text: /*
      ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
                   2011,2012,2013 Giovanni Di Sirio.
  
      This file is part of ChibiOS/RT.
  
      ChibiOS/RT is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published by
      the Free Software Foundation; either version 3 of the License, or
      (at your option) any later version.
  
      ChibiOS/RT is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU General Public License for more details.
  
      You should have received a copy of the GNU General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
                                        ---
  
      A special exception to the GPL can be applied should you wish to distribute
      a combined work that includes ChibiOS/RT, without being obliged to provide
      the source code for any proprietary components. See the file exception.txt
      for full details of how and when the exception can be applied.
  */
  
  /**
   * @file    chmemcore.h
   * @brief   Core memory manager macros and structures.
   *
   * @addtogroup memcore
   * @{
   */
  
  #ifndef _CHMEMCORE_H_
  #define _CHMEMCORE_H_
  
  /**
   * @brief   Memory get function.
   * @note    This type must be assignment compatible with the @p chMemAlloc()
   *          function.
   */
  typedef void *(*memgetfunc_t)(size_t size);
  
  /**
   * @name    Alignment support macros
   */
  /**
   * @brief   Alignment size constant.
   */
  #define MEM_ALIGN_SIZE      sizeof(stkalign_t)
  
  /**
   * @brief   Alignment mask constant.
   */
  #define MEM_ALIGN_MASK      (MEM_ALIGN_SIZE - 1)
  
  /**
   * @brief   Alignment helper macro.
   */
  #define MEM_ALIGN_PREV(p)   ((size_t)(p) & ~MEM_ALIGN_MASK)
  
  /**
   * @brief   Alignment helper macro.
   */
  #define MEM_ALIGN_NEXT(p)   MEM_ALIGN_PREV((size_t)(p) + MEM_ALIGN_MASK)
  
  /**
   * @brief   Returns whatever a pointer or memory size is aligned to
   *          the type @p align_t.
   */
  #define MEM_IS_ALIGNED(p)   (((size_t)(p) & MEM_ALIGN_MASK) == 0)
  /** @} */
  
  #if CH_USE_MEMCORE || defined(__DOXYGEN__)
  
  #ifdef __cplusplus
  extern "C" {
  #endif
    void _core_init(void);
    void *chCoreAlloc(size_t size);
    void *chCoreAllocI(size_t size);
    size_t chCoreStatus(void);
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* CH_USE_MEMCORE */
  
  #endif /* _CHMEMCORE_H_ */
  
  /** @} */
  