From 0b57cec536236d46e3dba9bd041533462f33dbb7 Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Fri, 20 Dec 2019 19:53:05 +0000 Subject: Move all sources from the llvm project into contrib/llvm-project. This uses the new layout of the upstream repository, which was recently migrated to GitHub, and converted into a "monorepo". That is, most of the earlier separate sub-projects with their own branches and tags were consolidated into one top-level directory, and are now branched and tagged together. Updating the vendor area to match this layout is next. --- contrib/llvm-project/llvm/lib/Support/Unix/Unix.h | 105 ++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 contrib/llvm-project/llvm/lib/Support/Unix/Unix.h (limited to 'contrib/llvm-project/llvm/lib/Support/Unix/Unix.h') diff --git a/contrib/llvm-project/llvm/lib/Support/Unix/Unix.h b/contrib/llvm-project/llvm/lib/Support/Unix/Unix.h new file mode 100644 index 000000000000..86309b0567f5 --- /dev/null +++ b/contrib/llvm-project/llvm/lib/Support/Unix/Unix.h @@ -0,0 +1,105 @@ +//===- llvm/Support/Unix/Unix.h - Common Unix Include File -------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file defines things specific to Unix implementations. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIB_SUPPORT_UNIX_UNIX_H +#define LLVM_LIB_SUPPORT_UNIX_UNIX_H + +//===----------------------------------------------------------------------===// +//=== WARNING: Implementation here must contain only generic UNIX code that +//=== is guaranteed to work on all UNIX variants. +//===----------------------------------------------------------------------===// + +#include "llvm/Config/config.h" +#include "llvm/Support/Chrono.h" +#include "llvm/Support/Errno.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_UNISTD_H +#include +#endif + +#ifdef HAVE_SYS_PARAM_H +#include +#endif + +#ifdef HAVE_SYS_TIME_H +# include +#endif +#include + +#ifdef HAVE_DLFCN_H +# include +#endif + +#ifdef HAVE_FCNTL_H +# include +#endif + +/// This function builds an error message into \p ErrMsg using the \p prefix +/// string and the Unix error number given by \p errnum. If errnum is -1, the +/// default then the value of errno is used. +/// Make an error message +/// +/// If the error number can be converted to a string, it will be +/// separated from prefix by ": ". +static inline bool MakeErrMsg( + std::string* ErrMsg, const std::string& prefix, int errnum = -1) { + if (!ErrMsg) + return true; + if (errnum == -1) + errnum = errno; + *ErrMsg = prefix + ": " + llvm::sys::StrError(errnum); + return true; +} + +namespace llvm { +namespace sys { + +/// Convert a struct timeval to a duration. Note that timeval can be used both +/// as a time point and a duration. Be sure to check what the input represents. +inline std::chrono::microseconds toDuration(const struct timeval &TV) { + return std::chrono::seconds(TV.tv_sec) + + std::chrono::microseconds(TV.tv_usec); +} + +/// Convert a time point to struct timespec. +inline struct timespec toTimeSpec(TimePoint<> TP) { + using namespace std::chrono; + + struct timespec RetVal; + RetVal.tv_sec = toTimeT(TP); + RetVal.tv_nsec = (TP.time_since_epoch() % seconds(1)).count(); + return RetVal; +} + +/// Convert a time point to struct timeval. +inline struct timeval toTimeVal(TimePoint TP) { + using namespace std::chrono; + + struct timeval RetVal; + RetVal.tv_sec = toTimeT(TP); + RetVal.tv_usec = (TP.time_since_epoch() % seconds(1)).count(); + return RetVal; +} + +} // namespace sys +} // namespace llvm + +#endif -- cgit v1.2.3