C++ TrexStatelessPort::get_stream_table方法代码示例

/***************************
 * remove stream
 * 
 **************************/
trex_rpc_cmd_rc_e
TrexRpcCmdRemoveStream::_run(const Json::Value &params, Json::Value &result) {
    uint8_t  port_id = parse_byte(params, "port_id", result);
    uint32_t stream_id = parse_int(params, "stream_id", result);


    if (port_id >= get_stateless_obj()->get_port_count()) {
        std::stringstream ss;
        ss << "invalid port id - should be between 0 and " << (int)get_stateless_obj()->get_port_count() - 1;
        generate_execute_err(result, ss.str());
    }

    TrexStatelessPort *port = get_stateless_obj()->get_port_by_id(port_id);
    TrexStream *stream = port->get_stream_table()->get_stream_by_id(stream_id);

    if (!stream) {
        std::stringstream ss;
        ss << "stream " << stream_id << " does not exists";
        generate_execute_err(result, ss.str());
    }

    port->get_stream_table()->remove_stream(stream);
    delete stream;

    result["result"] = "ACK";

    return (TREX_RPC_CMD_OK);
}

void
TrexRpcCmdAddStream::validate_stream(const TrexStream *stream, Json::Value &result) {

    /* check packet size */
    if ( (stream->m_pkt.len < TrexStream::MIN_PKT_SIZE_BYTES) || (stream->m_pkt.len > TrexStream::MAX_PKT_SIZE_BYTES) ) {
        std::stringstream ss;
        ss << "bad packet size provided: should be between " << TrexStream::MIN_PKT_SIZE_BYTES << " and " << TrexStream::MAX_PKT_SIZE_BYTES;
        delete stream;
        generate_execute_err(result, ss.str()); 
    }

    /* port id should be between 0 and count - 1 */
    if (stream->m_port_id >= get_stateless_obj()->get_port_count()) {
        std::stringstream ss;
        ss << "invalid port id - should be between 0 and " << (int)get_stateless_obj()->get_port_count() - 1;
        delete stream;
        generate_execute_err(result, ss.str());
    }

     /* add the stream to the port's stream table */
    TrexStatelessPort * port = get_stateless_obj()->get_port_by_id(stream->m_port_id);

    /* does such a stream exists ? */
    if (port->get_stream_table()->get_stream_by_id(stream->m_stream_id)) {
        std::stringstream ss;
        ss << "stream " << stream->m_stream_id << " already exists";
        delete stream;
        generate_execute_err(result, ss.str());
    }

}

/***************************
 * add new stream
 * 
 **************************/
trex_rpc_cmd_rc_e
TrexRpcCmdAddStream::_run(const Json::Value &params, Json::Value &result) {

    const Json::Value &section = parse_object(params, "stream", result);

    /* get the type of the stream */
    const Json::Value &mode = parse_object(section, "mode", result);
    string type = parse_string(mode, "type", result);

    /* allocate a new stream based on the type */
    TrexStream *stream = allocate_new_stream(section, result);

    /* some fields */
    stream->m_enabled         = parse_bool(section, "enabled", result);
    stream->m_self_start      = parse_bool(section, "self_start", result);

    /* inter stream gap */
    stream->m_isg_usec  = parse_double(section, "Is", result);

    stream->m_next_stream_id = parse_int(section, "next_stream_id", result);

    const Json::Value &pkt = parse_array(section, "packet", result);

    /* fetch the packet from the message */

    stream->m_pkt_len = pkt.size();
    stream->m_pkt = new uint8_t[pkt.size()];
    if (!stream->m_pkt) {
        generate_internal_err(result, "unable to allocate memory");
    }

    /* parse the packet */
    for (int i = 0; i < pkt.size(); i++) {
        stream->m_pkt[i] = parse_byte(pkt, i, result);
    }

    /* parse RX info */
    const Json::Value &rx = parse_object(section, "rx_stats", result);

    stream->m_rx_check.m_enable = parse_bool(rx, "enabled", result);

    /* if it is enabled - we need more fields */
    if (stream->m_rx_check.m_enable) {
        stream->m_rx_check.m_stream_id   = parse_int(rx, "stream_id", result);
        stream->m_rx_check.m_seq_enabled = parse_bool(rx, "seq_enabled", result);
        stream->m_rx_check.m_latency     = parse_bool(rx, "latency", result);
    }

    /* make sure this is a valid stream to add */
    validate_stream(stream, result);

    TrexStatelessPort *port = get_trex_stateless()->get_port_by_id(stream->m_port_id);
    port->get_stream_table()->add_stream(stream);

    result["result"] = "ACK";

    return (TREX_RPC_CMD_OK);
}

/***************************
 * remove all streams
 * for a port
 * 
 **************************/
trex_rpc_cmd_rc_e
TrexRpcCmdRemoveAllStreams::_run(const Json::Value &params, Json::Value &result) {
    uint8_t  port_id = parse_byte(params, "port_id", result);

    if (port_id >= get_trex_stateless()->get_port_count()) {
        std::stringstream ss;
        ss << "invalid port id - should be between 0 and " << (int)get_trex_stateless()->get_port_count() - 1;
        generate_execute_err(result, ss.str());
    }

       TrexStatelessPort *port = get_trex_stateless()->get_port_by_id(port_id);
       port->get_stream_table()->remove_and_delete_all_streams();

       result["result"] = "ACK";
}