How to use thread and queue to push and pop data on gSOAP
char* register_user(char *form){
    fprintf(stderr,"Entering start register_user---");
    int r = 0;
    void *p;
    char *registeruserresponse;
    _Register* rg = malloc(sizeof(_Register));
    rg->userid = malloc(sizeof(uint64_t));
    rg->firstname = malloc(sizeof(char) * 1024);
    rg->lastname = malloc(sizeof(char) * 1024);
    rg->username = malloc(sizeof(char) * 1024);
    rg->password =  malloc(sizeof(char) * 1024);
    rg->email = malloc(sizeof(char) * 1024);
    rg->userphone = malloc(sizeof(char) * 1024);
    rg->time = malloc(sizeof(char) * 1024);
    rg = parseregister(form);
    register_insert(rg);
    p=rg;
    pthread_t th_a;
    if ( pthread_create( &th_a, NULL, register_insert, p) ) {
        printf("error creating thread.");
        abort();
    };
    if ( pthread_join ( th_a, NULL ) ) {
        printf("error joining thread.");
        abort();
    }

    int u = *((int*)p);
    register_insert(rg);
    registeruserresponse = loginack(rg->userid);
    free(rg);
    fprintf(stderr,"leaving start register_user---");
    return registeruserresponse;
}