内存池结构体

📚 本节导读

用途：内存池控制块结构

来源：kernel/include/os_dummy.h:260

一、结构体定义

struct dummy_mempool
{
    void          *start_addr_dummy;            /* Memory pool start. */
    void          *free_list_dummy;             /* Avaliable memory blocks list. */
    os_size_t      size_dummy;                  /* Size of memory pool */
    os_size_t      blk_size_dummy;              /* Size of memory blocks, maybe not the size for users */
    os_size_t      blk_total_num_dummy;         /* Numbers of memory block */
    os_size_t      blk_free_num_dummy;          /* Numbers of free memory block */
    os_list_node_t task_list_head_dummy;        /* Task suspend on this memory pool */
    os_list_node_t resource_node_dummy;         /* Node in resource list */
    uint8_t        object_alloc_type_dummy;     /* Indicates whether memory is allocated */
    uint8_t        object_inited_dummy;         /* Whether inited. */
    char           name_dummy[OS_NAME_MAX + 1]; /* mempool name */

    os_spinlock_t lock_dummy; /* Spin lock used under SMP */
};
typedef struct dummy_mempool dummy_mempool_t;

二、内存算法枚举

enum os_mem_alg
{
#ifdef OS_USING_ALG_FIRSTFIT
    OS_MEM_ALG_FIRSTFIT,
#endif
#ifdef OS_USING_ALG_BUDDY
    OS_MEM_ALG_BUDDY,
#endif
    OS_MEM_ALG_DEFAULT /*Use default memory algorithm */
};