typedef struct wordCount {
    struct wordCount *self;
    /* read task variable */
    long fd;
    long long read_filesize;
    CPU_TYPE read_cpu;

    long long size;             // remaining file size
    long division_size;    // for each word count task
    long division_out_size;
    long out_size;
    long out_size_;
    long task_num;         // remaining task count
    long task_blocks;      // spawn task one at a time
    long status_num;
    long task_spawned;
    unsigned long long *o_data;
    long out_task_num;
    char *file_mmap;
    long long file_size;

    /*set input Data variables*/
    long last_task_size;
    unsigned char *search_word;
    int *BMskip_table;
    int search_word_len;
    int extra_len;

    HTaskPtr t_print;
    HTaskPtr t_exec;

} WordCount, *WordCountPtr;