X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=contrib%2Fsb-posix%2Finterface.lisp;h=3631996749942477077228c4da845753e6daf643;hb=4ed3f0d08c3a57a6762018d9622f253ab9d0f2b6;hp=4abe103894867940248e8def1828b4ea6d1f4c29;hpb=962663e2cce358e9ba991d168256ea8855c17c46;p=sbcl.git diff --git a/contrib/sb-posix/interface.lisp b/contrib/sb-posix/interface.lisp index 4abe103..3631996 100644 --- a/contrib/sb-posix/interface.lisp +++ b/contrib/sb-posix/interface.lisp @@ -1,15 +1,20 @@ (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)) @@ -18,21 +23,30 @@ (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)) @@ -43,39 +57,41 @@ 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)) @@ -101,3 +117,59 @@ (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)))