X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=contrib%2Fsb-posix%2Finterface.lisp;h=07ac6f5ade356af226ae7f57442761e05cbf18e3;hb=2815ede476070aaebcf724e6e117f333a8e53b53;hp=1e78322c750302f3723728b7968438d132a89eea;hpb=74fab9d286412e5f4bedcc0832101a0cd95857c8;p=sbcl.git diff --git a/contrib/sb-posix/interface.lisp b/contrib/sb-posix/interface.lisp index 1e78322..07ac6f5 100644 --- a/contrib/sb-posix/interface.lisp +++ b/contrib/sb-posix/interface.lisp @@ -1,65 +1,66 @@ -(cl:in-package :sb-posix-internal) +(cl:in-package :sb-posix) -(defmacro define-protocol-class +(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)))) + (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) + (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)) - (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) + (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))))) + (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))) - (format s "System call error ~A (~A)" - errno (sb-int:strerror errno)))))) + (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))) @@ -69,223 +70,542 @@ (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 "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-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 "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)) + ;; FIXME: Windows does have _mktemp, which has a slightlty different + ;; interface + (defun mkstemp (template) + ;; we are emulating sb-alien's charset conversion for strings + ;; here, to accommodate for the call-by-reference nature of + ;; mkstemp's template strings. + (let ((arg (sb-ext:string-to-octets + (filename template) + :external-format sb-alien::*default-c-string-external-format*))) + (sb-sys:with-pinned-objects (arg) + (let ((result (alien-funcall (extern-alien "mkstemp" + (function int c-string)) + (sap-alien (sb-alien::vector-sap arg) + (* char))))) + (when (minusp result) + (syscall-error)) + (values result + (sb-ext:octets-to-string + arg + :external-format sb-alien::*default-c-string-external-format*)))))) + (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))) + + ;; 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)) + + + + #+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 "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 "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) + (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)) + +#-win32 +(progn + (export 'readlink :sb-posix) + (defun readlink (pathspec) + (flet ((%readlink (path buf length) + (alien-funcall + (extern-alien "readlink" (function int c-string (* t) int)) + path buf length))) + (loop for size = 128 then (* 2 size) + for buf = (make-alien c-string size) + do (unwind-protect + (let ((count (%readlink (filename pathspec) buf size))) + (cond ((minusp count) + (syscall-error)) + ((< 0 count size) + (setf (sb-sys:sap-ref-8 (sb-alien:alien-sap buf) + count) + 0) + (return + (sb-alien::c-string-to-string + (sb-alien:alien-sap buf) + (sb-impl::default-external-format) + 'character))))) + (free-alien buf)))))) + +#-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 (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 (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 - ;; 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)) - (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 +#-win32 +(define-protocol-class passwd alien-passwd () + ((name :initarg :name :accessor passwd-name) + (passwd :initarg :passwd :accessor passwd-passwd) + (uid :initarg :uid :accessor passwd-uid) + (gid :initarg :gid :accessor passwd-gid) + (gecos :initarg :gecos :accessor passwd-gecos) + (dir :initarg :dir :accessor passwd-dir) + (shell :initarg :shell :accessor passwd-shell))) -(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 r) + r + (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)) + +#-win32 +(define-protocol-class timeval alien-timeval () + ((sec :initarg :tv-sec :accessor timeval-sec) + (usec :initarg :tv-usec :accessor timeval-usec))) + +(define-protocol-class stat alien-stat () + ((mode :initarg :mode :accessor stat-mode) + (ino :initarg :ino :accessor stat-ino) + (dev :initarg :dev :accessor stat-dev) + (nlink :initarg :nlink :accessor stat-nlink) + (uid :initarg :uid :accessor stat-uid) + (gid :initarg :gid :accessor stat-gid) + (size :initarg :size :accessor stat-size) + (atime :initarg :atime :accessor stat-atime) + (mtime :initarg :mtime :accessor stat-mtime) + (ctime :initarg :ctime :accessor 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 (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 () - (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))) + (declare (type (or null (sb-alien:alien (* alien-stat))) stat)) + (with-alien-stat a-stat () + (let ((r (alien-funcall + (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 #-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)))) +(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 (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) + (oflag :initarg :oflag :accessor sb-posix:termios-oflag) + (cflag :initarg :cflag :accessor sb-posix:termios-cflag) + (lflag :initarg :lflag :accessor sb-posix:termios-lflag) + (cc :initarg :cc :accessor sb-posix:termios-cc :array-length nccs))) + +#-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 'getenv :sb-posix) +(defun getenv (name) (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) + (extern-alien "getenv" (function (* char) c-string)) + name))) + (declare (type (alien (* char)) r)) + (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))