;;;; provided with absolutely no warranty. See the COPYING and CREDITS
;;;; files for more information.
-(in-package "SB-IMPL")
+(in-package "SB-IMPL") ;(SB-IMPL, not SB!IMPL, since we're built in warm load.)
\f
;;;; hacking the Unix environment
;;;;
;;;; which (at least in sbcl-0.6.10 on Red Hat Linux 6.2) is not
;;;; visible at GENESIS time.
-(def-alien-variable "environ" (* c-string))
-
+(define-alien-routine wrapped-environ (* c-string))
(defun posix-environ ()
"Return the Unix environment (\"man environ\") as a list of SIMPLE-STRINGs."
- (c-strings->string-list environ))
+ (c-strings->string-list (wrapped-environ)))
-;;; Convert as best we can from a SBCL representation of a Unix
+;;; Convert as best we can from an SBCL representation of a Unix
;;; environment to a CMU CL representation.
;;;
;;; * (UNIX-ENVIRONMENT-CMUCL-FROM-SBCL '("Bletch=fub" "Noggin" "YES=No!"))
\f
;;;; Import wait3(2) from Unix.
-(sb-alien:def-alien-routine ("wait3" c-wait3) sb-c-call:int
- (status sb-c-call:int :out)
- (options sb-c-call:int)
- (rusage sb-c-call:int))
-
-(defconstant wait-wnohang #-svr4 1 #+svr4 #o100)
-(defconstant wait-wuntraced #-svr4 2 #+svr4 4)
-(defconstant wait-wstopped #-svr4 #o177 #+svr4 wait-wuntraced)
+(define-alien-routine ("wait3" c-wait3) sb-alien:int
+ (status sb-alien:int :out)
+ (options sb-alien:int)
+ (rusage sb-alien:int))
(defun wait3 (&optional do-not-hang check-for-stopped)
"Return any available status information on child process. "
(multiple-value-bind (pid status)
(c-wait3 (logior (if do-not-hang
- wait-wnohang
+ sb-unix:wnohang
0)
(if check-for-stopped
- wait-wuntraced
+ sb-unix:wuntraced
0))
0)
(cond ((or (minusp pid)
(zerop pid))
nil)
((eql (ldb (byte 8 0) status)
- wait-wstopped)
+ sb-unix:wstopped)
(values pid
:stopped
(ldb (byte 8 8) status)))
(defmethod print-object ((process process) stream)
(print-unreadable-object (process stream :type t)
(format stream
- "~D ~S"
+ "~W ~S"
(process-pid process)
(process-status process)))
process)
#-hpux
;;; Find the current foreground process group id.
(defun find-current-foreground-process (proc)
- (sb-alien:with-alien ((result sb-c-call:int))
+ (with-alien ((result sb-alien:int))
(multiple-value-bind
(wonp error)
(sb-unix:unix-ioctl (sb-sys:fd-stream-fd (process-pty proc))
sb-unix:TIOCGPGRP
- (sb-alien:alien-sap (sb-alien:addr result)))
+ (alien-sap (sb-alien:addr result)))
(unless wonp
(error "TIOCPGRP ioctl failed: ~S" (strerror error)))
result))
;;; list of handlers installed by RUN-PROGRAM
(defvar *handlers-installed* nil)
-#+FreeBSD
-(def-alien-type nil
- (struct sgttyb
- (sg-ispeed sb-c-call:char) ; input speed
- (sg-ospeed sb-c-call:char) ; output speed
- (sg-erase sb-c-call:char) ; erase character
- (sg-kill sb-c-call:char) ; kill character
- (sg-flags sb-c-call:short))) ; mode flags
-#+OpenBSD
-(def-alien-type nil
- (struct sgttyb
- (sg-four sb-c-call:int)
- (sg-chars (array sb-c-call:char 4))
- (sg-flags sb-c-call:int)))
-
;;; Find an unused pty. Return three values: the file descriptor for
;;; the master side of the pty, the file descriptor for the slave side
;;; of the pty, and the name of the tty device for the slave side.
sb-unix:o_rdwr
#o666)))
(when slave-fd
- ;; comment from classic CMU CL:
- ;; Maybe put a vhangup here?
- ;;
- ;; FIXME: It seems as though this logic should be in
- ;; OPEN-PTY, not FIND-A-PTY (both from the comments
- ;; documenting DEFUN FIND-A-PTY, and from the
- ;; connotations of the function names).
- ;;
- ;; FIXME: It would be nice to have a note, and/or a pointer
- ;; to some reference material somewhere, explaining
- ;; why we need this on *BSD and not on Linux.
- #+bsd
- (sb-alien:with-alien ((stuff (sb-alien:struct sgttyb)))
- (let ((sap (sb-alien:alien-sap stuff)))
- (sb-unix:unix-ioctl slave-fd sb-unix:TIOCGETP sap)
- (setf (sb-alien:slot stuff 'sg-flags)
- ;; This is EVENP|ODDP, the same numeric code
- ;; both on FreeBSD and on OpenBSD. -- WHN 20000929
- #o300) ; EVENP|ODDP
- (sb-unix:unix-ioctl slave-fd sb-unix:TIOCSETP sap)
- (sb-unix:unix-ioctl master-fd sb-unix:TIOCGETP sap)
- (setf (sb-alien:slot stuff 'sg-flags)
- (logand (sb-alien:slot stuff 'sg-flags)
- ;; This is ~ECHO, the same numeric
- ;; code both on FreeBSD and on OpenBSD.
- ;; -- WHN 20000929
- (lognot 8))) ; ~ECHO
- (sb-unix:unix-ioctl master-fd sb-unix:TIOCSETP sap)))
(return-from find-a-pty
(values master-fd
slave-fd
(when (streamp pty)
(multiple-value-bind (new-fd errno) (sb-unix:unix-dup master)
(unless new-fd
- (error "couldn't SB-UNIX:UNIX-DUP ~D: ~A" master (strerror errno)))
+ (error "couldn't SB-UNIX:UNIX-DUP ~W: ~A" master (strerror errno)))
(push new-fd *close-on-error*)
(copy-descriptor-to-stream new-fd pty cookie)))
(values name
;; Blast the string into place.
(sb-kernel:copy-to-system-area (the simple-string s)
(* sb-vm:vector-data-offset
- sb-vm:word-bits)
+ sb-vm:n-word-bits)
string-sap 0
- (* (1+ n) sb-vm:byte-bits))
+ (* (1+ n) sb-vm:n-byte-bits))
;; Blast the pointer to the string into place.
(setf (sap-ref-sap vec-sap i) string-sap)
(setf string-sap (sap+ string-sap (round-bytes-to-words (1+ n))))
(values vec-sap (sap+ vec-sap #-alpha 4 #+alpha 8) total-bytes))))
(defmacro with-c-strvec ((var str-list) &body body)
- (let ((sap (gensym "SAP-"))
- (size (gensym "SIZE-")))
+ (with-unique-names (sap size)
`(multiple-value-bind
(,sap ,var ,size)
(string-list-to-c-strvec ,str-list)
,@body)
(sb-sys:deallocate-system-memory ,sap ,size)))))
-(sb-alien:def-alien-routine spawn sb-c-call:int
- (program sb-c-call:c-string)
- (argv (* sb-c-call:c-string))
- (envp (* sb-c-call:c-string))
- (pty-name sb-c-call:c-string)
- (stdin sb-c-call:int)
- (stdout sb-c-call:int)
- (stderr sb-c-call:int))
+(sb-alien:define-alien-routine spawn sb-alien:int
+ (program sb-alien:c-string)
+ (argv (* sb-alien:c-string))
+ (envp (* sb-alien:c-string))
+ (pty-name sb-alien:c-string)
+ (stdin sb-alien:int)
+ (stdout sb-alien:int)
+ (stderr sb-alien:int))
;;; Is UNIX-FILENAME the name of a file that we can execute?
+;;; XXX does this actually work for symlinks?
(defun unix-filename-is-executable-p (unix-filename)
(declare (type simple-string unix-filename))
(values (and (eq (sb-unix:unix-file-kind unix-filename) :file)
;; "path:" defined in sbcl-0.6.10. It would probably be
;; reasonable to restore Unix PATH searching in SBCL, e.g.
;; with a function FIND-EXECUTABLE-FILE-IN-POSIX-PATH.
- ;; (I don't want to do it with search lists the way
- ;; that CMU CL did, because those are a non-ANSI
- ;; extension which I'd like to get rid of. -- WHN)
+ ;; CMU CL did it with a "PATH:" search list, but CMU CL
+ ;; search lists are a non-ANSI extension that SBCL
+ ;; doesn't support. -- WHN)
(pfile (unix-namestring program t))
(cookie (list 0)))
(unless pfile
(setf handler
(sb-sys:add-fd-handler
descriptor
- :input #'(lambda (fd)
- (declare (ignore fd))
- (loop
- (unless handler
- (return))
- (multiple-value-bind
- (result readable/errno)
- (sb-unix:unix-select (1+ descriptor)
- (ash 1 descriptor)
- 0 0 0)
- (cond ((null result)
- (error "~@<couldn't select on sub-process: ~
+ :input (lambda (fd)
+ (declare (ignore fd))
+ (loop
+ (unless handler
+ (return))
+ (multiple-value-bind
+ (result readable/errno)
+ (sb-unix:unix-select (1+ descriptor)
+ (ash 1 descriptor)
+ 0 0 0)
+ (cond ((null result)
+ (error "~@<couldn't select on sub-process: ~
~2I~_~A~:>"
- (strerror readable/errno)))
- ((zerop result)
- (return))))
- (sb-alien:with-alien ((buf (sb-alien:array
- sb-c-call:char
- 256)))
- (multiple-value-bind
- (count errno)
- (sb-unix:unix-read descriptor
- (alien-sap buf)
- 256)
- (cond ((or (and (null count)
- (eql errno sb-unix:eio))
- (eql count 0))
- (sb-sys:remove-fd-handler handler)
- (setf handler nil)
- (decf (car cookie))
- (sb-unix:unix-close descriptor)
- (return))
- ((null count)
- (sb-sys:remove-fd-handler handler)
- (setf handler nil)
- (decf (car cookie))
- (error
- "~@<couldn't read input from sub-process: ~
+ (strerror readable/errno)))
+ ((zerop result)
+ (return))))
+ (sb-alien:with-alien ((buf (sb-alien:array
+ sb-alien:char
+ 256)))
+ (multiple-value-bind
+ (count errno)
+ (sb-unix:unix-read descriptor
+ (alien-sap buf)
+ 256)
+ (cond ((or (and (null count)
+ (eql errno sb-unix:eio))
+ (eql count 0))
+ (sb-sys:remove-fd-handler handler)
+ (setf handler nil)
+ (decf (car cookie))
+ (sb-unix:unix-close descriptor)
+ (return))
+ ((null count)
+ (sb-sys:remove-fd-handler handler)
+ (setf handler nil)
+ (decf (car cookie))
+ (error
+ "~@<couldn't read input from sub-process: ~
~2I~_~A~:>"
- (strerror errno)))
- (t
- (sb-kernel:copy-from-system-area
- (alien-sap buf) 0
- string (* sb-vm:vector-data-offset
- sb-vm:word-bits)
- (* count sb-vm:byte-bits))
- (write-string string stream
- :end count)))))))))))
+ (strerror errno)))
+ (t
+ (sb-kernel:copy-from-system-area
+ (alien-sap buf) 0
+ string (* sb-vm:vector-data-offset
+ sb-vm:n-word-bits)
+ (* count sb-vm:n-byte-bits))
+ (write-string string stream
+ :end count)))))))))))
;;; Find a file descriptor to use for object given the direction.
;;; Returns the descriptor. If object is :STREAM, returns the created
projects / sbcl.git / blobdiff