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.
22 // Require at least Windows XP(5.1) API.
23 #define _WIN32_WINNT 0x0501
24 #define _WIN32_IE 0x0600 // MinGW at it again.
25 #define WIN32_LEAN_AND_MEAN
27 #include "llvm/ADT/SmallVector.h"
28 #include "llvm/ADT/StringRef.h"
29 #include "llvm/Config/config.h" // Get build system configuration settings
30 #include "llvm/Support/Compiler.h"
31 #include "llvm/Support/system_error.h"
38 inline bool MakeErrMsg(std::string* ErrMsg, const std::string& prefix) {
42 DWORD R = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
43 FORMAT_MESSAGE_FROM_SYSTEM,
44 NULL, GetLastError(), 0, (LPSTR)&buffer, 1, NULL);
46 *ErrMsg = prefix + buffer;
48 *ErrMsg = prefix + "Unknown error";
54 template <typename HandleTraits>
56 typedef typename HandleTraits::handle_type handle_type;
59 ScopedHandle(const ScopedHandle &other); // = delete;
60 void operator=(const ScopedHandle &other); // = delete;
63 : Handle(HandleTraits::GetInvalid()) {}
65 explicit ScopedHandle(handle_type h)
69 if (HandleTraits::IsValid(Handle))
70 HandleTraits::Close(Handle);
74 handle_type t = Handle;
75 Handle = HandleTraits::GetInvalid();
79 ScopedHandle &operator=(handle_type h) {
80 if (HandleTraits::IsValid(Handle))
81 HandleTraits::Close(Handle);
86 // True if Handle is valid.
87 LLVM_EXPLICIT operator bool() const {
88 return HandleTraits::IsValid(Handle) ? true : false;
91 operator handle_type() const {
96 struct CommonHandleTraits {
97 typedef HANDLE handle_type;
99 static handle_type GetInvalid() {
100 return INVALID_HANDLE_VALUE;
103 static void Close(handle_type h) {
107 static bool IsValid(handle_type h) {
108 return h != GetInvalid();
112 struct JobHandleTraits : CommonHandleTraits {
113 static handle_type GetInvalid() {
118 struct CryptContextTraits : CommonHandleTraits {
119 typedef HCRYPTPROV handle_type;
121 static handle_type GetInvalid() {
125 static void Close(handle_type h) {
126 ::CryptReleaseContext(h, 0);
129 static bool IsValid(handle_type h) {
130 return h != GetInvalid();
134 struct FindHandleTraits : CommonHandleTraits {
135 static void Close(handle_type h) {
140 struct FileHandleTraits : CommonHandleTraits {};
142 typedef ScopedHandle<CommonHandleTraits> ScopedCommonHandle;
143 typedef ScopedHandle<FileHandleTraits> ScopedFileHandle;
144 typedef ScopedHandle<CryptContextTraits> ScopedCryptContext;
145 typedef ScopedHandle<FindHandleTraits> ScopedFindHandle;
146 typedef ScopedHandle<JobHandleTraits> ScopedJobHandle;
150 class SmallVectorImpl;
153 typename SmallVectorImpl<T>::const_pointer
154 c_str(SmallVectorImpl<T> &str) {
162 error_code UTF8ToUTF16(StringRef utf8,
163 SmallVectorImpl<wchar_t> &utf16);
164 error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
165 SmallVectorImpl<char> &utf8);
166 } // end namespace windows
167 } // end namespace sys
168 } // end namespace llvm.