从modules/mod_cpu.c入手

./devel/tsar.h

module 结构体：

struct module {    char    name[LEN_32];    char    opt_line[LEN_32];    char    record[LEN_1M];    char    usage[LEN_256];    char    parameter[LEN_256];    char    print_item[LEN_256];    struct  mod_info *info;    void   *lib;    int     enable;    int     spec;    int     p_item;    /* private data used by framework*/    int     n_item;    int     n_col;    long    n_record;        int     pre_flag:4;    int     st_flag:4;    U_64   *pre_array;    U_64   *cur_array;    double *st_array;    double *max_array;    double *mean_array;    double *min_array;    /* callback function of module */    void (*data_collect) (struct module *, char *);    void (*set_st_record) (struct module *, double *, U_64 *, U_64 *, int);    /* mod manage */    void (*mod_register) (struct module *);};