src/code/bsd-os.lisp

   1 ;;;; OS interface functions for SBCL 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
  12 (eval-when (:compile-toplevel :load-toplevel :execute)
  13   (error "The :BSD feature is missing, we shouldn't be doing this code."))
  14
  15 (defun software-type ()
  16   #!+sb-doc
  17   "Return a string describing the supporting software."
  18   (the string ; (to force error in case of unsupported BSD variant)
  19        #!+FreeBSD "FreeBSD"
  20        #!+OpenBSD "OpenBSD"
  21        #!+NetBSD "NetBSD"
  22        #!+Darwin "Darwin"))
  23
  24 (defun software-version ()
  25   #!+sb-doc
  26   "Return a string describing version of the supporting software, or NIL
  27    if not available."
  28   (or *software-version*
  29       (setf *software-version*
  30             (string-trim '(#\newline)
  31                          (with-output-to-string (stream)
  32                            (sb!ext:run-program "/usr/bin/uname" `("-r")
  33                                                :output stream))))))
  34 \f
  35 ;;; Return system time, user time and number of page faults.
  36 (defun get-system-info ()
  37   (multiple-value-bind (err? utime stime maxrss ixrss idrss
  38                              isrss minflt majflt)
  39                        (sb!unix:unix-getrusage sb!unix:rusage_self)
  40     (declare (ignore maxrss ixrss idrss isrss minflt))
  41     (unless err?
  42       (simple-perror "Unix system call getrusage() failed" :errno utime))
  43
  44     (values utime stime majflt)))
  45
  46 ;;; Return the system page size.
  47 (defun get-page-size ()
  48   ;; FIXME: probably should call getpagesize()
  49   4096)