kiper220/mimalloc
1
0
Fork 0
mirror of https://github.com/microsoft/mimalloc.git synced 2025-07-07 11:58:41 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

Use standard _Atomic declarations and clean up atomic operations

Browse source
This commit is contained in:
daan 2019-08-25 22:59:12 -07:00
parent b86c851cca
commit e8664001f7
9 changed files with 165 additions and 159 deletions
Download patch file Download diff file Expand all files Collapse all files

13
src/page.c
View file

@ -49,11 +49,12 @@ static size_t mi_page_list_count(mi_page_t* page, mi_block_t* head) {
return count;
}
/*
// Start of the page available memory
static inline uint8_t* mi_page_area(const mi_page_t* page) {
return _mi_page_start(_mi_page_segment(page), page, NULL);
}
*/
static bool mi_page_list_is_valid(mi_page_t* page, mi_block_t* p) {
size_t psize;
@ -126,7 +127,7 @@ void _mi_page_use_delayed_free(mi_page_t* page, mi_delayed_t delay ) {
}
}
while((mi_tf_delayed(tfreex) != mi_tf_delayed(tfree)) && // avoid atomic operation if already equal
!mi_atomic_compare_exchange((volatile uintptr_t*)&page->thread_free, tfreex, tfree));
!mi_atomic_cas_weak(mi_atomic_cast(uintptr_t,&page->thread_free), tfreex, tfree));
}
@ -147,7 +148,7 @@ static void mi_page_thread_free_collect(mi_page_t* page)
tfree = page->thread_free;
head = mi_tf_block(tfree);
tfreex = mi_tf_set_block(tfree,NULL);
} while (!mi_atomic_compare_exchange((volatile uintptr_t*)&page->thread_free, tfreex, tfree));
} while (!mi_atomic_cas_weak(mi_atomic_cast(uintptr_t,&page->thread_free), tfreex, tfree));
// return if the list is empty
if (head == NULL) return;
@ -166,7 +167,7 @@ static void mi_page_thread_free_collect(mi_page_t* page)
page->free = head;
// update counts now
mi_atomic_subtract(&page->thread_freed, count);
mi_atomic_subu(&page->thread_freed, count);
page->used -= count;
}
@ -257,7 +258,7 @@ void _mi_heap_delayed_free(mi_heap_t* heap) {
mi_block_t* block;
do {
block = (mi_block_t*)heap->thread_delayed_free;
} while (block != NULL && !mi_atomic_compare_exchange_ptr((volatile void**)&heap->thread_delayed_free, NULL, block));
} while (block != NULL && !mi_atomic_cas_ptr_weak(mi_atomic_cast(void*,&heap->thread_delayed_free), NULL, block));
// and free them all
while(block != NULL) {
@ -270,7 +271,7 @@ void _mi_heap_delayed_free(mi_heap_t* heap) {
do {
dfree = (mi_block_t*)heap->thread_delayed_free;
mi_block_set_nextx(heap->cookie, block, dfree);
} while (!mi_atomic_compare_exchange_ptr((volatile void**)&heap->thread_delayed_free, block, dfree));
} while (!mi_atomic_cas_ptr_weak(mi_atomic_cast(void*,&heap->thread_delayed_free), block, dfree));
}
block = next;