mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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94 lines
2.1 KiB
C++
94 lines
2.1 KiB
C++
/** Node type: internal loopback
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*
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* @file
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2021, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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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
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int _write(struct Sample * smps[], unsigned cnt);
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virtual
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int _read(struct Sample * smps[], unsigned cnt);
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public:
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InternalLoopbackNode(Node *src, unsigned id = 0, unsigned ql = DEFAULT_QUEUE_LENGTH);
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virtual
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~InternalLoopbackNode();
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virtual
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std::vector<int> getPollFDs();
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virtual
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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
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Node * make()
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{
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return nullptr;
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}
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virtual
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int getFlags() const
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{
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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
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std::string getName() const
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{
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return "loopback.internal";
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}
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virtual
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std::string getDescription() const
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{
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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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