mirror of
https://github.com/wpilibsuite/allwpilib
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37 lines
1.0 KiB
C++
37 lines
1.0 KiB
C++
//===- llvm/Support/Errno.h - Portable+convenient errno handling -*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares some portable and convenient functions to deal with errno.
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//
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//===----------------------------------------------------------------------===//
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#ifndef WPIUTIL_WPI_ERRNO_H
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#define WPIUTIL_WPI_ERRNO_H
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#include <cerrno>
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#include <string>
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namespace wpi {
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namespace sys {
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template <typename FailT, typename Fun, typename... Args>
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inline decltype(auto) RetryAfterSignal(const FailT &Fail, const Fun &F,
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const Args &... As) {
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decltype(F(As...)) Res;
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do {
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errno = 0;
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Res = F(As...);
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} while (Res == Fail && errno == EINTR);
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return Res;
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}
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} // namespace sys
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} // namespace wpi
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#endif // WPIUTIL_WPI_ERRNO_H
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