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/*

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

 */

#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 Signal_info_handler(

  int        signo,

  siginfo_t *info,

  void      *context

)

{

  Signal_count++;

  printf(

    "Signal_info: %d caught by 0x%x (%d) si_signo= %d si_code= %d value= %d\n",

    signo,

    pthread_self(),

    Signal_count,

    info->si_signo,

    info->si_code,

    info->si_value.sival_int

  );

  Signal_occurred = 1;

}

void *POSIX_Init(

  void *argument

)

{

  int               status;

  struct sigaction  act;

  sigset_t          mask;

  sigset_t          pending_set;

  sigset_t          oset;

  struct timespec   timeout;

  siginfo_t         info;

  puts( "\n\n*** POSIX TEST 4 ***" );

  /* 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 for SIGUSR1 */

  status = sigemptyset( &act.sa_mask );

  assert( !status );

  printf( "Init: sigemptyset -  set= 0x%08x\n", act.sa_mask );

  /* test sigfillset following the above sigemptyset */

  status = sigfillset( &act.sa_mask );

  assert( !status );

  printf( "Init: sigfillset -  set= 0x%08x\n", act.sa_mask );

  /* test sigdelset */

  status = sigdelset( &act.sa_mask, SIGUSR1 );

  assert( !status );

  printf( "Init: sigdelset - delete SIGUSR1 set= 0x%08x\n", act.sa_mask );

  /* test sigismember - FALSE */

  status = sigismember( &act.sa_mask, SIGUSR1 );

  assert( !status );

  puts( "Init: sigismember - FALSE since SIGUSR1 is not a member" );

  /* test sigismember - TRUE */

  status = sigismember( &act.sa_mask, SIGUSR2 );

  assert( status );

  puts( "Init: sigismember - TRUE since SIGUSR2 is a member" );

  /* return the set to empty */

  act.sa_handler = Signal_handler;

  act.sa_flags   = 0;

  sigaction( SIGUSR1, &act, NULL );

  /* simple signal to process */

  Signal_count = 0;

  Signal_occurred = 0;

  puts( "Init: send SIGUSR1 to process" );

  status = kill( getpid(), SIGUSR1 );

  assert( !status );

/* end of install a signal handler for SIGUSR1 */

  Signal_occurred = 0;

  /* now block the signal, send it, see if it is pending, and unblock it */

  empty_line();

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR1 );

  assert( !status );

  puts( "Init: Block SIGUSR1" );

  act.sa_handler = Signal_handler;

  act.sa_flags   = 0;

  sigaction( SIGUSR1, &act, NULL );

  /* simple signal to process */

  Signal_count = 0;

  Signal_occurred = 0;

  puts( "Init: send SIGUSR1 to process" );

  status = kill( getpid(), SIGUSR1 );

  assert( !status );

  Signal_occurred = 0;

  /* now block the signal, send it, see if it is pending, and unblock it */

  empty_line();

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR1 );

  assert( !status );

  puts( "Init: Block SIGUSR1" );

  status = sigprocmask( SIG_BLOCK, &mask, NULL );

  assert( !status );

  status = sigpending( &pending_set );

  assert( !status );

  printf( "Init: Signals pending 0x%08x\n", pending_set );

  puts( "Init: send SIGUSR1 to process" );

  status = kill( getpid(), SIGUSR1 );

  assert( !status );

  status = sigpending( &pending_set );

  assert( !status );

  printf( "Init: Signals pending 0x%08x\n", pending_set );

  puts( "Init: Unblock SIGUSR1" );

  status = sigprocmask( SIG_UNBLOCK, &mask, NULL );

  assert( !status );

  /* now let another task get interrupted by a signal */

  empty_line();

  puts( "Init: create a thread interested in SIGUSR1" );

  status = pthread_create( &Task1_id, NULL, Task_1, NULL );

  assert( !status );

  puts( "Init: Block SIGUSR1" );

  status = sigprocmask( SIG_BLOCK, &mask, NULL );

  assert( !status );

  status = sigpending( &pending_set );

  assert( !status );

  printf( "Init: Signals pending 0x%08x\n", pending_set );

  puts( "Init: sleep so the other task can block" );

  status = sleep( 1 );

  assert( !status );

     /* switch to task 1 */

  puts( "Init: send SIGUSR1 to process" );

  status = kill( getpid(), SIGUSR1 );

  assert( !status );

  status = sigpending( &pending_set );

  assert( !status );

  printf( "Init: Signals pending 0x%08x\n", pending_set );

  puts( "Init: sleep so the other task can catch signal" );

  status = sleep( 1 );

  assert( !status );

     /* switch to task 1 */

  /* test alarm */

  empty_line();

  /* install a signal handler for SIGALRM and unblock it */

  status = sigemptyset( &act.sa_mask );

  assert( !status );

  act.sa_handler = Signal_handler;

  act.sa_flags   = 0;

  sigaction( SIGALRM, &act, NULL );

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGALRM );

  assert( !status );

  puts( "Init: Unblock SIGALRM" );

  status = sigprocmask( SIG_UNBLOCK, &mask, NULL );

  assert( !status );

  /* schedule the alarm */

  puts( "Init: Firing alarm in 5 seconds" );

  status = alarm( 5 );

  printf( "Init: %d seconds left on previous alarm\n", status );

  assert( !status );

  puts( "Init: Firing alarm in 2 seconds" );

  status = alarm( 2 );

  printf( "Init: %d seconds left on previous alarm\n", status );

  assert( status );

  puts( "Init: Wait 4 seconds for alarm" );

  status = sleep( 4 );

  printf( "Init: %d seconds left in sleep\n", status );

  assert( status );

  /* test SIG_SETMASK case and returning oset of pthread_sigmask */

  empty_line();

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR1 );

  assert( !status );

  status = sigaddset( &mask, SIGUSR2 );

  assert( !status );

  puts( "Init: Block SIGUSR1 and SIGUSR2 only" );

  status = pthread_sigmask( SIG_SETMASK, &mask, &oset );

  printf( "Init: Previous blocked set was 0x%08x\n", oset );

  assert( !status );

  /* test inquiry about current blocked set with pthread_sigmask */

  status = pthread_sigmask( 0, NULL, &oset );

  printf( "Init: Current blocked set is 0x%08x\n", oset );

  assert( !status );

  /* return blocked mask to no signals blocked */

  status = sigemptyset( &mask );

  assert( !status );

  puts( "Init: Unblock all signals" );

  status = pthread_sigmask( SIG_SETMASK, &mask, &oset );

  printf( "Init: Previous blocked set was 0x%08x\n", oset );

  assert( !status );

  /* test sigsuspend */

  empty_line();

  puts( "Init: create a thread to send Init SIGUSR1" );

  status = pthread_create( &Task2_id, NULL, Task_2, NULL );

  assert( !status );

  status = sigemptyset( &mask );

  assert( !status );

  puts( "Init: sigsuspend for any signal" );

  status = sigsuspend( &mask );

  assert( status );

  printf( "Init: awakended from sigsuspend status=%08d \n", status );

  /* test a SIGINFO case, these are signals sent to a process only */

  empty_line();

  puts( "Init: create a thread to sent Process SIGUSR1 with SA_SIGINFO" );

  status = pthread_create( &Task3_id, NULL, Task_3, NULL );

  assert( !status );

  /* set action on SIGUSR1 to an info case */

  act.sa_handler   = Signal_handler;

  act.sa_flags     = SA_SIGINFO;

  act.sa_sigaction = Signal_info_handler;

  sigaction( SIGUSR1, &act, NULL );

  puts( "Init: sleep so the Task_3 can sigqueue SIGUSR1" );

  status = sleep( 1 );

  assert( !status );

     /* switch to task 1 */

  puts( "Init: sigqueue occurred" );

  /* Send SIGUSR1, Task_3 has issued a sigwaitinfo */

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR1 );

  assert( !status );

  puts( "Init: Block SIGUSR1" );

  status = sigprocmask( SIG_BLOCK, &mask, NULL );

  assert( !status );

  puts( "Init: send SIGUSR1 to process" );

  status = kill( getpid(), SIGUSR1 );

  assert( !status );

  puts( "Init: sleep so the Task_3 can receive SIGUSR1" );

  status = sleep( 1 );

  assert( !status );

  /* Send SIGUSR1, Task_3 has issued a sigwait */

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR1 );

  assert( !status );

  puts( "Init: Block SIGUSR1" );

  status = sigprocmask( SIG_BLOCK, &mask, NULL );

  assert( !status );

  puts( "Init: send SIGUSR1 to process" );

  status = kill( getpid(), SIGUSR1 );

  assert( !status );

  puts( "Init: sleep so the Task_3 can receive SIGUSR1" );

  status = sleep( 1 );

  assert( !status );

  /* Send SIGUSR1, Task_3 has issued a sigwaitinfo */

  status = sigemptyset( &mask );

  assert( !status );

  status = sigaddset( &mask, SIGUSR2 );

  assert( !status );

  puts( "Init: Block SIGUSR2" );

  status = sigprocmask( SIG_BLOCK, &mask, NULL );

  assert( !status );

  puts( "Init: send SIGUSR2 to process" );

  status = kill( getpid(), SIGUSR2 );

  assert( !status );

  puts( "Init: sleep so the Task_3 can receive SIGUSR2" );

  status = sleep( 1 );

  assert( !status );

  /* Suspend for signal that has already be sent */

  puts( "Init: sigsuspend for any signal" );

  status = sigsuspend( &mask );

  assert( status );

  printf( "Init: awakended from sigsuspend status=%d \n", status );

  /* generate error cases for psignal */

  empty_line();

  status = sigemptyset( NULL );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigemptyset - EINVAL (set invalid)" );

  status = sigfillset( NULL );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigfillset - EINVAL (set invalid)" );

  status = sigaddset( NULL, SIGUSR1 );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigaddset - EINVAL (set invalid)" );

  status = sigaddset( &mask, 0 );

  assert( !status );

  puts( "Init: sigaddset - SUCCESSFUL (signal = 0)" );

  status = sigaddset( &mask, 999 );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigaddset - EINVAL (set invalid)" );

  status = sigdelset( NULL, SIGUSR1 );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigdelset - EINVAL (set invalid)" );

  status = sigdelset( &mask, 0 );

  assert( !status );

  puts( "Init: sigdelset - SUCCESSFUL (signal = 0)" );

  status = sigdelset( &mask, 999 );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigdelset - EINVAL (set invalid)" );

  status = sigismember( NULL, SIGUSR1 );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigismember - EINVAL (set invalid)" );

  status = sigismember( &mask, 0 );

  assert( !status );

  puts( "Init: sigismember - SUCCESSFUL (signal = 0)" );

  status = sigismember( &mask, 999 );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigismember - EINVAL (signal invalid)" );

  status = sigaction( 0, &act, 0 );

  assert( !status );

  puts( "Init: sigaction - SUCCESSFUL (signal = 0)" );

  status = sigaction( 999, &act, NULL );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigaction - EINVAL (signal invalid)" );

  status = sigaction( SIGKILL, &act, NULL );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigaction - EINVAL (SIGKILL)" );

  status = pthread_sigmask( SIG_BLOCK, NULL, NULL );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: pthread_sigmask - EINVAL (set and oset invalid)" );

  status = pthread_sigmask( 999, &pending_set, NULL );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: pthread_sigmask - EINVAL (how invalid)" );

  status = sigpending( NULL );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: sigpending - EINVAL (set invalid)" );

  timeout.tv_nsec = -1;

  status = sigtimedwait( &mask, &info, &timeout );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: pthread_sigmask - EINVAL (timout->nsec invalid < 0)" );

  timeout.tv_nsec = 0x7fffffff;

  status = sigtimedwait( &mask, &info, &timeout );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: pthread_sigmask - EINVAL (timout->nsec invalid to large)" );

  status = pthread_kill( Init_id, 999 );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: pthread_kill - EINVAL (sig invalid)" );

/*

 *  This is now implemented.  We should delete this but for now

 *  we will just comment this out.

 *

 *   status = pthread_kill( 0, SIGUSR1 );

 *   if ( status != -1 )

 *     printf( "status = %d\n", status );

 *   assert( errno == ENOSYS );

 *   puts( "Init: pthread_kill - ENOSYS (signal SA_SIGINFO)" );

 */

  status = pthread_kill( 0, SIGUSR2 );

  if ( status != -1 )

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

  assert( errno == ESRCH );

  puts( "Init: pthread_kill - ESRCH (signal SA_SIGINFO)" );

  status = pthread_kill( Init_id, 0 );

  assert( !status );

  puts( "Init: pthread_kill - SUCCESSFUL (signal = 0)" );

  act.sa_handler = SIG_IGN;

  act.sa_flags = 0;

  sigaction( SIGUSR2, &act, NULL );

  status = pthread_kill( Init_id, SIGUSR2 );

  assert( !status );

  puts( "Init: pthread_kill - SUCCESSFUL (signal = SIG_IGN)" );

  status = kill( 0x7fffffff, SIGUSR1 );

  if ( status != -1 )

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

  assert( errno == ESRCH );

  puts( "Init: kill - ESRCH (pid invalid)" );

  status = kill( getpid(), 0 );

  assert( !status );

  puts( "Init: kill - SUCCESSFUL (signal = 0)" );

  status = kill( getpid(), 999 );

  if ( status != -1 )

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

  assert( errno == EINVAL );

  puts( "Init: kill - EINVAL (sig invalid)" );

  /* exit this thread */

  puts( "*** END OF POSIX TEST 4 ***" );

  exit( 0 );

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

}