scsh-0.5/scsh/aix/fdflags.scm

45 lines
1.1 KiB
Scheme

;;; Flags for open(2) and fcntl(2).
;;; Copyright (c) 1993 by Olin Shivers.
;;; AIX version by Chipsy Sperber
(define-syntax define-open-flags
(syntax-rules ()
((define-errnos form ...)
(begin (define-enum-constant "open" . form) ...))))
(define-open-flags
(read 0)
(write 1)
(read+write 2)
(append 8)
(create #x0100)
(exclusive #x0400)
(no-control-tty #x0800)
(nonblocking #x0004)
(truncate #x0200)
;;; Not POSIX.
(no-delay #x8000)
(sync #x0010))
(define open/access-mask
(bitwise-ior open/read
(bitwise-ior open/write open/read+write)))
;;; These are internal; they are not part of the supported scsh interface.
(define fcntl/close-on-exec 1)
(define fcntl/dupfd 0)
(define fcntl/get-fd-flags 1)
(define fcntl/set-fd-flags 2)
(define fcntl/get-file-flags 3)
(define fcntl/set-file-flags 4)
(define fcntl/get-record-lock 5) ; F_GETLK
(define fcntl/set-record-lock-noblock 6) ; F_SETLK
(define fcntl/set-record-lock 7) ; F_SETLKW
(define lock/read 1) ; F_RDLCK
(define lock/write 2) ; F_WRLCK
(define lock/release 3) ' F_UNLCK