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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef MemoryInstrumentationImpl_h
#define MemoryInstrumentationImpl_h
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/MemoryInstrumentation.h>
#include <wtf/Vector.h>
#include <wtf/text/StringHash.h>
using WTF::MemoryObjectType;
namespace WebCore {
typedef HashSet<const void*> VisitedObjects;
typedef HashMap<String, size_t> TypeNameToSizeMap;
class MemoryInstrumentationClientImpl : public WTF::MemoryInstrumentationClient {
public:
typedef HashMap<const void*, size_t> ObjectToSizeMap;
MemoryInstrumentationClientImpl()
: m_totalCountedObjects(0)
, m_totalObjectsNotInAllocatedSet(0)
{ }
size_t totalSize(MemoryObjectType objectType) const
{
TypeToSizeMap::const_iterator i = m_totalSizes.find(objectType);
return i == m_totalSizes.end() ? 0 : i->value;
}
size_t reportedSizeForAllTypes() const
{
size_t size = 0;
for (TypeToSizeMap::const_iterator i = m_totalSizes.begin(); i != m_totalSizes.end(); ++i)
size += i->value;
return size;
}
TypeNameToSizeMap sizesMap() const;
VisitedObjects& allocatedObjects() { return m_allocatedObjects; }
const ObjectToSizeMap& countedObjects() { return m_countedObjects; }
bool checkInstrumentedObjects() const { return !m_allocatedObjects.isEmpty(); }
size_t visitedObjects() const { return m_visitedObjects.size(); }
size_t totalCountedObjects() const { return m_totalCountedObjects; }
size_t totalObjectsNotInAllocatedSet() const { return m_totalObjectsNotInAllocatedSet; }
virtual void countObjectSize(const void*, MemoryObjectType, size_t) OVERRIDE;
virtual bool visited(const void*) OVERRIDE;
virtual bool checkCountedObject(const void*) OVERRIDE;
void reportMemoryUsage(MemoryObjectInfo*) const;
private:
typedef HashMap<MemoryObjectType, size_t> TypeToSizeMap;
TypeToSizeMap m_totalSizes;
VisitedObjects m_visitedObjects;
VisitedObjects m_allocatedObjects;
ObjectToSizeMap m_countedObjects;
size_t m_totalCountedObjects;
size_t m_totalObjectsNotInAllocatedSet;
};
class MemoryInstrumentationImpl : public WTF::MemoryInstrumentation {
public:
explicit MemoryInstrumentationImpl(WTF::MemoryInstrumentationClient* client)
: MemoryInstrumentation(client)
{
}
size_t selfSize() const;
void reportMemoryUsage(MemoryObjectInfo*) const;
private:
virtual void deferInstrumentedPointer(PassOwnPtr<InstrumentedPointerBase>) OVERRIDE;
virtual void processDeferredInstrumentedPointers() OVERRIDE;
Vector<OwnPtr<InstrumentedPointerBase> > m_deferredInstrumentedPointers;
};
} // namespace WebCore
#endif // !defined(MemoryInstrumentationImpl_h)
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