/* define context */

#define ALLOCATE_SIZE 20000000
#define NEWN(n, type) (type*)(calloc(n, sizeof(type)))
#define ALLOC_DATA(context, dseg) ({ context->data[dseg] = context->heap; context->heap += sizeof(struct dseg); (struct dseg *)context->data[dseg]; })

enum Code {
    Code1,
    Code2,
    Code3,
};

enum UniqueData {
    Allocate,
    Tree,
    Queue,
    Worker,
};

struct Context {
    enum Code next;
    int codeNum;
    __code (**code) (struct Context*);
    void* heapStart;
    void* heap;
    long heapLimit;
    pthread_t thread;
    int thread_num;
    int dataNum;
    union Data **data;
};

union Data {
    struct Worker {
        int num;
        struct Context* contexts;
    } worker;
    struct Tree {
        struct Node* root;
    } tree;
    struct Node {
        // need to tree
        enum Code next;
        int key; // comparable data segment
        union Data* value;
        struct Node* left;
        struct Node* right;
        // need to balancing
        enum Color {
            Red,
            Black,
        } color;
    } node;
    struct Allocate {
        enum Code next;
        long size;
    } allocate;
};