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https://git.rwth-aachen.de/acs/public/villas/node/
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64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
/* Node type: internal loopback.
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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/node.hpp>
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#include <villas/queue_signalled.h>
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namespace villas {
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namespace node {
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class InternalLoopbackNode : public Node {
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protected:
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unsigned queuelen;
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struct CQueueSignalled queue;
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Node *source;
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virtual int _write(struct Sample *smps[], unsigned cnt);
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virtual int _read(struct Sample *smps[], unsigned cnt);
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public:
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InternalLoopbackNode(Node *src, unsigned id = 0,
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unsigned ql = DEFAULT_QUEUE_LENGTH);
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virtual ~InternalLoopbackNode();
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virtual std::vector<int> getPollFDs();
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virtual int stop();
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};
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class InternalLoopbackNodeFactory : 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 &name = "") {
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return nullptr;
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}
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virtual int getFlags() const {
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return (int)NodeFactory::Flags::INTERNAL |
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(int)NodeFactory::Flags::PROVIDES_SIGNALS |
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(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 "loopback.internal"; }
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virtual std::string getDescription() const {
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return "Internal loopback node";
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}
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};
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} // namespace node
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} // namespace villas
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