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villas-node.cpp
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191 lines (157 loc) · 4.8 KB
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/* Main routine.
*
* Author: Steffen Vogel <[email protected]>
* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
* SPDX-License-Identifier: Apache-2.0
*/
#include <cstdlib>
#include <iomanip>
#include <iostream>
#include <unistd.h>
#include <villas/api.hpp>
#include <villas/api/request.hpp>
#include <villas/capabilities.hpp>
#include <villas/colors.hpp>
#include <villas/exceptions.hpp>
#include <villas/format.hpp>
#include <villas/hook.hpp>
#include <villas/kernel/kernel.hpp>
#include <villas/kernel/rt.hpp>
#include <villas/log.hpp>
#include <villas/memory.hpp>
#include <villas/node.hpp>
#include <villas/node/config.hpp>
#include <villas/path.hpp>
#include <villas/plugin.hpp>
#include <villas/super_node.hpp>
#include <villas/tool.hpp>
#include <villas/utils.hpp>
#include <villas/version.hpp>
#include <villas/web.hpp>
using namespace villas;
using namespace villas::node;
using namespace villas::plugin;
namespace villas {
namespace node {
namespace tools {
class Node : public Tool {
public:
Node(int argc, char *argv[]) : Tool(argc, argv, "node") {}
protected:
SuperNode sn;
std::string uri;
bool showCapabilities = false;
void handler(int signal, siginfo_t *sinfo, void *ctx) override {
switch (signal) {
case SIGALRM:
logger->info("Reached timeout. Terminating...");
break;
default:
logger->info("Received {} signal. Terminating...", strsignal(signal));
}
sn.setState(State::STOPPING);
}
void usage() override {
std::cout
<< "Usage: villas-node [OPTIONS] [CONFIG]" << std::endl
<< " OPTIONS is one or more of the following options:" << std::endl
<< " -h show this usage information" << std::endl
<< " -d LVL set logging level" << std::endl
<< " -C show capabilities in JSON format" << std::endl
<< " -V show the version of the tool" << std::endl
<< std::endl
<< " CONFIG is the path to an optional configuration file" << std::endl
<< " if omitted, VILLASnode will start without a configuration"
<< std::endl
<< " and wait for provisioning over the web interface."
<< std::endl
<< std::endl;
std::cout << "Supported node-types:" << std::endl;
for (auto p : registry->lookup<NodeFactory>()) {
if (!p->isHidden())
std::cout << " - " << std::left << std::setw(18) << p->getName()
<< p->getDescription() << std::endl;
}
std::cout << std::endl;
std::cout << "Supported IO formats:" << std::endl;
for (auto p : registry->lookup<FormatFactory>()) {
if (!p->isHidden())
std::cout << " - " << std::left << std::setw(18) << p->getName()
<< p->getDescription() << std::endl;
}
std::cout << std::endl;
#ifdef WITH_HOOKS
std::cout << "Supported hooks:" << std::endl;
for (auto p : registry->lookup<HookFactory>()) {
if (!p->isHidden())
std::cout << " - " << std::left << std::setw(18) << p->getName()
<< p->getDescription() << std::endl;
}
std::cout << std::endl;
#endif // WITH_HOOKS
#ifdef WITH_API
std::cout << "Supported API commands:" << std::endl;
for (auto p : registry->lookup<api::RequestFactory>()) {
if (!p->isHidden())
std::cout << " - " << std::left << std::setw(18) << p->getName()
<< p->getDescription() << std::endl;
}
std::cout << std::endl;
#endif // WITH_API
printCopyright();
}
void parse() override {
// Parse optional command line arguments
int c;
while ((c = getopt(argc, argv, "hCVd:")) != -1) {
switch (c) {
case 'V':
printVersion();
exit(EXIT_SUCCESS);
case 'd':
Log::getInstance().setLevel(optarg);
break;
case 'C':
showCapabilities = true;
break;
case 'h':
case '?':
usage();
exit(c == '?' ? EXIT_FAILURE : EXIT_SUCCESS);
}
continue;
}
if (argc == optind + 1)
uri = argv[optind];
else if (argc != optind) {
usage();
exit(EXIT_FAILURE);
}
}
int main() override { return showCapabilities ? capabilities() : daemon(); }
int capabilities() {
auto *json_caps = getCapabilities();
json_dumpf(json_caps, stdout, JSON_INDENT(4));
return 0;
}
int daemon() {
if (!uri.empty())
sn.parse(uri);
else
logger->warn("No configuration file specified. Starting unconfigured. "
"Use the API to configure this instance.");
sn.check();
sn.prepare();
sn.start();
sn.run();
sn.stop();
return 0;
}
};
} // namespace tools
} // namespace node
} // namespace villas
int main(int argc, char *argv[]) {
villas::node::tools::Node t(argc, argv);
return t.run();
}