1 //===- Win32/Win32.h - Common Win32 Include File ----------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines things specific to Win32 implementations.
11 //
12 //===----------------------------------------------------------------------===//
13
14 //===----------------------------------------------------------------------===//
15 //=== WARNING: Implementation here must contain only generic Win32 code that
16 //=== is guaranteed to work on *all* Win32 variants.
17 //===----------------------------------------------------------------------===//
18
19 // mingw-w64 tends to define it as 0x0502 in its headers.
20 #undef _WIN32_WINNT
21
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
26
27 #include "llvm/Config/config.h" // Get build system configuration settings
28 #include <windows.h>
29 #include <shlobj.h>
30 #include <cassert>
31 #include <string>
32
MakeErrMsg(std::string * ErrMsg,const std::string & prefix)33 inline bool MakeErrMsg(std::string* ErrMsg, const std::string& prefix) {
34 if (!ErrMsg)
35 return true;
36 char *buffer = NULL;
37 FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
38 NULL, GetLastError(), 0, (LPSTR)&buffer, 1, NULL);
39 *ErrMsg = prefix + buffer;
40 LocalFree(buffer);
41 return true;
42 }
43
44 class AutoHandle {
45 HANDLE handle;
46
47 public:
AutoHandle(HANDLE h)48 AutoHandle(HANDLE h) : handle(h) {}
49
~AutoHandle()50 ~AutoHandle() {
51 if (handle)
52 CloseHandle(handle);
53 }
54
HANDLE()55 operator HANDLE() {
56 return handle;
57 }
58
59 AutoHandle &operator=(HANDLE h) {
60 handle = h;
61 return *this;
62 }
63 };
64
65 template <class HandleType, uintptr_t InvalidHandle,
66 class DeleterType, DeleterType D>
67 class ScopedHandle {
68 HandleType Handle;
69
70 public:
ScopedHandle()71 ScopedHandle() : Handle(InvalidHandle) {}
ScopedHandle(HandleType handle)72 ScopedHandle(HandleType handle) : Handle(handle) {}
73
~ScopedHandle()74 ~ScopedHandle() {
75 if (Handle != HandleType(InvalidHandle))
76 D(Handle);
77 }
78
take()79 HandleType take() {
80 HandleType temp = Handle;
81 Handle = HandleType(InvalidHandle);
82 return temp;
83 }
84
HandleType()85 operator HandleType() const { return Handle; }
86
87 ScopedHandle &operator=(HandleType handle) {
88 Handle = handle;
89 return *this;
90 }
91
92 typedef void (*unspecified_bool_type)();
unspecified_bool_true()93 static void unspecified_bool_true() {}
94
95 // True if Handle is valid.
unspecified_bool_type()96 operator unspecified_bool_type() const {
97 return Handle == HandleType(InvalidHandle) ? 0 : unspecified_bool_true;
98 }
99
100 bool operator!() const {
101 return Handle == HandleType(InvalidHandle);
102 }
103 };
104
105 typedef ScopedHandle<HANDLE, uintptr_t(-1),
106 BOOL (WINAPI*)(HANDLE), ::FindClose>
107 ScopedFindHandle;
108
109 namespace llvm {
110 template <class T>
111 class SmallVectorImpl;
112
113 template <class T>
114 typename SmallVectorImpl<T>::const_pointer
c_str(SmallVectorImpl<T> & str)115 c_str(SmallVectorImpl<T> &str) {
116 str.push_back(0);
117 str.pop_back();
118 return str.data();
119 }
120 } // end namespace llvm.
121