tests/rump/kernspace/sendsig.c

   1 /*      $NetBSD: sendsig.c,v 1.1 2011/01/14 13:08:00 pooka Exp $        */
   2
   3 /*-
   4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <sys/cdefs.h>
  31 #if !defined(lint)
  32 __RCSID("$NetBSD: sendsig.c,v 1.1 2011/01/14 13:08:00 pooka Exp $");
  33 #endif /* !lint */
  34
  35 #include <sys/param.h>
  36 #include <sys/proc.h>
  37
  38 #include <rump/rump.h>
  39
  40 #include "kernspace.h"
  41
  42 /*
  43  * loop until a non-system process appears and we can send it a signal
  44  */
  45 void
  46 rumptest_sendsig(char *signo)
  47 {
  48         struct proc *p;
  49         bool sent = false;
  50         int sig;
  51
  52         sig = strtoull(signo, NULL, 10);
  53         rump_boot_setsigmodel(RUMP_SIGMODEL_RAISE);
  54
  55         mutex_enter(proc_lock);
  56         while (!sent) {
  57                 PROCLIST_FOREACH(p, &allproc) {
  58                         if (p->p_pid > 1) {
  59                                 mutex_enter(p->p_lock);
  60                                 psignal(p, sig);
  61                                 mutex_exit(p->p_lock);
  62                                 sent = true;
  63                                 break;
  64                         }
  65                 }
  66                 kpause("w8", false, 1, proc_lock);
  67         }
  68         mutex_exit(proc_lock);
  69
  70         /* restore default */
  71         rump_boot_setsigmodel(RUMP_SIGMODEL_PANIC);
  72 }
  73
  74 void
  75 rumptest_localsig(int signo)
  76 {
  77         struct proc *p = curproc;
  78
  79         mutex_enter(p->p_lock);
  80         psignal(p, signo);
  81         mutex_exit(p->p_lock);
  82 }