base/base_stack_win32.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

#ifndef BASE_STACK_WIN32_H
#define BASE_STACK_WIN32_H

// request a page from the operating system
internal MemStack *
win32_stack_create(u64 capacity)
{
    MemStack *stack = (MemStack *)VirtualAlloc(
                                               NULL,
                                               capacity + sizeof(MemStack),
                                               MEM_COMMIT | MEM_RESERVE,
                                               PAGE_READWRITE);
    
    if(!stack)
    {
        Log("Failed to receive a memory adress from the operating system");
        return NULL;
    }
    
    stack->capacity       = capacity;
    stack->base_position  = (u8 *)stack + sizeof(MemStack);
    stack->current_offset = 0;
    return stack;
}

internal void *
win32_stack_destroy(MemStack *stack)
{
    b32 result = VirtualFree(stack,
                             0, // stands for the byte of commited pages
                             MEM_RELEASE);
    
    if(!result)
    {
        Log("Failed to receive a memory adress from the operating system");
    }
}

#endif /* BASE_STACK_WIN32_H  */