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C

/*HEADER*********************************************************************
*
* Copyright (c) 2008 Freescale Semiconductor;
* All Rights Reserved
*
* Copyright (c) 2004-2008 Embedded Access Inc.;
* All Rights Reserved
*
* Copyright (c) 1989-2008 ARC International;
* All Rights Reserved
*
***************************************************************************
*
* THIS SOFTWARE IS PROVIDED BY FREESCALE "AS IS" AND ANY EXPRESSED 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 FREESCALE OR ITS 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.
*
**************************************************************************
*
* $FileName: lwmem.h$
* $Version : 3.8.22.0$
* $Date : Apr-13-2012$
*
* Comments:
*
* This file contains the structure definitions and constants for an
* application which will be using MQX.
* All compiler provided header files must be included before mqx.h.
*
*END************************************************************************/
#ifndef __lwmem_h__
#define __lwmem_h__
#include <mqx_cnfg.h>
#if (! MQX_USE_LWMEM) && (! defined (MQX_DISABLE_CONFIG_CHECK))
#error LWMEM component is currently disabled in MQX kernel. Please set MQX_USE_LWMEM to 1 in user_config.h and recompile kernel.
#endif
#ifndef __ASM__
/*--------------------------------------------------------------------------*/
/*
* DATATYPE DECLARATIONS
*/
typedef pointer _lwmem_pool_id;
/* LWMEM POOL STRUCT */
/*!
* \brief This structure is used to define the information that defines what
* defines a light weight memory pool.
*/
typedef struct lwmem_pool_struct
{
/*! \brief Links lightweight memory pools together. */
QUEUE_ELEMENT_STRUCT LINK;
/*! \brief Handle validation stamp. */
_mqx_uint VALID;
/*! \brief The address of the start of Memory Pool blocks. */
pointer POOL_ALLOC_START_PTR;
/*! \brief The address of the end of the Memory Pool. */
pointer POOL_ALLOC_END_PTR;
/*! \brief The address of the head of the memory pool free list. */
pointer POOL_FREE_LIST_PTR;
/*! \brief Pointer used when walking through free list by lwmem_alloc. */
pointer POOL_ALLOC_PTR;
/*! \brief Pointer used when freeing memory by lwmem_free. */
pointer POOL_FREE_PTR;
/*! \brief Pointer used when testing memory by lwmem_test. */
pointer POOL_TEST_PTR;
/*! \brief Pointer used when testing memory by lwmem_test. */
pointer POOL_TEST2_PTR;
/*! \brief Pointer used by lwmem_cleanup_internal. */
pointer POOL_DESTROY_PTR;
/*! \brief Pointer to highwater mark. */
pointer HIGHWATER;
} LWMEM_POOL_STRUCT, _PTR_ LWMEM_POOL_STRUCT_PTR;
#define POOL_USER_RW_ACCESS (MPU_UM_RW)
#define POOL_USER_RO_ACCESS (MPU_UM_R)
#define POOL_USER_NO_ACCESS (0)
/*--------------------------------------------------------------------------*/
/*
* PROTOTYPES OF FUNCTIONS
*/
#ifdef __cplusplus
extern "C" {
#endif
#ifndef __TAD_COMPILE__
extern pointer _lwmem_alloc(_mem_size);
extern pointer _lwmem_alloc_at(_mem_size, pointer);
extern pointer _lwmem_alloc_align(_mem_size, _mem_size);
extern pointer _lwmem_alloc_align_from(_lwmem_pool_id, _mem_size, _mem_size);
extern pointer _lwmem_alloc_zero(_mem_size);
extern pointer _lwmem_alloc_from(_lwmem_pool_id, _mem_size);
extern pointer _lwmem_alloc_zero_from(_lwmem_pool_id, _mem_size);
extern _mem_size _lwmem_get_free(void);
extern _mem_size _lwmem_get_free_from(_lwmem_pool_id);
extern pointer _lwmem_alloc_system(_mem_size);
extern pointer _lwmem_alloc_system_zero(_mem_size);
extern pointer _lwmem_alloc_system_from(_lwmem_pool_id, _mem_size);
extern pointer _lwmem_alloc_system_zero_from(_lwmem_pool_id, _mem_size);
extern _lwmem_pool_id _lwmem_create_pool(LWMEM_POOL_STRUCT_PTR, pointer, _mem_size);
extern _lwmem_pool_id _lwmem_create_pool_mapped(pointer start, _mem_size size);
extern _mqx_uint _lwmem_free(pointer);
extern _mqx_uint _lwmem_get_size(pointer);
extern _lwmem_pool_id _lwmem_set_default_pool(_lwmem_pool_id);
extern _mqx_uint _lwmem_test(_lwmem_pool_id _PTR_, pointer _PTR_);
extern _mqx_uint _lwmem_transfer(pointer, _task_id, _task_id);
extern _lwmem_pool_id _lwmem_get_system_pool_id(void);
extern _mem_type _lwmem_get_type(pointer);
extern boolean _lwmem_set_type(pointer,_mem_type);
extern pointer _lwmem_get_highwater(void) ;
#if MQX_ENABLE_USER_MODE
extern pointer _usr_lwmem_alloc(_mem_size);
extern pointer _usr_lwmem_alloc_from(_lwmem_pool_id, _mem_size);
extern _mqx_uint _usr_lwmem_free(pointer);
extern _lwmem_pool_id _usr_lwmem_create_pool(LWMEM_POOL_STRUCT_PTR, pointer, _mem_size);
extern _mqx_uint _mem_set_pool_access(_lwmem_pool_id, uint_32);
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif /* _ASM_ */
#endif /* __lwmem_h__ */
/* EOF */