15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2010 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef BASE_WIN_SCOPED_HGLOBAL_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define BASE_WIN_SCOPED_HGLOBAL_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace base { 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace win { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Like ScopedHandle except for HGLOBAL. 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template<class T> 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ScopedHGlobal { 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit ScopedHGlobal(HGLOBAL glob) : glob_(glob) { 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data_ = static_cast<T*>(GlobalLock(glob_)); 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~ScopedHGlobal() { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GlobalUnlock(glob_); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T* get() { return data_; } 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t Size() const { return GlobalSize(glob_); } 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T* operator->() const { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(data_ != 0); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return data_; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T* release() { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T* data = data_; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data_ = NULL; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return data; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HGLOBAL glob_; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T* data_; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ScopedHGlobal); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace win 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace base 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // BASE_WIN_SCOPED_HGLOBAL_H_ 53