
def self.alias_target(aliascmd, slave = '')
__getip.alias_target(aliascmd, slave)
end
def share_stdin(dist, src = '')
@interp._invoke('interp', 'share', src, 'stdin', dist)
self
end
def self.share_stdin(dist, src = '')
__getip.share_stdin(dist, src)
self
end
def share_stdout(dist, src = '')
@interp._invoke('interp', 'share', src, 'stdout', dist)
self
end
def self.share_stdout(dist, src = '')
__getip.share_stdout(dist, src)
self
end
def share_stderr(dist, src = '')
@interp._invoke('interp', 'share', src, 'stderr', dist)
self
end
def self.share_stderr(dist, src = '')
__getip.share_stderr(dist, src)
self
end
def transfer_stdin(dist, src = '')
@interp._invoke('interp', 'transfer', src, 'stdin', dist)
self
end
def self.transfer_stdin(dist, src = '')
__getip.transfer_stdin(dist, src)
self
end
def transfer_stdout(dist, src = '')
@interp._invoke('interp', 'transfer', src, 'stdout', dist)
self
end
def self.transfer_stdout(dist, src = '')
__getip.transfer_stdout(dist, src)
self
end
def transfer_stderr(dist, src = '')
@interp._invoke('interp', 'transfer', src, 'stderr', dist)
self
end
def self.transfer_stderr(dist, src = '')
__getip.transfer_stderr(dist, src)
self
end
def share_stdio(dist, src = '')
@interp._invoke('interp', 'share', src, 'stdin', dist)
@interp._invoke('interp', 'share', src, 'stdout', dist)
@interp._invoke('interp', 'share', src, 'stderr', dist)
self
end
def self.share_stdio(dist, src = '')
__getip.share_stdio(dist, src)
self
end
def transfer_stdio(dist, src = '')
@interp._invoke('interp', 'transfer', src, 'stdin', dist)
@interp._invoke('interp', 'transfer', src, 'stdout', dist)
@interp._invoke('interp', 'transfer', src, 'stderr', dist)
self
end
def self.transfer_stdio(dist, src = '')
__getip.transfer_stdio(dist, src)
self
end
end
# encoding convert
class MultiTkIp
# from tkencoding.rb by ttate@jaist.ac.jp
alias __eval _eval
alias __invoke _invoke
def encoding
@encoding[0]
end
def encoding=(enc)
@encoding[0] = enc
end
def _eval(cmd)
if @encoding[0] != nil
_fromUTF8(__eval(_toUTF8(cmd, @encoding[0])), @encoding[0])
else
__eval(cmd)
end
end
def _invoke(*cmds)
if defined?(@encoding[0]) && @encoding[0] != nil
cmds = cmds.collect{|cmd| _toUTF8(cmd, @encoding[0])}
_fromUTF8(__invoke(*cmds), @encoding[0])
else
__invoke(*cmds)
end
end
end
# end of MultiTkIp definition
MultiTkIp.freeze # defend against modification
########################################
# start Tk which depends on MultiTkIp
module TkCore
INTERP = MultiTkIp
end
require 'tk'
|