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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_DATABASE_MEMORY_DUMP_PROVIDER_H_
#define SQL_DATABASE_MEMORY_DUMP_PROVIDER_H_
#include <string>
#include "base/macros.h"
#include "base/synchronization/lock.h"
#include "base/trace_event/memory_dump_provider.h"
struct sqlite3;
namespace base {
namespace trace_event {
class ProcessMemoryDump;
}
} // namespace base
namespace sql {
class DatabaseMemoryDumpProvider
: public base::trace_event::MemoryDumpProvider {
public:
DatabaseMemoryDumpProvider(sqlite3* db, const std::string& name);
~DatabaseMemoryDumpProvider() override;
void ResetDatabase();
// base::trace_event::MemoryDumpProvider implementation.
bool OnMemoryDump(
const base::trace_event::MemoryDumpArgs& args,
base::trace_event::ProcessMemoryDump* process_memory_dump) override;
// Reports memory usage into provided memory dump with the given |dump_name|.
// Called by sql::Database when its owner asks it to report memory usage.
bool ReportMemoryUsage(base::trace_event::ProcessMemoryDump* pmd,
const std::string& dump_name);
private:
bool GetDbMemoryUsage(int* cache_size, int* schema_size, int* statement_size);
std::string FormatDumpName() const;
sqlite3* db_; // not owned.
base::Lock lock_;
std::string connection_name_;
DISALLOW_COPY_AND_ASSIGN(DatabaseMemoryDumpProvider);
};
} // namespace sql
#endif // SQL_DATABASE_MEMORY_DUMP_PROVIDER_H_
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