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+/*
+ Itay Marom
+ Cisco Systems, Inc.
+*/
+
+/*
+Copyright (c) 2015-2015 Cisco Systems, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+#ifndef __TREX_STATELESS_H__
+#define __TREX_STATELESS_H__
+
+#include <stdint.h>
+#include <string>
+#include <stdexcept>
+
+#include <mutex>
+
+#include <trex_stream.h>
+#include <trex_stateless_port.h>
+#include <trex_stateless_dp_core.h>
+#include <trex_rpc_server_api.h>
+
+/**
+ * generic exception for errors
+ * TODO: move this to a better place
+ */
+class TrexException : public std::runtime_error
+{
+public:
+ TrexException() : std::runtime_error("") {
+
+ }
+ TrexException(const std::string &what) : std::runtime_error(what) {
+ }
+};
+
+class TrexStatelessPort;
+
+/**
+ * unified stats
+ *
+ * @author imarom (06-Oct-15)
+ */
+class TrexStatelessStats {
+public:
+ TrexStatelessStats() {
+ m_stats = {0};
+ }
+
+ struct {
+ double m_cpu_util;
+
+ double m_tx_bps;
+ double m_rx_bps;
+
+ double m_tx_pps;
+ double m_rx_pps;
+
+ uint64_t m_total_tx_pkts;
+ uint64_t m_total_rx_pkts;
+
+ uint64_t m_total_tx_bytes;
+ uint64_t m_total_rx_bytes;
+
+ uint64_t m_tx_rx_errors;
+ } m_stats;
+};
+
+/**
+ * config object for stateless object
+ *
+ * @author imarom (08-Oct-15)
+ */
+class TrexStatelessCfg {
+public:
+ /* default values */
+ TrexStatelessCfg() {
+ m_port_count = 0;
+ m_dp_core_count = 0;
+ m_rpc_req_resp_cfg = NULL;
+ m_rpc_async_cfg = NULL;
+ m_rpc_server_verbose = false;
+ }
+
+ const TrexRpcServerConfig *m_rpc_req_resp_cfg;
+ const TrexRpcServerConfig *m_rpc_async_cfg;
+ bool m_rpc_server_verbose;
+ uint8_t m_port_count;
+ uint8_t m_dp_core_count;
+};
+
+/**
+ * defines the T-Rex stateless operation mode
+ *
+ */
+class TrexStateless {
+public:
+
+ /**
+ * configure the stateless object singelton
+ * reconfiguration is not allowed
+ * an exception will be thrown
+ */
+ static void configure(const TrexStatelessCfg &cfg);
+
+ /**
+ * destroy the instance
+ *
+ */
+ static void destroy();
+
+ /**
+ * singleton public get instance
+ *
+ */
+ static TrexStateless& get_instance() {
+ TrexStateless& instance = get_instance_internal();
+
+ if (!instance.m_is_configured) {
+ throw TrexException("object is not configured");
+ }
+
+ return instance;
+ }
+
+ /**
+ * starts the control plane side
+ *
+ */
+ void launch_control_plane();
+
+ /**
+ * launch on a single DP core
+ *
+ */
+ void launch_on_dp_core(uint8_t core_id);
+
+ TrexStatelessPort * get_port_by_id(uint8_t port_id);
+ uint8_t get_port_count();
+
+ uint8_t get_dp_core_count();
+
+ /**
+ * update all the stats (deep update)
+ * (include all the ports and global stats)
+ *
+ */
+ void update_stats();
+
+ /**
+ * fetch all the stats
+ *
+ */
+ void encode_stats(Json::Value &global);
+
+
+protected:
+ TrexStateless();
+
+ static TrexStateless& get_instance_internal () {
+ static TrexStateless instance;
+ return instance;
+ }
+
+ /* c++ 2011 style singleton */
+ TrexStateless(TrexStateless const&) = delete;
+ void operator=(TrexStateless const&) = delete;
+
+ /* status */
+ bool m_is_configured;
+
+ /* RPC server array */
+ TrexRpcServer *m_rpc_server;
+
+ /* ports */
+ std::vector <TrexStatelessPort *> m_ports;
+ uint8_t m_port_count;
+
+ /* cores */
+ std::vector <TrexStatelessDpCore *> m_dp_cores;
+ uint8_t m_dp_core_count;
+
+ /* stats */
+ TrexStatelessStats m_stats;
+
+ std::mutex m_global_cp_lock;
+};
+
+#endif /* __TREX_STATELESS_H__ */
+