(cl:in-package :sb-posix-internal)
-(define-condition sb-posix::syscall-error (error)
- ((errno :initarg :errno :reader sb-posix::syscall-errno))
+(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
+ (defclass ,name ,superclasses
+ ,(loop for slotd in slots
+ collect (ldiff slotd (member :array-length slotd)))
+ ,@options)
+ (declaim (inline ,to-alien ,to-protocol))
+ (defun ,to-protocol (alien &optional instance)
+ (declare (type (sb-alien:alien (* ,alien-type)) alien)
+ (type (or null ,name) instance))
+ (unless instance
+ (setf instance (make-instance ',name)))
+ ,@(loop for slotd in slots
+ ;; FIXME: slotds in source are more complicated in general
+ ;;
+ ;; FIXME: baroque construction of intricate fragility
+ for array-length = (getf (cdr slotd) :array-length)
+ if array-length
+ collect `(progn
+ (let ((array (make-array ,array-length)))
+ (setf (slot-value instance ',(car slotd))
+ array)
+ (dotimes (i ,array-length)
+ (setf (aref array i)
+ (sb-alien:deref
+ (sb-alien:slot alien ',(car slotd))
+ i)))))
+ else
+ collect `(setf (slot-value instance ',(car slotd))
+ (sb-alien:slot alien ',(car slotd))))
+ instance)
+ (defun ,to-alien (instance &optional alien)
+ (declare (type (or null (sb-alien:alien (* ,alien-type))) alien)
+ (type ,name instance))
+ (unless alien
+ (setf alien (sb-alien:make-alien ,alien-type)))
+ ,@(loop for slotd in slots
+ for array-length = (getf (cdr slotd) :array-length)
+ if array-length
+ collect `(progn
+ (let ((array (slot-value instance ',(car slotd))))
+ (dotimes (i ,array-length)
+ (setf (sb-alien:deref
+ (sb-alien:slot alien ',(car slotd))
+ i)
+ (aref array i)))))
+ else
+ collect `(setf (sb-alien:slot alien ',(car slotd))
+ (slot-value instance ',(car slotd)))))
+ (find-class ',name))))
+
+(define-condition sb-posix:syscall-error (error)
+ ((errno :initarg :errno :reader sb-posix:syscall-errno))
(:report (lambda (c s)
- (let ((errno (sb-posix::syscall-errno c)))
+ (let ((errno (sb-posix:syscall-errno c)))
(format s "System call error ~A (~A)"
errno (sb-int:strerror errno))))))
(defun syscall-error ()
(error 'sb-posix:syscall-error :errno (get-errno)))
+(declaim (inline never-fails))
+(defun never-fails (&rest args)
+ (declare (ignore args))
+ nil)
+
;;; filesystem access
(define-call "access" int minusp (pathname filename) (mode int))
(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 "link" int minusp (oldpath filename) (newpath filename))
-;;; no lchown on Darwin
-#-darwin
+(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 "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-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" (* 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).
not
(dir (* t)))
(define-call "closedir" int minusp (dir (* t)))
-
+
+(define-call "umask" sb-posix::mode-t never-fails (mode sb-posix::mode-t))
+
;;; uid, gid
-(define-call "geteuid" sb-posix::uid-t not) ;"always successful", it says
-#+linux (define-call "getresuid" sb-posix::uid-t not)
-(define-call "getuid" sb-posix::uid-t not)
+(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))
-#+linux (define-call "setfsuid" 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))
-#+linux (define-call "setresuid" int minusp
+(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 not)
-(define-call "getgid" sb-posix::gid-t not)
-#+linux (define-call "getresgid" sb-posix::gid-t not)
+(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))
-#+linux (define-call "setfsgid" 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))
-#+linux (define-call "setresgid" int minusp
+(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 not (seconds unsigned))
+(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 not)
-(define-call "getppid" sb-posix::pid-t not)
-(define-call "getpgrp" sb-posix::pid-t not)
+(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))
(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))
+
;;; mmap, msync
(define-call "mmap" sb-sys:system-area-pointer
- ;; KLUDGE: #XFFFFFFFF is (void *)-1, which is the charming return
- ;; value of mmap on failure. Except on 64 bit systems ...
(lambda (res)
- (= (sb-sys:sap-int res) #-alpha #XFFFFFFFF #+alpha #xffffffffffffffff))
+ (= (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))
(define-call "getpagesize" int minusp)
+(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)))
+
+(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)))
+ `(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 ()
+ (let ((r (alien-funcall
+ (extern-alien ,name ,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)))
+
+
+;;; 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)
projects / sbcl.git / blobdiff