/*
* 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.
*
* $Id$
*/
#define CONFIGURE_INIT
#include "system.h"
#include <signal.h>
#include <errno.h>
volatile int Signal_occurred;
volatile int Signal_count;
void Signal_handler(
int signo
)
{
Signal_count++;
printf(
"Signal: %d caught by 0x%x (%d)\n",
signo,
pthread_self(),
Signal_count
);
Signal_occurred = 1;
}
void *POSIX_Init(
void *argument
)
{
int status;
struct timespec timeout;
struct sigaction act;
sigset_t mask;
sigset_t waitset;
int signo;
siginfo_t siginfo;
puts( "\n\n*** POSIX TEST 3 ***" );
/* set the time of day, and print our buffer in multiple ways */
set_time( TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 );
/* get id of this thread */
Init_id = pthread_self();
printf( "Init's ID is 0x%08x\n", Init_id );
/* install a signal handler */
status = sigemptyset( &act.sa_mask );
assert( !status );
act.sa_handler = Signal_handler;
act.sa_flags = 0;
sigaction( SIGUSR1, &act, NULL );
/* initialize signal handler variables */
Signal_count = 0;
Signal_occurred = 0;
/*
* wait on SIGUSR1 for 3 seconds, will timeout
*/
/* initialize the signal set we will wait for to SIGUSR1 */
status = sigemptyset( &waitset );
assert( !status );
status = sigaddset( &waitset, SIGUSR1 );
assert( !status );
timeout.tv_sec = 3;
timeout.tv_nsec = 0;
puts( "Init: waiting on any signal for 3 seconds." );
signo = sigtimedwait( &waitset, &siginfo, &timeout );
assert( signo == -1 );
if ( errno == EAGAIN )
puts( "Init: correctly timed out waiting for SIGUSR1." );
else
printf( "sigtimedwait returned wrong errno - %d\n", errno );
Signal_occurred = 0;
/*
* wait on SIGUSR1 for 3 seconds, will timeout because Task_1 sends SIGUSR2
*/
empty_line();
/* initialize a mask to block SIGUSR2 */
status = sigemptyset( &mask );
assert( !status );
status = sigaddset( &mask, SIGUSR2 );
assert( !status );
printf( "Init: Block SIGUSR2\n" );
status = sigprocmask( SIG_BLOCK, &mask, NULL );
assert( !status );
/* create a thread */
status = pthread_create( &Task_id, NULL, Task_1, NULL );
assert( !status );
/* signal handler is still installed, waitset is still set for SIGUSR1 */
timeout.tv_sec = 3;
timeout.tv_nsec = 0;
puts( "Init: waiting on any signal for 3 seconds." );
signo = sigtimedwait( &waitset, &siginfo, &timeout );
/* switch to Task 1 */
if ( errno == EAGAIN )
puts( "Init: correctly timed out waiting for SIGUSR1." );
else
printf( "sigtimedwait returned wrong errno - %d\n", errno );
assert( signo == -1 );
/*
* wait on SIGUSR1 for 3 seconds, Task_2 will send it to us
*/
empty_line();
/* create a thread */
status = pthread_create( &Task_id, NULL, Task_2, NULL );
assert( !status );
/* signal handler is still installed, waitset is still set for SIGUSR1 */
/* wait on SIGUSR1 for 3 seconds, will receive SIGUSR1 from Task_2 */
timeout.tv_sec = 3;
timeout.tv_nsec = 0;
/* just so we can check that these were altered */
siginfo.si_code = -1;
siginfo.si_signo = -1;
siginfo.si_value.sival_int = -1;
puts( "Init: waiting on any signal for 3 seconds." );
signo = sigtimedwait( &waitset, &siginfo, &timeout );
printf( "Init: received (%d) SIGUSR1=%d\n", siginfo.si_signo, SIGUSR1 );
assert( signo == SIGUSR1 );
assert( siginfo.si_signo == SIGUSR1 );
assert( siginfo.si_code == SI_USER );
assert( siginfo.si_value.sival_int != -1 ); /* rtems does always set this */
/* try out a process signal */
empty_line();
puts( "Init: kill with SIGUSR2." );
status = kill( getpid(), SIGUSR2 );
assert( !status );
siginfo.si_code = -1;
siginfo.si_signo = -1;
siginfo.si_value.sival_int = -1;
status = sigemptyset( &waitset );
assert( !status );
status = sigaddset( &waitset, SIGUSR1 );
assert( !status );
status = sigaddset( &waitset, SIGUSR2 );
assert( !status );
puts( "Init: waiting on any signal for 3 seconds." );
signo = sigtimedwait( &waitset, &siginfo, &timeout );
printf( "Init: received (%d) SIGUSR2=%d\n", siginfo.si_signo, SIGUSR2 );
assert( signo == SIGUSR2 );
assert( siginfo.si_signo == SIGUSR2 );
assert( siginfo.si_code == SI_USER );
assert( siginfo.si_value.sival_int != -1 ); /* rtems does always set this */
/* exit this thread */
puts( "*** END OF POSIX TEST 3 ***" );
rtems_test_exit( 0 );
return NULL; /* just so the compiler thinks we returned something */
}
