56 lines
1.6 KiB
Scheme
56 lines
1.6 KiB
Scheme
|
;;; Flags for open(2) and fcntl(2).
|
||
|
|
;;; Copyright (c) 1993 by Olin Shivers.
|
||
|
|
;;; Copyright (c) 1994 by Brian D. Carlstrom
|
||
|
|
|
||
|
|
(define-enum-constants open
|
||
|
|
;; POSIX
|
||
|
|
(read #x0000)
|
||
|
|
(write #x0001)
|
||
|
|
(read+write #x0002)
|
||
|
|
(non-blocking #x0004) ; no delay
|
||
|
|
(append #x0008) ; set append mode
|
||
|
|
|
||
|
|
;; BSD4.4-Lite
|
||
|
|
(shared-lock #x0010) ; open with shared file lock
|
||
|
|
(exclusive-lock #x0020) ; open with exclusive file lock
|
||
|
|
(async #x0040) ; signal pgrep when data ready
|
||
|
|
(fsync #x0080) ; synchronus writes
|
||
|
|
|
||
|
|
;; POSIX
|
||
|
|
(create #x0200) ; create if nonexistant
|
||
|
|
(truncate #x0400) ; truncate to zero length
|
||
|
|
(exclusive #x0800) ; error if already exists
|
||
|
|
(no-control-tty #x0000)) ; don't assign controlling terminal
|
||
|
|
|
||
|
|
(define open/access-mask
|
||
|
|
(bitwise-ior open/read
|
||
|
|
(bitwise-ior open/write open/read+write)))
|
||
|
|
|
||
|
|
;;; fcntl() commands
|
||
|
|
(define-enum-constants fcntl
|
||
|
|
(dup-fdes 0) ; F_DUPFD
|
||
|
|
(get-fdes-flags 1) ; F_GETFD
|
||
|
|
(set-fdes-flags 2) ; F_SETFD
|
||
|
|
(get-status-flags 3) ; F_GETFL
|
||
|
|
(set-status-flags 4) ; F_SETFL
|
||
|
|
(get-owner 5) ; F_GETOWN (Not POSIX)
|
||
|
|
(set-owner 6) ; F_SETOWN (Not POSIX)
|
||
|
|
(get-record-lock 7) ; F_GETLK
|
||
|
|
(set-record-lock-no-block 8) ; F_SETLK
|
||
|
|
(set-record-lock 9)) ; F_SETLKW
|
||
|
|
|
||
|
|
;;; fcntl fdes-flags (F_GETFD)
|
||
|
|
|
||
|
|
(define fdflags/close-on-exec 1)
|
||
|
|
|
||
|
|
;;; fcntl status-flags (F_GETFL)
|
||
|
|
;;; Mostly, these are OPEN/... flags, like OPEN/APPEND.
|
||
|
|
;;; (define fdstatus/... ...)
|
||
|
|
|
||
|
|
;;; fcntl lock values.
|
||
|
|
|
||
|
|
(define-enum-constants lock
|
||
|
|
(read 1) ; F_RDLCK
|
||
|
|
(release 2) ; F_UNLCK
|
||
|
|
(write 3)) ; F_WRLCK
|