fd-flexi

fd-flexi streams are flexi streams using fd-gray streams to embed Unix file descriptors in standard Common Lisp streams supporting dynamic external encoding.

fd-flexi:input-stream fd &optional (external-format :utf-8) –> stream

Creates an input flexi stream for file descriptor fd, initially using external-format encoding.

(read-line (fd-flexi:input-stream 0))

fd-flexi:output-stream fd &optional (external-format :utf-8) –> stream

Creates an output flexi stream for file descriptor fd, initially using external-format encoding.

(write-string "Hello world !" (fd-flexi:output-stream 1))

fd-flexi:io-stream fd &optional (external-format :utf-8) –> stream

Creates an input/output flexi stream for file descriptor fd, initially using external-format encoding.

(let ((stream (fd-flexi:io-stream (fcntl:open "file.txt" fcntl:+o-rdwr+))))
  (write-string (read-line stream) stream))

fd-flexi:with-input-stream (var fd &optional (external-format :utf-8)) &body body –> result

Creates an input flexi stream for file descriptor fd, initially using external-format encoding, that will be closed returning from body.

(fd-flexi:with-input-stream (in (fcntl:open "file.txt" fcntl:+o-rdonly+))
  (read-line in))

fd-flexi:with-output-stream (var fd &optional (external-format :utf-8)) &body body –> result

Creates an output flexi stream for file descriptor fd, initially using external-format encoding, that will be closed returning from body.

(fd-flexi:with-output-stream (out (fcntl:open "file.txt" fcntl:+o-wronly+))
  (write-string "Hello world !" out))

fd-flexi:with-io-stream (var fd) &body body –> result

Creates an input/output flexi stream for file descriptor fd, initially using external-format encoding, that will be closed returning from body.

(fd-flexi:with-io-stream (out (fcntl:open "file.txt" fcntl:+o-rdwr+))
  (write-string (read-line stream) stream))