allocator.h

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#ifndef __xwos_mm_mempool_allocator_h__
#define __xwos_mm_mempool_allocator_h__
 
#include <xwos/standard.h>
#include <xwos/mm/common.h>
 
#include <xwos/mm/mempool/page.h>
#include <xwos/mm/mempool/objcache.h>
 
#define XWMM_MEMPOOL_PAGE_SIZE          (4096U) 
#define XWMM_MEMPOOL_OC_8_PAGE_ODR      (0U) 
#define XWMM_MEMPOOL_OC_16_PAGE_ODR     (0U) 
#define XWMM_MEMPOOL_OC_32_PAGE_ODR     (0U) 
#define XWMM_MEMPOOL_OC_64_PAGE_ODR     (0U) 
#define XWMM_MEMPOOL_OC_96_PAGE_ODR     (1U) 
#define XWMM_MEMPOOL_OC_128_PAGE_ODR    (0U) 
#define XWMM_MEMPOOL_OC_160_PAGE_ODR    (0U) 
#define XWMM_MEMPOOL_OC_192_PAGE_ODR    (0U) 
#define XWMM_MEMPOOL_OC_256_PAGE_ODR    (0U) 
#define XWMM_MEMPOOL_OC_320_PAGE_ODR    (1U) 
#define XWMM_MEMPOOL_OC_384_PAGE_ODR    (1U) 
#define XWMM_MEMPOOL_OC_512_PAGE_ODR    (1U) 
#define XWMM_MEMPOOL_OC_768_PAGE_ODR    (0U) 
#define XWMM_MEMPOOL_OC_1024_PAGE_ODR   (0U) 
#define XWMM_MEMPOOL_OC_2048_PAGE_ODR   (1U) 
#if (XWMM_MEMPOOL_PAGE_SIZE & XWMM_UNALIGNED_MASK)
#  error "Page size must be aligned to XWMM_ALIGNMENT!"
#endif
 
// cppcheck-suppress [misra-c2012-20.7]
#define XWMM_MEMPOOL_RAWOBJ_DEF(name, pgodr) \
        xwu8_t name[sizeof(struct xwmm_mempool) + \
                    sizeof(struct xwmm_mempool_page_odrbtree[(pgodr) + 1U]) + \
                    sizeof(struct xwmm_mempool_page[1U << (pgodr)])]
 
struct xwmm_mempool {
        const char * name; 
        struct xwmm_mempool_page_allocator pa; 
        struct xwmm_mempool_objcache oc_8; 
        struct xwmm_mempool_objcache oc_16; 
        struct xwmm_mempool_objcache oc_32; 
        struct xwmm_mempool_objcache oc_64; 
        struct xwmm_mempool_objcache oc_96; 
        struct xwmm_mempool_objcache oc_128; 
        struct xwmm_mempool_objcache oc_160; 
        struct xwmm_mempool_objcache oc_192; 
        struct xwmm_mempool_objcache oc_256; 
        struct xwmm_mempool_objcache oc_320; 
        struct xwmm_mempool_objcache oc_384; 
        struct xwmm_mempool_objcache oc_512; 
        struct xwmm_mempool_objcache oc_768; 
        struct xwmm_mempool_objcache oc_1024; 
        struct xwmm_mempool_objcache oc_2048; 
        xwu8_t rem[0]; 
};
 
xwer_t xwmm_mempool_init(struct xwmm_mempool * mp, const char * name,
                         xwptr_t origin, xwsz_t size, xwsz_t pgodr,
                         xwsz_t pre, void ** membuf);
 
xwer_t xwmm_mempool_malloc(struct xwmm_mempool * mp, xwsz_t size,
                           void ** membuf);
 
xwer_t xwmm_mempool_free(struct xwmm_mempool * mp, void * mem);
 
xwer_t xwmm_mempool_realloc(struct xwmm_mempool * mp, xwsz_t size,
                            void ** membuf);
 
xwer_t xwmm_mempool_memalign(struct xwmm_mempool * mp,
                             xwsz_t alignment, xwsz_t size,
                             void ** membuf);
 
#endif /* xwos/mm/mempool/allocator.h */