base/base_stack_unix.h


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#ifndef BASE_STACK_UNIX_H
#define BASE_STACK_UNIX_H

internal MemStack *
unix_stack_create(u64 capacity)
{
  MemStack *stack = (MemStack *)mmap(
				     0,
				     capacity + sizeof(MemStack),
				     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(MemStack);
  stack->current_offset = 0;

  return stack;
}

internal void
unix_stack_destroy(MemStack *stack)
{
  if(!stack)
  {
      return;
  }

  munmap(stack, stack->capacity + sizeof(MemStack));
}

#endif /* BASE_STACK_UNIX_H  */