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1085 pj 1
/*
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 * Project: S.Ha.R.K.
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 *
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 * Coordinators:
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 *   Giorgio Buttazzo    <giorgio@sssup.it>
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 *   Paolo Gai           <pj@gandalf.sssup.it>
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 *
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 * Authors     :
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 *   Paolo Gai           <pj@gandalf.sssup.it>
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 *   (see the web pages for full authors list)
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 *
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 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
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 *
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 * http://www.sssup.it
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 * http://retis.sssup.it
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 * http://shark.sssup.it
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 */
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/**
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 ------------
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 CVS :        $Id: ptest4.c,v 1.4 2005-01-08 14:36:11 pj Exp $
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 File:        $File$
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 Revision:    $Revision: 1.4 $
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 Last update: $Date: 2005-01-08 14:36:11 $
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 ------------
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 Posix test 4:
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   the main task create 3 tasks, J1, J2, J3
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     at t = 1 sec. it raise a signal to J1
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     at t = 2 sec. it kills J2
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   J1,J2,J3: it simply calls nanosleep
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 non standard function used:
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   cprintf
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   sys_gettime
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   keyboard stuffs
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**/
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/*
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 * Copyright (C) 2000 Paolo Gai
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
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#include <sys/types.h>
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#include <pthread.h>
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#include <signal.h>
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#include <time.h>
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#include <kernel/kern.h>
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void uscitaJ(void *arg)
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{
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  cprintf("J: (pid=%d) AAAARRRRGGGHHH!!! killed by someone...\n", exec_shadow);
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}
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void *J(void *arg)
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{
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  struct timespec t1, t2;
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  int err;
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  cprintf("J (pid=%d) starts and call nanosleep\n",exec_shadow);
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  t1.tv_sec = 3;
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  t1.tv_nsec = 0;
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  NULL_TIMESPEC(&t2);
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  pthread_cleanup_push(uscitaJ,NULL);
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  err = nanosleep(&t1, &t2);
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  pthread_cleanup_pop(0);
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  cprintf("J (pid=%d) ending, nanosleep returns errno=%d, t2=%ld.%ld\n",
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              exec_shadow, err, t2.tv_sec, t2.tv_nsec/1000);
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  return 0;
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}
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void signal_handler(int signo, siginfo_t *info, void *extra)
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{
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  cprintf("SIGNAL HANDLER: pid=%d\n",exec_shadow);
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}
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int main(int argc, char **argv)
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{
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  int err;
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  pthread_t j1, j2, j3;
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  struct sigaction sig_act;
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  sig_act.sa_sigaction = (void *) signal_handler;
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  sig_act.sa_flags = SA_SIGINFO;
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  sigemptyset(&sig_act.sa_mask);
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  sigaction(31, &sig_act, NULL);
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  cprintf("main: creating J1\n");
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  err = pthread_create(&j1, NULL, J, NULL);
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  if (err) cprintf("Error creating J1\n");
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  cprintf("main: creating J2\n");
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  err = pthread_create(&j2, NULL, J, NULL);
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  if (err) cprintf("Error creating J2\n");
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  cprintf("main: creating J3\n");
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  err = pthread_create(&j3, NULL, J, NULL);
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  if (err) cprintf("Error creating J3\n");
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  cprintf("main: waiting 1 sec\n");
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  while (sys_gettime(NULL) < 1000000);
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  cprintf("main: pthread_kill on j1, then wait until t=2 sec \n");
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  pthread_kill(j1, 31);
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  while (sys_gettime(NULL) < 2000000);
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  cprintf("main: pthread_cancel(J2)\n");
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  pthread_cancel(j2);
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  cprintf("main: ending...\n");
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  return 0;
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}