1570af302Sopenharmony_ci/* 2570af302Sopenharmony_ci * Copyright (c) 2023 Huawei Device Co., Ltd. 3570af302Sopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License"); 4570af302Sopenharmony_ci * you may not use this file except in compliance with the License. 5570af302Sopenharmony_ci * You may obtain a copy of the License at 6570af302Sopenharmony_ci * 7570af302Sopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0 8570af302Sopenharmony_ci * 9570af302Sopenharmony_ci * Unless required by applicable law or agreed to in writing, software 10570af302Sopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS, 11570af302Sopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12570af302Sopenharmony_ci * See the License for the specific language governing permissions and 13570af302Sopenharmony_ci * limitations under the License. 14570af302Sopenharmony_ci */ 15570af302Sopenharmony_ci 16570af302Sopenharmony_ci#include <signal.h> 17570af302Sopenharmony_ci#include <errno.h> 18570af302Sopenharmony_ci 19570af302Sopenharmony_ciextern int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigaction *restrict old); 20570af302Sopenharmony_ci 21570af302Sopenharmony_ciint siginterrupt(int sig, int flag) 22570af302Sopenharmony_ci{ 23570af302Sopenharmony_ci if (sig-32U < 3 || sig-1U >= _NSIG-1) { 24570af302Sopenharmony_ci errno = EINVAL; 25570af302Sopenharmony_ci return -1; 26570af302Sopenharmony_ci } 27570af302Sopenharmony_ci struct sigaction sa; 28570af302Sopenharmony_ci 29570af302Sopenharmony_ci __libc_sigaction(sig, 0, &sa); 30570af302Sopenharmony_ci if (flag) sa.sa_flags &= ~SA_RESTART; 31570af302Sopenharmony_ci else sa.sa_flags |= SA_RESTART; 32570af302Sopenharmony_ci 33570af302Sopenharmony_ci return __libc_sigaction(sig, &sa, 0); 34570af302Sopenharmony_ci} 35