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#
#--
# Copyright (c) 2009, John Mettraux, jmettraux@gmail.com
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#++
#
#
# "made in Japan"
#
# jmettraux@gmail.com
#
require 'rufus/tokyo/stats'
module Rufus::Tokyo
#
# A Tokyo Cabinet table, but remote...
#
# require 'rufus/tokyo/tyrant'
# t = Rufus::Tokyo::Tyrant.new('127.0.0.1', 44001)
# t['toto'] = { 'name' => 'toto the first', 'age' => '34' }
# t['toto']
# # => { 'name' => 'toto the first', 'age' => '34' }
#
# Most of the methods of this TyrantTable class are defined in the parent
# class Rufus::Tokyo::Table.
#
class TyrantTable < Table
include TyrantStats
attr_reader :host, :port
#
# Connects to the Tyrant table listening at the given host and port.
#
# You start such a Tyrant with :
#
# ttserver -port 44502 data.tct
#
# and then :
#
# require 'rufus/tokyo/tyrant'
# t = Rufus::Tokyo::TyrantTable.new('127.0.0.1', 44502)
# t['client0'] = { 'name' => 'Heike no Kyomori', 'country' => 'jp' }
# t.close
#
#
# You can start a Tokyo Tyrant and make it listen to a unix socket (not TCP)
# with :
#
# ttserver -host /tmp/table_socket -port 0 data.tct
#
# then :
#
# require 'rufus/tokyo/tyrant'
# t = Rufus::Tokyo::TyrantTable.new('/tmp/table_socket')
# t['client0'] = { 'name' => 'Theodore Roosevelt', 'country' => 'usa' }
# t.close
#
def initialize (host, port=0)
@db = lib.tcrdbnew
@host = host
@port = port
(lib.tcrdbopen(@db, host, port) == 1) ||
raise("couldn't connect to tyrant at #{host}:#{port}")
if self.stat['type'] != 'table'
self.close
raise ArgumentError.new(
"tyrant at #{host}:#{port} is a not table, " +
"use Rufus::Tokyo::Tyrant instead to access it.")
end
end
#
# using the cabinet lib
#
def lib
TyrantLib
end
def transaction #:nodoc#
raise_transaction_nme('transaction')
end
def abort #:nodoc#
raise_transaction_nme('abort')
end
def tranbegin #:nodoc#
raise_transaction_nme('tranbegin')
end
def trancommit #:nodoc#
raise_transaction_nme('trancommit')
end
def tranabort #:nodoc#
raise_transaction_nme('tranabort')
end
#--
# Doesn't work properly, tcrdbmisc doesn't return something leveragable :(
#
#def lget (keys)
# call_misc('getlist', Rufus::Tokyo::List.new(keys))
#end
#++
protected
def raise_transaction_nme (method_name)
raise NoMethodError.new(
"Tyrant tables don't support transactions", method_name)
end
#
# Returns the raw stat string from the Tyrant server.
#
def do_stat
lib.tcrdbstat(@db) # note : this is using tcrdbstat
end
#--
# (see #lget's comment)
#
# wrapping tcadbmisc or tcrdbmisc
# (and taking care of freeing the list_pointer)
#
#def call_misc (function, list_pointer)
# list_pointer = list_pointer.pointer \
# if list_pointer.is_a?(Rufus::Tokyo::List)
# begin
# l = lib.tcrdbmisc(@db, function, 0, list_pointer)
# # opts always to 0 for now
# raise "function '#{function}' failed" unless l
# Rufus::Tokyo::List.new(l).release
# ensure
# Rufus::Tokyo::List.free(list_pointer)
# end
#end
#++
end
end
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