Files
OpenSpace/modules/globebrowsing/cache/memoryawarecacheable.h
2017-04-17 15:00:15 -04:00

59 lines
3.2 KiB
C++

/*****************************************************************************************
* *
* OpenSpace *
* *
* Copyright (c) 2014-2017 *
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
* software and associated documentation files (the "Software"), to deal in the Software *
* without restriction, including without limitation the rights to use, copy, modify, *
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to the following *
* conditions: *
* *
* The above copyright notice and this permission notice shall be included in all copies *
* or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
****************************************************************************************/
#ifndef __OPENSPACE_MODULE_GLOBEBROWSING___MEMORY_AWARE_CACHEABLE___H__
#define __OPENSPACE_MODULE_GLOBEBROWSING___MEMORY_AWARE_CACHEABLE___H__
namespace openspace {
namespace globebrowsing {
namespace cache {
/**
* Base class to be extended by classes that need to be cached and make use of the
* memoryImpact interface. A class extending <code>MemoryAwareCacheable</code> needs to
* know its memory impact at initialization and hence provide the memory impact in its
* constructors. The memory impact can not change during the lifetime of an object that is
* a <code>MemoryAwareCacheable</code>.
*/
class MemoryAwareCacheable {
public:
/**
* \param memoryImpact is the memory impact of the object. Can for example be given
* in kilobytes.
*/
MemoryAwareCacheable(size_t memoryImpact) : _memoryImpact(memoryImpact) {};
~MemoryAwareCacheable() {};
size_t memoryImpact() { return _memoryImpact; };
protected:
size_t _memoryImpact;
};
} // namespace cache
} // namespace globebrowsing
} // namespace openspace
#endif // __OPENSPACE_MODULE_GLOBEBROWSING___MEMORY_AWARE_CACHEABLE___H__