(cl:in-package :sb-posix-internal)
-(define-condition sb-posix::syscall-error (error)
- ((errno :initarg :errno :reader sb-posix::syscall-errno))
+(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 "chown" int minusp (pathname filename)
(owner sb-posix::uid-t) (group sb-posix::gid-t))
(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))
+;;; FIXME: MODE arg should be optional?
+(define-call "open" int minusp (pathname filename) (flags int) (mode sb-posix::mode-t))
;;(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 "opendir" (* t) null-alien (pathname filename))
+(define-call "readdir" (* t)
+ ;; 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 "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)
-;;; mmap
+;;; 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 ...
(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))
+
(define-call "getpagesize" int minusp)
+(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-posix::stat) stat))
+ (unless stat
+ (setq stat (sb-posix::allocate-stat)))
+ ;; FIXME: Hmm. WITH-PINNED-OBJECTS/WITHOUT-GCING or something
+ ;; is probably needed round here.
+ (let* ((s (sb-sys:int-sap
+ ;; FIXME: WILL NOT WORK ON 64-BIT LISP. VECTOR-SAP
+ ;; would be better if the STAT object were
+ ;; guaranteed to be a vector, but it's not (and may
+ ;; well turn into an alien soon).
+ (+ 8 (logandc2 (sb-kernel:get-lisp-obj-address stat) 7))))
+ (r (alien-funcall
+ (extern-alien ,name ,type)
+ (,designator-fun ,arg)
+ s)))
+ (when (minusp r)
+ (syscall-error)))
+ stat))))
+(define-stat-call "stat" pathname sb-posix::filename
+ ;; FIXME: (* T)? Ew. (* STAT) would be preferable
+ (function int c-string (* t)))
+(define-stat-call "lstat" pathname sb-posix::filename
+ (function int c-string (* t)))
+(define-stat-call "fstat" fd sb-posix::file-descriptor
+ (function int int (* t)))
+
+
+;;; 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)))
projects / sbcl.git / blobdiff