// tiny_destructors.h — Tiny の終了処理・統計ダンプを箱化
#ifndef TINY_DESTRUCTORS_H
#define TINY_DESTRUCTORS_H

#include <stdatomic.h>
#include <stdint.h>
#include <stdlib.h>

#include "hakmem_tiny.h"

typedef struct {
    _Atomic uint64_t prepare_calls;
    _Atomic uint64_t prepare_with_current_null;
    _Atomic uint64_t prepare_from_partial;
    _Atomic uint64_t free_made_current;
    _Atomic uint64_t page_retired;
} TinyHotHeapV2PageStats;

static inline int tiny_hotheap_v2_stats_enabled(void) {
    static int g = -1;
    if (__builtin_expect(g == -1, 0)) {
        const char* e = getenv("HAKMEM_TINY_HOTHEAP_V2_STATS");
        g = (e && *e && *e != '0') ? 1 : 0;
    }
    return g;
}

void tiny_destructors_configure_from_env(void);
void tiny_destructors_register_exit(void);

#endif  // TINY_DESTRUCTORS_H