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