source: src/examples/gc_no_raii/src/gcpointers.c @ 08a40fd

#include "gcpointers.h"

#include "gc.h"
#include "internal/collector.h"
#include "internal/object_header.h"
// #include "internal/state.h"

void register_ptr(gcpointer_t* this)
{
        if(gcpointer_null(this)) return;

        _Bool managed = gc_is_managed(this);

        if(managed)
        {
                gc_object_header* obj = gc_get_object_for_ref(gc_get_state(), (void*)this);
                check(obj);
                check(gc_obj_is_valide(obj));
                check(gc_is_managed(this) == gc_is_managed(obj->type_chain) || obj->type_chain == NULL);
                this->next = obj->type_chain;
                obj->type_chain = this;
                check(obj->is_valide());
        }
        else
        {
                gc_object_header* obj = gc_get_object_ptr((void*)this->ptr);
                check(obj);
                check(gc_obj_is_valide(obj));
                check(gc_is_managed(this) == gc_is_managed(obj->root_chain) || obj->root_chain == NULL);
                this->next = obj->root_chain;
                obj->root_chain = this;
                check(gc_obj_is_valide(obj));
        }
}

void unregister_ptr(gcpointer_t* this)
{
        if(gcpointer_null(this)) return;

        gcpointer_t** prev_next_ptr = gc_find_previous_ref(this);
        check((*prev_next_ptr) == this);

        (*prev_next_ptr) = this->next;
}

void gcpointer_ctor(gcpointer_t* this)
{
        this->ptr = (intptr_t)NULL;
        this->next = NULL;
}

void gcpointer_ctor(gcpointer_t* this, void* address)
{
        this->ptr = (intptr_t)address;
        this->next = NULL;

        register_ptr(this);
}

void gcpointer_ctor(gcpointer_t* this, gcpointer_t* other)
{
        this->ptr = other->ptr;
        this->next = NULL;

        register_ptr(this);
}

void gcpointer_dtor(gcpointer_t* this)
{
        unregister_ptr(this);
}

gcpointer_t* gcpointer_assign(gcpointer_t* this, gcpointer_t* rhs)
{
        if(this != rhs)
        {
                unregister_ptr(this);

                this->ptr = rhs->ptr;

                register_ptr(this);
        }

        return this;
}

//Logical operators
int gcpointer_equal(gcpointer_t* this, gcpointer_t* rhs)
{
        return this->ptr == rhs->ptr;
}

int gcpointer_not_equal(gcpointer_t* this, gcpointer_t* rhs)
{
        return this->ptr != rhs->ptr;
}

int gcpointer_null(gcpointer_t* this)
{
        return this->ptr == (intptr_t)NULL;
}