mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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113 lines
2.4 KiB
C++
113 lines
2.4 KiB
C++
/** REST-API-releated functions.
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*
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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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#include <villas/api.hpp>
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#include <villas/api/session.hpp>
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#include <villas/utils.hpp>
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#include <villas/node/config.h>
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#include <villas/memory.h>
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#include <villas/compat.hpp>
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using namespace villas;
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using namespace villas::node;
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using namespace villas::node::api;
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Api::Api(SuperNode *sn) :
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state(State::INITIALIZED),
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super_node(sn),
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server(this)
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{
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logger = logging.get("api");
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}
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Api::~Api()
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{
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assert(state != State::STARTED);
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}
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void Api::start()
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{
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assert(state != State::STARTED);
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logger->info("Starting sub-system");
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server.start();
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running = true;
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thread = std::thread(&Api::worker, this);
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state = State::STARTED;
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}
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void Api::stop()
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{
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assert(state == State::STARTED);
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logger->info("Stopping sub-system");
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for (Session *s : sessions)
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s->shutdown();
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for (int i = 0; i < 2 && sessions.size() > 0; i++) {
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logger->info("Waiting for {} sessions to terminate", sessions.size());
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usleep(1 * 1e6);
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}
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running = false;
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pending.push(nullptr); /* unblock thread */
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thread.join();
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server.stop();
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state = State::STOPPED;
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}
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void Api::run()
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{
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if (pending.empty())
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return;
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/* Process pending actions */
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while (!pending.empty()) {
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Session *s = pending.pop();
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if (s) {
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/* Check that the session is still alive */
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auto it = std::find(sessions.begin(), sessions.end(), s);
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if (it == sessions.end())
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return;
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s->runPendingActions();
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}
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}
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}
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void Api::worker()
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{
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logger->info("Started worker");
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while (running) {
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run();
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server.run();
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}
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logger->info("Stopped worker");
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}
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