kiper220/mimalloc
1
0
Fork 0
mirror of https://github.com/microsoft/mimalloc.git synced 2025-07-12 14:18:42 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

merge from dev-reset

Browse source
This commit is contained in:
daanx 2023-04-04 16:44:07 -07:00
commit 24034c997c
18 changed files with 316 additions and 765 deletions
Download patch file Download diff file Expand all files Collapse all files

17
src/prim/unix/prim.c
View file

@ -313,12 +313,13 @@ static void* unix_mmap(void* addr, size_t size, size_t try_alignment, int protec
}
// Note: the `try_alignment` is just a hint and the returned pointer is not guaranteed to be aligned.
int _mi_prim_alloc(size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, void** addr) {
int _mi_prim_alloc(size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
mi_assert_internal(size > 0 && (size % _mi_os_page_size()) == 0);
mi_assert_internal(commit || !allow_large);
mi_assert_internal(try_alignment > 0);
int protect_flags = (commit ? (PROT_WRITE | PROT_READ) : PROT_NONE);
*is_zero = true;
int protect_flags = (commit ? (PROT_WRITE | PROT_READ) : PROT_NONE);
*addr = unix_mmap(NULL, size, try_alignment, protect_flags, false, allow_large, is_large);
return (*addr != NULL ? 0 : errno);
}
@ -348,16 +349,16 @@ int _mi_prim_commit(void* start, size_t size) {
return err;
}
int _mi_prim_decommit(void* start, size_t size, bool* decommitted) {
int _mi_prim_decommit(void* start, size_t size, bool* needs_recommit) {
int err = 0;
#if defined(MADV_DONTNEED) && !MI_DEBUG && !MI_SECURE
// decommit: use MADV_DONTNEED as it decreases rss immediately (unlike MADV_FREE)
// (on the other hand, MADV_FREE would be good enough.. it is just not reflected in the stats :-( )
*decommitted = false;
*needs_recommit = false;
err = unix_madvise(start, size, MADV_DONTNEED);
#else
// decommit: just disable access (also used in debug and secure mode to trap on illegal access)
*decommitted = true; // needs recommit to reuse the memory
*needs_recommit = true; // needs recommit to reuse the memory
err = mprotect(start, size, PROT_NONE);
if (err != 0) { err = errno; }
#endif
@ -413,8 +414,9 @@ static long mi_prim_mbind(void* start, unsigned long len, unsigned long mode, co
}
#endif
int _mi_prim_alloc_huge_os_pages(void* hint_addr, size_t size, int numa_node, void** addr) {
int _mi_prim_alloc_huge_os_pages(void* hint_addr, size_t size, int numa_node, bool* is_zero, void** addr) {
bool is_large = true;
*is_zero = true;
*addr = unix_mmap(hint_addr, size, MI_SEGMENT_SIZE, PROT_READ | PROT_WRITE, true, true, &is_large);
if (*addr != NULL && numa_node >= 0 && numa_node < 8*MI_INTPTR_SIZE) { // at most 64 nodes
unsigned long numa_mask = (1UL << numa_node);
@ -432,8 +434,9 @@ int _mi_prim_alloc_huge_os_pages(void* hint_addr, size_t size, int numa_node, vo
#else
int _mi_prim_alloc_huge_os_pages(void* hint_addr, size_t size, int numa_node, void** addr) {
int _mi_prim_alloc_huge_os_pages(void* hint_addr, size_t size, int numa_node, bool* is_zero, void** addr) {
MI_UNUSED(hint_addr); MI_UNUSED(size); MI_UNUSED(numa_node);
*is_zero = true;
*addr = NULL;
return ENOMEM;
}