1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3/*
4******************************************************************************
5* Copyright (C) 2014, International Business Machines
6* Corporation and others. All Rights Reserved.
7******************************************************************************
8* sharedbreakiterator.h
9*/
10
11#ifndef __SHARED_BREAKITERATOR_H__
12#define __SHARED_BREAKITERATOR_H__
13
14#include "unicode/utypes.h"
15#include "sharedobject.h"
16
17#if !UCONFIG_NO_BREAK_ITERATION
18
19U_NAMESPACE_BEGIN
20
21class BreakIterator;
22
23// SharedBreakIterator encapsulates a shared BreakIterator. Because
24// BreakIterator has mutable semantics, clients must ensure that all uses
25// of a particular shared BreakIterator is protected by the same mutex
26// ensuring that only one thread at a time gets access to that shared
27// BreakIterator. Clients can accomplish this by creating a mutex for all
28// uses of break iterator within a particular class. Then objects of that
29// class may then freely share break iterators among themselves. However,
30// these shared break iterators must never be exposed outside of that class.
31class U_I18N_API SharedBreakIterator : public SharedObject {
32public:
33 SharedBreakIterator(BreakIterator *biToAdopt);
34 virtual ~SharedBreakIterator();
35
36 BreakIterator *get() const { return ptr; }
37 BreakIterator *operator->() const { return ptr; }
38 BreakIterator &operator*() const { return *ptr; }
39private:
40 BreakIterator *ptr;
41 SharedBreakIterator(const SharedBreakIterator &);
42 SharedBreakIterator &operator=(const SharedBreakIterator &);
43};
44
45U_NAMESPACE_END
46
47#endif
48
49#endif
50