#pragma once
/**
 * @file tempFXAlloc.h
 * @author felex67 (admin@felexdev.ru)
 * @brief FXAlloc - fast pooled allocator-profiler
 * @version 0.0.1 dev
 * @date 2026-05-06
 * 
 * License: Apache 2.0
 * */


#include <stdint.h>

#ifdef _WIN32
    // Windows
    #include <windows.h>
    #define thread_local __declspec(thread)
    typedef HANDLE fxsync_t;
#else
    // Linux
    #include <pthread.h>
    #define thread_local __thread
    typedef pthread_mutex_t fxsync_t;
#endif //_WIN32

#pragma pack(push, 8)
    /**
     * @brief Memory block meta-data
     * size: 24 bytes
     */
    typedef struct FXMemoryBlock {
        FXMemoryBlock* next; ///< Next block in lifo
        FXMemoryBlock* list; ///< Next block total
        uint32_t thread_idx; ///< Thread index
        uint32_t grade_idx;  ///< Grade index
    } FXMemoryBlock;
#pragma pack(push, 8)


/**
 * @brief Grade pool
 * 
 */
typedef struct FXGradePool {
    FXMemoryBlock* prealloced;
    FXMemoryBlock* lifo;
    FXMemoryBlock* list_first;
    FXMemoryBlock* list_last;
    uint32_t ntotal;
    uint32_t nbusy;
    uint32_t nalloc;
    uint32_t nprealloc;
} FXGradePool;

#pragma pack(push, 8)
/**
 * @brief Thread memory pool
 * 
 */
typedef struct FXThreadPool {
    uint32_t isActive;
    uint32_t ngrades;
    FXGradePool grades[];
} FXThreadPool;
#pragma pack(pop)

typedef struct FXGlobalMemoryPool {
    FXThreadPool** pools;
    fxsync_t mutex;
} FXGlobalMemoryPool;