[go: nahoru, domu]

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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 SQL_SQL_MEMORY_DUMP_PROVIDER_H
#define SQL_SQL_MEMORY_DUMP_PROVIDER_H
#include "base/component_export.h"
#include "base/macros.h"
#include "base/memory/singleton.h"
#include "base/trace_event/memory_dump_provider.h"
namespace sql {
// Adds process-wide memory usage statistics about sqlite to chrome://tracing.
// sql::Database::OnMemoryDump adds per-connection memory statistics.
class COMPONENT_EXPORT(SQL) SqlMemoryDumpProvider
: public base::trace_event::MemoryDumpProvider {
public:
static SqlMemoryDumpProvider* GetInstance();
// MemoryDumpProvider implementation.
bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
base::trace_event::ProcessMemoryDump* pmd) override;
private:
friend struct base::DefaultSingletonTraits<SqlMemoryDumpProvider>;
SqlMemoryDumpProvider();
~SqlMemoryDumpProvider() override;
DISALLOW_COPY_AND_ASSIGN(SqlMemoryDumpProvider);
};
} // namespace sql
#endif // SQL_SQL_MEMORY_DUMP_PROVIDER_H