// © 2016 and later: Unicode, Inc. and others.

// License & terms of use: http://www.unicode.org/copyright.html

/*

******************************************************************************

* Copyright (C) 2014, International Business Machines

* Corporation and others.  All Rights Reserved.

******************************************************************************

* sharedbreakiterator.h

*/

#ifndef __SHARED_BREAKITERATOR_H__

#define __SHARED_BREAKITERATOR_H__

#include "unicode/utypes.h"

#include "sharedobject.h"

#if !UCONFIG_NO_BREAK_ITERATION

U_NAMESPACE_BEGIN

class BreakIterator;

// SharedBreakIterator encapsulates a shared BreakIterator. Because

// BreakIterator has mutable semantics, clients must ensure that all uses

// of a particular shared BreakIterator is protected by the same mutex

// ensuring that only one thread at a time gets access to that shared

// BreakIterator. Clients can accomplish this by creating a mutex for all

// uses of break iterator within a particular class. Then objects of that

// class may then freely share break iterators among themselves. However,

// these shared break iterators must never be exposed outside of that class.

class U_I18N_API SharedBreakIterator : public SharedObject {

public:

    SharedBreakIterator(BreakIterator *biToAdopt);

    virtual ~SharedBreakIterator();

    BreakIterator *get() const { return ptr; }

    BreakIterator *operator->() const { return ptr; }

    BreakIterator &operator*() const { return *ptr; }

private:

    BreakIterator *ptr;

    SharedBreakIterator(const SharedBreakIterator &);

    SharedBreakIterator &operator=(const SharedBreakIterator &);

};

U_NAMESPACE_END

#endif

#endif