diff options
author | Dimitry Andric <dim@FreeBSD.org> | 2020-07-26 19:36:28 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2020-07-26 19:36:28 +0000 |
commit | cfca06d7963fa0909f90483b42a6d7d194d01e08 (patch) | |
tree | 209fb2a2d68f8f277793fc8df46c753d31bc853b /llvm/lib/Support/Windows/WindowsSupport.h | |
parent | 706b4fc47bbc608932d3b491ae19a3b9cde9497b (diff) |
Notes
Diffstat (limited to 'llvm/lib/Support/Windows/WindowsSupport.h')
-rw-r--r-- | llvm/lib/Support/Windows/WindowsSupport.h | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/llvm/lib/Support/Windows/WindowsSupport.h b/llvm/lib/Support/Windows/WindowsSupport.h deleted file mode 100644 index bb7e79b860180..0000000000000 --- a/llvm/lib/Support/Windows/WindowsSupport.h +++ /dev/null @@ -1,243 +0,0 @@ -//===- WindowsSupport.h - Common Windows 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 Windows implementations. In addition to -// providing some helpers for working with win32 APIs, this header wraps -// <windows.h> with some portability macros. Always include WindowsSupport.h -// instead of including <windows.h> directly. -// -//===----------------------------------------------------------------------===// - -//===----------------------------------------------------------------------===// -//=== WARNING: Implementation here must contain only generic Win32 code that -//=== is guaranteed to work on *all* Win32 variants. -//===----------------------------------------------------------------------===// - -#ifndef LLVM_SUPPORT_WINDOWSSUPPORT_H -#define LLVM_SUPPORT_WINDOWSSUPPORT_H - -// mingw-w64 tends to define it as 0x0502 in its headers. -#undef _WIN32_WINNT -#undef _WIN32_IE - -// Require at least Windows 7 API. -#define _WIN32_WINNT 0x0601 -#define _WIN32_IE 0x0800 // MinGW at it again. FIXME: verify if still needed. -#define WIN32_LEAN_AND_MEAN -#ifndef NOMINMAX -#define NOMINMAX -#endif - -#include "llvm/ADT/SmallVector.h" -#include "llvm/ADT/StringExtras.h" -#include "llvm/ADT/StringRef.h" -#include "llvm/ADT/Twine.h" -#include "llvm/Config/config.h" // Get build system configuration settings -#include "llvm/Support/Allocator.h" -#include "llvm/Support/Chrono.h" -#include "llvm/Support/Compiler.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Support/VersionTuple.h" -#include <cassert> -#include <string> -#include <system_error> -#include <windows.h> - -// Must be included after windows.h -#include <wincrypt.h> - -namespace llvm { - -/// Determines if the program is running on Windows 8 or newer. This -/// reimplements one of the helpers in the Windows 8.1 SDK, which are intended -/// to supercede raw calls to GetVersionEx. Old SDKs, Cygwin, and MinGW don't -/// yet have VersionHelpers.h, so we have our own helper. -bool RunningWindows8OrGreater(); - -/// Returns the Windows version as Major.Minor.0.BuildNumber. Uses -/// RtlGetVersion or GetVersionEx under the hood depending on what is available. -/// GetVersionEx is deprecated, but this API exposes the build number which can -/// be useful for working around certain kernel bugs. -llvm::VersionTuple GetWindowsOSVersion(); - -bool MakeErrMsg(std::string *ErrMsg, const std::string &prefix); - -// Include GetLastError() in a fatal error message. -LLVM_ATTRIBUTE_NORETURN inline void ReportLastErrorFatal(const char *Msg) { - std::string ErrMsg; - MakeErrMsg(&ErrMsg, Msg); - llvm::report_fatal_error(ErrMsg); -} - -template <typename HandleTraits> -class ScopedHandle { - typedef typename HandleTraits::handle_type handle_type; - handle_type Handle; - - ScopedHandle(const ScopedHandle &other) = delete; - void operator=(const ScopedHandle &other) = delete; -public: - ScopedHandle() - : Handle(HandleTraits::GetInvalid()) {} - - explicit ScopedHandle(handle_type h) - : Handle(h) {} - - ~ScopedHandle() { - if (HandleTraits::IsValid(Handle)) - HandleTraits::Close(Handle); - } - - handle_type take() { - handle_type t = Handle; - Handle = HandleTraits::GetInvalid(); - return t; - } - - ScopedHandle &operator=(handle_type h) { - if (HandleTraits::IsValid(Handle)) - HandleTraits::Close(Handle); - Handle = h; - return *this; - } - - // True if Handle is valid. - explicit operator bool() const { - return HandleTraits::IsValid(Handle) ? true : false; - } - - operator handle_type() const { - return Handle; - } -}; - -struct CommonHandleTraits { - typedef HANDLE handle_type; - - static handle_type GetInvalid() { - return INVALID_HANDLE_VALUE; - } - - static void Close(handle_type h) { - ::CloseHandle(h); - } - - static bool IsValid(handle_type h) { - return h != GetInvalid(); - } -}; - -struct JobHandleTraits : CommonHandleTraits { - static handle_type GetInvalid() { - return NULL; - } -}; - -struct CryptContextTraits : CommonHandleTraits { - typedef HCRYPTPROV handle_type; - - static handle_type GetInvalid() { - return 0; - } - - static void Close(handle_type h) { - ::CryptReleaseContext(h, 0); - } - - static bool IsValid(handle_type h) { - return h != GetInvalid(); - } -}; - -struct RegTraits : CommonHandleTraits { - typedef HKEY handle_type; - - static handle_type GetInvalid() { - return NULL; - } - - static void Close(handle_type h) { - ::RegCloseKey(h); - } - - static bool IsValid(handle_type h) { - return h != GetInvalid(); - } -}; - -struct FindHandleTraits : CommonHandleTraits { - static void Close(handle_type h) { - ::FindClose(h); - } -}; - -struct FileHandleTraits : CommonHandleTraits {}; - -typedef ScopedHandle<CommonHandleTraits> ScopedCommonHandle; -typedef ScopedHandle<FileHandleTraits> ScopedFileHandle; -typedef ScopedHandle<CryptContextTraits> ScopedCryptContext; -typedef ScopedHandle<RegTraits> ScopedRegHandle; -typedef ScopedHandle<FindHandleTraits> ScopedFindHandle; -typedef ScopedHandle<JobHandleTraits> ScopedJobHandle; - -template <class T> -class SmallVectorImpl; - -template <class T> -typename SmallVectorImpl<T>::const_pointer -c_str(SmallVectorImpl<T> &str) { - str.push_back(0); - str.pop_back(); - return str.data(); -} - -namespace sys { - -inline std::chrono::nanoseconds toDuration(FILETIME Time) { - ULARGE_INTEGER TimeInteger; - TimeInteger.LowPart = Time.dwLowDateTime; - TimeInteger.HighPart = Time.dwHighDateTime; - - // FILETIME's are # of 100 nanosecond ticks (1/10th of a microsecond) - return std::chrono::nanoseconds(100 * TimeInteger.QuadPart); -} - -inline TimePoint<> toTimePoint(FILETIME Time) { - ULARGE_INTEGER TimeInteger; - TimeInteger.LowPart = Time.dwLowDateTime; - TimeInteger.HighPart = Time.dwHighDateTime; - - // Adjust for different epoch - TimeInteger.QuadPart -= 11644473600ll * 10000000; - - // FILETIME's are # of 100 nanosecond ticks (1/10th of a microsecond) - return TimePoint<>(std::chrono::nanoseconds(100 * TimeInteger.QuadPart)); -} - -inline FILETIME toFILETIME(TimePoint<> TP) { - ULARGE_INTEGER TimeInteger; - TimeInteger.QuadPart = TP.time_since_epoch().count() / 100; - TimeInteger.QuadPart += 11644473600ll * 10000000; - - FILETIME Time; - Time.dwLowDateTime = TimeInteger.LowPart; - Time.dwHighDateTime = TimeInteger.HighPart; - return Time; -} - -namespace windows { -// Returns command line arguments. Unlike arguments given to main(), -// this function guarantees that the returned arguments are encoded in -// UTF-8 regardless of the current code page setting. -std::error_code GetCommandLineArguments(SmallVectorImpl<const char *> &Args, - BumpPtrAllocator &Alloc); -} // end namespace windows -} // end namespace sys -} // end namespace llvm. - -#endif |