EXT:MAKE-STREAM
Function EXT:MAKE-STREAM
creates a Lisp stream out of an OS file descriptor:
(
EXT:MAKE-STREAM
object
&KEY
:DIRECTION
:ELEMENT-TYPE
:EXTERNAL-FORMAT
:BUFFERED
)
object
designates an OS handle (a file descriptor),
and should be one of the following:
:INPUT
stdin
(0 on UNIX):OUTPUT
stdout
(1 on UNIX):ERROR
stderr
(2 on UNIX)STREAM
FILE-STREAM
or a SOCKET:SOCKET-STREAM
When there are several Lisp STREAM
s backed by the same OS
file descriptor, the behavior may be highly confusing when some of the
Lisp streams are :BUFFERED
. Use FORCE-OUTPUT
for output STREAM
s,
and bulk input for input STREAM
s.
The handle is duplicated (with dup
),
so it is safe to CLOSE
a STREAM
returned by EXT:MAKE-STREAM
.
These notes document CLISP version 2.49 | Last modified: 2010-07-07 |