61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
// Copyright 2010-2025 Google LLC
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef ORTOOLS_UTIL_SIGINT_H_
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#define ORTOOLS_UTIL_SIGINT_H_
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#include <atomic>
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#include <functional>
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#include "ortools/port/os.h"
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#if ORTOOLS_TARGET_OS_SUPPORTS_THREADS
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namespace operations_research {
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class SigintHandler {
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public:
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SigintHandler() = default;
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~SigintHandler();
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// Catches ^C and call f() the first time this happen. If ^C is pressed 3
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// times, kill the program.
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void Register(const std::function<void()>& f);
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private:
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std::atomic<int> num_calls_ = 0;
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static void SigHandler(int s);
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thread_local static std::function<void()> handler_;
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};
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class SigtermHandler {
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public:
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SigtermHandler() = default;
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~SigtermHandler();
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// Catches SIGTERM and call f(). It is recommended that f() calls exit() to
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// terminate the program.
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void Register(const std::function<void()>& f);
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private:
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static void SigHandler(int s);
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thread_local static std::function<void()> handler_;
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};
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} // namespace operations_research
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#endif // ORTOOLS_TARGET_OS_SUPPORTS_THREADS
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#endif // ORTOOLS_UTIL_SIGINT_H_
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