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#pragma once
#include "ref.h"
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
struct ISimpleMemoryUsageTracker
: public TRefCounted
{
virtual bool Acquire(i64 size) = 0;
virtual void Release(i64 size) = 0;
virtual TSharedRef Track(TSharedRef reference, bool keepExistingTracking) = 0;
};
DEFINE_REFCOUNTED_TYPE(ISimpleMemoryUsageTracker)
////////////////////////////////////////////////////////////////////////////////
class TSimpleMemoryUsageTrackerGuard
: private TNonCopyable
{
public:
TSimpleMemoryUsageTrackerGuard() = default;
TSimpleMemoryUsageTrackerGuard(const TSimpleMemoryUsageTrackerGuard& other) = delete;
TSimpleMemoryUsageTrackerGuard(TSimpleMemoryUsageTrackerGuard&& other);
~TSimpleMemoryUsageTrackerGuard();
TSimpleMemoryUsageTrackerGuard& operator=(const TSimpleMemoryUsageTrackerGuard& other) = delete;
TSimpleMemoryUsageTrackerGuard& operator=(TSimpleMemoryUsageTrackerGuard&& other);
static TSimpleMemoryUsageTrackerGuard Build(ISimpleMemoryUsageTrackerPtr tracker);
void SetSize(i64 size);
void Release();
private:
ISimpleMemoryUsageTrackerPtr Tracker_;
i64 AcquiredSize_ = 0;
void MoveFrom(TSimpleMemoryUsageTrackerGuard&& other);
};
////////////////////////////////////////////////////////////////////////////////
ISimpleMemoryUsageTrackerPtr GetNullSimpleMemoryUsageTracker();
TSharedRef TrackMemory(
const ISimpleMemoryUsageTrackerPtr& tracker,
TSharedRef reference,
bool keepExistingTracking = false);
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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