Sockets I/O

Author(s): Francisco Bueno.

Version: 1.11#222 (2004/5/24, 13:8:7 CEST)

Version of last change: 1.11#117 (2003/12/22, 18:58:12 CET)

This module provides two useful predicates for programming with sockets.

• Usage and interface (sockets_io)
• Documentation on exports (sockets_io)

Usage and interface (sockets_io)

Documentation on exports (sockets_io)

PREDICATE: serve_socket/3:

Meta-predicate with arguments: serve_socket(?,pred(1),pred(1)).

Usage: serve_socket(Socket, Server, Handler)

• Description: Handles the streams associated to Socket calling Server on one request of each stream (as Server(Stream)), and Handler(Stream) if the stream is empty (connection closed).
• The following properties should hold at call time: Socket is a socket id. (sockets_io:socket/1) Server is a term which represents a goal, i.e., an atom or a structure. (basic_props:callable/1) Handler is a term which represents a goal, i.e., an atom or a structure. (basic_props:callable/1)

PREDICATE: safe_write/2:

Usage: safe_write(Stream, Term)

• Description: Writes Term to Stream in a way that it is safe for a socket connection on Stream.
• The following properties should hold at call time: Stream is an open stream. (streams_basic:stream/1) Term is any term. (basic_props:term/1)

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