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remove MI_ALIGNMENT_MAX and add comments

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daan 2022-11-07 11:13:42 -08:00
parent 711aad7a75
commit 1f12c3dd12
6 changed files with 16 additions and 17 deletions
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9
include/mimalloc-types.h
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@ -139,7 +139,8 @@ typedef int32_t mi_ssize_t;
// Derived constants
#define MI_SEGMENT_SIZE (MI_ZU(1)<<MI_SEGMENT_SHIFT)
#define MI_SEGMENT_MASK (MI_SEGMENT_SIZE - 1)
#define MI_SEGMENT_ALIGN (MI_SEGMENT_SIZE)
#define MI_SEGMENT_MASK (MI_SEGMENT_ALIGN - 1)
#define MI_SMALL_PAGE_SIZE (MI_ZU(1)<<MI_SMALL_PAGE_SHIFT)
#define MI_MEDIUM_PAGE_SIZE (MI_ZU(1)<<MI_MEDIUM_PAGE_SHIFT)
@ -163,13 +164,13 @@ typedef int32_t mi_ssize_t;
#if (MI_LARGE_OBJ_WSIZE_MAX >= 655360)
#error "mimalloc internal: define more bins"
#endif
#if (MI_ALIGNMENT_MAX > MI_SEGMENT_SIZE/2)
#error "mimalloc internal: the max aligned boundary is too large for the segment size"
#endif
// Used as a special value to encode block sizes in 32 bits.
#define MI_HUGE_BLOCK_SIZE ((uint32_t)MI_HUGE_OBJ_SIZE_MAX)
// Alignments over MI_ALIGNMENT_MAX are allocated in dedicated huge page segments
#define MI_ALIGNMENT_MAX (MI_SEGMENT_SIZE >> 1)
// ------------------------------------------------------
// Mimalloc pages contain allocated blocks

1
include/mimalloc.h
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@ -166,7 +166,6 @@ mi_decl_export void mi_process_info(size_t* elapsed_msecs, size_t* user_msecs, s
// Note that `alignment` always follows `size` for consistency with unaligned
// allocation, but unfortunately this differs from `posix_memalign` and `aligned_alloc`.
// -------------------------------------------------------------------------------------
#define MI_ALIGNMENT_MAX (2*1024*1024UL) // maximum supported alignment is 1MiB
mi_decl_nodiscard mi_decl_export mi_decl_restrict void* mi_malloc_aligned(size_t size, size_t alignment) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(1) mi_attr_alloc_align(2);
mi_decl_nodiscard mi_decl_export mi_decl_restrict void* mi_malloc_aligned_at(size_t size, size_t alignment, size_t offset) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(1);