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heap/multi_heap: added initial implementation of aligned alloc function

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This commit is contained in:
Felipe Neves
2019-11-13 09:24:08 +08:00
parent a05c00c2b3
commit d26ddaa644
3 changed files with 91 additions and 0 deletions
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19
components/heap/include/multi_heap.h
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@@ -29,6 +29,17 @@ extern "C" {
/** @brief Opaque handle to a registered heap */
typedef struct multi_heap_info *multi_heap_handle_t;
/**
* @brief allocate a chunk of memory with specific alignment
*
* @param heap Handle to a registered heap.
* @param size size in bytes of memory chunk
* @param alignment how the memory must be aligned
*
* @return pointer to the memory allocated, NULL on failure
*/
void *multi_heap_aligned_alloc(multi_heap_handle_t heap, size_t size, size_t alignment);
/** @brief malloc() a buffer in a given heap
*
* Semantics are the same as standard malloc(), only the returned buffer will be allocated in the specified heap.
@@ -40,6 +51,14 @@ typedef struct multi_heap_info *multi_heap_handle_t;
*/
void *multi_heap_malloc(multi_heap_handle_t heap, size_t size);
/** @brief free() a buffer aligned in a given heap.
*
* @param heap Handle to a registered heap.
* @param p NULL, or a pointer previously returned from multi_heap_aligned_alloc() for the same heap.
*/
void multi_heap_aligned_free(multi_heap_handle_t heap, void *p);
/** @brief free() a buffer in a given heap.
*
* Semantics are the same as standard free(), only the argument 'p' must be NULL or have been allocated in the specified heap.