REBOL 3 Concepts: Ports

Pending Revision

This document was written for R2 and has yet to be revised for R3.

Overview

Ports access external series such as files, networks, consoles, events, databases, data encoders, and data decoders. Port data is processed using the standard REBOL series functions as described in the series Chapter.

Ports are used for both input and output. The type of data a port handles depends on how the port is opened. Three types of data are possible:

String	a series of bytes, converts line breaks (default)
Binary	a series of bytes, no conversion of the data
Block	a series of REBOL values

A port can be opened in one of two buffering modes:

Buffered	all of the data is held in memory (default)
Direct	data is not held in memory

In addition, a port can be opened with:

Wait	port will wait for data (default)
No-wait	port will not wait for data