50 lines
1.3 KiB
C
Executable File
50 lines
1.3 KiB
C
Executable File
#pragma once
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#include "types.h"
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#include "util.h"
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#include "assert.h"
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#include "spinlock.h"
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#define MAGIC_NUM 0xFEDCBA98 //!< mm的幻数
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#define MEM_HEAP_NAME 4 //!< 名字长度
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typedef struct mem_heap
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{
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uint32_t magic;
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union
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{
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char name[MEM_HEAP_NAME];
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// pid_t pid;
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};
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struct mem_heap *next;
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struct mem_heap *prev;
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umword_t size;
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uint16_t used;
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} mem_heap_t;
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#define MEM_HEAP_STRUCT_SIZE ALIGN(sizeof(struct mem_heap), 4) //!< 对齐大小
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typedef struct mem
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{
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struct mem_heap *heap_start; //!< 开始位置
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struct mem_heap *heap_end; //!< 结束位置
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struct mem_heap *l_heap; //!< 空闲位置
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// uint16_t blong_user; //!< 属于用户
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spinlock_t lock;
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} mem_t;
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void mem_init(mem_t *_this);
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void mem_free(mem_t *_this, void *mem);
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void *mem_alloc(mem_t *_this, uint32_t size);
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int mem_heap_add(mem_t *_this, void *mem, uint32_t size);
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void *mem_split(mem_t *_this, void *mem, uint32_t size);
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void *mem_alloc_align(mem_t *_this, uint32_t size, uint32_t align);
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void mem_free_align(mem_t *_this, void *f_mem);
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size_t mem_get_free_size(mem_t *_this);
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struct mem_heap *mem_get_free(mem_t *_this, struct mem_heap *next,
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int32_t hope_size, uint32_t *ret_addr);
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#if MEM_TRACE
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void mem_trace(mem_t *_this);
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#endif
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