cOMS/platform/win32/Allocation.h

56 lines
1.2 KiB
C

/**
* Jingga
*
* @copyright Jingga
* @license OMS License 2.0
* @version 1.0.0
* @link https://jingga.app
*/
#ifndef TOS_PLATFORM_WIN32_ALLOCATION_H
#define TOS_PLATFORM_WIN32_ALLOCATION_H
#include <malloc.h>
#include <windows.h>
#include "../../stdlib/Types.h"
inline
void* aligned_alloc(size_t alignment, size_t size) {
return _aligned_malloc(size, alignment);
}
inline
void aligned_free(void** ptr) {
_aligned_free(*ptr);
*ptr = NULL;
}
inline
void* platform_alloc(size_t size)
{
return VirtualAlloc(NULL, size, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
}
inline
void* platform_alloc_aligned(size_t size, int32 alignment)
{
void* ptr = VirtualAlloc(NULL, size + alignment + sizeof(void*), MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
void* aligned_ptr = (void*)(((uintptr_t)ptr + alignment + sizeof(void*) - 1) & ~(alignment - 1));
((void**) aligned_ptr)[-1] = ptr;
return aligned_ptr;
}
inline
void platform_free(void** ptr, size_t) {
VirtualFree(*ptr, 0, MEM_RELEASE);
*ptr = NULL;
}
inline
void platform_aligned_free(void** aligned_ptr, size_t) {
void* ptr = ((void**) *aligned_ptr)[-1];
VirtualFree(ptr, 0, MEM_RELEASE);
*aligned_ptr = NULL;
}
#endif