1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_SIGCHAINLIB_SIGCHAIN_H_ 18 #define ART_SIGCHAINLIB_SIGCHAIN_H_ 19 20 #include <signal.h> 21 22 namespace art { 23 24 extern "C" void InitializeSignalChain(); 25 26 extern "C" void ClaimSignalChain(int signal, struct sigaction* oldaction); 27 28 extern "C" void UnclaimSignalChain(int signal); 29 30 typedef bool (*SpecialSignalHandlerFn)(int, siginfo_t*, void*); 31 extern "C" void SetSpecialSignalHandlerFn(int signal, SpecialSignalHandlerFn fn); 32 33 extern "C" void InvokeUserSignalHandler(int sig, siginfo_t* info, void* context); 34 35 extern "C" void EnsureFrontOfChain(int signal, struct sigaction* expected_action); 36 37 } // namespace art 38 39 #endif // ART_SIGCHAINLIB_SIGCHAIN_H_ 40