godot/thirdparty/icu4c/common/sharedobject.cpp

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
* Copyright (C) 2015, International Business Machines
* Corporation and others.  All Rights Reserved.
******************************************************************************
* sharedobject.cpp
*/
#include "sharedobject.h"
#include "mutex.h"
#include "uassert.h"
#include "umutex.h"
#include "unifiedcache.h"

U_NAMESPACE_BEGIN

SharedObject::~SharedObject() { … }

UnifiedCacheBase::~UnifiedCacheBase() { … }

void
SharedObject::addRef() const { … }

// removeRef Decrement the reference count and delete if it is zero.
//           Note that SharedObjects with a non-null cachePtr are owned by the
//           unified cache, and the cache will be responsible for the actual deletion.
//           The deletion could be as soon as immediately following the
//           update to the reference count, if another thread is running
//           a cache eviction cycle concurrently.
//           NO ACCESS TO *this PERMITTED AFTER REFERENCE COUNT == 0 for cached objects.
//           THE OBJECT MAY ALREADY BE GONE.
void
SharedObject::removeRef() const { … }


int32_t
SharedObject::getRefCount() const { … }

void
SharedObject::deleteIfZeroRefCount() const { … }

U_NAMESPACE_END