diff options
Diffstat (limited to 'activerecord')
3 files changed, 70 insertions, 52 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb index 6bb072dd73..19b7821494 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb @@ -149,57 +149,67 @@ module ActiveRecord end def begin_transaction(options = {}) - run_commit_callbacks = !current_transaction.joinable? - transaction = - if @stack.empty? - RealTransaction.new(@connection, options, run_commit_callbacks: run_commit_callbacks) - else - SavepointTransaction.new(@connection, "active_record_#{@stack.size}", options, - run_commit_callbacks: run_commit_callbacks) - end + @connection.lock.synchronize do + run_commit_callbacks = !current_transaction.joinable? + transaction = + if @stack.empty? + RealTransaction.new(@connection, options, run_commit_callbacks: run_commit_callbacks) + else + SavepointTransaction.new(@connection, "active_record_#{@stack.size}", options, + run_commit_callbacks: run_commit_callbacks) + end - @stack.push(transaction) - transaction + @stack.push(transaction) + transaction + end end def commit_transaction - transaction = @stack.last + @connection.lock.synchronize do + transaction = @stack.last - begin - transaction.before_commit_records - ensure - @stack.pop - end + begin + transaction.before_commit_records + ensure + @stack.pop + end - transaction.commit - transaction.commit_records + transaction.commit + transaction.commit_records + end end def rollback_transaction(transaction = nil) - transaction ||= @stack.pop - transaction.rollback - transaction.rollback_records + @connection.lock.synchronize do + transaction ||= @stack.pop + transaction.rollback + transaction.rollback_records + end end def within_new_transaction(options = {}) - transaction = begin_transaction options - yield - rescue Exception => error - if transaction - rollback_transaction - after_failure_actions(transaction, error) - end - raise - ensure - unless error - if Thread.current.status == "aborting" - rollback_transaction if transaction - else - begin - commit_transaction - rescue Exception - rollback_transaction(transaction) unless transaction.state.completed? - raise + @connection.lock.synchronize do + begin + transaction = begin_transaction options + yield + rescue Exception => error + if transaction + rollback_transaction + after_failure_actions(transaction, error) + end + raise + ensure + unless error + if Thread.current.status == "aborting" + rollback_transaction if transaction + else + begin + commit_transaction + rescue Exception + rollback_transaction(transaction) unless transaction.state.completed? + raise + end + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 96083e6519..85d6fbe8b3 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -74,7 +74,7 @@ module ActiveRecord SIMPLE_INT = /\A\d+\z/ attr_accessor :visitor, :pool - attr_reader :schema_cache, :owner, :logger, :prepared_statements + attr_reader :schema_cache, :owner, :logger, :prepared_statements, :lock alias :in_use? :owner def self.type_cast_config_to_integer(config) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 0ad114165e..7ae9bd9a5f 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -239,7 +239,9 @@ module ActiveRecord # Is this connection alive and ready for queries? def active? - @connection.query "SELECT 1" + @lock.synchronize do + @connection.query "SELECT 1" + end true rescue PG::Error false @@ -247,26 +249,32 @@ module ActiveRecord # Close then reopen the connection. def reconnect! - super - @connection.reset - configure_connection + @lock.synchronize do + super + @connection.reset + configure_connection + end end def reset! - clear_cache! - reset_transaction - unless @connection.transaction_status == ::PG::PQTRANS_IDLE - @connection.query "ROLLBACK" + @lock.synchronize do + clear_cache! + reset_transaction + unless @connection.transaction_status == ::PG::PQTRANS_IDLE + @connection.query "ROLLBACK" + end + @connection.query "DISCARD ALL" + configure_connection end - @connection.query "DISCARD ALL" - configure_connection end # Disconnects from the database if already connected. Otherwise, this # method does nothing. def disconnect! - super - @connection.close rescue nil + @lock.synchronize do + super + @connection.close rescue nil + end end def native_database_types #:nodoc: |