tcp server code：
_eTcpCtx = eXosip_malloc();
    if (!_eTcpCtx) {
        ErrorL << "eXosip_malloc tcp failed";
        return -1;
    }

    int32_t result = -1;
    result = eXosip_init(_eTcpCtx);
    if (result != OSIP_SUCCESS) {
        ErrorL << "eXosip_init failed";
        osip_free(_eTcpCtx);
        _eTcpCtx = nullptr;
        return -1;
    }

    eXosip_set_user_agent(_eTcpCtx, _gbsAgentName.c_str());
    InfoL << "eXosip_init tcp success";
    result = eXosip_listen_addr(_eTcpCtx,
                                IPPROTO_TCP,
                                nullptr,
                                _gbsConfig.port,
                                AF_INET,
                                0);
    if (result != OSIP_SUCCESS) {
        ErrorL << "eXosip_listen_addr failed";
        eXosip_reset_transports(_eTcpCtx);
        eXosip_quit(_eTcpCtx);
        osip_free(_eTcpCtx);
        _eTcpCtx = nullptr;
        return -1;
    }


while (!_isNeedStop) {
        eXosip_event_t *event = nullptr;
        event = eXosip_event_wait(peCtx, 0, 0);
        if (!event) {
            osip_usleep(100000);
            continue;
        }

        dispatchEvent(peCtx, event);
        eXosip_event_free(event);
    }


tcp port listening：
gbs       9086 xxx   31u  IPv4 0xb4942c651d611321      0t0  UDP *:30000
gbs       9086 xxx   37u  IPv4 0xb4942c605c9128f9      0t0  TCP *:30000 (LISTEN)


I'm not sure if it's my code. Please reply. Thank you