/* Task_3
*
* This routine serves as a test task.
*
* Input parameters:
* argument - task argument
*
* Output parameters: NONE
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#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 */
}
