// tiny_mem_stats_box.h - Lightweight memory accounting for Tiny front boxes
//
// Purpose:
//   - Provide coarse-grained byte counters for major Tiny front allocations
//     (Unified Cache buffers, Warm Pool TLS state, Page Box TLS state,
//      TLS magazine/front caches, and policy/stats tables).
//   - Keep overhead near-zero: helpers are simple fetch-adds, typically called
//     at init time when the structures are allocated.
//
// Usage:
//   - Call tiny_mem_stats_add_*() at allocation/free sites (positive/negative).
//   - Call tiny_mem_stats_dump() when HAKMEM_TINY_MEM_DUMP is set to emit one
//     summary line to stderr (values reported in KB).

#ifndef TINY_MEM_STATS_BOX_H
#define TINY_MEM_STATS_BOX_H

#include <stddef.h>
#include <stdint.h>
#include <sys/types.h>

// Byte counters (signed to allow subtracting on free paths)
extern _Atomic long long g_tiny_mem_unified_cache_bytes;
extern _Atomic long long g_tiny_mem_warm_pool_bytes;
extern _Atomic long long g_tiny_mem_page_box_bytes;
extern _Atomic long long g_tiny_mem_tls_magazine_bytes;
extern _Atomic long long g_tiny_mem_policy_stats_bytes;

void tiny_mem_stats_add_unified(ssize_t bytes);
void tiny_mem_stats_add_warm(ssize_t bytes);
void tiny_mem_stats_add_pagebox(ssize_t bytes);
void tiny_mem_stats_add_tls_magazine(ssize_t bytes);
void tiny_mem_stats_add_policy_stats(ssize_t bytes);

// Dump one line summary (values in KB) if hooked by caller.
void tiny_mem_stats_dump(void);

#endif // TINY_MEM_STATS_BOX_H