1 /** 2 * Copyright (c) 2021-2022 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 16 #ifndef LIBPANDABASE_OS_FAILURE_RETRY_H 17 #define LIBPANDABASE_OS_FAILURE_RETRY_H 18 19 #ifdef PANDA_TARGET_UNIX 20 // Mac Os' libc doesn't have this macro 21 #ifndef TEMP_FAILURE_RETRY 22 // NOLINTNEXTLINE(cppcoreguidelines-macro-usage) 23 #define TEMP_FAILURE_RETRY(exp) \ 24 (__extension__({ \ 25 decltype(exp) _result; \ 26 do { \ 27 _result = (exp); \ 28 } while (_result == -1 && errno == EINTR); \ 29 _result; \ 30 })) 31 #endif 32 33 // NOLINTNEXTLINE(cppcoreguidelines-macro-usage) 34 #define PANDA_FAILURE_RETRY(exp) (__extension__ TEMP_FAILURE_RETRY(exp)) 35 #elif PANDA_TARGET_WINDOWS 36 // Windows Os does not support TEMP_FAILURE_RETRY macro 37 #define PANDA_FAILURE_RETRY(exp) (exp) 38 #else 39 #error "Unsupported platform" 40 #endif // PANDA_TARGET_UNIX 41 42 #endif // LIBPANDABASE_OS_FAILURE_RETRY_H 43