From 2eb887d9cc4f0c799a271104c669cabdc0f5ac5e Mon Sep 17 00:00:00 2001
From: Denis Knauf <Denis.Knauf@gmail.com>
Date: Sun, 28 Mar 2010 14:33:49 +0200
Subject: [PATCH] Cache added, Main created

---
 lib/logan/cache.rb    | 79 +++++++++++++++++++++++++++++++++++++++++++
 lib/logan/inc/main.rb | 47 +++++++++++++++++++++++++
 2 files changed, 126 insertions(+)
 create mode 100644 lib/logan/cache.rb
 create mode 100644 lib/logan/inc/main.rb

diff --git a/lib/logan/cache.rb b/lib/logan/cache.rb
new file mode 100644
index 0000000..16c9cbc
--- /dev/null
+++ b/lib/logan/cache.rb
@@ -0,0 +1,79 @@
+
+class Cache
+	READ = 1
+	WRITE = 2
+	attr_reader :source, :data
+
+	def initialize source, type = nil, data = nil
+		type ||= READ | WRITE
+		@source, @data, self.type = source, data || {}, type
+	end
+
+	def flush!
+		@data.each {|k,v| @obj[k] = v }
+		@data = {}
+	end
+
+	def dget k
+		@data[k] ||= @obj[k]
+	end
+
+	def oget k
+		@data[k] || @obj[k]
+	end
+
+	def dset k, v
+		@data[k] ||= v
+	end
+
+	def oset k, v
+		@obj[k] = v
+	end
+
+	def type= type
+		self.read, self.write = type & 1 > 0, type & 2 > 0
+		type
+	end
+
+	def read_cache= type
+		@type &= ~ (type ? 0 : 1)
+		define_singleton_method :[], type ? :oget, :dget
+	end
+
+	def write_cache= type
+		@type &= ~ (type ? 0 : 2)
+		define_singleton_method :[], type ? :oset, :dset
+	end
+
+	#include Enumerable
+	#def each &e
+		#return Enumerator.new self, :each  unless e
+		#flush!
+		#@obj.each &e
+		#self
+	#end
+end
+
+class AutoValueConvertHash
+	include Enumerable
+
+	def initialize obj, encode = nil, each = nil, &decode
+		@object, @encoder = obj, decode.nil? ? encode || Marshal.method( :dump) : nil,
+		@each = each || obj.method( :each)  rescue NameError
+		@decode = decode || Marshal.method( :restore)
+	end
+
+	def [] k
+		decode.call @object[k]
+	end
+
+	def []= k, v
+		@object[k] = encode.call v
+	end
+
+	def each *paras
+		@each.call *paras do |k, v|
+			yield k, decode( v)
+		end
+	end
+end
diff --git a/lib/logan/inc/main.rb b/lib/logan/inc/main.rb
new file mode 100644
index 0000000..0d9cd0d
--- /dev/null
+++ b/lib/logan/inc/main.rb
@@ -0,0 +1,47 @@
+
+require 'sbdb'
+require 'safebox'
+require 'robustserver'
+
+module LogAn::Inc
+	class Main < RobustServer
+		def config db, type = nil
+			type ||= 1+4
+			ret = @etc[ 'inc.cnf', db, SBDB::RDONLY]
+			ret = AutoValueConvertHash.new ret  if type&4 > 0
+			ret = Cache.new ret, type&3  if type&3 > 0
+			ret
+		end
+
+		def initialize conf
+			super
+			@conf = conf
+			@logs = LogAn::Loglines.new 'logs'
+			etc = @conf[:etc] || 'etc'
+			Dir.mkdir etc  rescue Errno::EEXIST
+			@etc = SBDB::Env.new( etc,
+					log_config: SBDB::Env::LOG_IN_MEMORY | SBDB::Env::LOG_AUTO_REMOVE,
+					flags: SBDB::CREATE | SBDB::Env::INIT_TXN | Bdb::DB_INIT_MPOOL)
+			@hosts = config 'hosts'
+			@files = config 'files'
+			@fileparser = config 'fileparser'
+			@serv = LogAn::Inc.new :sock => TCPServer.new( *@conf[:server])
+			@sigs[:INT] = @sigs[:TERM] = method(:shutdown)
+		end
+
+		def at_exit
+			@logs and @logs.close
+			@etc and @etc.close
+		end
+
+		def shutdown s = nil
+			$stderr.puts [:signal, s, Signal[s]].inspect  if s
+			@serv.close
+			exit 0
+		end
+
+		def run
+			@serv.run
+		end
+	end
+end