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