-(cl:in-package :sb-posix-internal)
+(cl:in-package :sb-posix)
(defmacro define-protocol-class
(name alien-type superclasses slots &rest options)
(let ((to-protocol (intern (format nil "ALIEN-TO-~A" name)))
(to-alien (intern (format nil "~A-TO-ALIEN" name))))
`(progn
+ (export ',name :sb-posix)
(defclass ,name ,superclasses
,(loop for slotd in slots
collect (ldiff slotd (member :array-length slotd)))
,@options)
(declaim (inline ,to-alien ,to-protocol))
+ (declaim (inline ,to-protocol ,to-alien))
(defun ,to-protocol (alien &optional instance)
(declare (type (sb-alien:alien (* ,alien-type)) alien)
(type (or null ,name) instance))
(format s "System call error ~A (~A)"
errno (sb-int:strerror errno))))))
+(defvar *errno-table*
+ (let ((errno-max 0)
+ list)
+ (do-symbols (symbol (find-package "SB-POSIX"))
+ (when (get symbol 'errno)
+ (let ((errno (symbol-value symbol)))
+ (setf errno-max (max errno errno-max))
+ (push (cons errno
+ (eval `(define-condition ,symbol (syscall-error) ())))
+ list))))
+ (let ((table (make-array (1+ errno-max))))
+ (mapc #'(lambda (cons) (setf (elt table (car cons)) (cdr cons))) list)
+ table)))
+
(defun syscall-error ()
- (error 'sb-posix:syscall-error :errno (get-errno)))
+ (let ((errno (get-errno)))
+ (error (elt *errno-table* errno) :errno errno)))
+
+(defun unsupported-error (lisp-name c-name)
+ (error "~S is unsupported by SBCL on this platform due to lack of ~A()."
+ lisp-name c-name))
+
+(defun unsupported-warning (lisp-name c-name)
+ (warn "~S is unsupported by SBCL on this platform due to lack of ~A()."
+ lisp-name c-name))
+
+;; Note that we inherit from SIMPLE-FILE-ERROR first, to get its
+;; error reporting, rather than SYSCALL-ERROR's.
+(define-condition file-syscall-error
+ (sb-impl::simple-file-error syscall-error)
+ ())
+(defvar *file-errno-table*
+ (let ((array (copy-seq *errno-table*)))
+ (map-into array
+ (lambda (condition-class-name)
+ (if (symbolp condition-class-name)
+ (let ((file-condition-name
+ (read-from-string
+ (format nil "FILE-~A" condition-class-name))))
+ ;; Should condition class names like FILE-ENOENT
+ ;; and FILE-ENOTDIR be exported? I want to say
+ ;; "no", since we already export ENOENT, ENOTDIR
+ ;; et al, and so the user can write handlers
+ ;; such as
+ ;;
+ ;; (handler-bind ((sb-posix:enoent ...)
+ ;; (sb-posix:enotdir ...)
+ ;; (file-error ...))
+ ;; ...)
+ ;;
+ ;; which will do the right thing for all our
+ ;; FILE-SYSCALL-ERRORs, without exposing this
+ ;; implementation detail. (Recall that some
+ ;; FILE-ERRORs don't strictly have to do with
+ ;; the file system, e.g., supplying a wild
+ ;; pathname to some functions.) But if the
+ ;; prevailing opinion is otherwise, uncomment
+ ;; the following.
+ #| (export file-condition-name) |#
+ (eval `(define-condition ,file-condition-name
+ (,condition-class-name file-syscall-error)
+ ())))
+ condition-class-name))
+ array)
+ array))
+
+;; Note: do we have to declare SIMPLE-FILE-PERROR notinline in
+;; fd-stream.lisp?
+(sb-ext:without-package-locks
+ (defun sb-impl::simple-file-perror (note-format pathname errno)
+ (error (elt *file-errno-table* errno)
+ :pathname pathname
+ :errno errno
+ :format-control "~@<~?: ~2I~_~A~:>"
+ :format-arguments
+ (list note-format (list pathname) (sb-int:strerror errno)))))
+
+;; Note: it might prove convenient to develop a parallel set of
+;; condition classes for STREAM-ERRORs, too.
(declaim (inline never-fails))
(defun never-fails (&rest args)
(declare (ignore args))
nil)
+;;; Some systems may need C-level wrappers, which can live in the
+;;; runtime (so that save-lisp-and-die can produce standalone
+;;; executables). See REAL-C-NAME in macros.lisp for the use of this
+;;; variable.
+(eval-when (:compile-toplevel :load-toplevel)
+ (setf *c-functions-in-runtime*
+ '`(#+netbsd ,@("stat" "lstat" "fstat" "readdir" "opendir"))))
+
+
;;; filesystem access
+(defmacro define-call* (name &rest arguments)
+ #-win32 `(define-call ,name ,@arguments)
+ #+win32 `(define-call ,(if (consp name)
+ `(,(concatenate 'string "_" (car name))
+ ,@(cdr name))
+ (concatenate 'string "_" name))
+ ,@arguments))
-(define-call "access" int minusp (pathname filename) (mode int))
-(define-call "chdir" int minusp (pathname filename))
-(define-call "chmod" int minusp (pathname filename) (mode sb-posix::mode-t))
-(define-call "chown" int minusp (pathname filename)
- (owner sb-posix::uid-t) (group sb-posix::gid-t))
-(define-call "chroot" int minusp (pathname filename))
-(define-call "close" int minusp (fd file-descriptor))
-(define-call "creat" int minusp (pathname filename) (mode sb-posix::mode-t))
-(define-call "dup" int minusp (oldfd file-descriptor))
-(define-call "dup2" int minusp (oldfd file-descriptor) (newfd file-descriptor))
-(define-call "fchdir" int minusp (fd file-descriptor))
-(define-call "fchmod" int minusp (fd file-descriptor) (mode sb-posix::mode-t))
-(define-call "fchown" int minusp (fd file-descriptor)
- (owner sb-posix::uid-t) (group sb-posix::gid-t))
-(define-call "fdatasync" int minusp (fd file-descriptor))
-(define-call "ftruncate" int minusp (fd file-descriptor) (length sb-posix::off-t))
-(define-call "fsync" int minusp (fd file-descriptor))
-(define-call "lchown" int minusp (pathname filename)
- (owner sb-posix::uid-t) (group sb-posix::gid-t))
-(define-call "link" int minusp (oldpath filename) (newpath filename))
-(define-call "lseek" sb-posix::off-t minusp (fd file-descriptor) (offset sb-posix::off-t) (whence int))
-(define-call "mkdir" int minusp (pathname filename) (mode sb-posix::mode-t))
-(define-call "mkfifo" int minusp (pathname filename) (mode sb-posix::mode-t))
-(define-call-internally open-with-mode "open" int minusp (pathname filename) (flags int) (mode sb-posix::mode-t))
-(define-call-internally open-without-mode "open" int minusp (pathname filename) (flags int))
-(define-entry-point "open" (pathname flags &optional (mode nil mode-supplied))
- (if mode-supplied
- (open-with-mode pathname flags mode)
- (open-without-mode pathname flags)))
-;;(define-call "readlink" int minusp (path filename) (buf (* t)) (len int))
+(define-call* "access" int minusp (pathname filename) (mode int))
+(define-call* "chdir" int minusp (pathname filename))
+(define-call* "chmod" int minusp (pathname filename) (mode mode-t))
+(define-call* "close" int minusp (fd file-descriptor))
+(define-call* "creat" int minusp (pathname filename) (mode mode-t))
+(define-call* "dup" int minusp (oldfd file-descriptor))
+(define-call* "dup2" int minusp (oldfd file-descriptor)
+ (newfd file-descriptor))
+(define-call* ("lseek" :options :largefile)
+ off-t minusp (fd file-descriptor) (offset off-t)
+ (whence int))
+(define-call* "mkdir" int minusp (pathname filename) (mode mode-t))
+(macrolet ((def (x)
+ `(progn
+ (define-call-internally open-with-mode ,x int minusp
+ (pathname filename) (flags int) (mode mode-t))
+ (define-call-internally open-without-mode ,x int minusp
+ (pathname filename) (flags int))
+ (define-entry-point ,x
+ (pathname flags &optional (mode nil mode-supplied))
+ (if mode-supplied
+ (open-with-mode pathname flags mode)
+ (open-without-mode pathname flags))))))
+ (def #-win32 "open" #+win32 "_open"))
(define-call "rename" int minusp (oldpath filename) (newpath filename))
-(define-call "rmdir" int minusp (pathname filename))
-(define-call "symlink" int minusp (oldpath filename) (newpath filename))
-(define-call "sync" void never-fails)
-(define-call "truncate" int minusp (pathname filename) (length sb-posix::off-t))
-(define-call "unlink" int minusp (pathname filename))
-(define-call "mkstemp" int minusp (template c-string))
-
-(define-call-internally ioctl-without-arg "ioctl" int minusp (fd file-descriptor) (cmd int))
-(define-call-internally ioctl-with-int-arg "ioctl" int minusp (fd file-descriptor) (cmd int) (arg int))
-(define-call-internally ioctl-with-pointer-arg "ioctl" int minusp (fd file-descriptor) (cmd int) (arg alien-pointer-to-anything-or-nil))
-(define-entry-point "ioctl" (fd cmd &optional (arg nil argp))
- (if argp
- (etypecase arg
- ((alien int) (ioctl-with-int-arg fd cmd arg))
- ((or (alien (* t)) null) (ioctl-with-pointer-arg fd cmd arg)))
- (ioctl-without-arg fd cmd)))
-
-(define-call-internally fcntl-without-arg "fcntl" int minusp (fd file-descriptor) (cmd int))
-(define-call-internally fcntl-with-int-arg "fcntl" int minusp (fd file-descriptor) (cmd int) (arg int))
-(define-call-internally fcntl-with-pointer-arg "fcntl" int minusp (fd file-descriptor) (cmd int) (arg alien-pointer-to-anything-or-nil))
-(define-entry-point "fcntl" (fd cmd &optional (arg nil argp))
- (if argp
- (etypecase arg
- ((alien int) (fcntl-with-int-arg fd cmd arg))
- ((or (alien (* t)) null) (fcntl-with-pointer-arg fd cmd arg)))
- (fcntl-without-arg fd cmd)))
-
-(define-call "opendir" (* t) null-alien (pathname filename))
-(define-call "readdir" (* sb-posix::dirent)
+(define-call* "rmdir" int minusp (pathname filename))
+(define-call* "unlink" int minusp (pathname filename))
+(define-call #-netbsd "opendir" #+netbsd "_opendir"
+ (* t) null-alien (pathname filename))
+(define-call (#-netbsd "readdir" #+netbsd "_readdir" :options :largefile)
+ (* 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).
not
(dir (* t)))
(define-call "closedir" int minusp (dir (* t)))
+;; need to do this here because we can't do it in the DEFPACKAGE
+(define-call* "umask" mode-t never-fails (mode mode-t))
+(define-call* "getpid" pid-t never-fails)
+
+#-win32
+(progn
+ (define-call "chown" int minusp (pathname filename)
+ (owner uid-t) (group gid-t))
+ (define-call "chroot" int minusp (pathname filename))
+ (define-call "fchdir" int minusp (fd file-descriptor))
+ (define-call "fchmod" int minusp (fd file-descriptor) (mode mode-t))
+ (define-call "fchown" int minusp (fd file-descriptor)
+ (owner uid-t) (group gid-t))
+ (define-call "fdatasync" int minusp (fd file-descriptor))
+ (define-call ("ftruncate" :options :largefile)
+ int minusp (fd file-descriptor) (length off-t))
+ (define-call "fsync" int minusp (fd file-descriptor))
+ (define-call "lchown" int minusp (pathname filename)
+ (owner uid-t) (group gid-t))
+ (define-call "link" int minusp (oldpath filename) (newpath filename))
+ (define-call "lockf" int minusp (fd file-descriptor) (cmd int) (len off-t))
+ (define-call "mkfifo" int minusp (pathname filename) (mode mode-t))
+ (define-call "symlink" int minusp (oldpath filename) (newpath filename))
+ (define-call "sync" void never-fails)
+ (define-call ("truncate" :options :largefile)
+ int minusp (pathname filename) (length off-t))
+ #-win32
+ (macrolet ((def-mk*temp (lisp-name c-name result-type errorp dirp values)
+ (declare (ignore dirp))
+ (if (sb-sys:find-foreign-symbol-address c-name)
+ `(progn
+ (defun ,lisp-name (template)
+ (let* ((external-format sb-alien::*default-c-string-external-format*)
+ (arg (sb-ext:string-to-octets
+ (filename template)
+ :external-format external-format)))
+ (sb-sys:with-pinned-objects (arg)
+ ;; accommodate for the call-by-reference
+ ;; nature of mks/dtemp's template strings.
+ (let ((result (alien-funcall (extern-alien ,c-name
+ (function ,result-type system-area-pointer))
+ (sb-alien::vector-sap arg))))
+ (when (,errorp result)
+ (syscall-error))
+ ;; FIXME: We'd rather return pathnames, but other
+ ;; SB-POSIX functions like this return strings...
+ (let ((pathname (sb-ext:octets-to-string
+ arg :external-format external-format)))
+ ,(if values
+ '(values result pathname)
+ 'pathname))))))
+ (export ',lisp-name))
+ `(progn
+ (defun ,lisp-name (template)
+ (declare (ignore template))
+ (unsupported-error ',lisp-name ,c-name))
+ (define-compiler-macro ,lisp-name (&whole form template)
+ (declare (ignore template))
+ (unsupported-warning ',lisp-name ,c-name)
+ form)
+ (export ',lisp-name)))))
+ (def-mk*temp mktemp "mktemp" (* char) null-alien nil nil)
+ ;; FIXME: Windows does have _mktemp, which has a slightly different
+ ;; interface
+ (def-mk*temp mkstemp "mkstemp" int minusp nil t)
+ ;; FIXME: What about Windows?
+ (def-mk*temp mkdtemp "mkdtemp" (* char) null-alien t nil))
+ (define-call-internally ioctl-without-arg "ioctl" int minusp
+ (fd file-descriptor) (cmd int))
+ (define-call-internally ioctl-with-int-arg "ioctl" int minusp
+ (fd file-descriptor) (cmd int) (arg int))
+ (define-call-internally ioctl-with-pointer-arg "ioctl" int minusp
+ (fd file-descriptor) (cmd int)
+ (arg alien-pointer-to-anything-or-nil))
+ (define-entry-point "ioctl" (fd cmd &optional (arg nil argp))
+ (if argp
+ (etypecase arg
+ ((alien int) (ioctl-with-int-arg fd cmd arg))
+ ((or (alien (* t)) null) (ioctl-with-pointer-arg fd cmd arg)))
+ (ioctl-without-arg fd cmd)))
+ (define-call-internally fcntl-without-arg "fcntl" int minusp
+ (fd file-descriptor) (cmd int))
+ (define-call-internally fcntl-with-int-arg "fcntl" int minusp
+ (fd file-descriptor) (cmd int) (arg int))
+ (define-call-internally fcntl-with-pointer-arg "fcntl" int minusp
+ (fd file-descriptor) (cmd int)
+ (arg alien-pointer-to-anything-or-nil))
+ (define-protocol-class flock alien-flock ()
+ ((type :initarg :type :accessor flock-type
+ :documentation "Type of lock; F_RDLCK, F_WRLCK, F_UNLCK.")
+ (whence :initarg :whence :accessor flock-whence
+ :documentation "Flag for starting offset.")
+ (start :initarg :start :accessor flock-start
+ :documentation "Relative offset in bytes.")
+ (len :initarg :len :accessor flock-len
+ :documentation "Size; if 0 then until EOF.")
+ ;; Note: PID isn't initable, and is read-only. But other stuff in
+ ;; SB-POSIX right now loses when a protocol-class slot is unbound,
+ ;; so we initialize it to 0.
+ (pid :initform 0 :reader flock-pid
+ :documentation
+ "Process ID of the process holding the lock; returned with F_GETLK."))
+ (:documentation "Class representing locks used in fcntl(2)."))
+ (define-entry-point "fcntl" (fd cmd &optional (arg nil argp))
+ (if argp
+ (etypecase arg
+ ((alien int) (fcntl-with-int-arg fd cmd arg))
+ ((or (alien (* t)) null) (fcntl-with-pointer-arg fd cmd arg))
+ (flock (with-alien-flock a-flock ()
+ (flock-to-alien arg a-flock)
+ (let ((r (fcntl-with-pointer-arg fd cmd a-flock)))
+ (alien-to-flock a-flock arg)
+ r))))
+ (fcntl-without-arg fd cmd)))
+
+ ;; uid, gid
+ (define-call "geteuid" uid-t never-fails) ; "always successful", it says
+ (define-call "getresuid" uid-t never-fails)
+ (define-call "getuid" uid-t never-fails)
+ (define-call "seteuid" int minusp (uid uid-t))
+ (define-call "setfsuid" int minusp (uid uid-t))
+ (define-call "setreuid" int minusp (ruid uid-t) (euid uid-t))
+ (define-call "setresuid" int minusp (ruid uid-t) (euid uid-t) (suid uid-t))
+ (define-call "setuid" int minusp (uid uid-t))
+ (define-call "getegid" gid-t never-fails)
+ (define-call "getgid" gid-t never-fails)
+ (define-call "getresgid" gid-t never-fails)
+ (define-call "setegid" int minusp (gid gid-t))
+ (define-call "setfsgid" int minusp (gid gid-t))
+ (define-call "setgid" int minusp (gid gid-t))
+ (define-call "setregid" int minusp (rgid gid-t) (egid gid-t))
+ (define-call "setresgid" int minusp (rgid gid-t) (egid gid-t) (sgid gid-t))
+
+ ;; processes, signals
+ (define-call "alarm" int never-fails (seconds unsigned))
+
+
-(define-call "umask" sb-posix::mode-t never-fails (mode sb-posix::mode-t))
-
-;;; uid, gid
-
-(define-call "geteuid" sb-posix::uid-t never-fails) ; "always successful", it says
-(define-call "getresuid" sb-posix::uid-t never-fails)
-(define-call "getuid" sb-posix::uid-t never-fails)
-(define-call "seteuid" int minusp (uid sb-posix::uid-t))
-(define-call "setfsuid" int minusp (uid sb-posix::uid-t))
-(define-call "setreuid" int minusp
- (ruid sb-posix::uid-t) (euid sb-posix::uid-t))
-(define-call "setresuid" int minusp
- (ruid sb-posix::uid-t) (euid sb-posix::uid-t)
- (suid sb-posix::uid-t))
-(define-call "setuid" int minusp (uid sb-posix::uid-t))
-
-(define-call "getegid" sb-posix::gid-t never-fails)
-(define-call "getgid" sb-posix::gid-t never-fails)
-(define-call "getresgid" sb-posix::gid-t never-fails)
-(define-call "setegid" int minusp (gid sb-posix::gid-t))
-(define-call "setfsgid" int minusp (gid sb-posix::gid-t))
-(define-call "setgid" int minusp (gid sb-posix::gid-t))
-(define-call "setregid" int minusp
- (rgid sb-posix::gid-t) (egid sb-posix::gid-t))
-(define-call "setresgid" int minusp
- (rgid sb-posix::gid-t)
- (egid sb-posix::gid-t) (sgid sb-posix::gid-t))
-
-;;; processes, signals
-(define-call "alarm" int never-fails (seconds unsigned))
-(define-call "fork" sb-posix::pid-t minusp)
-(define-call "getpgid" sb-posix::pid-t minusp (pid sb-posix::pid-t))
-(define-call "getpid" sb-posix::pid-t never-fails)
-(define-call "getppid" sb-posix::pid-t never-fails)
-(define-call "getpgrp" sb-posix::pid-t never-fails)
-(define-call "getsid" sb-posix::pid-t minusp (pid sb-posix::pid-t))
-(define-call "kill" int minusp (pid sb-posix::pid-t) (signal int))
-(define-call "killpg" int minusp (pgrp int) (signal int))
-(define-call "pause" int minusp)
-(define-call "setpgid" int minusp
- (pid sb-posix::pid-t) (pgid sb-posix::pid-t))
-(define-call "setpgrp" int minusp)
-
-(export 'sb-posix::wait :sb-posix)
-(declaim (inline sb-posix::wait))
-(defun sb-posix::wait (&optional statusptr)
- (declare (type (or null (simple-array (signed-byte 32) (1))) statusptr))
- (let* ((ptr (or statusptr (make-array 1 :element-type '(signed-byte 32))))
- (pid (alien-funcall
- (extern-alien "wait" (function sb-posix::pid-t (* int)))
- (sb-sys:vector-sap ptr))))
- (if (minusp pid)
- (syscall-error)
- (values pid (aref ptr 0)))))
-
-(export 'sb-posix::waitpid :sb-posix)
-(declaim (inline sb-posix::waitpid))
-(defun sb-posix::waitpid (pid options &optional statusptr)
- (declare (type (sb-alien:alien sb-posix::pid-t) pid)
- (type (sb-alien:alien int) options)
- (type (or null (simple-array (signed-byte 32) (1))) statusptr))
- (let* ((ptr (or statusptr (make-array 1 :element-type '(signed-byte 32))))
- (pid (alien-funcall
- (extern-alien "waitpid" (function sb-posix::pid-t
- sb-posix::pid-t (* int) int))
- pid (sb-sys:vector-sap ptr) options)))
- (if (minusp pid)
- (syscall-error)
- (values pid (aref ptr 0)))))
-
-;; waitpid macros
-(define-call "wifexited" boolean never-fails (status int))
-(define-call "wexitstatus" int never-fails (status int))
-(define-call "wifsignaled" boolean never-fails (status int))
-(define-call "wtermsig" int never-fails (status int))
-(define-call "wifstopped" boolean never-fails (status int))
-(define-call "wstopsig" int never-fails (status int))
-#+nil ; see alien/waitpid-macros.c
-(define-call "wifcontinued" boolean never-fails (status int))
+ #+mach-exception-handler
+ (progn
+ ;; FIXME this is a lie, of course this can fail, but there's no
+ ;; error handling here yet!
+ (define-call "setup_mach_exceptions" void never-fails)
+ (define-call ("posix_fork" :c-name "fork") pid-t minusp)
+ (defun fork ()
+ (let ((pid (posix-fork)))
+ (when (= pid 0)
+ (setup-mach-exceptions))
+ pid))
+ (export 'fork :sb-posix))
+
+ #-mach-exception-handler
+ (define-call "fork" pid-t minusp)
+
+ (define-call "getpgid" pid-t minusp (pid pid-t))
+ (define-call "getppid" pid-t never-fails)
+ (define-call "getpgrp" pid-t never-fails)
+ (define-call "getsid" pid-t minusp (pid pid-t))
+ (define-call "kill" int minusp (pid pid-t) (signal int))
+ (define-call "killpg" int minusp (pgrp int) (signal int))
+ (define-call "pause" int minusp)
+ (define-call "setpgid" int minusp (pid pid-t) (pgid pid-t))
+ (define-call "setpgrp" int minusp))
+
+(defmacro with-growing-c-string ((buffer size) &body body)
+ (sb-int:with-unique-names (c-string-block)
+ `(block ,c-string-block
+ (let (,buffer)
+ (flet ((,buffer (&optional (size-incl-null))
+ (when size-incl-null
+ (setf (sb-sys:sap-ref-8 (sb-alien:alien-sap ,buffer) size-incl-null)
+ 0))
+ (return-from ,c-string-block
+ (sb-alien::c-string-to-string
+ (sb-alien:alien-sap ,buffer)
+ (sb-impl::default-external-format)
+ 'character))))
+ (loop for ,size = 128 then (* 2 ,size)
+ do (unwind-protect
+ (progn
+ (setf ,buffer (make-alien c-string ,size))
+ ,@body)
+ (when ,buffer
+ (free-alien ,buffer)))))))))
+
+#-win32
+(progn
+ (export 'readlink :sb-posix)
+ (defun readlink (pathspec)
+ "Returns the resolved target of a symbolic link as a string."
+ (flet ((%readlink (path buf length)
+ (alien-funcall
+ (extern-alien "readlink" (function int c-string (* t) int))
+ path buf length)))
+ (with-growing-c-string (buf size)
+ (let ((count (%readlink (filename pathspec) buf size)))
+ (cond ((minusp count)
+ (syscall-error))
+ ((< 0 count size)
+ (buf count))))))))
+
+(progn
+ (export 'getcwd :sb-posix)
+ (defun getcwd ()
+ "Returns the process's current working directory as a string."
+ (flet ((%getcwd (buffer size)
+ (alien-funcall
+ (extern-alien #-win32 "getcwd"
+ #+win32 "_getcwd" (function c-string (* t) int))
+ buffer size)))
+ (with-growing-c-string (buf size)
+ (let ((result (%getcwd buf size)))
+ (cond (result
+ (buf))
+ ((/= (get-errno) sb-posix:erange)
+ (syscall-error))))))))
+
+#-win32
+(progn
+ (export 'wait :sb-posix)
+ (declaim (inline wait))
+ (defun wait (&optional statusptr)
+ (declare (type (or null (simple-array (signed-byte 32) (1))) statusptr))
+ (let* ((ptr (or statusptr (make-array 1 :element-type '(signed-byte 32))))
+ (pid (sb-sys:with-pinned-objects (ptr)
+ (alien-funcall
+ (extern-alien "wait" (function pid-t (* int)))
+ (sb-sys:vector-sap ptr)))))
+ (if (minusp pid)
+ (syscall-error)
+ (values pid (aref ptr 0))))))
+
+#-win32
+(progn
+ (export 'waitpid :sb-posix)
+ (declaim (inline waitpid))
+ (defun waitpid (pid options &optional statusptr)
+ (declare (type (sb-alien:alien pid-t) pid)
+ (type (sb-alien:alien int) options)
+ (type (or null (simple-array (signed-byte 32) (1))) statusptr))
+ (let* ((ptr (or statusptr (make-array 1 :element-type '(signed-byte 32))))
+ (pid (sb-sys:with-pinned-objects (ptr)
+ (alien-funcall
+ (extern-alien "waitpid" (function pid-t
+ pid-t (* int) int))
+ pid (sb-sys:vector-sap ptr) options))))
+ (if (minusp pid)
+ (syscall-error)
+ (values pid (aref ptr 0)))))
+ ;; waitpid macros
+ (define-call "wifexited" boolean never-fails (status int))
+ (define-call "wexitstatus" int never-fails (status int))
+ (define-call "wifsignaled" boolean never-fails (status int))
+ (define-call "wtermsig" int never-fails (status int))
+ (define-call "wifstopped" boolean never-fails (status int))
+ (define-call "wstopsig" int never-fails (status int))
+ #+nil ; see alien/waitpid-macros.c
+ (define-call "wifcontinued" boolean never-fails (status int)))
;;; mmap, msync
-(define-call "mmap" sb-sys:system-area-pointer
- (lambda (res)
- (= (sb-sys:sap-int res) #.(1- (expt 2 sb-vm::n-machine-word-bits))))
- (addr sap-or-nil) (length unsigned) (prot unsigned)
- (flags unsigned) (fd file-descriptor) (offset sb-posix::off-t))
+#-win32
+(progn
+ (define-call ("mmap" :options :largefile) sb-sys:system-area-pointer
+ (lambda (res)
+ (= (sb-sys:sap-int res) #.(1- (expt 2 sb-vm::n-machine-word-bits))))
+ (addr sap-or-nil) (length unsigned) (prot unsigned)
+ (flags unsigned) (fd file-descriptor) (offset off-t))
-(define-call "munmap" int minusp
- (start sb-sys:system-area-pointer) (length unsigned))
+ (define-call "munmap" int minusp
+ (start sb-sys:system-area-pointer) (length unsigned))
(define-call "msync" int minusp
- (addr sb-sys:system-area-pointer) (length unsigned) (flags int))
+ (addr sb-sys:system-area-pointer) (length unsigned) (flags int)))
+#-win32
(define-call "getpagesize" int minusp)
+#+win32
+;;; KLUDGE: This could be taken from GetSystemInfo
+(export (defun getpagesize () 4096))
-(define-protocol-class sb-posix::stat sb-posix::alien-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)))
+;;; passwd database
+;; The docstrings are copied from the descriptions in SUSv3,
+;; where present.
+#-win32
+(define-protocol-class passwd alien-passwd ()
+ ((name :initarg :name :accessor passwd-name
+ :documentation "User's login name.")
+ ;; Note: SUSv3 doesn't require this member.
+ (passwd :initarg :passwd :accessor passwd-passwd
+ :documentation "The account's encrypted password.")
+ (uid :initarg :uid :accessor passwd-uid
+ :documentation "Numerical user ID.")
+ (gid :initarg :gid :accessor passwd-gid
+ :documentation "Numerical group ID.")
+ ;; Note: SUSv3 doesn't require this member.
+ (gecos :initarg :gecos :accessor passwd-gecos
+ :documentation "User's name or comment field.")
+ (dir :initarg :dir :accessor passwd-dir
+ :documentation "Initial working directory.")
+ (shell :initarg :shell :accessor passwd-shell
+ :documentation "Program to use as shell."))
+ (:documentation "Instances of this class represent entries in
+ the system's user database."))
-(defmacro define-stat-call (name arg designator-fun type)
+(defmacro define-pw-call (name arg type)
+ #-win32
;; FIXME: this isn't the documented way of doing this, surely?
(let ((lisp-name (intern (string-upcase name) :sb-posix)))
`(progn
(export ',lisp-name :sb-posix)
(declaim (inline ,lisp-name))
+ (defun ,lisp-name (,arg)
+ (let ((r (alien-funcall (extern-alien ,name ,type) ,arg)))
+ (if (null-alien r)
+ nil
+ (alien-to-passwd r)))))))
+
+(define-pw-call "getpwnam" login-name (function (* alien-passwd) c-string))
+(define-pw-call "getpwuid" uid (function (* alien-passwd) uid-t))
+
+;;; group database
+#-win32
+(define-protocol-class group alien-group ()
+ ((name :initarg :name :accessor group-name)
+ (passwd :initarg :passwd :accessor group-passwd)
+ (gid :initarg :gid :accessor group-gid)))
+
+(defmacro define-gr-call (name arg type)
+ #-win32
+ ;; FIXME: this isn't the documented way of doing this, surely?
+ (let ((lisp-name (intern (string-upcase name) :sb-posix)))
+ `(progn
+ (export ',lisp-name :sb-posix)
+ (declaim (inline ,lisp-name))
+ (defun ,lisp-name (,arg)
+ (let ((r (alien-funcall (extern-alien ,name ,type) ,arg)))
+ (if (null-alien r)
+ nil
+ (alien-to-group r)))))))
+
+(define-gr-call "getgrnam" login-name (function (* alien-group) c-string))
+(define-gr-call "getgrgid" gid (function (* alien-group) gid-t))
+
+
+#-win32
+(define-protocol-class timeval alien-timeval ()
+ ((sec :initarg :tv-sec :accessor timeval-sec
+ :documentation "Seconds.")
+ (usec :initarg :tv-usec :accessor timeval-usec
+ :documentation "Microseconds."))
+ (:documentation "Instances of this class represent time values."))
+
+(define-protocol-class stat alien-stat ()
+ ((mode :initarg :mode :reader stat-mode
+ :documentation "Mode of file.")
+ (ino :initarg :ino :reader stat-ino
+ :documentation "File serial number.")
+ (dev :initarg :dev :reader stat-dev
+ :documentation "Device ID of device containing file.")
+ (nlink :initarg :nlink :reader stat-nlink
+ :documentation "Number of hard links to the file.")
+ (uid :initarg :uid :reader stat-uid
+ :documentation "User ID of file.")
+ (gid :initarg :gid :reader stat-gid
+ :documentation "Group ID of file.")
+ (size :initarg :size :reader stat-size
+ :documentation "For regular files, the file size in
+ bytes. For symbolic links, the length
+ in bytes of the filename contained in
+ the symbolic link.")
+ (atime :initarg :atime :reader stat-atime
+ :documentation "Time of last access.")
+ (mtime :initarg :mtime :reader stat-mtime
+ :documentation "Time of last data modification.")
+ (ctime :initarg :ctime :reader stat-ctime
+ :documentation "Time of last status change"))
+ (:documentation "Instances of this class represent Posix file
+ metadata."))
+
+(defmacro define-stat-call (name arg designator-fun type)
+ ;; FIXME: this isn't the documented way of doing this, surely?
+ (let ((lisp-name (lisp-for-c-symbol name)))
+ `(progn
+ (export ',lisp-name :sb-posix)
+ (declaim (inline ,lisp-name))
(defun ,lisp-name (,arg &optional stat)
- (declare (type (or null (sb-alien:alien (* sb-posix::alien-stat))) stat))
- (sb-posix::with-alien-stat a-stat ()
+ (declare (type (or null stat) stat))
+ (with-alien-stat a-stat ()
(let ((r (alien-funcall
- (extern-alien ,name ,type)
+ (extern-alien ,(real-c-name (list name :options :largefile)) ,type)
(,designator-fun ,arg)
a-stat)))
(when (minusp r)
(syscall-error))
(alien-to-stat a-stat stat)))))))
-(define-stat-call "stat" pathname sb-posix::filename
- (function int c-string (* sb-posix::alien-stat)))
-(define-stat-call "lstat" pathname sb-posix::filename
- (function int c-string (* sb-posix::alien-stat)))
-(define-stat-call "fstat" fd sb-posix::file-descriptor
- (function int int (* sb-posix::alien-stat)))
+(define-stat-call #-win32 "stat" #+win32 "_stat"
+ pathname filename
+ (function int c-string (* alien-stat)))
+
+#-win32
+(define-stat-call "lstat"
+ pathname filename
+ (function int c-string (* alien-stat)))
+;;; No symbolic links on Windows, so use stat
+#+win32
+(progn
+ (declaim (inline lstat))
+ (export (defun lstat (filename &optional stat)
+ (if stat (stat filename stat) (stat filename)))))
+
+(define-stat-call #-win32 "fstat" #+win32 "_fstat"
+ fd file-descriptor
+ (function int int (* alien-stat)))
;;; mode flags
-(define-call "s_isreg" boolean never-fails (mode sb-posix::mode-t))
-(define-call "s_isdir" boolean never-fails (mode sb-posix::mode-t))
-(define-call "s_ischr" boolean never-fails (mode sb-posix::mode-t))
-(define-call "s_isblk" boolean never-fails (mode sb-posix::mode-t))
-(define-call "s_isfifo" boolean never-fails (mode sb-posix::mode-t))
-(define-call "s_islnk" boolean never-fails (mode sb-posix::mode-t))
-(define-call "s_issock" boolean never-fails (mode sb-posix::mode-t))
-
-(export 'sb-posix::pipe :sb-posix)
-(declaim (inline sb-posix::pipe))
-(defun sb-posix::pipe (&optional filedes2)
- (declare (type (or null (simple-array (signed-byte 32) (2))) filedes2))
- (unless filedes2
- (setq filedes2 (make-array 2 :element-type '(signed-byte 32))))
- (let ((r (alien-funcall
- ;; FIXME: (* INT)? (ARRAY INT 2) would be better
- (extern-alien "pipe" (function int (* int)))
- (sb-sys:vector-sap filedes2))))
- (when (minusp r)
- (syscall-error)))
- (values (aref filedes2 0) (aref filedes2 1)))
-
-(define-protocol-class sb-posix::termios sb-posix::alien-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 :array-length sb-posix::nccs)))
-
-(export 'sb-posix::tcsetattr :sb-posix)
-(declaim (inline sb-posix::tcsetattr))
-(defun sb-posix::tcsetattr (fd actions termios)
- (sb-posix::with-alien-termios a-termios ()
- (termios-to-alien termios a-termios)
- (let ((fd (sb-posix::file-descriptor fd)))
- (let* ((r (alien-funcall
- (extern-alien
- "tcsetattr"
- (function int int int (* sb-posix::alien-termios)))
- fd actions a-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)
- (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-termios a-termios termios))))
- termios)
+(define-call "s_isreg" boolean never-fails (mode mode-t))
+(define-call "s_isdir" boolean never-fails (mode mode-t))
+(define-call "s_ischr" boolean never-fails (mode mode-t))
+(define-call "s_isblk" boolean never-fails (mode mode-t))
+(define-call "s_isfifo" boolean never-fails (mode mode-t))
+(define-call "s_islnk" boolean never-fails (mode mode-t))
+(define-call "s_issock" boolean never-fails (mode mode-t))
+
+#-win32
+(progn
+ (export 'pipe :sb-posix)
+ (declaim (inline pipe))
+ (defun pipe (&optional filedes2)
+ (declare (type (or null (simple-array (signed-byte 32) (2))) filedes2))
+ (unless filedes2
+ (setq filedes2 (make-array 2 :element-type '(signed-byte 32))))
+ (let ((r (sb-sys:with-pinned-objects (filedes2)
+ (alien-funcall
+ ;; FIXME: (* INT)? (ARRAY INT 2) would be better
+ (extern-alien "pipe" (function int (* int)))
+ (sb-sys:vector-sap filedes2)))))
+ (when (minusp r)
+ (syscall-error)))
+ (values (aref filedes2 0) (aref filedes2 1))))
+
+#-win32
+(define-protocol-class termios alien-termios ()
+ ((iflag :initarg :iflag :accessor sb-posix:termios-iflag
+ :documentation "Input modes.")
+ (oflag :initarg :oflag :accessor sb-posix:termios-oflag
+ :documentation "Output modes.")
+ (cflag :initarg :cflag :accessor sb-posix:termios-cflag
+ :documentation "Control modes.")
+ (lflag :initarg :lflag :accessor sb-posix:termios-lflag
+ :documentation "Local modes.")
+ (cc :initarg :cc :accessor sb-posix:termios-cc :array-length nccs
+ :documentation "Control characters"))
+ (:documentation "Instances of this class represent I/O
+ characteristics of the terminal."))
+
+#-win32
+(progn
+ (export 'tcsetattr :sb-posix)
+ (declaim (inline tcsetattr))
+ (defun tcsetattr (fd actions termios)
+ (declare (type termios termios))
+ (with-alien-termios a-termios ()
+ (termios-to-alien termios a-termios)
+ (let ((fd (file-descriptor fd)))
+ (let* ((r (alien-funcall
+ (extern-alien
+ "tcsetattr"
+ (function int int int (* alien-termios)))
+ fd actions a-termios)))
+ (when (minusp r)
+ (syscall-error)))
+ (values))))
+ (export 'tcgetattr :sb-posix)
+ (declaim (inline tcgetattr))
+ (defun tcgetattr (fd &optional termios)
+ (declare (type (or null termios) termios))
+ (with-alien-termios a-termios ()
+ (let ((r (alien-funcall
+ (extern-alien "tcgetattr"
+ (function int int (* alien-termios)))
+ (file-descriptor fd)
+ a-termios)))
+ (when (minusp r)
+ (syscall-error))
+ (setf termios (alien-to-termios a-termios termios))))
+ termios)
+ (export 'cfsetispeed :sb-posix)
+ (declaim (inline cfsetispeed))
+ (defun cfsetispeed (speed &optional termios)
+ (declare (type (or null termios) termios))
+ (with-alien-termios a-termios ()
+ (let ((r (alien-funcall
+ (extern-alien "cfsetispeed"
+ (function int (* alien-termios) speed-t))
+ a-termios
+ speed)))
+ (when (minusp r)
+ (syscall-error))
+ (setf termios (alien-to-termios a-termios termios))))
+ termios)
+ (export 'cfsetospeed :sb-posix)
+ (declaim (inline cfsetospeed))
+ (defun cfsetospeed (speed &optional termios)
+ (declare (type (or null termios) termios))
+ (with-alien-termios a-termios ()
+ (let ((r (alien-funcall
+ (extern-alien "cfsetospeed"
+ (function int (* alien-termios) speed-t))
+ a-termios
+ speed)))
+ (when (minusp r)
+ (syscall-error))
+ (setf termios (alien-to-termios a-termios termios))))
+ termios)
+ (export 'cfgetispeed :sb-posix)
+ (declaim (inline cfgetispeed))
+ (defun cfgetispeed (termios)
+ (declare (type termios termios))
+ (with-alien-termios a-termios ()
+ (termios-to-alien termios a-termios)
+ (alien-funcall (extern-alien "cfgetispeed"
+ (function speed-t (* alien-termios)))
+ a-termios)))
+ (export 'cfgetospeed :sb-posix)
+ (declaim (inline cfgetospeed))
+ (defun cfgetospeed (termios)
+ (declare (type termios termios))
+ (with-alien-termios a-termios ()
+ (termios-to-alien termios a-termios)
+ (alien-funcall (extern-alien "cfgetospeed"
+ (function speed-t (* alien-termios)))
+ a-termios))))
+
+
+#-win32
+(progn
+ (export 'time :sb-posix)
+ (defun time ()
+ (let ((result (alien-funcall (extern-alien "time"
+ (function time-t (* time-t)))
+ nil)))
+ (if (minusp result)
+ (syscall-error)
+ result)))
+ (export 'utime :sb-posix)
+ (defun utime (filename &optional access-time modification-time)
+ (let ((fun (extern-alien "utime" (function int c-string
+ (* alien-utimbuf))))
+ (name (filename filename)))
+ (if (not (and access-time modification-time))
+ (alien-funcall fun name nil)
+ (with-alien ((utimbuf (struct alien-utimbuf)))
+ (setf (slot utimbuf 'actime) (or access-time 0)
+ (slot utimbuf 'modtime) (or modification-time 0))
+ (let ((result (alien-funcall fun name (alien-sap utimbuf))))
+ (if (minusp result)
+ (syscall-error)
+ result))))))
+ (export 'utimes :sb-posix)
+ (defun utimes (filename &optional access-time modification-time)
+ (flet ((seconds-and-useconds (time)
+ (multiple-value-bind (integer fractional)
+ (cl:truncate time)
+ (values integer (cl:truncate (* fractional 1000000)))))
+ (maybe-syscall-error (value)
+ (if (minusp value)
+ (syscall-error)
+ value)))
+ (let ((fun (extern-alien "utimes" (function int c-string
+ (* (array alien-timeval 2)))))
+ (name (filename filename)))
+ (if (not (and access-time modification-time))
+ (maybe-syscall-error (alien-funcall fun name nil))
+ (with-alien ((buf (array alien-timeval 2)))
+ (let ((actime (deref buf 0))
+ (modtime (deref buf 1)))
+ (setf (values (slot actime 'sec)
+ (slot actime 'usec))
+ (seconds-and-useconds (or access-time 0))
+ (values (slot modtime 'sec)
+ (slot modtime 'usec))
+ (seconds-and-useconds (or modification-time 0)))
+ (maybe-syscall-error (alien-funcall fun name
+ (alien-sap buf))))))))))
+
;;; environment
-(export 'sb-posix::getenv :sb-posix)
-(defun sb-posix::getenv (name)
+(export 'getenv :sb-posix)
+(defun getenv (name)
(let ((r (alien-funcall
(extern-alien "getenv" (function (* char) c-string))
name)))
(unless (null-alien r)
(cast r c-string))))
(define-call "putenv" int minusp (string c-string))
+
+;;; syslog
+#-win32
+(progn
+ (export 'openlog :sb-posix)
+ (export 'syslog :sb-posix)
+ (export 'closelog :sb-posix)
+ (defun openlog (ident options &optional (facility log-user))
+ (alien-funcall (extern-alien
+ "openlog" (function void c-string int int))
+ ident options facility))
+ (defun syslog (priority format &rest args)
+ "Send a message to the syslog facility, with severity level
+PRIORITY. The message will be formatted as by CL:FORMAT (rather
+than C's printf) with format string FORMAT and arguments ARGS."
+ (flet ((syslog1 (priority message)
+ (alien-funcall (extern-alien
+ "syslog" (function void int c-string c-string))
+ priority "%s" message)))
+ (syslog1 priority (apply #'format nil format args))))
+ (define-call "closelog" void never-fails))
projects / sbcl.git / blobdiff