forked from huawei/mindspore2022
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
/**
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* Copyright 2019 Huawei Technologies Co., Ltd
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*
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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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*/
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#include "dataset/util/sig_handler.h"
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#include <signal.h>
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#include <sys/types.h>
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#if !defined(_WIN32) && !defined(_WIN64)
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#include <ucontext.h>
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#endif
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#include <unistd.h>
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#include "dataset/util/task_manager.h"
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namespace mindspore {
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namespace dataset {
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// Register the custom signal handlers
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#if !defined(_WIN32) && !defined(_WIN64)
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void RegisterHandlers() {
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struct sigaction new_int_action;
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// For the interrupt handler, we do not use SA_RESETHAND so this handler remains in play
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// permanently, do not use the OS default handler for it.
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new_int_action.sa_sigaction = &IntHandler;
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(void)sigemptyset(&new_int_action.sa_mask);
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new_int_action.sa_flags = SA_RESTART | SA_SIGINFO;
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(void)sigaction(SIGINT, &new_int_action, nullptr);
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}
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extern void IntHandler(int sig_num, // The signal that was raised
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siginfo_t *sig_info, // The siginfo structure.
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void *context) { // context info
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// Wake up the watchdog which is designed as async-signal-safe.
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TaskManager::WakeUpWatchDog();
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}
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#endif
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} // namespace dataset
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} // namespace mindspore
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