/*
 * Copyright (c) 2013-2014 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Dornierstr. 4
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#ifndef _RTEMS_SCORE_ASSERT_H
#define _RTEMS_SCORE_ASSERT_H

#include <rtems/score/basedefs.h>

#if defined( RTEMS_DEBUG )
  #include <assert.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

/**
 * @brief Assertion similar to assert() controlled via RTEMS_DEBUG instead of
 * NDEBUG.
 */
#if defined( RTEMS_DEBUG )
  #if !defined( RTEMS_SCHEDSIM )
    /* __ASSERT_FUNC is newlib. */
    #define _Assert( _e ) \
      ( ( _e ) ? \
        ( void ) 0 : \
          __assert_func( __FILE__, __LINE__, __ASSERT_FUNC, #_e ) )
  #else
    /* __ASSERT_FUNCTION is glibc. */
    #if defined(__ASSERT_FUNCTION)
      #define _Assert( _e ) \
	( ( _e ) ? \
	  ( void ) 0 : \
	    __assert_fail( #_e, __FILE__, __LINE__, __ASSERT_FUNCTION ) )
    #else
       #error "What does assert.h use?"
    #endif
  #endif

#else
  #define _Assert( _e ) ( ( void ) 0 )
#endif

/**
 * @brief Returns true if thread dispatching is allowed.
 *
 * Thread dispatching can be repressed via _Thread_Disable_dispatch() or
 * _ISR_Disable().
 */
#if defined( RTEMS_DEBUG )
  bool _Debug_Is_thread_dispatching_allowed( void );
#endif

/**
 * @brief Returns true if the current thread of execution owns the giant lock.
 */
#if defined( RTEMS_DEBUG )
  #if defined( RTEMS_SMP )
    bool _Debug_Is_owner_of_giant( void );
  #else
    #define _Debug_Is_owner_of_giant() (true)
  #endif
#endif

/**
 * @brief Returns true if the current thread of execution owns the allocator
 * mutex.
 */
#if defined( RTEMS_DEBUG )
  bool _Debug_Is_owner_of_allocator( void );
#endif

/**
 * @brief Asserts that this point is not reached during run-time.
 */
#if RTEMS_SCHEDSIM
#define _Assert_Not_reached()
#else
#define _Assert_Not_reached() _Assert( 0 )
#endif

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* _RTEMS_SCORE_ASSERT_H */