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https://git.rwth-aachen.de/acs/public/villas/node/
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145 lines
3.4 KiB
C++
145 lines
3.4 KiB
C++
/* Node type: Node-type for testing Round-trip Time.
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*
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* Author: Steffen Vogel <post@steffenvogel.de>
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* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <villas/format.hpp>
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#include <villas/list.hpp>
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#include <villas/node.hpp>
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#include <villas/task.hpp>
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namespace villas {
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namespace node {
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// Forward declarations
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struct Sample;
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class TestRTT : public Node {
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protected:
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class Case {
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friend TestRTT;
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protected:
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TestRTT *node;
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int id;
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double rate;
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double
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warmup; // Number of seconds to wait between before recording samples.
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double cooldown; // Number of seconds to wait between tests.
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unsigned values;
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unsigned count; // The number of samples we send per test.
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unsigned sent;
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unsigned received;
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unsigned missed;
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unsigned count_warmup; // The number of samples we send during warmup.
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unsigned sent_warmup;
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unsigned received_warmup;
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unsigned missed_warmup;
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struct timespec started;
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struct timespec stopped;
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std::string filename;
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std::string filename_formatted;
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json_t *getMetadata();
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public:
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Case(TestRTT *n, int id, int rate, float warmup, float cooldown, int values,
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int count, int count_warmup, const std::string &filename)
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: node(n), id(id), rate(rate), warmup(warmup), cooldown(cooldown),
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values(values), count(count), sent(0), received(0), missed(0),
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count_warmup(count_warmup), sent_warmup(0), received_warmup(0),
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missed_warmup(0), filename(filename) {};
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int start();
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int stop();
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double getEstimatedDuration() const;
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};
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Task task; // The periodic task for test_rtt_read()
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Format::Ptr formatter; // The format of the output file
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FILE *stream;
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std::list<Case> cases; // List of test cases
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std::list<Case>::iterator current; // Currently running test case
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std::string output; // The directory where we place the results.
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std::string prefix; // An optional prefix in the filename.
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bool shutdown;
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virtual int _read(struct Sample *smps[], unsigned cnt);
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virtual int _write(struct Sample *smps[], unsigned cnt);
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public:
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enum Mode {
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UNKNOWN,
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MIN,
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MAX,
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STOP_COUNT,
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STOP_DURATION,
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AT_LEAST_COUNT,
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AT_LEAST_DURATION
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};
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TestRTT(const uuid_t &id = {}, const std::string &name = "")
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: Node(id, name), task(), formatter(nullptr), stream(nullptr),
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shutdown(false) {}
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virtual ~TestRTT() {};
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virtual int prepare();
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virtual int parse(json_t *json);
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virtual int start();
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virtual int stop();
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virtual std::vector<int> getPollFDs();
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virtual const std::string &getDetails();
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double getEstimatedDuration() const;
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};
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class TestRTTNodeFactory : public NodeFactory {
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public:
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using NodeFactory::NodeFactory;
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virtual Node *make(const uuid_t &id = {}, const std::string &nme = "") {
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auto *n = new TestRTT(id, nme);
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init(n);
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return n;
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}
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virtual int getFlags() const {
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return (int)NodeFactory::Flags::SUPPORTS_READ |
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(int)NodeFactory::Flags::SUPPORTS_WRITE |
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(int)NodeFactory::Flags::SUPPORTS_POLL;
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}
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virtual std::string getName() const { return "test_rtt"; }
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virtual std::string getDescription() const {
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return "Test round-trip time with loopback";
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}
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virtual int start(SuperNode *sn);
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};
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} // namespace node
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} // namespace villas
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