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- #include "memory.h"
- #include "core/error_macros.h"
- #include "core/os/copymem.h"
- #include "core/safe_refcount.h"
- #include <stdio.h>
- #include <stdlib.h>
- void *operator new(size_t p_size, const char *p_description) {
- return Memory::alloc_static(p_size, false);
- }
- void *operator new(size_t p_size, void *(*p_allocfunc)(size_t p_size)) {
- return p_allocfunc(p_size);
- }
- #ifdef _MSC_VER
- void operator delete(void *p_mem, const char *p_description) {
- ERR_EXPLAINC("Call to placement delete should not happen.");
- CRASH_NOW();
- }
- void operator delete(void *p_mem, void *(*p_allocfunc)(size_t p_size)) {
- ERR_EXPLAINC("Call to placement delete should not happen.");
- CRASH_NOW();
- }
- void operator delete(void *p_mem, void *p_pointer, size_t check, const char *p_description) {
- ERR_EXPLAINC("Call to placement delete should not happen.");
- CRASH_NOW();
- }
- #endif
- #ifdef DEBUG_ENABLED
- uint64_t Memory::mem_usage = 0;
- uint64_t Memory::max_usage = 0;
- #endif
- uint64_t Memory::alloc_count = 0;
- void *Memory::alloc_static(size_t p_bytes, bool p_pad_align) {
- #ifdef DEBUG_ENABLED
- bool prepad = true;
- #else
- bool prepad = p_pad_align;
- #endif
- void *mem = malloc(p_bytes + (prepad ? PAD_ALIGN : 0));
- ERR_FAIL_COND_V(!mem, NULL);
- atomic_increment(&alloc_count);
- if (prepad) {
- uint64_t *s = (uint64_t *)mem;
- *s = p_bytes;
- uint8_t *s8 = (uint8_t *)mem;
- #ifdef DEBUG_ENABLED
- atomic_add(&mem_usage, p_bytes);
- atomic_exchange_if_greater(&max_usage, mem_usage);
- #endif
- return s8 + PAD_ALIGN;
- } else {
- return mem;
- }
- }
- void *Memory::realloc_static(void *p_memory, size_t p_bytes, bool p_pad_align) {
- if (p_memory == NULL) {
- return alloc_static(p_bytes, p_pad_align);
- }
- uint8_t *mem = (uint8_t *)p_memory;
- #ifdef DEBUG_ENABLED
- bool prepad = true;
- #else
- bool prepad = p_pad_align;
- #endif
- if (prepad) {
- mem -= PAD_ALIGN;
- uint64_t *s = (uint64_t *)mem;
- #ifdef DEBUG_ENABLED
- if (p_bytes > *s) {
- atomic_add(&mem_usage, p_bytes - *s);
- atomic_exchange_if_greater(&max_usage, mem_usage);
- } else {
- atomic_sub(&mem_usage, *s - p_bytes);
- }
- #endif
- if (p_bytes == 0) {
- free(mem);
- return NULL;
- } else {
- *s = p_bytes;
- mem = (uint8_t *)realloc(mem, p_bytes + PAD_ALIGN);
- ERR_FAIL_COND_V(!mem, NULL);
- s = (uint64_t *)mem;
- *s = p_bytes;
- return mem + PAD_ALIGN;
- }
- } else {
- mem = (uint8_t *)realloc(mem, p_bytes);
- ERR_FAIL_COND_V(mem == NULL && p_bytes > 0, NULL);
- return mem;
- }
- }
- void Memory::free_static(void *p_ptr, bool p_pad_align) {
- ERR_FAIL_COND(p_ptr == NULL);
- uint8_t *mem = (uint8_t *)p_ptr;
- #ifdef DEBUG_ENABLED
- bool prepad = true;
- #else
- bool prepad = p_pad_align;
- #endif
- atomic_decrement(&alloc_count);
- if (prepad) {
- mem -= PAD_ALIGN;
- #ifdef DEBUG_ENABLED
- uint64_t *s = (uint64_t *)mem;
- atomic_sub(&mem_usage, *s);
- #endif
- free(mem);
- } else {
- free(mem);
- }
- }
- uint64_t Memory::get_mem_available() {
- return -1;
- }
- uint64_t Memory::get_mem_usage() {
- #ifdef DEBUG_ENABLED
- return mem_usage;
- #else
- return 0;
- #endif
- }
- uint64_t Memory::get_mem_max_usage() {
- #ifdef DEBUG_ENABLED
- return max_usage;
- #else
- return 0;
- #endif
- }
- _GlobalNil::_GlobalNil() {
- color = 1;
- left = this;
- right = this;
- parent = this;
- }
- _GlobalNil _GlobalNilClass::_nil;
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