forked from 0ad/0ad
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/* Copyright (c) 2011 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* 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,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef INCLUDED_ALLOCATORS_ALLOCATOR_CHECKER
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#define INCLUDED_ALLOCATORS_ALLOCATOR_CHECKER
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#include <map>
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/**
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* allocator test rig.
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* call from each allocator operation to sanity-check them.
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* should only be used during debug mode due to serious overhead.
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**/
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class AllocatorChecker
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{
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public:
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void OnAllocate(void* p, size_t size)
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{
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const Allocs::value_type item = std::make_pair(p, size);
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std::pair<Allocs::iterator, bool> ret = allocs.insert(item);
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ENSURE(ret.second == true); // wasn't already in map
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}
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void OnDeallocate(void* p, size_t size)
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{
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Allocs::iterator it = allocs.find(p);
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if(it == allocs.end())
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DEBUG_WARN_ERR(ERR::LOGIC); // freeing invalid pointer
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else
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{
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// size must match what was passed to OnAllocate
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const size_t allocated_size = it->second;
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ENSURE(size == allocated_size);
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allocs.erase(it);
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}
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}
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/**
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* allocator is resetting itself, i.e. wiping out all allocs.
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**/
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void OnClear()
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{
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allocs.clear();
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}
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private:
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typedef std::map<void*, size_t> Allocs;
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Allocs allocs;
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};
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#endif // #ifndef INCLUDED_ALLOCATORS_ALLOCATOR_CHECKER
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