mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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207 lines
4 KiB
C++
207 lines
4 KiB
C++
/** The super node object holding the state of the application.
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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 2014-2020, 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/config.h>
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#ifdef WITH_GRAPHVIZ
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extern "C" {
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#include <graphviz/gvc.h>
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}
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#endif
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#include <fstream>
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#include <villas/list.h>
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#include <villas/api.hpp>
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#include <villas/web.hpp>
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#include <villas/log.hpp>
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#include <villas/config.hpp>
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#include <villas/node.h>
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#include <villas/task.hpp>
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#include <villas/common.hpp>
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#include <villas/kernel/if.hpp>
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/* Forward declarations */
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struct vnode;
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namespace villas {
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namespace node {
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/** Global configuration */
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class SuperNode {
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protected:
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enum State state;
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int idleStop;
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Logger logger;
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struct vlist nodes;
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struct vlist paths;
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std::list<kernel::Interface *> interfaces;
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#ifdef WITH_API
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Api api;
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#endif
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#ifdef WITH_WEB
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Web web;
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#endif
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int priority; /**< Process priority (lower is better) */
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int affinity; /**< Process affinity of the server and all created threads */
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int hugepages; /**< Number of hugepages to reserve. */
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double statsRate; /**< Rate at which we display the periodic stats. */
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struct Task task; /**< Task for periodic stats output */
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uuid_t uuid; /**< A globally unique identifier of the instance */
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struct timespec started; /**< The time at which the instance has been started. */
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std::string uri; /**< URI of configuration */
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Config config; /** The configuration file. */
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public:
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/** Inititalize configuration object before parsing the configuration. */
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SuperNode();
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int init();
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/** Wrapper for parse() which loads the config first. */
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void parse(const std::string &name);
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/** Parse super-node configuration.
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*
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* @param cfg A libjansson object which contains the configuration.
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*/
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void parse(json_t *cfg);
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/** Check validity of super node configuration. */
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void check();
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/** Initialize after parsing the configuration file. */
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void prepare();
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void start();
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void stop();
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void run();
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void preparePaths();
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void prepareNodes();
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void startPaths();
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void startNodes();
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void startNodeTypes();
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void startInterfaces();
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void stopPaths();
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void stopNodes();
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void stopNodeTypes();
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void stopInterfaces();
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#ifdef WITH_GRAPHVIZ
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graph_t * getGraph();
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#endif
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/** Run periodic hooks of this super node. */
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int periodic();
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void setState(enum State st)
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{
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state = st;
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}
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struct vnode * getNode(const std::string &name)
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{
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return vlist_lookup_name<struct vnode>(&nodes, name);
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}
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struct vlist * getNodes()
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{
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return &nodes;
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}
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struct vlist * getPaths()
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{
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return &paths;
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}
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std::list<kernel::Interface *> & getInterfaces()
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{
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return interfaces;
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}
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enum State getState() const
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{
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return state;
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}
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void getUUID(uuid_t out) const
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{
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uuid_copy(out, uuid);
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}
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struct timespec getStartTime() const
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{
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return started;
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}
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#ifdef WITH_API
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Api * getApi()
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{
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return &api;
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}
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#endif
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#ifdef WITH_WEB
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Web * getWeb()
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{
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return &web;
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}
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#endif
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json_t * getConfig()
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{
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return config.root;
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}
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std::string getConfigUri() const
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{
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return uri;
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}
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int getAffinity() const
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{
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return affinity;
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}
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/** Destroy configuration object. */
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~SuperNode();
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};
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} /* namespace node */
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} /* namespace villas */
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