Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
weixin_46254178
rt-thread
提交
fe5d506e
R
rt-thread
项目概览
weixin_46254178
/
rt-thread
与 Fork 源项目一致
Fork自
RT-Thread / rt-thread
通知
1
Star
1
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
DevOps
流水线
流水线任务
计划
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
R
rt-thread
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
DevOps
DevOps
流水线
流水线任务
计划
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
流水线任务
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
提交
fe5d506e
编写于
9月 13, 2021
作者:
Nameless-Y
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
【增加】memheap.c
上级
464d0c5a
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
130 addition
and
11 deletion
+130
-11
src/memheap.c
src/memheap.c
+130
-11
未找到文件。
src/memheap.c
浏览文件 @
fe5d506e
...
...
@@ -39,6 +39,13 @@
#define MEMITEM(ptr) (struct rt_memheap_item*)((rt_uint8_t*)ptr - RT_MEMHEAP_SIZE)
#ifdef RT_USING_MEMTRACE
/**
* @brief This function will set a new name for memheap.
*
* @param item is a pointer point to a memheap object.
*
* @param name is the new name to be set.
*/
rt_inline
void
rt_memheap_setname
(
struct
rt_memheap_item
*
item
,
const
char
*
name
)
{
int
index
;
...
...
@@ -64,6 +71,13 @@ rt_inline void rt_memheap_setname(struct rt_memheap_item *item, const char *name
}
}
/**
* @brief This function will set a new name for memheap.
*
* @param ptr is a pointer point to a memheap object.
*
* @param name is the new name to be set.
*/
void
rt_mem_set_tag
(
void
*
ptr
,
const
char
*
name
)
{
struct
rt_memheap_item
*
item
;
...
...
@@ -76,16 +90,28 @@ void rt_mem_set_tag(void *ptr, const char *name)
}
#endif
/* RT_USING_MEMTRACE */
/*
* The initialized memory pool will be:
* +-----------------------------------+--------------------------+
* | whole freed memory block | Used Memory Block Tailer |
* +-----------------------------------+--------------------------+
/**
* @brief This function initializes a piece of memory called memheap.
*
* @note The initialized memory pool will be:
* +-----------------------------------+--------------------------+
* | whole freed memory block | Used Memory Block Tailer |
* +-----------------------------------+--------------------------+
*
* block_list --> whole freed memory block
*
* The length of Used Memory Block Tailer is 0,
* which is prevents block merging across list
*
* @param memheap is a pointer of the memheap object.
*
* @param name is the name of the memheap.
*
* @param start_addr is the start address of the memheap.
*
*
block_list --> whole freed memory block
*
@param size is the size of the memheap.
*
* The length of Used Memory Block Tailer is 0,
* which is prevents block merging across list
* @return RT_EOK
*/
rt_err_t
rt_memheap_init
(
struct
rt_memheap
*
memheap
,
const
char
*
name
,
...
...
@@ -165,6 +191,13 @@ rt_err_t rt_memheap_init(struct rt_memheap *memheap,
}
RTM_EXPORT
(
rt_memheap_init
);
/**
* @brief This function will remove a memheap from the system.
*
* @param heap is a pointer of memheap object.
*
* @return RT_EOK
*/
rt_err_t
rt_memheap_detach
(
struct
rt_memheap
*
heap
)
{
RT_ASSERT
(
heap
);
...
...
@@ -179,6 +212,15 @@ rt_err_t rt_memheap_detach(struct rt_memheap *heap)
}
RTM_EXPORT
(
rt_memheap_detach
);
/**
* @brief Allocate a block of memory with a minimum of 'size' bytes on memheap.
*
* @param heap is a pointer for memheap object.
*
* @param size is the minimum size of the requested block in bytes.
*
* @return the pointer to allocated memory or NULL if no free memory was found.
*/
void
*
rt_memheap_alloc
(
struct
rt_memheap
*
heap
,
rt_size_t
size
)
{
rt_err_t
result
;
...
...
@@ -336,6 +378,18 @@ void *rt_memheap_alloc(struct rt_memheap *heap, rt_size_t size)
}
RTM_EXPORT
(
rt_memheap_alloc
);
/**
* @brief This function will change the size of previously allocated memory block.
*
* @param heap is a pointer to the memheap object, which will reallocate
* memory from the block
*
* @param ptr is a pointer to start address of memory.
*
* @param newsize is the required new size.
*
* @return the changed memory block address.
*/
void
*
rt_memheap_realloc
(
struct
rt_memheap
*
heap
,
void
*
ptr
,
rt_size_t
newsize
)
{
rt_err_t
result
;
...
...
@@ -556,6 +610,12 @@ void *rt_memheap_realloc(struct rt_memheap *heap, void *ptr, rt_size_t newsize)
}
RTM_EXPORT
(
rt_memheap_realloc
);
/**
* @brief This function will release the allocated memory block by
* rt_malloc. The released memory block is taken back to system heap.
*
* @param ptr the address of memory which will be released.
*/
void
rt_memheap_free
(
void
*
ptr
)
{
rt_err_t
result
;
...
...
@@ -680,7 +740,13 @@ static void _memheap_dump_tag(struct rt_memheap_item *item)
rt_kprintf
(
"%.*s"
,
2
*
sizeof
(
void
*
),
name
);
}
/**
* @brief This function will print the memheap infomation.
*
* @param heap is the pointer to the memheap to get information.
*
* @return 0
*/
int
rt_memheap_dump
(
struct
rt_memheap
*
heap
)
{
struct
rt_memheap_item
*
item
,
*
end
;
...
...
@@ -757,6 +823,13 @@ MSH_CMD_EXPORT(memheaptrace, dump memory trace information);
#ifdef RT_USING_MEMHEAP_AS_HEAP
static
struct
rt_memheap
_heap
;
/**
* @brief This function initializes a heap for system.
*
* @param begin_addr is the start address of the memory.
*
* @param end_addr is the end address of the memory.
*/
void
rt_system_heap_init
(
void
*
begin_addr
,
void
*
end_addr
)
{
RT_ASSERT
((
rt_uint32_t
)
end_addr
>
(
rt_uint32_t
)
begin_addr
);
...
...
@@ -768,6 +841,11 @@ void rt_system_heap_init(void *begin_addr, void *end_addr)
(
rt_uint32_t
)
end_addr
-
(
rt_uint32_t
)
begin_addr
);
}
/**
* @brief Allocate a block of memory with a minimum of 'size' bytes.
*
* @param size is the minimum size of the requested block in bytes.
*/
void
*
rt_malloc
(
rt_size_t
size
)
{
void
*
ptr
;
...
...
@@ -804,7 +882,6 @@ void *rt_malloc(rt_size_t size)
}
}
#ifdef RT_USING_MEMTRACE
if
(
ptr
==
RT_NULL
)
{
...
...
@@ -826,12 +903,27 @@ void *rt_malloc(rt_size_t size)
}
RTM_EXPORT
(
rt_malloc
);
/**
* @brief This function will release the previously allocated memory block by
* rt_malloc. The released memory block is taken back to system heap.
*
* @param rmem the address of memory which will be released.
*/
void
rt_free
(
void
*
rmem
)
{
rt_memheap_free
(
rmem
);
}
RTM_EXPORT
(
rt_free
);
/**
* @brief This function will change the size of previously allocated memory block.
*
* @param rmem is the pointer to memory allocated by rt_malloc.
*
* @param newsize is the required new size.
*
* @return the changed memory block address.
*/
void
*
rt_realloc
(
void
*
rmem
,
rt_size_t
newsize
)
{
void
*
new_ptr
;
...
...
@@ -892,6 +984,19 @@ void *rt_realloc(void *rmem, rt_size_t newsize)
}
RTM_EXPORT
(
rt_realloc
);
/**
* @brief This function will contiguously allocate enough space for count objects
* that are size bytes of memory each and returns a pointer to the allocated
* memory.
*
* @note The allocated memory is filled with bytes of value zero.
*
* @param count is the number of objects to allocate.
*
* @param size is the size of one object to allocate.
*
* @return pointer to allocated memory pointer.
*/
void
*
rt_calloc
(
rt_size_t
count
,
rt_size_t
size
)
{
void
*
ptr
;
...
...
@@ -922,6 +1027,16 @@ void *rt_calloc(rt_size_t count, rt_size_t size)
}
RTM_EXPORT
(
rt_calloc
);
/**
* @brief This function will caculate the total memory, the used memory, and
* the max used memory.
*
* @param total is a pointer to get the total size of the memory.
*
* @param used is a pointer to get the size of memory used.
*
* @param max_used is a pointer to get the maximum memory used.
*/
void
rt_memory_info
(
rt_uint32_t
*
total
,
rt_uint32_t
*
used
,
rt_uint32_t
*
max_used
)
...
...
@@ -940,12 +1055,16 @@ void rt_memory_info(rt_uint32_t *total,
#ifdef RT_USING_MEMTRACE
/**
* @brief This function will print the used memheap infomation.
*
* @param memheap is a pointer of the memheap object.
*/
void
dump_used_memheap
(
struct
rt_memheap
*
mh
)
{
struct
rt_memheap_item
*
header_ptr
;
rt_uint32_t
block_size
;
rt_kprintf
(
"
\n
memory heap address:
\n
"
);
rt_kprintf
(
"heap_ptr: 0x%08x
\n
"
,
mh
->
start_addr
);
rt_kprintf
(
"free : 0x%08x
\n
"
,
mh
->
available_size
);
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录