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wip: initial working windows remap

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daanx 2023-04-29 15:37:14 -07:00
parent e4c914565d
commit 1246f46625
7 changed files with 287 additions and 53 deletions
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7
include/mimalloc/internal.h
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@ -116,7 +116,7 @@ size_t _mi_os_large_page_size(void);
void* _mi_os_alloc_huge_os_pages(size_t pages, int numa_node, mi_msecs_t max_secs, size_t* pages_reserved, size_t* psize, mi_memid_t* memid);
void* _mi_os_alloc_remappable(size_t size, size_t future_reserve, size_t alignment, mi_memid_t* memid, mi_stats_t* stats);
void* _mi_os_alloc_remappable(size_t size, size_t alignment, mi_memid_t* memid, mi_stats_t* stats);
void* _mi_os_remap(void* p, size_t size, size_t newsize, mi_memid_t* memid, mi_stats_t* stats);
@ -304,6 +304,11 @@ static inline uintptr_t _mi_align_up(uintptr_t sz, size_t alignment) {
}
}
// Align upwards for a pointer
static inline void* _mi_align_up_ptr(void* p, size_t alignment) {
return (void*)_mi_align_up((uintptr_t)p, alignment);
}
// Divide upwards: `s <= _mi_divide_up(s,d)*d < s+d`.
static inline uintptr_t _mi_divide_up(uintptr_t size, size_t divider) {
mi_assert_internal(divider != 0);

7
include/mimalloc/prim.h
View file

@ -72,15 +72,16 @@ int _mi_prim_alloc_huge_os_pages(void* hint_addr, size_t size, int numa_node, bo
// Allocate remappable memory that can be used with `_mi_prim_remap`.
// Return `EINVAL` if this is not supported.
// The returned memory is always committed.
// The returned memory is always committed and aligned at `alignment`.
// If `is_pinned` is `true` the memory cannot be decommitted or reset.
// The `remap_info` argument can be used to store OS specific information that is passed to `_mi_prim_remap` and `_mi_prim_free_remappable`.
int _mi_prim_alloc_remappable(size_t size, size_t future_reserve, bool* is_pinned, bool* is_zero, void** addr, void** remap_info );
int _mi_prim_alloc_remappable(size_t size, size_t alignment, bool* is_pinned, bool* is_zero, void** addr, void** remap_info );
// Remap remappable memory. Return `EINVAL` if this is not supported.
// If remapped, the alignment should be preserved.
// pre: `addr != NULL` and previously allocated using `_mi_prim_remap` or `_mi_prim_alloc_remappable`.
// `newsize > 0`, `size > 0`, `alignment > 0`, `allow_large != NULL`, `newaddr != NULL`.
int _mi_prim_remap(void* addr, size_t size, size_t newsize, bool* extend_is_zero, void** newaddr, void** remap_info );
int _mi_prim_remap(void* addr, size_t size, size_t newsize, size_t alignment, bool* extend_is_zero, void** newaddr, void** remap_info );
// Free remappable memory. Return `EINVAL` if this is not supported.
// pre: `addr != NULL` and previously allocated using `_mi_prim_remap` or `_mi_prim_alloc_remappable`.