;;; should live in SB-SYS or even SB-EXT?
(defmacro syscall ((name &rest arg-types) success-form &rest args)
+ (when (eql 3 (mismatch "[_]" name))
+ (setf name
+ (concatenate 'string #!+win32 "_" (subseq name 3))))
`(locally
(declare (optimize (sb!c::float-accuracy 0)))
(let ((result (alien-funcall (extern-alien ,name (function int ,@arg-types))
(define-alien-routine ("getenv" posix-getenv) c-string
"Return the \"value\" part of the environment string \"name=value\" which
corresponds to NAME, or NIL if there is none."
- (name c-string))
+ (name (c-string :not-null t)))
\f
;;; from stdio.h
#!-win32
(defun unix-rename (name1 name2)
(declare (type unix-pathname name1 name2))
- (void-syscall ("rename" c-string c-string) name1 name2))
+ (void-syscall ("rename" (c-string :not-null t)
+ (c-string :not-null t))
+ name1 name2))
\f
;;; from sys/types.h and gnu/types.h
;;; is not extreme enough, since it doesn't need to be blindingly
;;; fast: we can just implement those functions in C as a wrapper
;;; layer.
-(define-alien-type fd-mask unsigned-long)
+(define-alien-type fd-mask unsigned)
(define-alien-type nil
(struct fd-set
(declare (type unix-pathname path)
(type fixnum flags)
(type unix-file-mode mode))
- (int-syscall ("open" c-string int int)
- path
- (logior #!+win32 o_binary
- #!+largefile o_largefile
- flags)
- mode))
+ #!+win32 (sb!win32:unixlike-open path flags mode)
+ #!-win32
+ (with-restarted-syscall (value errno)
+ (int-syscall ("open" c-string int int)
+ path
+ (logior #!+win32 o_binary
+ #!+largefile o_largefile
+ flags)
+ mode)))
;;; UNIX-CLOSE accepts a file descriptor and attempts to close the file
;;; associated with it.
(/show0 "unix.lisp 391")
(defun unix-close (fd)
- (declare (type unix-fd fd))
- (void-syscall ("close" int) fd))
+ #!+win32 (sb!win32:unixlike-close fd)
+ #!-win32 (declare (type unix-fd fd))
+ #!-win32 (void-syscall ("close" int) fd))
\f
;;;; stdlib.h
mode)))
(if (minusp fd)
(values nil (get-errno))
- (values fd (octets-to-string template-buffer)))))))
+ (values #!-win32 fd #!+win32 (sb!win32::duplicate-and-unwrap-fd fd)
+ (octets-to-string template-buffer)))))))
\f
;;;; timebits.h
(defun unix-access (path mode)
(declare (type unix-pathname path)
(type (mod 8) mode))
- (void-syscall ("access" c-string int) path mode))
+ (void-syscall ("[_]access" c-string int) path mode))
;;; values for the second argument to UNIX-LSEEK
+;;; Note that nowadays these are called SEEK_SET, SEEK_CUR, and SEEK_END
(defconstant l_set 0) ; to set the file pointer
(defconstant l_incr 1) ; to increment the file pointer
(defconstant l_xtnd 2) ; to extend the file size
+;; off_t is 32 bit on Windows, yet our functions support 64 bit seeks.
+(define-alien-type unix-offset
+ #!-win32 off-t
+ #!+win32 (signed 64))
+
;;; Is a stream interactive?
(defun unix-isatty (fd)
(declare (type unix-fd fd))
- (int-syscall ("isatty" int) fd))
+ #!-win32 (int-syscall ("isatty" int) fd)
+ #!+win32 (sb!win32::windows-isatty fd))
(defun unix-lseek (fd offset whence)
"Unix-lseek accepts a file descriptor and moves the file pointer by
"
(declare (type unix-fd fd)
(type (integer 0 2) whence))
- (let ((result (alien-funcall (extern-alien #!-largefile "lseek"
+ (let ((result
+ #!-win32
+ (alien-funcall (extern-alien #!-largefile "lseek"
#!+largefile "lseek_largefile"
(function off-t int off-t int))
- fd offset whence)))
+ fd offset whence)
+ #!+win32 (sb!win32:lseeki64 fd offset whence)))
(if (minusp result)
(values nil (get-errno))
(values result 0))))
(defun unix-read (fd buf len)
(declare (type unix-fd fd)
(type (unsigned-byte 32) len))
- (int-syscall ("read" int (* char) int) fd buf len))
+ (int-syscall (#!-win32 "read" #!+win32 "win32_unix_read"
+ int (* char) int) fd buf len))
;;; UNIX-WRITE accepts a file descriptor, a buffer, an offset, and the
;;; length to write. It attempts to write len bytes to the device
(type (unsigned-byte 32) offset len))
(flet ((%write (sap)
(declare (system-area-pointer sap))
- (int-syscall ("write" int (* char) int)
+ (int-syscall (#!-win32 "write" #!+win32 "win32_unix_write"
+ int (* char) int)
fd
(with-alien ((ptr (* char) sap))
(addr (deref ptr offset)))
(syscall ("pipe" (* int))
(values (deref fds 0) (deref fds 1))
(cast fds (* int)))))
-#!+win32
-(defun msvcrt-raw-pipe (fds size mode)
- (syscall ("_pipe" (* int) int int)
- (values (deref fds 0) (deref fds 1))
- (cast fds (* int)) size mode))
+
#!+win32
(defun unix-pipe ()
- (with-alien ((fds (array int 2)))
- (msvcrt-raw-pipe fds 256 o_binary)))
+ (sb!win32::windows-pipe))
;; Windows mkdir() doesn't take the mode argument. It's cdecl, so we could
;; actually call it passing the mode argument, but some sharp-eyed reader
;; helpful, either, as Solaris doesn't export PATH_MAX from
;; unistd.h.
;;
- ;; FIXME: The (,stub,) nastiness produces an error message about a
- ;; comma not inside a backquote. This error has absolutely nothing
- ;; to do with the actual meaning of the error (and little to do with
- ;; its location, either).
- #!-(or linux openbsd freebsd netbsd sunos osf1 darwin hpux win32) (,stub,)
+ ;; Signal an error at compile-time, since it's needed for the
+ ;; runtime to start up
+ #!-(or linux openbsd freebsd netbsd sunos osf1 darwin hpux win32)
+ #.(error "POSIX-GETCWD is not implemented.")
#!+(or linux openbsd freebsd netbsd sunos osf1 darwin hpux win32)
(or (newcharstar-string (alien-funcall (extern-alien "getcwd"
(function (* char)
;;; Duplicate an existing file descriptor (given as the argument) and
;;; return it. If FD is not a valid file descriptor, NIL and an error
;;; number are returned.
+#!-win32
(defun unix-dup (fd)
(declare (type unix-fd fd))
(int-syscall ("dup" int) fd))
;;; Terminate the current process with an optional error code. If
;;; successful, the call doesn't return. If unsuccessful, the call
;;; returns NIL and an error number.
-(defun unix-exit (&optional (code 0))
- (declare (type (signed-byte 32) code))
- (void-syscall ("exit" int) code))
+(deftype exit-code ()
+ `(signed-byte 32))
+(defun os-exit (code &key abort)
+ #!+sb-doc
+ "Exit the process with CODE. If ABORT is true, exit is performed using _exit(2),
+avoiding atexit(3) hooks, etc. Otherwise exit(2) is called."
+ (unless (typep code 'exit-code)
+ (setf code (if abort 1 0)))
+ (if abort
+ (void-syscall ("_exit" int) code)
+ (void-syscall ("exit" int) code)))
+
+(define-deprecated-function :early "1.0.56.55" unix-exit os-exit (code)
+ (os-exit code))
;;; Return the process id of the current process.
-(define-alien-routine ("getpid" unix-getpid) int)
+(define-alien-routine (#!+win32 "_getpid" #!-win32 "getpid" unix-getpid) int)
;;; Return the real user id associated with the current process.
#!-win32
;;; Return the namestring of the home directory, being careful to
;;; include a trailing #\/
#!-win32
-(defun uid-homedir (uid)
- (or (newcharstar-string (alien-funcall (extern-alien "uid_homedir"
- (function (* char) int))
- uid))
- (error "failed to resolve home directory for Unix uid=~S" uid)))
+(progn
+ (defun uid-homedir (uid)
+ (or (newcharstar-string (alien-funcall (extern-alien "uid_homedir"
+ (function (* char) int))
+ uid))
+ (error "failed to resolve home directory for Unix uid=~S" uid)))
+
+ (defun user-homedir (uid)
+ (or (newcharstar-string (alien-funcall (extern-alien "user_homedir"
+ (function (* char) c-string))
+ uid))
+ (error "failed to resolve home directory for Unix uid=~S" uid))))
;;; Invoke readlink(2) on the file name specified by PATH. Return
;;; (VALUES LINKSTRING NIL) on success, or (VALUES NIL ERRNO) on
;;; name and the file if this is the last link.
(defun unix-unlink (name)
(declare (type unix-pathname name))
- (void-syscall ("unlink" c-string) name))
+ (void-syscall ("[_]unlink" c-string) name))
;;; Return the name of the host machine as a string.
#!-win32
(%extract-stat-results (addr buf))
name (addr buf))))
(defun unix-fstat (fd)
+ #!-win32
(declare (type unix-fd fd))
- (with-alien ((buf (struct wrapped_stat)))
- (syscall ("fstat_wrapper" int (* (struct wrapped_stat)))
- (%extract-stat-results (addr buf))
- fd (addr buf))))
+ (#!-win32 funcall #!+win32 sb!win32::call-with-crt-fd
+ (lambda (fd)
+ (with-alien ((buf (struct wrapped_stat)))
+ (syscall ("fstat_wrapper" int (* (struct wrapped_stat)))
+ (%extract-stat-results (addr buf))
+ fd (addr buf))))
+ fd))
+
+#!-win32
+(defun fd-type (fd)
+ (declare (type unix-fd fd))
+ (let ((fmt (logand
+ sb!unix:s-ifmt
+ (or (with-alien ((buf (struct wrapped_stat)))
+ (syscall ("fstat_wrapper" int (* (struct wrapped_stat)))
+ (slot buf 'st-mode)
+ fd (addr buf)))
+ 0))))
+ (cond ((logtest sb!unix:s-ififo fmt)
+ :fifo)
+ ((logtest sb!unix:s-ifchr fmt)
+ :character)
+ ((logtest sb!unix:s-ifdir fmt)
+ :directory)
+ ((logtest sb!unix:s-ifblk fmt)
+ :block)
+ ((logtest sb!unix:s-ifreg fmt)
+ :regular)
+ ((logtest sb!unix:s-ifsock fmt)
+ :socket)
+ (t
+ :unknown))))
\f
;;;; time.h
(defun nanosleep (secs nsecs)
(with-alien ((req (struct timespec))
(rem (struct timespec)))
- (setf (slot req 'tv-sec) secs)
- (setf (slot req 'tv-nsec) nsecs)
- (loop while (eql sb!unix:eintr
- (nth-value 1
- (int-syscall ("nanosleep" (* (struct timespec))
- (* (struct timespec)))
- (addr req) (addr rem))))
- do (rotatef req rem))))
+ (setf (slot req 'tv-sec) secs
+ (slot req 'tv-nsec) nsecs)
+ (loop while (and (eql sb!unix:eintr
+ (nth-value 1
+ (int-syscall ("nanosleep" (* (struct timespec))
+ (* (struct timespec)))
+ (addr req) (addr rem))))
+ ;; KLUDGE: On Darwin, if an interrupt cases nanosleep to
+ ;; take longer than the requested time, the call will
+ ;; return with EINT and (unsigned)-1 seconds in the
+ ;; remainder timespec, which would cause us to enter
+ ;; nanosleep again for ~136 years. So, we check that the
+ ;; remainder time is actually decreasing.
+ ;;
+ ;; It would be neat to do this bit of defensive
+ ;; programming on all platforms, but unfortunately on
+ ;; Linux, REM can be a little higher than REQ if the
+ ;; nanosleep() call is interrupted quickly enough,
+ ;; probably due to the request being rounded up to the
+ ;; nearest HZ. This would cause the sleep to return way
+ ;; too early.
+ #!+darwin
+ (let ((rem-sec (slot rem 'tv-sec))
+ (rem-nsec (slot rem 'tv-nsec)))
+ (when (or (> secs rem-sec)
+ (and (= secs rem-sec) (>= nsecs rem-nsec)))
+ ;; Update for next round.
+ (setf secs rem-sec
+ nsecs rem-nsec)
+ t)))
+ do (setf (slot req 'tv-sec) (slot rem 'tv-sec)
+ (slot req 'tv-nsec) (slot rem 'tv-nsec)))))
(defun unix-get-seconds-west (secs)
(multiple-value-bind (ignore seconds dst) (get-timezone secs)
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