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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_TRACE_EVENT_WINHEAP_DUMP_PROVIDER_WIN_H_
#define BASE_TRACE_EVENT_WINHEAP_DUMP_PROVIDER_WIN_H_
#include <set>
#include "base/memory/singleton.h"
#include "base/trace_event/memory_dump_provider.h"
namespace base {
namespace trace_event {
// A structure containing some information about a given heap.
struct WinHeapInfo {
HANDLE heap_id;
size_t committed_size;
size_t allocated_size;
size_t block_count;
};
// Dump provider which collects process-wide heap memory stats. This provider
// iterates over all the heaps of the current process to gather some metrics
// about them.
class BASE_EXPORT WinHeapDumpProvider : public MemoryDumpProvider {
public:
static WinHeapDumpProvider* GetInstance();
// MemoryDumpProvider implementation.
bool OnMemoryDump(ProcessMemoryDump* pmd) override;
private:
friend struct DefaultSingletonTraits<WinHeapDumpProvider>;
// Retrieves the information about given heap. The |heap_info| should contain
// a valid handle to an existing heap. The blocks contained in the
// |block_to_skip| set will be ignored.
bool GetHeapInformation(WinHeapInfo* heap_info,
const std::set<void*>& block_to_skip);
WinHeapDumpProvider() {}
~WinHeapDumpProvider() override {}
DISALLOW_COPY_AND_ASSIGN(WinHeapDumpProvider);
};
} // namespace trace_event
} // namespace base
#endif // BASE_TRACE_EVENT_WINHEAP_DUMP_PROVIDER_WIN_H_
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