src/code/bsd-os.lisp

   1 ;;;; OS interface functions for CMU CL under BSD Unix.
   2
   3 ;;;; This code was written as part of the CMU Common Lisp project at
   4 ;;;; Carnegie Mellon University, and has been placed in the public
   5 ;;;; domain.
   6
   7 (in-package "SB!SYS")
   8
   9 ;;;; Check that target machine features are set up consistently with
  10 ;;;; this file.
  11 #!-bsd (eval-when (:compile-toplevel :load-toplevel :execute)
  12          (error "The :BSD feature is missing, we shouldn't be doing this code."))
  13
  14 (defun software-type ()
  15   #!+sb-doc
  16   "Return a string describing the supporting software."
  17   (the string ; (to force error in case of unsupported BSD variant)
  18        #!+FreeBSD "FreeBSD"
  19        #!+OpenBSD "OpenBSD"
  20        #!+NetBSD "NetBSD"
  21        #!+Darwin "Darwin"))
  22
  23 (defvar *software-version* nil)
  24
  25 (defun software-version ()
  26   #!+sb-doc
  27   "Return a string describing version of the supporting software, or NIL
  28    if not available."
  29   (or *software-version*
  30       (setf *software-version*
  31             (string-trim '(#\newline)
  32                          (with-output-to-string (stream)
  33                            (sb!ext:run-program "/usr/bin/uname" `("-r")
  34                                                :output stream))))))
  35 \f
  36 (defun os-cold-init-or-reinit ()
  37   (setf *software-version* nil)
  38   (setf *default-pathname-defaults*
  39         ;; (temporary value, so that #'PATHNAME won't blow up when
  40         ;; we call it below:)
  41         (make-trivial-default-pathname)
  42         *default-pathname-defaults*
  43         ;; (final value, constructed using #'PATHNAME:)
  44         (pathname (sb!unix:posix-getcwd/))))
  45
  46 ;;; Return system time, user time and number of page faults.
  47 (defun get-system-info ()
  48   (multiple-value-bind (err? utime stime maxrss ixrss idrss
  49                              isrss minflt majflt)
  50                        (sb!unix:unix-getrusage sb!unix:rusage_self)
  51     (declare (ignore maxrss ixrss idrss isrss minflt))
  52     (unless err?
  53       (simple-perror "Unix system call getrusage() failed" :errno utime))
  54
  55     (values utime stime majflt)))
  56
  57 ;;; Return the system page size.
  58 (defun get-page-size ()
  59   ;; FIXME: probably should call getpagesize()
  60   4096)