tests/signals.impure.lisp

   1 ;;;; Tests for async signal safety.
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; While most of SBCL is derived from the CMU CL system, the test
   7 ;;;; files (like this one) were written from scratch after the fork
   8 ;;;; from CMU CL.
   9 ;;;
  10 ;;;; This software is in the public domain and is provided with
  11 ;;;; absoluely no warranty. See the COPYING and CREDITS files for
  12 ;;;; more information.
  13
  14 (use-package :test-util)
  15
  16 (with-test (:name (:async-unwind :specials))
  17   (let ((*x0* nil) (*x1* nil) (*x2* nil) (*x3* nil) (*x4* nil))
  18     (declare (special *x0* *x1* *x2* *x3* *x4*))
  19     (loop repeat 10 do
  20           (loop repeat 10 do
  21                 (catch 'again
  22                   (sb-ext:schedule-timer (sb-ext:make-timer
  23                                           (lambda ()
  24                                             (throw 'again nil)))
  25                                          (random 0.1))
  26                   (loop
  27                    (let ((*x0* (cons nil nil)) (*x1* (cons nil nil))
  28                          (*x2* (cons nil nil)) (*x3* (cons nil nil))
  29                          (*x4* (cons nil nil)))
  30                      (declare (special *x0* *x1* *x2* *x3* *x4*)))))
  31                 (when (not (and (null *x0*) (null *x1*) (null *x2*) (null *x3*)
  32                                 (null *x4*)))
  33                   (format t "~S ~S ~S ~S ~S~%" *x0* *x1* *x2* *x3* *x4*)
  34                   (assert nil)))
  35           (princ '*)
  36           (force-output))
  37     (terpri)))
  38
  39 (require :sb-posix)
  40
  41 (with-test (:name (:signal :errno))
  42   (let* (saved-errno
  43          (returning nil)
  44          (timer (make-timer (lambda ()
  45                               (sb-unix:unix-open "~!@#$%^&*[]()/\\" 0 0)
  46                               (assert (= sb-unix:enoent
  47                                          (sb-unix::get-errno)))
  48                               (setq returning t)))))
  49     (schedule-timer timer 0.2)
  50     ;; Fail and set errno.
  51     (sb-unix:nanosleep -1 -1)
  52     (setq saved-errno (sb-unix::get-errno))
  53     (assert (= saved-errno sb-posix:einval))
  54     ;; Wait, but not with sleep because that will be interrupted and
  55     ;; we get EINTR.
  56     (loop until returning)
  57     (loop repeat 1000000000)
  58     (assert (= saved-errno (sb-unix::get-errno)))))