source: examples/gc_no_raii/src/internal/object_header.h@ bcb14b5

#pragma once

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

#include "tools.h"

#ifndef NDEBUG
        static void* const CANARY_VALUE = (void*)0xCAFEBABACAFEBABA;
#endif

struct gcpointer_t;
struct gc_object_header;

struct gc_object_header
{
        #ifndef NDEBUG
                void* canary_start;
        #endif

        size_t          size;
        gcpointer_t*    root_chain;
        gcpointer_t*    type_chain;
        gc_object_header*       forward;
        bool                    is_forwarded;

        #ifndef NDEBUG
                void* canary_end;
        #endif
};

void ctor(gc_object_header* const this, size_t size);
void copy_ctor(gc_object_header* const this, const gc_object_header* const other);

static inline gc_object_header* placement_ctor(void* address, size_t size)
{
        gc_object_header* const this = (gc_object_header* const) address;
        ctor(this, size);
        return this;
}

static inline gc_object_header* placement_copy_ctor(void* address, const gc_object_header* const other)
{
        gc_object_header* const this = (gc_object_header* const) address;
        copy_ctor(this, other);
        return this;
}

#ifndef NDEBUG
        bool is_valid(const gc_object_header* const this);
#endif