mirror of
https://github.com/OpenSpace/OpenSpace.git
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Alexander Bock
512e35bea6
* Updated GDAL version to 2.4.1 * Add vtune performance commands * Add Nvtools performance commands * Add warning if GDAL dataset could not be loaded
86 lines
3.3 KiB
C++
86 lines
3.3 KiB
C++
/**********************************************************************
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* $Id: cpl_auto_close.h 928c6bcbd3901094d5680a73a623acc194f55afc 2018-10-07 18:11:27 +0800 小旋风 $
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*
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* Name: cpl_auto_close.h
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* Project: CPL - Common Portability Library
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* Purpose: CPL Auto Close handling
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* Author: Liu Yimin, ymwh@foxmail.com
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*
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**********************************************************************
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* Copyright (c) 2018, Liu Yimin
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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****************************************************************************/
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#ifndef CPL_AUTO_CLOSE_H_INCLUDED
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#define CPL_AUTO_CLOSE_H_INCLUDED
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#if defined(__cplusplus)
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#include <type_traits>
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/************************************************************************/
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/* CPLAutoClose */
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/************************************************************************/
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/**
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* The class use the destructor to automatically close the resource.
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* Example:
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* GDALDatasetH hDset = GDALOpen(path,GA_ReadOnly);
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* CPLAutoClose<GDALDatasetH,void(*)(void*)> autoclosehDset(hDset,GDALClose);
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* Or:
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* GDALDatasetH hDset = GDALOpen(path,GA_ReadOnly);
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* CPL_AUTO_CLOSE_WARP(hDset,GDALClose);
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*/
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template<typename _Ty,typename _Dx>
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class CPLAutoClose {
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static_assert( !std::is_const<_Ty>::value && std::is_pointer<_Ty>::value,
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"_Ty must is pointer type,_Dx must is function type");
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private:
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_Ty& m_ResourcePtr;
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_Dx m_CloseFunc;
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private:
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CPLAutoClose(const CPLAutoClose&) = delete;
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void operator=(const CPLAutoClose&) = delete;
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public:
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/**
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* @brief Constructor.
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* @param ptr Pointer to the resource object.
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* @param dt Resource release(close) function.
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*/
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explicit CPLAutoClose(_Ty& ptr,_Dx dt) :
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m_ResourcePtr(ptr),
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m_CloseFunc(dt)
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{}
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/**
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* @brief Destructor.
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*/
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~CPLAutoClose()
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{
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if(m_ResourcePtr && m_CloseFunc)
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m_CloseFunc(m_ResourcePtr);
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}
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};
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#define CPL_AUTO_CLOSE_WARP(hObject,closeFunc) \
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CPLAutoClose<decltype(hObject),decltype(closeFunc)*> tAutoClose##hObject(hObject,closeFunc)
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#endif /* __cplusplus */
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#endif /* CPL_AUTO_CLOSE_H_INCLUDED */
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