1 //===- Win32/Win32.h - Common Win32 Include File ----------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines things specific to Win32 implementations.
12 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 //=== WARNING: Implementation here must contain only generic Win32 code that
16 //=== is guaranteed to work on *all* Win32 variants.
17 //===----------------------------------------------------------------------===//
19 // mingw-w64 tends to define it as 0x0502 in its headers.
23 // Require at least Windows XP(5.1) API.
24 #define _WIN32_WINNT 0x0501
25 #define _WIN32_IE 0x0600 // MinGW at it again.
26 #define WIN32_LEAN_AND_MEAN
28 #include "llvm/ADT/SmallVector.h"
29 #include "llvm/ADT/StringRef.h"
30 #include "llvm/Config/config.h" // Get build system configuration settings
31 #include "llvm/Support/Compiler.h"
32 #include "llvm/Support/system_error.h"
39 inline bool MakeErrMsg(std::string* ErrMsg, const std::string& prefix) {
43 DWORD R = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
44 FORMAT_MESSAGE_FROM_SYSTEM,
45 NULL, GetLastError(), 0, (LPSTR)&buffer, 1, NULL);
47 *ErrMsg = prefix + buffer;
49 *ErrMsg = prefix + "Unknown error";
55 template <typename HandleTraits>
57 typedef typename HandleTraits::handle_type handle_type;
60 ScopedHandle(const ScopedHandle &other); // = delete;
61 void operator=(const ScopedHandle &other); // = delete;
64 : Handle(HandleTraits::GetInvalid()) {}
66 explicit ScopedHandle(handle_type h)
70 if (HandleTraits::IsValid(Handle))
71 HandleTraits::Close(Handle);
75 handle_type t = Handle;
76 Handle = HandleTraits::GetInvalid();
80 ScopedHandle &operator=(handle_type h) {
81 if (HandleTraits::IsValid(Handle))
82 HandleTraits::Close(Handle);
87 // True if Handle is valid.
88 LLVM_EXPLICIT operator bool() const {
89 return HandleTraits::IsValid(Handle) ? true : false;
92 operator handle_type() const {
97 struct CommonHandleTraits {
98 typedef HANDLE handle_type;
100 static handle_type GetInvalid() {
101 return INVALID_HANDLE_VALUE;
104 static void Close(handle_type h) {
108 static bool IsValid(handle_type h) {
109 return h != GetInvalid();
113 struct JobHandleTraits : CommonHandleTraits {
114 static handle_type GetInvalid() {
119 struct CryptContextTraits : CommonHandleTraits {
120 typedef HCRYPTPROV handle_type;
122 static handle_type GetInvalid() {
126 static void Close(handle_type h) {
127 ::CryptReleaseContext(h, 0);
130 static bool IsValid(handle_type h) {
131 return h != GetInvalid();
135 struct FindHandleTraits : CommonHandleTraits {
136 static void Close(handle_type h) {
141 struct FileHandleTraits : CommonHandleTraits {};
143 typedef ScopedHandle<CommonHandleTraits> ScopedCommonHandle;
144 typedef ScopedHandle<FileHandleTraits> ScopedFileHandle;
145 typedef ScopedHandle<CryptContextTraits> ScopedCryptContext;
146 typedef ScopedHandle<FindHandleTraits> ScopedFindHandle;
147 typedef ScopedHandle<JobHandleTraits> ScopedJobHandle;
151 class SmallVectorImpl;
154 typename SmallVectorImpl<T>::const_pointer
155 c_str(SmallVectorImpl<T> &str) {
163 error_code UTF8ToUTF16(StringRef utf8,
164 SmallVectorImpl<wchar_t> &utf16);
165 error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
166 SmallVectorImpl<char> &utf8);
167 } // end namespace windows
168 } // end namespace sys
169 } // end namespace llvm.