mem.c 文件参考

#include <rthw.h>
#include <rtthread.h>
#include <rtdbg.h>
#include <finsh.h>

mem.c 的引用(Include)关系图:

浏览该文件的源代码.

宏定义
#define	DBG_TAG   "kernel.mem"
#define	DBG_LVL   DBG_INFO
#define	MIN_SIZE   (sizeof(rt_uintptr_t) + sizeof(rt_size_t) + sizeof(rt_size_t))
#define	MEM_MASK   ((~(rt_size_t)0) - 1)
#define	MEM_USED(_mem)
#define	MEM_FREED(_mem)
#define	MEM_ISUSED(_mem)
#define	MEM_POOL(_mem)
#define	MEM_SIZE(_heap, _mem)
#define	MIN_SIZE_ALIGNED   RT_ALIGN(MIN_SIZE, RT_ALIGN_SIZE)
#define	SIZEOF_STRUCT_MEM   RT_ALIGN(sizeof(struct rt_small_mem_item), RT_ALIGN_SIZE)

函数
rt_smem_t	rt_smem_init (const char *name, void *begin_addr, rt_size_t size)
	RTM_EXPORT (rt_smem_init)
rt_err_t	rt_smem_detach (rt_smem_t m)
	RTM_EXPORT (rt_smem_detach)
void *	rt_smem_alloc (rt_smem_t m, rt_size_t size)
	RTM_EXPORT (rt_smem_alloc)
void *	rt_smem_realloc (rt_smem_t m, void *rmem, rt_size_t newsize)
	RTM_EXPORT (rt_smem_realloc)
void	rt_smem_free (void *rmem)
	RTM_EXPORT (rt_smem_free)

宏定义说明

DBG_TAG

#define DBG_TAG   "kernel.mem"

在文件 mem.c 第 55 行定义.

DBG_LVL

#define DBG_LVL   DBG_INFO

在文件 mem.c 第 56 行定义.

MIN_SIZE

#define MIN_SIZE   (sizeof(rt_uintptr_t) + sizeof(rt_size_t) + sizeof(rt_size_t))

在文件 mem.c 第 85 行定义.

MEM_MASK

#define MEM_MASK   ((~(rt_size_t)0) - 1)

在文件 mem.c 第 87 行定义.

MEM_USED

#define MEM_USED

(

_mem

)

值:

((((rt_uintptr_t)(_mem)) & MEM_MASK) | 0x1)

在文件 mem.c 第 89 行定义.

MEM_FREED

#define MEM_FREED

(

_mem

)

值:

((((rt_uintptr_t)(_mem)) & MEM_MASK) | 0x0)

在文件 mem.c 第 90 行定义.

MEM_ISUSED

#define MEM_ISUSED

(

_mem

)

值:

                      (((rt_uintptr_t)(((struct rt_small_mem_item *)(_mem))->pool_ptr)) & (~MEM_MASK))

在文件 mem.c 第 91 行定义.

#define MEM_ISUSED(_mem)   \
                      (((rt_uintptr_t)(((struct rt_small_mem_item *)(_mem))->pool_ptr)) & (~MEM_MASK))

MEM_POOL

#define MEM_POOL

(

_mem

)

值:

    ((struct rt_small_mem *)(((rt_uintptr_t)(((struct rt_small_mem_item *)(_mem))->pool_ptr)) & (MEM_MASK)))

在文件 mem.c 第 93 行定义.

#define MEM_POOL(_mem)     \
    ((struct rt_small_mem *)(((rt_uintptr_t)(((struct rt_small_mem_item *)(_mem))->pool_ptr)) & (MEM_MASK)))

MEM_SIZE

#define MEM_SIZE	(		_heap,
			_mem )

值:

    (((struct rt_small_mem_item *)(_mem))->next - ((rt_uintptr_t)(_mem) - \
    (rt_uintptr_t)((_heap)->heap_ptr)) - RT_ALIGN(sizeof(struct rt_small_mem_item), RT_ALIGN_SIZE))

在文件 mem.c 第 95 行定义.

#define MEM_SIZE(_heap, _mem)      \
    (((struct rt_small_mem_item *)(_mem))->next - ((rt_uintptr_t)(_mem) - \
    (rt_uintptr_t)((_heap)->heap_ptr)) - RT_ALIGN(sizeof(struct rt_small_mem_item), RT_ALIGN_SIZE))

MIN_SIZE_ALIGNED

#define MIN_SIZE_ALIGNED   RT_ALIGN(MIN_SIZE, RT_ALIGN_SIZE)

在文件 mem.c 第 99 行定义.

SIZEOF_STRUCT_MEM

#define SIZEOF_STRUCT_MEM   RT_ALIGN(sizeof(struct rt_small_mem_item), RT_ALIGN_SIZE)

在文件 mem.c 第 100 行定义.

函数说明

RTM_EXPORT() [1/2]

RTM_EXPORT

(

rt_smem_init

)

引用了 rt_smem_init().

函数调用图:

RTM_EXPORT() [2/2]

RTM_EXPORT

(

rt_smem_detach

)

引用了 rt_smem_detach().

函数调用图: