forked from OSchip/llvm-project
121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
//===- Win32/Win32.h - Common Win32 Include File ----------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines things specific to Win32 implementations.
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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//=== WARNING: Implementation here must contain only generic Win32 code that
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//=== is guaranteed to work on *all* Win32 variants.
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//===----------------------------------------------------------------------===//
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// mingw-w64 tends to define it as 0x0502 in its headers.
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#undef _WIN32_WINNT
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// Require at least Windows 2000 API.
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#define _WIN32_WINNT 0x0500
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#define _WIN32_IE 0x0500 // MinGW at it again.
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#define WIN32_LEAN_AND_MEAN
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#include "llvm/Config/config.h" // Get build system configuration settings
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#include <windows.h>
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#include <shlobj.h>
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#include <cassert>
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#include <string>
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inline bool MakeErrMsg(std::string* ErrMsg, const std::string& prefix) {
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if (!ErrMsg)
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return true;
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char *buffer = NULL;
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FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
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NULL, GetLastError(), 0, (LPSTR)&buffer, 1, NULL);
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*ErrMsg = prefix + buffer;
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LocalFree(buffer);
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return true;
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}
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class AutoHandle {
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HANDLE handle;
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public:
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AutoHandle(HANDLE h) : handle(h) {}
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~AutoHandle() {
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if (handle)
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CloseHandle(handle);
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}
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operator HANDLE() {
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return handle;
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}
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AutoHandle &operator=(HANDLE h) {
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handle = h;
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return *this;
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}
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};
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template <class HandleType, uintptr_t InvalidHandle,
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class DeleterType, DeleterType D>
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class ScopedHandle {
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HandleType Handle;
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public:
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ScopedHandle() : Handle(InvalidHandle) {}
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ScopedHandle(HandleType handle) : Handle(handle) {}
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~ScopedHandle() {
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if (Handle != HandleType(InvalidHandle))
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D(Handle);
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}
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HandleType take() {
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HandleType temp = Handle;
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Handle = HandleType(InvalidHandle);
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return temp;
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}
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operator HandleType() const { return Handle; }
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ScopedHandle &operator=(HandleType handle) {
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Handle = handle;
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return *this;
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}
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typedef void (*unspecified_bool_type)();
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static void unspecified_bool_true() {}
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// True if Handle is valid.
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operator unspecified_bool_type() const {
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return Handle == HandleType(InvalidHandle) ? 0 : unspecified_bool_true;
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}
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bool operator!() const {
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return Handle == HandleType(InvalidHandle);
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}
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};
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typedef ScopedHandle<HANDLE, uintptr_t(-1),
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BOOL (WINAPI*)(HANDLE), ::FindClose>
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ScopedFindHandle;
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namespace llvm {
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template <class T>
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class SmallVectorImpl;
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template <class T>
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typename SmallVectorImpl<T>::const_pointer
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c_str(SmallVectorImpl<T> &str) {
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str.push_back(0);
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str.pop_back();
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return str.data();
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}
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} // end namespace llvm.
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