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16.3.2.1 File-descriptors

— Type: sb-posix:file-descriptor

A fixnum designating a native file descriptor.

sb-sys:make-fd-stream can be used to construct a file-stream associated with a native file descriptor.

Note that mixing I/O operations on a file-stream with operations directly on its descriptor may produce unexpected results if the stream is buffered.

— Type: sb-posix:file-descriptor-designator

Designator for a file-descriptor: either a fixnum designating itself, or a file-stream designating the underlying file-descriptor.

— Function: sb-posix:file-descriptor file-descriptor

Converts file-descriptor-designator into a file-descriptor.