From 586f239f001afae1a42b7967c553aef8446f9d5a Mon Sep 17 00:00:00 2001
From: Denis Knauf <Denis.Knauf@gmail.com>
Date: Tue, 9 Mar 2010 19:09:22 +0100
Subject: [PATCH] transactions added, not tested

---
 lib/sbdb/db.rb          |  4 +++-
 lib/sbdb/environment.rb | 14 +++++++++++++-
 sbdb.gemspec            |  3 ++-
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/lib/sbdb/db.rb b/lib/sbdb/db.rb
index adede68..2cf2347 100644
--- a/lib/sbdb/db.rb
+++ b/lib/sbdb/db.rb
@@ -14,6 +14,7 @@ module SBDB
 		CONSUME_WAIT = Bdb::DB_CONSUME_WAIT
 
 		attr_reader :home
+		attr_accessor :txn
 		include Enumerable
 		def bdb_object()  @db  end
 		def sync()  @db.sync  end
@@ -54,8 +55,9 @@ module SBDB
 			@home, @db = opts[:env], opts[:env] ? opts[:env].bdb_object.db : Bdb::Db.new
 			opts[:type] = TYPES.index(self.class) || UNKNOWN
 			@db.re_len = opts[:re_len]  if opts[:re_len]
+			txn = opts[:txn] || @txn
 			begin
-				@db.open opts[:txn], file, opts[:name], opts[:type], opts[:flags] || 0, opts[:mode] || 0
+				@db.open txn && txn.bdb_object, file, opts[:name], opts[:type], opts[:flags] || 0, opts[:mode] || 0
 			rescue Object
 				close
 				raise $!
diff --git a/lib/sbdb/environment.rb b/lib/sbdb/environment.rb
index 94c4d63..c14006f 100644
--- a/lib/sbdb/environment.rb
+++ b/lib/sbdb/environment.rb
@@ -17,6 +17,11 @@ module SBDB
 		PRIVATE    = Bdb::DB_PRIVATE
 		SYSTEM_MEM = Bdb::DB_SYSTEM_MEM
 		TXN_NOSYNC = Bdb::DB_TXN_NOSYNC
+		LOG_DIRECT = Bdb::DB_LOG_DIRECT
+		LOG_DSYNC  = Bdb::DB_LOG_DSYNC
+		LOG_AUTO_REMOVE = Bdb::DB_LOG_AUTO_REMOVE
+		LOG_IN_MEMORY = Bdb::DB_LOG_IN_MEMORY
+		LOG_ZERO   = Bdb::DB_LOG_ZERO
 
 		# returns the Bdb-object.
 		def bdb_object()  @env  end
@@ -41,6 +46,11 @@ module SBDB
 			open Unknown, file, *p, &e
 		end 
 
+		def transaction flags = nil, &e
+			Transaction.new flags, &e
+		end
+		alias txn transaction
+
 		# args:
 		#   args[0] => dir
 		#   args[1] => flags
@@ -51,7 +61,9 @@ module SBDB
 			opts = ::Hash === args.last ? args.pop : {}
 			opts = {:dir => args[0], :flags => args[1], :mode => args[2]}.update opts
 			@dbs, @env = WeakHash.new, Bdb::Env.new( 0)
-			@env.log_config = opts[:log_config]  if opts[:log_config]
+			@env.log_config opts[:log_config], 1  if opts[:log_config]
+			p lg_bsize: @env.lg_bsize
+			@env.lg_bsize = 5*2**20  if opts[:lg_bsize]
 			begin @env.open opts[:dir]||'.', opts[:flags]|| INIT_TRANSACTION|CREATE, opts[:mode]||0
 			rescue Object
 				close
diff --git a/sbdb.gemspec b/sbdb.gemspec
index 11e2da4..c36a377 100644
--- a/sbdb.gemspec
+++ b/sbdb.gemspec
@@ -9,7 +9,7 @@ Gem::Specification.new do |s|
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Denis Knauf"]
-  s.date = %q{2010-02-23}
+  s.date = %q{2010-03-09}
   s.description = %q{Simple Ruby Berkeley DB wrapper library for bdb.}
   s.email = %q{Denis.Knauf@gmail.com}
   s.extra_rdoc_files = [
@@ -23,6 +23,7 @@ Gem::Specification.new do |s|
      "lib/sbdb/cursor.rb",
      "lib/sbdb/db.rb",
      "lib/sbdb/environment.rb",
+     "lib/sbdb/transaction.rb",
      "lib/sbdb/weakhash.rb"
   ]
   s.homepage = %q{http://github.com/DenisKnauf/bdb}