tc-options.c

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

/*
 * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
 *
 * 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
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/*
 * Do not manually edit this file.  It is part of the RTEMS quality process
 * and was automatically generated.
 *
 * If you find something that needs to be fixed or worded better please
 * post a report to an RTEMS mailing list or raise a bug report:
 *
 * https://docs.rtems.org/branches/master/user/support/bugs.html
 *
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 *
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 */

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

#include <rtems.h>

#include <rtems/test.h>

static bool IsPowerOfTwo( rtems_option option )
{
  return option != 0 && ( option & ( option - 1 ) ) == 0;
}

static int PopCount( rtems_option options )
{
  int count;

  count = 0;

  while ( options != 0 ) {
    ++count;
    options &= options - 1;
  }

  return count;
}

T_TEST_CASE( RtemsOptionValOptions )
{
  rtems_option options;

  T_plan(6);

  /* No action */
  T_step_true( 0, IsPowerOfTwo( RTEMS_EVENT_ANY ) );
  T_step_true( 1, IsPowerOfTwo( RTEMS_NO_WAIT ) );

  /* No action */
  T_step_eq_u32( 2, RTEMS_DEFAULT_OPTIONS, 0 );
  T_step_eq_u32( 3, RTEMS_EVENT_ALL, 0 );
  T_step_eq_u32( 4, RTEMS_WAIT, 0 );

  options = 0;
  options |= RTEMS_EVENT_ANY;
  options |= RTEMS_NO_WAIT;
  T_step_eq_int( 5, PopCount( options ), 2 );
}