From e0aa6cee271243dfc4f086376f373ef405f3f9ce Mon Sep 17 00:00:00 2001 From: Chris Hanson Date: Wed, 5 Apr 1989 04:26:29 +0000 Subject: [PATCH] Initial revision --- v7/src/runtime/unxprm.scm | 146 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 v7/src/runtime/unxprm.scm diff --git a/v7/src/runtime/unxprm.scm b/v7/src/runtime/unxprm.scm new file mode 100644 index 000000000..2e1d377c4 --- /dev/null +++ b/v7/src/runtime/unxprm.scm @@ -0,0 +1,146 @@ +#| -*-Scheme-*- + +$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/runtime/unxprm.scm,v 1.1 1989/04/05 04:26:29 cph Exp $ + +Copyright (c) 1988, 1989 Massachusetts Institute of Technology + +This material was developed by the Scheme project at the Massachusetts +Institute of Technology, Department of Electrical Engineering and +Computer Science. Permission to copy this software, to redistribute +it, and to use it for any purpose is granted, subject to the following +restrictions and understandings. + +1. Any copy made of this software must include this copyright notice +in full. + +2. Users of this software agree to make their best efforts (a) to +return to the MIT Scheme project any improvements or extensions that +they make, so that these may be included in future releases; and (b) +to inform MIT of noteworthy uses of this software. + +3. All materials developed as a consequence of the use of this +software shall duly acknowledge such use, in accordance with the usual +standards of acknowledging credit in academic research. + +4. MIT has made no warrantee or representation that the operation of +this software will be error-free, and MIT is under no obligation to +provide any services, by way of maintenance, update, or otherwise. + +5. In conjunction with products arising from the use of this material, +there shall be no use of the name of the Massachusetts Institute of +Technology nor of any adaptation thereof in any advertising, +promotional, or sales literature without prior written consent from +MIT in each case. |# + +;;;; Miscellaneous Unix Primitives +;;; package: () + +(declare (usual-integrations)) + +(define (file-directory? filename) + (let ((truename (pathname->input-truename (->pathname filename)))) + (and truename + ((ucode-primitive file-directory?) (pathname->string truename))))) + +(define (file-symbolic-link? filename) + (let ((truename (pathname->input-truename (->pathname filename)))) + (and truename + ((ucode-primitive file-symlink?) (pathname->string truename))))) + +(define (file-attributes filename) + (let ((truename (pathname->input-truename (->pathname filename)))) + (and truename + ((ucode-primitive file-attributes) (pathname->string truename))))) + +(define-structure (file-attributes + (type vector) + (constructor false) + (conc-name file-attributes/)) + (type false read-only true) + (n-links false read-only true) + (uid false read-only true) + (gid false read-only true) + (access-time false read-only true) + (modification-time false read-only true) + (change-time false read-only true) + (length false read-only true) + (mode-string false read-only true) + (inode-number false read-only true)) + +(define (file-modification-time filename) + (let ((attributes (file-attributes filename))) + (and attributes + (file-attributes/modification-time attributes)))) + +(define (file-modes filename) + (let ((truename (pathname->input-truename (->pathname filename)))) + (and truename + ((ucode-primitive file-modes) (pathname->string truename))))) + +(define-integrable (set-file-modes! filename modes) + ((ucode-primitive set-file-modes!) (canonicalize-input-filename filename) + modes)) + +(define (unix/file-access filename amode) + (let ((truename (pathname->input-truename (->pathname filename)))) + (and truename + ((ucode-primitive file-access) (pathname->string truename) amode)))) + +(define (file-writable? filename) + (let ((pathname (pathname->absolute-pathname (->pathname filename)))) + ((ucode-primitive file-access) + (pathname->string (or (pathname->input-truename pathname) + (pathname-directory-path pathname))) + 2))) + +(define (get-environment-variable name) + (or ((ucode-primitive get-environment-variable) name) + (error "GET-ENVIRONMENT-VARIABLE: Unbound name" name))) + +(define (get-user-home-directory user-name) + (or ((ucode-primitive get-user-home-directory) user-name) + (error "User has no home directory" user-name))) + +(define unix/current-user-name + (ucode-primitive current-user-name)) + +(define unix/current-uid + (ucode-primitive current-uid)) + +(define unix/current-gid + (ucode-primitive current-gid)) + +(define unix/current-file-time + (ucode-primitive current-user-name)) + +(define unix/file-time->string + (ucode-primitive file-time->string)) + +(define (unix/uid->string uid) + (or ((ucode-primitive uid->string) uid) + (number->string uid 10))) + +(define (unix/gid->string gid) + (or ((ucode-primitive gid->string) gid) + (number->string gid 10))) + +(define unix/system + (ucode-primitive system)) + +(define (file-touch filename) + (let ((filename + (pathname->string + (let ((pathname (pathname->absolute-pathname (->pathname filename)))) + (if (let ((version (pathname-version pathname))) + (or (not version) + (integer? version))) pathname + (or (pathname->input-truename pathname) + (pathname-new-version pathname false))))))) + (let ((result ((ucode-primitive file-touch) filename))) + (if result + (error error-type:file + result + (error-irritant/noise #\newline) + (error-irritant/noise "within procedure") + (ucode-primitive file-touch))))) + unspecific) \ No newline at end of file -- 2.25.1