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Diffstat (limited to 'chromium/base/win/scoped_hglobal.h')
-rw-r--r-- | chromium/base/win/scoped_hglobal.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/chromium/base/win/scoped_hglobal.h b/chromium/base/win/scoped_hglobal.h new file mode 100644 index 00000000000..891e6cdfc87 --- /dev/null +++ b/chromium/base/win/scoped_hglobal.h @@ -0,0 +1,52 @@ +// Copyright (c) 2010 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef BASE_WIN_SCOPED_HGLOBAL_H_ +#define BASE_WIN_SCOPED_HGLOBAL_H_ + +#include <windows.h> + +#include "base/basictypes.h" + +namespace base { +namespace win { + +// Like ScopedHandle except for HGLOBAL. +template<class T> +class ScopedHGlobal { + public: + explicit ScopedHGlobal(HGLOBAL glob) : glob_(glob) { + data_ = static_cast<T*>(GlobalLock(glob_)); + } + ~ScopedHGlobal() { + GlobalUnlock(glob_); + } + + T* get() { return data_; } + + size_t Size() const { return GlobalSize(glob_); } + + T* operator->() const { + assert(data_ != 0); + return data_; + } + + T* release() { + T* data = data_; + data_ = NULL; + return data; + } + + private: + HGLOBAL glob_; + + T* data_; + + DISALLOW_COPY_AND_ASSIGN(ScopedHGlobal); +}; + +} // namespace win +} // namespace base + +#endif // BASE_WIN_SCOPED_HGLOBAL_H_ |