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/* Copyright (C) 2011 Wildfire Games.
*
* 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 INCLUDED_ALLOCATORS_ALLOCATOR_CHECKER
#define INCLUDED_ALLOCATORS_ALLOCATOR_CHECKER
#include <map>
/**
* allocator test rig.
* call from each allocator operation to sanity-check them.
* should only be used during debug mode due to serious overhead.
**/
class AllocatorChecker
{
public:
void OnAllocate(void* p, size_t size)
{
const Allocs::value_type item = std::make_pair(p, size);
std::pair<Allocs::iterator, bool> ret = allocs.insert(item);
ENSURE(ret.second == true); // wasn't already in map
}
void OnDeallocate(void* p, size_t size)
{
Allocs::iterator it = allocs.find(p);
if(it == allocs.end())
DEBUG_WARN_ERR(ERR::LOGIC); // freeing invalid pointer
else
{
// size must match what was passed to OnAllocate
const size_t allocated_size = it->second;
ENSURE(size == allocated_size);
allocs.erase(it);
}
}
/**
* allocator is resetting itself, i.e. wiping out all allocs.
**/
void OnClear()
{
allocs.clear();
}
private:
typedef std::map<void*, size_t> Allocs;
Allocs allocs;
};
#endif // #ifndef INCLUDED_ALLOCATORS_ALLOCATOR_CHECKER
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