(cl:in-package :sb-posix-internal)
+(defun make-alien-slot-name (alien-type slot-name)
+ (intern (format nil "~A-~A" alien-type slot-name)
+ (symbol-package slot-name)))
+
+(declaim (inline alien-to-protocol-class))
+(defun alien-to-protocol-class (alien alien-type instance protocol-class slots)
+ "Copy SLOTS from the alien object ALIEN of type ALIEN-TYPE to INSTANCE, an instance of PROTOCOL-CLASS.
+We assume that SLOT names are the same in the alien object and in
+the protocol-class."
+ (unless instance
+ (setf instance (make-instance protocol-class)))
+ (loop for slot in slots
+ do (setf (slot-value instance slot)
+ (sb-alien:slot alien slot)))
+ instance)
+
+(defun protocol-class-to-alien (instance protocol-class alien alien-type slots)
+ (loop for slot in slots
+ do (setf (sb-alien:slot alien slot) (slot-value instance slot)))
+ instance)
+
(define-condition sb-posix:syscall-error (error)
((errno :initarg :errno :reader sb-posix:syscall-errno))
(:report (lambda (c s)
(fcntl-without-arg fd cmd)))
(define-call "opendir" (* t) null-alien (pathname filename))
-(define-call "readdir" (* t)
+(define-call "readdir" sb-posix::dirent
;; readdir() has the worst error convention in the world. It's just
;; too painful to support. (return is NULL _and_ errno "unchanged"
;; is not an error, it's EOF).
(define-call "getpagesize" int minusp)
+(defclass sb-posix::stat ()
+ ((sb-posix::mode :initarg :mode :accessor sb-posix::stat-mode)
+ (sb-posix::ino :initarg :ino :accessor sb-posix::stat-ino)
+ (sb-posix::dev :initarg :dev :accessor sb-posix::stat-dev)
+ (sb-posix::nlink :initarg :nlink :accessor sb-posix::stat-nlink)
+ (sb-posix::uid :initarg :uid :accessor sb-posix::stat-uid)
+ (sb-posix::gid :initarg :gid :accessor sb-posix::stat-gid)
+ (sb-posix::size :initarg :size :accessor sb-posix::stat-size)
+ (sb-posix::atime :initarg :atime :accessor sb-posix::stat-atime)
+ (sb-posix::mtime :initarg :mtime :accessor sb-posix::stat-mtime)
+ (sb-posix::ctime :initarg :ctime :accessor sb-posix::stat-ctime)))
+
(defmacro define-stat-call (name arg designator-fun type)
;; FIXME: this isn't the documented way of doing this, surely?
(let ((lisp-name (intern (string-upcase name) :sb-posix)))
(export ',lisp-name :sb-posix)
(declaim (inline ,lisp-name))
(defun ,lisp-name (,arg &optional stat)
- (declare (type (or null sb-posix::stat) stat))
- (unless stat
- (setq stat (sb-posix::allocate-stat)))
- ;; FIXME: Hmm. WITH-PINNED-OBJECTS/WITHOUT-GCING or something
- ;; is probably needed round here.
- (let* ((s (sb-sys:int-sap
- ;; FIXME: WILL NOT WORK ON 64-BIT LISP. VECTOR-SAP
- ;; would be better if the STAT object were
- ;; guaranteed to be a vector, but it's not (and may
- ;; well turn into an alien soon).
- (+ 8 (logandc2 (sb-kernel:get-lisp-obj-address stat) 7))))
- (r (alien-funcall
- (extern-alien ,name ,type)
- (,designator-fun ,arg)
- s)))
- (when (minusp r)
- (syscall-error)))
- stat))))
+ (declare (type (or null (sb-alien:alien (* sb-posix::alien-stat))) stat))
+ (sb-posix::with-alien-stat a-stat ()
+ (let ((r (alien-funcall
+ (extern-alien ,name ,type)
+ (,designator-fun ,arg)
+ a-stat)))
+ (when (minusp r)
+ (syscall-error))
+ (alien-to-protocol-class a-stat 'sb-posix::alien-stat
+ stat 'sb-posix::stat
+ '(sb-posix::mode sb-posix::ino sb-posix::dev
+ sb-posix::nlink sb-posix::uid sb-posix::gid
+ sb-posix::size sb-posix::atime
+ sb-posix::mtime sb-posix::ctime))))))))
+
(define-stat-call "stat" pathname sb-posix::filename
- ;; FIXME: (* T)? Ew. (* STAT) would be preferable
- (function int c-string (* t)))
+ (function int c-string (* sb-posix::alien-stat)))
(define-stat-call "lstat" pathname sb-posix::filename
- (function int c-string (* t)))
+ (function int c-string (* sb-posix::alien-stat)))
(define-stat-call "fstat" fd sb-posix::file-descriptor
- (function int int (* t)))
+ (function int int (* sb-posix::alien-stat)))
;;; mode flags
(syscall-error)))
(values (aref filedes2 0) (aref filedes2 1)))
+(defclass sb-posix::termios ()
+ ((sb-posix::iflag :initarg :iflag :accessor sb-posix::termios-iflag)
+ (sb-posix::oflag :initarg :oflag :accessor sb-posix::termios-oflag)
+ (sb-posix::cflag :initarg :cflag :accessor sb-posix::termios-cflag)
+ (sb-posix::lflag :initarg :lflag :accessor sb-posix::termios-lflag)
+ (sb-posix::cc :initarg :cc :accessor sb-posix::termios-cc)))
+
(export 'sb-posix::tcsetattr :sb-posix)
(declaim (inline sb-posix::tcsetattr))
(defun sb-posix::tcsetattr (fd actions termios)
- (let ((fd (sb-posix::file-descriptor fd)))
- (let* ((s (sb-sys:int-sap
- ;; FIXME: WILL NOT WORK ON 64-BIT LISP. VECTOR-SAP would
- ;; be better if the STAT object were guaranteed to be a
- ;; vector, but it's not (and may well turn into an alien
- ;; soon).
- (+ 8 (logandc2 (sb-kernel:get-lisp-obj-address termios) 7))))
- (r (alien-funcall
- ;; it's the old (* T) problem again :-(
- (extern-alien "tcsetattr" (function int int int (* t)))
- fd actions s)))
- (when (minusp r)
- (syscall-error)))
- (values)))
+ (sb-posix::with-alien-termios a-termios ()
+ (protocol-class-to-alien termios 'sb-posix::termios
+ a-termios 'sb-posix::alien-termios
+ '(sb-posix::iflag sb-posix::oflag
+ sb-posix::cflag sb-posix::lflag))
+ (loop with ccs = (sb-posix::alien-termios-cc a-termios)
+ for i from 0 below sb-posix::nccs
+ do (setf (sb-alien:deref ccs i)
+ (aref (sb-posix::termios-cc termios) i)))
+ (let ((fd (sb-posix::file-descriptor fd)))
+ (let* ((r (alien-funcall
+ (extern-alien "tcsetattr" (function int int int sb-posix::alien-termios))
+ fd actions termios)))
+ (when (minusp r)
+ (syscall-error)))
+ (values))))
(export 'sb-posix::tcgetattr :sb-posix)
(declaim (inline sb-posix::tcgetattr))
(defun sb-posix::tcgetattr (fd &optional termios)
- (unless termios
- (setq termios (sb-posix::allocate-termios)))
- ;; FIXME: Hmm. WITH-PINNED-OBJECTS/WITHOUT-GCING or something
- ;; is probably needed round here.
- (let* ((s (sb-sys:int-sap
- ;; FIXME: WILL NOT WORK ON 64-BIT LISP. VECTOR-SAP would
- ;; be better if the STAT object were guaranteed to be a
- ;; vector, but it's not (and may well turn into an alien
- ;; soon).
- (+ 8 (logandc2 (sb-kernel:get-lisp-obj-address termios) 7))))
- (r (alien-funcall
- (extern-alien "tcgetattr" (function int int (* t)))
- (sb-posix::file-descriptor fd)
- s)))
- (when (minusp r)
- (syscall-error)))
+ (sb-posix::with-alien-termios a-termios ()
+ (let ((r (alien-funcall
+ (extern-alien "tcgetattr" (function int int sb-posix::alien-termios))
+ (sb-posix::file-descriptor fd)
+ a-termios)))
+ (when (minusp r)
+ (syscall-error))
+ (setf termios
+ (alien-to-protocol-class a-termios 'alien-termios
+ termios 'termios
+ '(sb-posix::iflag sb-posix::oflag
+ sb-posix::cflag sb-posix::lflag)))
+ (setf (sb-posix::termios-cc termios) (make-array sb-posix::nccs))
+ (loop with ccs = (sb-posix::alien-termios-cc a-termios)
+ for i from 0 below sb-posix::nccs
+ do (setf (aref (sb-posix::termios-cc termios) i)
+ (sb-alien:deref ccs i)))))
termios)
projects / sbcl.git / blobdiff