ssp_slab.h

abstract rtos

#ifdef __cplusplus
extern "C"{
#endif 

#ifndef __INC_SSP_SLAB_H__
#define __INC_SSP_SLAB_H__


#define MAX_SLAB_NAME_LEN           (AOS_NAME_LEN*2)

#define CONFIG_MEM_BUF_NUM          32

#define OBJ_CTRL_END                U32_BUTT

#define SIZEOF_SLAB_HEAD            (sizeof(SLAB_S)-sizeof(OBJ_CTRL_S))
#define SIZEOF_OBJ_CTRL             (sizeof(OBJ_CTRL_S))

#define PAGE_FREE    0  
#define PAGE_MNG     1  
#define PAGE_SYS     2  
#define PAGE_FIX     3  
#define PAGE_SLAB    4  
#define PAGE_HUGE    5  

#define obj_to_page(objp) (&g_pstPages[((U32)(objp)-(U32)g_pPageOffset)>>MEM_PAGE_ORDER])






typedef struct obj_ctrl_s
{
    MPE    mpe;
    U32    sid;
    U32    tick;
    U32    ref;
    U32    next;
    S8    *file;
    U32    line;
}OBJ_CTRL_S;





struct slab_s;
typedef struct slab_s SLAB_S;
struct slab_s
{
    SLAB_S *    s_prev;         
    SLAB_S *    s_next;         
    U8     *    s_mem;          
    U32         inuse;          
    U32         free;           
    OBJ_CTRL_S  obj_ctrl[1];    
};

typedef struct mem_buf_s
{
    U32    status;
    
    SLAB_S *s_list_head;
    SLAB_S *s_list_tail;
    SLAB_S *firstnofull;
    
    U32    objsize;
    U32    objnum;
    U32    page_num;
    U32    slab_num;    
    S8     name[MAX_SLAB_NAME_LEN];
}MEM_BUF_S;

typedef struct page_s
{
    U16    status;
    U16    buf_id;
    SLAB_S *slabp;
}PAGE_S;

typedef struct slab_dbg_info
{
    U8 is_slab_s_insufficient;
    U8 is_page_insufficient;
    U8 is_release_slab;
}SLAB_DBG_INFO_S;



extern U8        * g_pPageOffset;
extern MEM_BUF_S * g_pstMemBuf;
extern PAGE_S    * g_pstPages;
extern U32         g_ulPageNum;
extern U32         g_ulFreePageStart;
extern U32         g_ulStaticMemStart;
extern U32         g_ulStaticMemPageStart;
extern U8        * g_pSlabPool;
extern U32         g_ulSlabPoolSize;
extern SLAB_DBG_INFO_S slab_dbg_info;


AOS_INLINE SLAB_S *__mem_slab_s_get( U32 size );
AOS_INLINE U32 __mem_slab_s_release( SLAB_S *pslab, U32 size );
AOS_INLINE U32 __mem_obj_verify( VOID *objp, MEM_BUF_S **ppBuf, SLAB_S **ppSlab, U32 *pulObjNo );
VOID *__mem_page_get( U32 pageNum );
U32 __mem_buf_check( MEM_BUF_S *pBuf );
U32 __mem_slab_check( MEM_BUF_S *pBuf, SLAB_S *pSlab );
OBJ_CTRL_S *mem_obj_ctrl( VOID*objp );

#endif


#ifdef __cplusplus
}
#endif