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#pragma once
#include <library/cpp/yt/misc/port.h>
#include <library/cpp/yt/misc/source_location.h>
#include <util/system/defaults.h>
#include <atomic>
#include <typeinfo>
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
using TRefCountedTypeCookie = int;
const int NullRefCountedTypeCookie = -1;
using TRefCountedTypeKey = const void*;
////////////////////////////////////////////////////////////////////////////////
// Used to avoid including heavy ref_counted_tracker.h
class TRefCountedTrackerFacade
{
public:
static TRefCountedTypeCookie GetCookie(
TRefCountedTypeKey typeKey,
size_t instanceSize,
const NYT::TSourceLocation& location);
static void AllocateInstance(TRefCountedTypeCookie cookie);
static void FreeInstance(TRefCountedTypeCookie cookie);
static void AllocateTagInstance(TRefCountedTypeCookie cookie);
static void FreeTagInstance(TRefCountedTypeCookie cookie);
static void AllocateSpace(TRefCountedTypeCookie cookie, size_t size);
static void FreeSpace(TRefCountedTypeCookie cookie, size_t size);
// Typically invoked from GDB console.
// Dumps the ref-counted statistics sorted by "bytes alive".
static void Dump();
};
////////////////////////////////////////////////////////////////////////////////
namespace {
//! A per-translation unit tag type.
struct TCurrentTranslationUnitTag
{ };
} // namespace
template <class T>
TRefCountedTypeKey GetRefCountedTypeKey();
template <class T>
TRefCountedTypeCookie GetRefCountedTypeCookie();
template <class T, class TTag, int Counter>
TRefCountedTypeCookie GetRefCountedTypeCookieWithLocation(
const TSourceLocation& location);
////////////////////////////////////////////////////////////////////////////////
//! A lightweight mix-in that integrates any class into TRefCountedTracker statistics.
/*!
* |T| must be the actual derived type.
*
* This mix-in provides statistical tracking only, |T| is responsible for implementing
* lifetime management on its own.
*/
template <class T>
class TRefTracked
{
public:
#ifdef YT_ENABLE_REF_COUNTED_TRACKING
TRefTracked()
{
auto cookie = GetRefCountedTypeCookie<T>();
TRefCountedTrackerFacade::AllocateInstance(cookie);
}
TRefTracked(const TRefTracked&)
{
auto cookie = GetRefCountedTypeCookie<T>();
TRefCountedTrackerFacade::AllocateInstance(cookie);
}
TRefTracked(TRefTracked&&)
{
auto cookie = GetRefCountedTypeCookie<T>();
TRefCountedTrackerFacade::AllocateInstance(cookie);
}
~TRefTracked()
{
auto cookie = GetRefCountedTypeCookie<T>();
TRefCountedTrackerFacade::FreeInstance(cookie);
}
#endif
};
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
#define REF_TRACKED_INL_H_
#include "ref_tracked-inl.h"
#undef REF_TRACKED_INL_H_
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