DD Reference Manual

Db

Class Db: implements a simple data buffer in shared memory.

dbLimits

dbLimits encapsulates the maximum limits of the Db class.

DD

Abstract class of the DD system.

DDdemon

Class DDdemon: class that encapsulates the dd demon, which listens on a socket for a TCP/IP network connection from a DD client.

DD_Exception

Class DD_Exception: Exceptions that can be thrown by the DD system calls.

DD_factory

Class DD_factory: Class to handle create and delete of DDs.

DD_garbage_d

Class DD_garbage_d: class that encapsulates the DD garbage demon process.

DDserver

The DDserver is the server on the same host as the DD pool, which talks to a remote DD client.

DDspecs

Class that specificates all configuration parameters of a DD system.

ddnCmd

Communication class between DDserver and client.

ddnFifo_entry

Aggregated class that transfers a Fifo_entry over tcp/ip.

Fifo

Class Fifo: implements Fifos in shared memory that allows user processes to access for read and write.

Fifo_entry

Class Fifo_entry: Fifo_entries are the objects that the DD fifos contain and they represent the data in the data buffer.

Fifo_iterator

Class Fifo_iterator: Enables access to the Fifos while hiding their implementation in shared memory.

FifoLimits

Class FifoLimits encapsulates the maximum values for the fifos.

Fifo_mode

Class Fifo_mode that determines the mode of a fifo from the user's point of view.

FifoSpecs

Class that specificates all configuration parameters of a Fifo in the DD pool.

Fifo_system

Class Fifo_system: Class that comprises the individual fifos.

lDD

Class for a local (same host) DD system.

rDD

Subtype of the DD class that implements a DD system, which is located on a remote host.

Note: Read the section on the class design before you read this section. This will help you understand the relation between the various pieces of the DD system.

Alphabetic index Hierarchy of classes