| Address | A network Address (e.g., an IPv4 or IPv6 Address and port, or a UNIX-domain Socket path) |
| Atomic | An Atomic integer class |
| Callback< R, T1, T2, etc > | Generic callbacks |
| Condition | A Condition variable |
| constbuf | An immutable data buffer |
| databuf | A mutable data buffer |
| Debug | An internal class used to implement the debugging framework |
| dynbuf | A dynamically allocated, reference-counted mutable data buffer |
| Guard< Lock > | A class which acquires a lock on creating and destroys it on destruction |
| IMessage | |
| InetAddress | An IP Address and port |
| IOEventLoop | An event loop that multiplexes a set of handlers |
| IOHandle | A reference-counted I/O handle (descriptor) |
| IOHandler | A handler that receives notifications on events on a file descriptor |
| ISerial | An ISerial is analogous to an ObjectInputStream in Java |
| ISerialData | |
| ISerialString | |
| LengthHeader | A struct containing only an integer which may be used as a header for the MsgHandler class |
| MsgHandler< Header, Lock > | A handler which reads and writes messages, each with a fixed-size message described by the struct Header |
| Mutex | A non-recusive mutual-exclusion lock |
| NetHandler< Lock > | A handler which buffers incoming and outgoing data |
| OMessage | |
| OSerial | An OSerial is analogous to an ObjectOutputStream in Java |
| OSerialStream | |
| OSerialString | |
| ptr< T > | A threadsafe reference-counting smart pointer class |
| result< T > | |
| seda_clock_thread | A Thread that may be used as a clock for a group of SEDA stages |
| seda_stage_base | Base class for all stages in a SEDA (staged, event-driven application) decomposition |
| SEDAStage< In, void > | A stage in a SEDA (staged, event-driven application) decomposition |
| Socket | A network Socket descriptor |
| Status | A tuple comprising a boolean "good" flag, and a human-readable string that is a reason for failure (or success; but usually failure) |
| TCPAcceptor< T, Arg > | A service which creates a server Socket on a local port and waits for connections |
| TCPSocket | A TCP Socket descriptor |
| TermHandler | GNU Readline-based terminal input/output handler, providing command completion and history |
| Thread | A Thread of control |
| Threaded< T > | A Thread of control for an object with a run() method |
| Time | A class encapsulating a duration or a point in time |
| Timer | An object that may be attached to an event loop to cause its fire() method to be called at a particular time |
| TQueue< T > | A threadsafe queue class much like an STL queue |