diff options
Diffstat (limited to 'contrib/llvm/lib/Support/Windows/Windows.h')
-rw-r--r-- | contrib/llvm/lib/Support/Windows/Windows.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Support/Windows/Windows.h b/contrib/llvm/lib/Support/Windows/Windows.h new file mode 100644 index 0000000..5c1da0d --- /dev/null +++ b/contrib/llvm/lib/Support/Windows/Windows.h @@ -0,0 +1,150 @@ +//===- Win32/Win32.h - Common Win32 Include File ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines things specific to Win32 implementations. +// +//===----------------------------------------------------------------------===// + +//===----------------------------------------------------------------------===// +//=== WARNING: Implementation here must contain only generic Win32 code that +//=== is guaranteed to work on *all* Win32 variants. +//===----------------------------------------------------------------------===// + +// mingw-w64 tends to define it as 0x0502 in its headers. +#undef _WIN32_WINNT + +// Require at least Windows XP(5.1) API. +#define _WIN32_WINNT 0x0501 +#define _WIN32_IE 0x0600 // MinGW at it again. +#define WIN32_LEAN_AND_MEAN + +#include "llvm/Config/config.h" // Get build system configuration settings +#include <windows.h> +#include <wincrypt.h> +#include <shlobj.h> +#include <cassert> +#include <string> + +inline bool MakeErrMsg(std::string* ErrMsg, const std::string& prefix) { + if (!ErrMsg) + return true; + char *buffer = NULL; + FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, + NULL, GetLastError(), 0, (LPSTR)&buffer, 1, NULL); + *ErrMsg = prefix + buffer; + LocalFree(buffer); + return true; +} + +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. + 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 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<FindHandleTraits> ScopedFindHandle; +typedef ScopedHandle<JobHandleTraits> ScopedJobHandle; + +namespace llvm { +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(); +} +} // end namespace llvm. |