4f381f6d07
* bump abseil to 20250814 * bump protobuf to v32.0 * cmake: add ccache auto support * backport flatzinc, math_opt and sat update
75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
// Copyright 2010-2025 Google LLC
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "ortools/util/sigint.h"
|
|
|
|
#include <csignal>
|
|
#include <cstdlib>
|
|
#include <functional>
|
|
|
|
#include "ortools/base/logging.h"
|
|
#include "ortools/port/os.h"
|
|
|
|
#if ORTOOLS_TARGET_OS_SUPPORTS_THREADS
|
|
|
|
namespace operations_research {
|
|
|
|
void SigintHandler::Register(const std::function<void()>& f) {
|
|
handler_ = [this, f]() -> void {
|
|
const int num_calls = ++num_calls_;
|
|
if (num_calls < 3) {
|
|
LOG(INFO)
|
|
<< "^C pressed " << num_calls << " times. "
|
|
<< "Interrupting the solver. Press 3 times to force termination.";
|
|
if (num_calls == 1) f();
|
|
} else if (num_calls == 3) {
|
|
LOG(INFO) << "^C pressed 3 times. Forcing termination.";
|
|
exit(EXIT_FAILURE);
|
|
} else {
|
|
// Another thread is already running exit(), do nothing.
|
|
}
|
|
};
|
|
signal(SIGINT, &SigHandler);
|
|
}
|
|
|
|
// This method will be called by the system after the SIGINT signal.
|
|
// The parameter is the signal received.
|
|
void SigintHandler::SigHandler(int) { handler_(); }
|
|
|
|
// Unregister the signal handlers.
|
|
SigintHandler::~SigintHandler() {
|
|
if (handler_ != nullptr) signal(SIGINT, SIG_DFL);
|
|
}
|
|
|
|
thread_local std::function<void()> SigintHandler::handler_;
|
|
|
|
void SigtermHandler::Register(const std::function<void()>& f) {
|
|
handler_ = [f]() -> void { f(); };
|
|
signal(SIGTERM, &SigHandler);
|
|
}
|
|
|
|
// This method will be called by the system after the SIGTERM signal.
|
|
// The parameter is the signal received.
|
|
void SigtermHandler::SigHandler(int) { handler_(); }
|
|
|
|
// Unregister the signal handlers.
|
|
SigtermHandler::~SigtermHandler() {
|
|
if (handler_ != nullptr) signal(SIGTERM, SIG_DFL);
|
|
}
|
|
|
|
thread_local std::function<void()> SigtermHandler::handler_;
|
|
|
|
} // namespace operations_research
|
|
|
|
#endif // ORTOOLS_TARGET_OS_SUPPORTS_THREADS
|