#ifndef HAKMEM_POOL_TLS_ARENA_H
#define HAKMEM_POOL_TLS_ARENA_H

#include <stddef.h>

// Configuration
#define POOL_SIZE_CLASSES 7
extern int g_arena_max_growth_level;     // 0..N (3 => 8MB cap)
extern size_t g_arena_initial_chunk_size; // bytes (default 1MB)

// TLS Arena Chunk
typedef struct {
    void*  chunk_base;      // mmap base address (page-aligned)
    size_t chunk_size;      // Current chunk size (1/2/4/8 MB)
    size_t offset;          // Next carve offset
    int    growth_level;    // 0=1MB, 1=2MB, 2=4MB, 3=8MB
} PoolChunk;

// API
// Carve 'count' blocks from TLS Arena for 'class_idx'
// Returns number of blocks carved (0 on OOM)
int arena_batch_carve(int class_idx, void** out_blocks, int count);

// Thread cleanup (munmap all chunks)
void arena_cleanup_thread(void);

#ifdef POOL_TLS_ARENA_DEBUG
void arena_print_stats(void);
#endif

#endif // HAKMEM_POOL_TLS_ARENA_H