;;;; Testing signal handling in non-lisp threads.

;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
;;;;
;;;; While most of SBCL is derived from the CMU CL system, the test
;;;; files (like this one) were written from scratch after the fork
;;;; from CMU CL.
;;;;
;;;; This software is in the public domain and is provided with
;;;; absolutely no warranty. See the COPYING and CREDITS files for
;;;; more information.

#+(or :openbsd :win32 (not :sb-thread)) (invoke-restart 'run-tests::skip-file)

#+sb-thread (sb-impl::finalizer-thread-stop)
(use-package :sb-alien)

(defun run (program &rest arguments)
  (let* ((proc nil)
         (output
          (with-output-to-string (s)
            (setf proc (run-program program arguments
                                    :output s)))))
    (unless (zerop (process-exit-code proc))
      (error "Bad exit code: ~S~%Output:~% ~S"
             (process-exit-code proc)
             output))
    output))

(defvar *delete* nil)
(unless (probe-file "kill-non-lisp-thread.so")
  (run "/bin/sh" "run-compiler.sh" "-sbcl-pic" "-sbcl-shared"
       "-O3" "-I" "../src/runtime/"
       "kill-non-lisp-thread.c" "-o" "kill-non-lisp-thread.so")
  (setq *delete* t))
(load-shared-object (truename "kill-non-lisp-thread.so"))

(define-alien-routine kill-non-lisp-thread void)

(with-test (:name :kill-non-lisp-thread)
  (let ((sem (sb-thread:make-semaphore)))
    (push (lambda ()
            (sb-thread:signal-semaphore sem))
          (sb-thread::thread-interruptions sb-thread:*current-thread*))
    #+sb-safepoint
    ;; On sb-safepoint builds, the usual resignalling of SIGURG will
    ;; work without problems, but the signal handler won't ordinarily
    ;; think that there's anything to be done.  Since we're poking at
    ;; INTERRUPT-THREAD internals anyway, let's help it along.
    (setf sb-unix::*thruption-pending* t)
    (kill-non-lisp-thread)
    (assert (sb-thread:wait-on-semaphore sem))))

(when *delete* (delete-file "kill-non-lisp-thread.so"))
