函数指针的经典使用

typedef enum
{
    RK_UPGRADE_START,
    RK_UPGRADE_FINISHED,
    RK_UPGRADE_ERR,
}RK_Upgrade_Status_t;    
    
typedef void(*RK_upgrade_callback)(void *user_data, RK_Upgrade_Status_t status);  //函数指针

void RK_ota_start(RK_upgrade_callback cb)
{
    cb(NULL, RK_UPGRADE_START);
}

void handle_upgrade_callback_reboot(void *user_data, RK_Upgrade_Status_t status)
{
    if(status == RK_UPGRADE_FINISHED){
        update_ok = true;
        reboot(RB_AUTOBOOT);
        printf("\nupdate success\n");
    }
}    
    
int main(int argc, char **argv)
{
    RK_ota_start(handle_upgrade_callback_reboot);
    
    return 0;
}