BDB::DB supports transactions now. Version 0.0.8

Rakefile

@@ -12,7 +12,7 @@ begin
     gem.authors = ["Denis Knauf"]
     gem.files = ["README.md", "VERSION", "lib/**/*.rb", "test/**/*.rb"]
     gem.require_paths = ["lib"]
-		gem.add_dependency 'bdb'
+		gem.add_dependency 'dk-bdb'
   end
   Jeweler::GemcutterTasks.new
 rescue LoadError

VERSION

@@ -1 +1 @@
-0.0.7
+0.0.8

lib/sbdb.rb

@@ -2,6 +2,7 @@ require 'bdb'
 require 'sbdb/environment'
 require 'sbdb/db'
 require 'sbdb/cursor'
+require 'sbdb/transaction'
 
 module SBDB
 	CREATE      = Bdb::DB_CREATE

lib/sbdb/db.rb

@@ -21,19 +21,29 @@ module SBDB
 		def close( f = nil)  @db.close f || 0  end
 		def cursor( &e)  Cursor.new self, &e  end
 
-		def [] k
+		def at k, txn = nil
-			@db.get nil, k.nil? ? nil : k.to_s, nil, 0
+			@db.get _txn(txn), k.nil? ? nil : k.to_s, nil, 0
 		rescue Bdb::KeyEmpty
 			return nil
 		end
+		alias [] at
+
+		def put k, v, txn = nil
+			if v.nil?
+				@db.del _txn(txn), k.to_s, 0
+			else
+				@db.put _txn(txn), k.nil? ? nil : k.to_s, v.to_s, 0
+			end
+		end
 		
 		def []= k, v
-			if v.nil?
+			put k, v
-				@db.del nil, k.to_s, 0
-			else
-				@db.put nil, k.nil? ? nil : k.to_s, v.to_s, 0
 		end
+
+		def delete k, txn = nil
+			@db.del _txn(txn), k.to_s
 		end
+		alias del delete
 
 		class << self
 			def new *p, &e
@@ -41,13 +51,24 @@ module SBDB
 				return x  unless e
 				begin e.call x
 				ensure
-					x.sync
+					begin x.sync
-					x.close
+					rescue Object
+						$stderr.puts [$!.class,$!,$!.backtrace].inspect
+					end
+					begin x.close
+					rescue Object
+						$stderr.puts [$!.class,$!,$!.backtrace].inspect
+					end
 				end
 			end
 			alias open new
 		end
 
+		def _txn t
+			t ||= @txn
+			t && t.bdb_object
+		end
+
 		def initialize file, *args
 			opts = ::Hash === args.last ? args.pop : {}
 			opts = {:name => args[0], :type => args[1], :flags => args[2], :mode => args[3], :env => args[4]}.update opts
@@ -55,7 +76,7 @@ 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
+			txn = opts[:txn]
 			begin
 				@db.open txn && txn.bdb_object, file, opts[:name], opts[:type], opts[:flags] || 0, opts[:mode] || 0
 			rescue Object
@@ -77,6 +98,10 @@ module SBDB
 			each( k, v) {|k, v| h[ k] = v }
 			h
 		end
+
+		def truncate txn = nil
+			@db.truncate _txn(txn)
+		end
 	end
 
 	class Unknown < DB
@@ -103,8 +128,8 @@ module SBDB
 			super [k].pack('I'), v
 		end
 
-		def push v
+		def push v, txn = nil
-			@db.put nil, "\0\0\0\0", v, Bdb::DB_APPEND
+			@db.put _txn(txn), "\0\0\0\0", v, Bdb::DB_APPEND
 		end
 	end
 	Array = Recno
@@ -119,12 +144,12 @@ module SBDB
 			super [k].pack('I'), v
 		end
 
-		def unshift
+		def unshift txn = nil
-			@db.get nil, "\0\0\0\0", nil, Bdb::DB_CONSUME
+			@db.get _txn(txn), "\0\0\0\0", nil, Bdb::DB_CONSUME
 		end
 
-		def push v
+		def push v, txn = nil
-			@db.put nil, "\0\0\0\0", v, Bdb::DB_APPEND
+			@db.put _txn(txn), "\0\0\0\0", v, Bdb::DB_APPEND
 		end
 	end
 	TYPES[DB::QUEUE] = Queue

lib/sbdb/environment.rb

@@ -1,6 +1,7 @@
 require 'bdb'
 require 'sbdb/weakhash'
 require 'sbdb/db'
+require 'sbdb/transaction'
 
 module SBDB
 	# Environments are for storing one or more databases and are important
@@ -47,7 +48,7 @@ module SBDB
 		end 
 
 		def transaction flags = nil, &e
-			Transaction.new self, flags, &e
+			SBDB::Transaction.new self, flags, &e
 		end
 		alias txn transaction
 
@@ -63,18 +64,24 @@ module SBDB
 			@dbs, @env = WeakHash.new, Bdb::Env.new( 0)
 			@env.log_config opts[:log_config], 1  if opts[:log_config]
 			@env.lg_bsize = opts[:lg_bsize]  if opts[:lg_bsize]
+			@env.lg_max = opts[:lg_max]  if opts[:lg_max]
 			begin @env.open opts[:dir]||'.', opts[:flags]|| INIT_TRANSACTION|CREATE, opts[:mode]||0
 			rescue Object
 				close
 				raise
 			end
-
-			return self  unless block_given?
-
-			begin yield self
-			ensure close
 		end
-			nil
+
+		def self.new *args
+			obj = r = super( *args)
+			begin r = yield obj
+			ensure
+				begin obj.close
+				rescue Object
+					$stderr.puts [$!.class,$!,$!.backtrace].inspect
+				end
+			end  if block_given?
+			r
 		end
 
 		# Close the Environment.

lib/sbdb/weakhash.rb

@@ -16,9 +16,7 @@ class WeakHash
 			end
 		end
 		@reclaim_key = lambda do |key_id|
-			if @key_map.has_key? key_id
+			@cache.delete @key_map.delete(key_id)  if @key_map.has_key? key_id
-				@cache.delete @key_map.delete(key_id)
-			end
 		end
 	end
 

sbdb.gemspec

@@ -5,11 +5,11 @@
 
 Gem::Specification.new do |s|
   s.name = %q{sbdb}
-  s.version = "0.0.7"
+  s.version = "0.0.8"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Denis Knauf"]
-  s.date = %q{2010-03-09}
+  s.date = %q{2010-03-11}
   s.description = %q{Simple Ruby Berkeley DB wrapper library for bdb.}
   s.email = %q{Denis.Knauf@gmail.com}
   s.extra_rdoc_files = [
@@ -29,7 +29,7 @@ Gem::Specification.new do |s|
   s.homepage = %q{http://github.com/DenisKnauf/bdb}
   s.rdoc_options = ["--charset=UTF-8"]
   s.require_paths = ["lib"]
-  s.rubygems_version = %q{1.3.5}
+  s.rubygems_version = %q{1.3.6}
   s.summary = %q{Simple Ruby Berkeley DB}
 
   if s.respond_to? :specification_version then
@@ -37,12 +37,12 @@ Gem::Specification.new do |s|
     s.specification_version = 3
 
     if Gem::Version.new(Gem::RubyGemsVersion) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<bdb>, [">= 0"])
+      s.add_runtime_dependency(%q<dk-bdb>, [">= 0"])
     else
-      s.add_dependency(%q<bdb>, [">= 0"])
+      s.add_dependency(%q<dk-bdb>, [">= 0"])
     end
   else
-    s.add_dependency(%q<bdb>, [">= 0"])
+    s.add_dependency(%q<dk-bdb>, [">= 0"])
   end
 end