1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #include "le_utils.h" 16 17 #include <fcntl.h> 18 SetNoBlock(int fd)19void SetNoBlock(int fd) 20 { 21 int option = fcntl(fd, F_GETFD); 22 if (option < 0) { 23 return; 24 } 25 option = option | O_NONBLOCK | FD_CLOEXEC; 26 (void)fcntl(fd, F_SETFD, option); 27 return; 28 }