From 8ea6a3c8621287d11296b8300029f32a27743d9a Mon Sep 17 00:00:00 2001
From: nasr <nsrddyn@gmail.com>
Date: Thu, 16 Apr 2026 17:10:02 +0200
Subject: feature(checkpoint): checkpoint cleaning up base library

---
 source/base/base_stack.c | 187 -----------------------------------------------
 1 file changed, 187 deletions(-)
 delete mode 100755 source/base/base_stack.c

(limited to 'source/base/base_stack.c')

diff --git a/source/base/base_stack.c b/source/base/base_stack.c
deleted file mode 100755
index 7cf0570..0000000
--- a/source/base/base_stack.c
+++ /dev/null
@@ -1,187 +0,0 @@
-internal mem_stack *
-stack_create(u64 capacity)
-{
-    mem_stack *stack = (mem_stack *)mmap(
-    0,
-    capacity + sizeof(mem_stack),
-    PROT_READ | PROT_WRITE,
-    MAP_SHARED | MAP_ANONYMOUS,
-    -1,
-    0);
-
-    if (stack == MAP_FAILED)
-    {
-        return NULL;
-    }
-
-    stack->capacity       = capacity;
-    stack->base_position  = (u8 *)stack + sizeof(mem_stack);
-    stack->current_offset = 0;
-
-    return stack;
-}
-
-internal umm
-calculate_padding(umm pointer, umm alignment, umm header_size)
-{
-    umm modulo, padding;
-
-    if (!is_pow(alignment))
-    {
-        return 0;
-    }
-
-    modulo = pointer & (alignment - 1);
-
-    padding = 0;
-
-    if (0 == modulo)
-    {
-        padding = alignment - modulo;
-    }
-
-    if (padding < header_size)
-    {
-        header_size -= padding;
-
-        if ((header_size & (alignment - 1)) != 0)
-        {
-            padding += alignment * (1 + (header_size / alignment));
-        }
-        else
-        {
-            padding += alignment * (header_size / alignment);
-        }
-    }
-
-    return padding;
-}
-
-internal mem_stack *
-stack_push_align(mem_stack *stack, u64 size, umm alignment)
-{
-    umm padding = 0;
-
-    if (!is_pow(alignment))
-    {
-        return (0);
-    }
-
-    if (alignment > 128)
-    {
-        alignment = 128;
-    }
-
-    umm current_address = (umm)stack->base_position + stack->current_offset;
-    padding             = calculate_padding(current_address, alignment, sizeof(mem_stack_header));
-
-    if (stack->current_offset + padding + size > stack->capacity)
-    {
-        return 0;
-    }
-
-    stack->current_offset += padding;
-
-    umm               next_address = current_address + (umm)padding;
-    mem_stack_header *header       = (mem_stack_header *)(next_address - sizeof(mem_stack_header));
-    header->padding                = padding;
-
-    stack->current_offset += size;
-
-    return MemSet((void *)next_address, size);
-}
-internal void *
-stack_push(mem_stack *stack, umm size)
-{
-    return stack_push_align(stack, size, ARENA_ALIGN);
-}
-
-internal void
-stack_pop(mem_stack *stack, void *pointer)
-{
-    if (pointer != NULL)
-    {
-        umm               start, end, current_address;
-        mem_stack_header *header;
-        umm               prev_offset;
-
-        start           = (umm)stack->base_position;
-        end             = start + (umm)stack->capacity;
-        current_address = (umm)pointer;
-
-        if (!(start <= current_address && current_address < end))
-        {
-            if (0 && "Out of bounds memory address passed to stack allocator (free)")
-            {
-                return;
-            }
-            return;
-        }
-
-        if (current_address >= start + (umm)stack->base_position)
-        {
-            return;
-        }
-
-        header                = (mem_stack_header *)(current_address - sizeof(mem_stack_header));
-        prev_offset           = (size_t)(current_address - (umm)header->padding - start);
-        stack->current_offset = prev_offset;
-    }
-}
-
-internal mem_stack *
-stack_resize_align(mem_stack *stack, void *pointer, u64 old_size, u64 new_size, u64 alignment)
-{
-    if (pointer == NULL)
-    {
-        return stack_push_align(stack, new_size, alignment);
-    }
-    else if (new_size == 0)
-    {
-        stack_pop(stack, pointer);
-        return NULL;
-    }
-
-    umm   start, end, current_address;
-    umm   min_size = old_size < new_size ? old_size : new_size;
-    void *new_pointer;
-
-    start           = (umm)stack->base_position;
-    end             = start + (umm)stack->capacity;
-    current_address = (umm)pointer;
-    if (!(start <= current_address && current_address < end))
-    {
-        return NULL;
-    }
-
-    if (current_address >= start + (umm)stack->current_offset)
-    {
-        return NULL;
-    }
-
-    if (old_size == new_size)
-    {
-        return pointer;
-    }
-
-    new_pointer = stack_push_align(stack, new_size, alignment);
-    memmove(new_pointer, pointer, min_size);
-    return new_pointer;
-}
-
-internal void
-stack_pop_all(mem_stack *stack)
-{
-    stack->current_offset = 0;
-}
-
-internal void
-stack_destroy(mem_stack *stack)
-{
-    if (!stack)
-    {
-        return;
-    }
-
-    munmap(stack, stack->capacity + sizeof(mem_stack));
-}
-- 
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