Subversion Repositories openrisc_2011-10-31

/*  Task_3

 *

 *  This routine serves as a test task.

 *

 *  Input parameters:

 *    argument - task argument

 *

 *  Output parameters:  NONE

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: task3.c,v 1.2 2001-09-27 12:02:24 chris Exp $

 */

#include "system.h"

#include <signal.h>

void *Task_3(

  void *argument

)

{

  int           status;

  int           sig;

  union sigval  value;

  sigset_t      mask;

  siginfo_t     info;

  value.sival_int = SIGUSR1;

  printf( "Task_3: sigqueue SIGUSR1 with value= %d\n", value.sival_int );

  status = sigqueue( getpid(), SIGUSR1, value );

  assert( !status );

     /* catch signal with sigwaitinfo */

  empty_line();

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR1 );

  assert( !status );

  printf( "Task_3: sigwaitinfo SIGUSR1 with value= %d\n", value.sival_int );

  status = sigwaitinfo( &mask, &info );

     /* switch to Init */

  assert( !(status==-1) );

  printf(

    "Task_3: si_signo= %d si_code= %d value= %d\n",

    info.si_signo,

    info.si_code,

    info.si_value.sival_int

  );

     /* catch signal with sigwait */

  empty_line();

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR1 );

  assert( !status );

  printf( "Task_3: sigwait SIGUSR1\n" );

  status = sigwait( &mask, &sig );

     /* switch to Init */

  assert( !status );

  printf( "Task_3: signo= %d\n", sig );

     /* catch signal with pause */

  empty_line();

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR1 );

  assert( !status );

  printf( "Task_3: pause\n" );

  status = pause( );

     /* switch to Init */

  assert( !(status==-1) );

  printf( "Task_3: pause= %d\n", status );

     /* send signal to Init task before it has pended for a signal */

  empty_line();

  printf( "Task_3: sending SIGUSR2\n" );

  status = pthread_kill( Init_id, SIGUSR2 );

  assert( !status );

  printf( "Task_3: sleep so the Init task can reguest a signal\n" );

  status = sleep( 1 );

  assert( !status );

     /* end of task 3 */

  printf( "Task_3: exit\n" );

  pthread_exit( NULL );

     /* switch to Init */

  return NULL; /* just so the compiler thinks we returned something */

}