-(in-package :sb-posix-internal)
-
-;;; some explanation may be necessary. The namestring "[foo]"
-;;; denotes a wild pathname. When there's a file on the disk whose
-;;; Unix name is "[foo]", the appropriate CL namestring for it is
-;;; "\\[foo]". So, don't call NAMESTRING, instead call a function
-;;; that gets us the Unix name
-(defun native-filename (pathname)
- (let ((directory (pathname-directory pathname))
- (name (pathname-name pathname))
- (type (pathname-type pathname)))
- (with-output-to-string (s nil :element-type 'base-char)
- (etypecase directory
- (string (write-string directory s))
- (list
- (when (eq (car directory) :absolute)
- (write-char #\/ s))
- (dolist (piece (cdr directory))
- (etypecase piece
- (string (write-string piece s) (write-char #\/ s))
- ((member :up) (write-string "../" s))))))
- (etypecase name
- (null)
- (string (write-string name s)))
- (etypecase type
- (null)
- (string (write-char #\. s) (write-string type s))))))
+(in-package :sb-posix)
(define-designator filename c-string
- (pathname
- (native-filename (translate-logical-pathname filename)))
+ (pathname
+ (sb-ext:native-namestring (translate-logical-pathname filename)))
(string filename))
(define-designator file-descriptor (integer 32)
(null (sb-alien:sap-alien (sb-sys:int-sap 0) (* t)))
((alien (* t)) alien-pointer-to-anything-or-nil))
-(defun lisp-for-c-symbol (s)
- (intern (substitute #\- #\_ (string-upcase s)) :sb-posix))
+(defun lisp-for-c-symbol (name)
+ (etypecase name
+ (list
+ (lisp-for-c-symbol (car name)))
+ (string
+ (let ((root (if (eql #\_ (char name 0)) (subseq name 1) name)))
+ (intern (substitute #\- #\_ (string-upcase root)) :sb-posix)))))
+
+;; Note: this variable is set in interface.lisp. defined here for
+;; clarity and so the real-c-name compile as desired.
+(defparameter *c-functions-in-runtime* nil)
+
+(defun real-c-name (name)
+ (let ((maybe-name
+ (etypecase name
+ (list
+ (destructuring-bind (name &key c-name options) name
+ (if c-name
+ c-name
+ (cond #+largefile
+ ((or (eql options :largefile)
+ (member :largefile options))
+ (format nil "~a_largefile" name))
+ (t
+ name)))))
+ (string
+ name))))
+ (if (member maybe-name *c-functions-in-runtime*
+ :test #'string=)
+ (format nil "_~A" maybe-name)
+ maybe-name)))
(defmacro define-call-internally (lisp-name c-name return-type error-predicate
- &rest arguments)
- (if (sb-sys:foreign-symbol-address-as-integer-or-nil
- (sb-vm:extern-alien-name c-name))
+ &rest arguments)
+ (if (sb-sys:find-foreign-symbol-address c-name)
`(progn
- (declaim (inline ,lisp-name))
- (defun ,lisp-name ,(mapcar #'car arguments)
- (let ((r (alien-funcall
- (extern-alien
- ,c-name
- (function ,return-type
- ,@(mapcar
- (lambda (x)
- (gethash (cadr x)
- *designator-types*
- (cadr x)))
- arguments)))
- ,@(mapcar (lambda (x)
- (if (nth-value 1
- (gethash (cadr x)
- *designator-types*))
- `(,(intern (symbol-name (cadr x))
- :sb-posix)
- ,(car x))
- (car x)))
- arguments))))
- (if (,error-predicate r) (syscall-error) r))))
+ (declaim (inline ,lisp-name))
+ (defun ,lisp-name ,(mapcar #'car arguments)
+ (let ((r (alien-funcall
+ (extern-alien
+ ,c-name
+ (function ,return-type
+ ,@(mapcar
+ (lambda (x)
+ (gethash (cadr x)
+ *designator-types*
+ (cadr x)))
+ arguments)))
+ ,@(mapcar (lambda (x)
+ (if (nth-value 1
+ (gethash (cadr x)
+ *designator-types*))
+ `(,(intern (symbol-name (cadr x))
+ :sb-posix)
+ ,(car x))
+ (car x)))
+ arguments))))
+ (if (,error-predicate r) (syscall-error) r))))
`(sb-int:style-warn "Didn't find definition for ~S" ,c-name)))
(defmacro define-call (name return-type error-predicate &rest arguments)
- (let ((lisp-name (lisp-for-c-symbol name)))
+ (let ((lisp-name (lisp-for-c-symbol name))
+ (real-c-name (real-c-name name)))
`(progn
(export ',lisp-name :sb-posix)
(define-call-internally ,lisp-name
- ,name
- ,return-type
- ,error-predicate
- ,@arguments))))
+ ,real-c-name
+ ,return-type
+ ,error-predicate
+ ,@arguments))))
(defmacro define-entry-point (name arglist &body body)
(let ((lisp-name (lisp-for-c-symbol name)))
(export ',lisp-name :sb-posix)
(declaim (inline ,lisp-name))
(defun ,lisp-name ,arglist
- ,@body))))
+ ,@body))))