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[Core] Improve CowData and Memory metadata alignment.

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This commit is contained in:
bruvzg
2024-02-01 10:15:08 +02:00
parent 63d6bda8e9
commit 7bcb419149
3 changed files with 99 additions and 52 deletions
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24
core/os/memory.cpp
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@ -72,23 +72,23 @@ void *Memory::alloc_static(size_t p_bytes, bool p_pad_align) {
bool prepad = p_pad_align;
#endif
void *mem = malloc(p_bytes + (prepad ? PAD_ALIGN : 0));
void *mem = malloc(p_bytes + (prepad ? DATA_OFFSET : 0));
ERR_FAIL_NULL_V(mem, nullptr);
alloc_count.increment();
if (prepad) {
uint64_t *s = (uint64_t *)mem;
*s = p_bytes;
uint8_t *s8 = (uint8_t *)mem;
uint64_t *s = (uint64_t *)(s8 + SIZE_OFFSET);
*s = p_bytes;
#ifdef DEBUG_ENABLED
uint64_t new_mem_usage = mem_usage.add(p_bytes);
max_usage.exchange_if_greater(new_mem_usage);
#endif
return s8 + PAD_ALIGN;
return s8 + DATA_OFFSET;
} else {
return mem;
}
@ -108,8 +108,8 @@ void *Memory::realloc_static(void *p_memory, size_t p_bytes, bool p_pad_align) {
#endif
if (prepad) {
mem -= PAD_ALIGN;
uint64_t *s = (uint64_t *)mem;
mem -= DATA_OFFSET;
uint64_t *s = (uint64_t *)(mem + SIZE_OFFSET);
#ifdef DEBUG_ENABLED
if (p_bytes > *s) {
@ -126,14 +126,14 @@ void *Memory::realloc_static(void *p_memory, size_t p_bytes, bool p_pad_align) {
} else {
*s = p_bytes;
mem = (uint8_t *)realloc(mem, p_bytes + PAD_ALIGN);
mem = (uint8_t *)realloc(mem, p_bytes + DATA_OFFSET);
ERR_FAIL_NULL_V(mem, nullptr);
s = (uint64_t *)mem;
s = (uint64_t *)(mem + SIZE_OFFSET);
*s = p_bytes;
return mem + PAD_ALIGN;
return mem + DATA_OFFSET;
}
} else {
mem = (uint8_t *)realloc(mem, p_bytes);
@ -158,10 +158,10 @@ void Memory::free_static(void *p_ptr, bool p_pad_align) {
alloc_count.decrement();
if (prepad) {
mem -= PAD_ALIGN;
mem -= DATA_OFFSET;
#ifdef DEBUG_ENABLED
uint64_t *s = (uint64_t *)mem;
uint64_t *s = (uint64_t *)(mem + SIZE_OFFSET);
mem_usage.sub(*s);
#endif