/* SPDX-License-Identifier: BSD-2-Clause */

/*
 *  COPYRIGHT (c) 1989-2012.
 *  On-Line Applications Research Corporation (OAR).
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#define CONFIGURE_INIT
#include "system.h"
#include <signal.h>
#include <signal.h>
#include <unistd.h>
#include <errno.h>

const char rtems_test_name[] = "PSXUALARM";

static volatile int Signal_count;

static void Signal_handler(
  int signo
)
{
  rtems_test_assert( signo == SIGALRM );
  ++Signal_count;
}

void *POSIX_Init(
  void *argument
)
{
  int               status;
  useconds_t        result;
  struct sigaction  act;
  sigset_t          mask;

  TEST_BEGIN();

  /* 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%08" PRIxpthread_t "\n", Init_id );

  /* Block SIGALRM */
  status = sigemptyset( &mask );
  rtems_test_assert( status == 0 );
  status = sigaddset( &mask, SIGALRM );
  rtems_test_assert( !status );
  status = sigprocmask( SIG_BLOCK, &mask, NULL );
  rtems_test_assert( status == 0 );

  /* Validate ualarm is ignored if signal not caught */
  act.sa_handler = Signal_handler;
  act.sa_flags   = 0;
  sigaction( SIGALRM, &act, NULL );
  puts( "Init: ualarm in 500000 us" );
  result = ualarm( 500000, 0 );
  rtems_test_assert( result == 0 );

  status = sleep( 1 );
  rtems_test_assert( status == 0 );
  rtems_test_assert( Signal_count == 0 );

  /* unblock Signal and see if it happened */
  status = sigemptyset( &mask );
  rtems_test_assert( !status );
  status = sigaddset( &mask, SIGALRM );
  rtems_test_assert( !status );
  puts( "Init: Unblock SIGALRM" );
  status = sigprocmask( SIG_UNBLOCK, &mask, NULL );
  rtems_test_assert( !status );

  status = sleep( 1 );
  rtems_test_assert( status == 0 );
  rtems_test_assert( Signal_count == 0 );

  result = ualarm( 500000, 0 );
  rtems_test_assert( result == 0 );

  status = sleep( 1 );
  rtems_test_assert( status == 0 );
  rtems_test_assert( Signal_count == 1 );

  /* stop ularm */
  puts( "Init: clear ualarm with 0, 0" );
  result = ualarm( 0, 0 );
  rtems_test_assert( result == 0 );

  result = ualarm( 500000, 1000000 );
  rtems_test_assert( result == 0 );

  status = sleep( 1 );
  rtems_test_assert( status == 0 );
  rtems_test_assert( Signal_count == 2 );

  status = sleep( 1 );
  rtems_test_assert( status == 0 );
  rtems_test_assert( Signal_count == 3 );

  result = ualarm( 0, 0 );
  rtems_test_assert( result == 1000000 );

  TEST_END();
  rtems_test_exit(0);

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