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41 lines
1.3 KiB
41 lines
1.3 KiB
/* |
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* Copyright (C) 2014 The Android Open Source Project |
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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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#ifndef ART_SIGCHAINLIB_SIGCHAIN_H_ |
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#define ART_SIGCHAINLIB_SIGCHAIN_H_ |
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#include <signal.h> |
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#include <stdint.h> |
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namespace art { |
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// Handlers that exit without returning to their caller (e.g. via siglongjmp) must pass this flag. |
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static constexpr uint64_t SIGCHAIN_ALLOW_NORETURN = 0x1UL; |
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struct SigchainAction { |
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bool (*sc_sigaction)(int, siginfo_t*, void*); |
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sigset_t sc_mask; |
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uint64_t sc_flags; |
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}; |
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extern "C" void AddSpecialSignalHandlerFn(int signal, SigchainAction* sa); |
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extern "C" void RemoveSpecialSignalHandlerFn(int signal, bool (*fn)(int, siginfo_t*, void*)); |
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extern "C" void EnsureFrontOfChain(int signal); |
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} // namespace art |
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#endif // ART_SIGCHAINLIB_SIGCHAIN_H_
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