23f2a2fc9f
`WIN32` is not defined when building a 64-bit executable on Windows with Clang. `_WIN32` is the more appropriate option here. http://web.archive.org/web/20191012035921/http://nadeausoftware.com/articles/2012/01/c_c_tip_how_use_compiler_predefined_macros_detect_operating_system contains a handy table/matrix of the options and why this is best.
125 lines
2.5 KiB
C++
125 lines
2.5 KiB
C++
/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2021 Lawrence Lee
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with RawTherapee. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifdef _WIN32
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#include <aclapi.h>
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#include <windows.h>
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#include "noncopyable.h"
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/**
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* Wrapper for pointers to memory allocated by HeapAlloc.
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*
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* Memory is automatically freed when the object goes out of scope.
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*/
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template <typename T>
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class WinHeapPtr : public rtengine::NonCopyable
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{
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private:
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const T ptr;
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public:
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WinHeapPtr() = delete;
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/** Allocates the specified number of bytes in the process heap. */
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explicit WinHeapPtr(SIZE_T bytes): ptr(static_cast<T>(HeapAlloc(GetProcessHeap(), 0, bytes))) {};
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~WinHeapPtr()
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{
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// HeapFree does a null check.
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HeapFree(GetProcessHeap(), 0, static_cast<LPVOID>(ptr));
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}
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T operator ->() const
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{
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return ptr;
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}
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operator T() const
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{
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return ptr;
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}
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};
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/**
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* Wrapper for HLOCAL pointers to memory allocated by LocalAlloc.
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*
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* Memory is automatically freed when the object goes out of scope.
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*/
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template <typename T>
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class WinLocalPtr : public rtengine::NonCopyable
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{
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private:
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const T ptr;
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public:
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WinLocalPtr() = delete;
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/** Wraps a raw pointer. */
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WinLocalPtr(T pointer): ptr(pointer) {};
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~WinLocalPtr()
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{
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// LocalFree does a null check.
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LocalFree(static_cast<HLOCAL>(ptr));
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}
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T operator ->() const
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{
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return ptr;
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}
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operator T() const
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{
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return ptr;
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}
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};
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/**
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* Wrapper for HANDLEs.
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*
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* Handles are automatically closed when the object goes out of scope.
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*/
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class WinHandle : public rtengine::NonCopyable
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{
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private:
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const HANDLE handle;
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public:
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WinHandle() = delete;
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/** Wraps a HANDLE. */
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WinHandle(HANDLE handle): handle(handle) {};
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~WinHandle()
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{
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CloseHandle(handle);
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}
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operator HANDLE() const
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{
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return handle;
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}
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};
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#endif
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