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52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2020 Johannes Pohl
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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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(at your option) any later version.
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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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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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#ifndef SIGNAL_HANDLER_HPP
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#define SIGNAL_HANDLER_HPP
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#include <functional>
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#include <future>
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#include <set>
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#include <signal.h>
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using signal_callback = std::function<void(int signal, const std::string& name)>;
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static std::future<int> install_signal_handler(std::set<int> signals, const signal_callback& on_signal = nullptr)
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{
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static std::promise<int> promise;
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std::future<int> future = promise.get_future();
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static signal_callback callback = on_signal;
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for (auto signal : signals)
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{
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::signal(signal, [](int sig) {
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if (callback)
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callback(sig, strsignal(sig));
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try
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{
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promise.set_value(sig);
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}
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catch (const std::future_error&)
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{
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}
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});
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}
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return future;
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}
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#endif
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