/** The super node object holding the state of the application. * * @file * @author Steffen Vogel * @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC * @license GNU General Public License (version 3) * * VILLASnode * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . *********************************************************************************/ #pragma once #include #ifdef WITH_GRAPHVIZ extern "C" { #include } #endif #include #include #include #include #include #include #include #include #include #include #include /* Forward declarations */ struct vnode; namespace villas { namespace node { /** Global configuration */ class SuperNode { protected: enum State state; int idleStop; Logger logger; NodeList nodes; PathList paths; std::list interfaces; #ifdef WITH_API Api api; #endif #ifdef WITH_WEB Web web; #endif int priority; /**< Process priority (lower is better) */ int affinity; /**< Process affinity of the server and all created threads */ int hugepages; /**< Number of hugepages to reserve. */ double statsRate; /**< Rate at which we display the periodic stats. */ struct Task task; /**< Task for periodic stats output */ uuid_t uuid; /**< A globally unique identifier of the instance */ struct timespec started; /**< The time at which the instance has been started. */ std::string uri; /**< URI of configuration */ Config config; /** The configuration file. */ public: /** Inititalize configuration object before parsing the configuration. */ SuperNode(); int init(); /** Wrapper for parse() which loads the config first. */ void parse(const std::string &name); /** Parse super-node configuration. * * @param json A libjansson object which contains the configuration. */ void parse(json_t *json); /** Check validity of super node configuration. */ void check(); /** Initialize after parsing the configuration file. */ void prepare(); void start(); void stop(); void run(); void preparePaths(); void prepareNodes(); void prepareNodeTypes(); void startPaths(); void startNodes(); void startInterfaces(); void stopPaths(); void stopNodes(); void stopNodeTypes(); void stopInterfaces(); #ifdef WITH_GRAPHVIZ graph_t * getGraph(); #endif /** Run periodic hooks of this super node. */ int periodic(); void setState(enum State st) { state = st; } struct vnode * getNode(const std::string &name) { return nodes.lookup(name); } NodeList & getNodes() { return nodes; } PathList & getPaths() { return paths; } std::list & getInterfaces() { return interfaces; } enum State getState() const { return state; } void getUUID(uuid_t out) const { uuid_copy(out, uuid); } struct timespec getStartTime() const { return started; } #ifdef WITH_API Api * getApi() { return &api; } #endif #ifdef WITH_WEB Web * getWeb() { return &web; } #endif json_t * getConfig() { return config.root; } std::string getConfigUri() const { return uri; } int getAffinity() const { return affinity; } Logger getLogger() { return logger; } /** Destroy configuration object. */ ~SuperNode(); }; } /* namespace node */ } /* namespace villas */