gc.h

#ifndef cb_gc_h
#define cb_gc_h

#include <stddef.h>

typedef void (cb_deinit_fn)(void *);

typedef struct cb_gc_header {
	struct cb_gc_header *next;
	int mark;
	size_t size;
	cb_deinit_fn *deinit;
} cb_gc_header;

typedef struct cext_root cb_gc_hold_key;

void cb_gc_enable(void);
void cb_gc_mark(cb_gc_header *obj);
int cb_gc_is_marked(cb_gc_header *obj);
void cb_gc_adjust_refcount(cb_gc_header *obj, int amount);
size_t cb_gc_collect(void);
int cb_gc_should_collect(void);
void *cb_gc_alloc(size_t bytes, cb_deinit_fn deinit_fn);
void cb_gc_register(cb_gc_header *obj, size_t size, cb_deinit_fn *deinit_fn);
void cb_gc_update_size(struct cb_gc_header *obj, size_t size);
size_t cb_gc_size(struct cb_gc_header *obj);

struct cb_value;
void cb_gc_queue_mark(void *obj, void (*mark_fn)(void *obj));

cb_gc_hold_key *cb_gc_hold(void *obj, void (*mark_fn)(void *obj));
void cb_gc_release(cb_gc_hold_key *hold);

#endif