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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_PROCESS_MEMORY_MAPS_H_
#define BASE_TRACE_EVENT_PROCESS_MEMORY_MAPS_H_
#include <string>
#include <vector>
#include "base/base_export.h"
#include "base/basictypes.h"
namespace base {
namespace trace_event {
class TracedValue;
// Data model for process-wide memory stats.
class BASE_EXPORT ProcessMemoryMaps {
public:
struct BASE_EXPORT VMRegion {
static const uint32 kProtectionFlagsRead;
static const uint32 kProtectionFlagsWrite;
static const uint32 kProtectionFlagsExec;
VMRegion();
uint64 start_address;
uint64 size_in_bytes;
uint32 protection_flags;
std::string mapped_file;
// private_dirty_resident + private_clean_resident + shared_dirty_resident +
// shared_clean_resident = resident set size.
uint64 byte_stats_private_dirty_resident;
uint64 byte_stats_private_clean_resident;
uint64 byte_stats_shared_dirty_resident;
uint64 byte_stats_shared_clean_resident;
uint64 byte_stats_swapped;
// For multiprocess accounting.
uint64 byte_stats_proportional_resident;
};
ProcessMemoryMaps();
~ProcessMemoryMaps();
void AddVMRegion(const VMRegion& region) { vm_regions_.push_back(region); }
const std::vector<VMRegion>& vm_regions() const { return vm_regions_; }
// Called at trace generation time to populate the TracedValue.
void AsValueInto(TracedValue* value) const;
// Clears up all the VMRegion(s) stored.
void Clear();
private:
std::vector<VMRegion> vm_regions_;
DISALLOW_COPY_AND_ASSIGN(ProcessMemoryMaps);
};
} // namespace trace_event
} // namespace base
#endif // BASE_TRACE_EVENT_PROCESS_MEMORY_MAPS_H_
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