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Unified Diff: source/i18n/sharedbreakiterator.h

Issue 845603002: Update ICU to 54.1 step 1 (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/icu.git@master
Patch Set: remove unusued directories Created 5 years, 11 months ago
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Index: source/i18n/sharedbreakiterator.h
diff --git a/source/i18n/sharedbreakiterator.h b/source/i18n/sharedbreakiterator.h
new file mode 100644
index 0000000000000000000000000000000000000000..09ba4312a3995ada41e7e428a4e2d90f56c1b032
--- /dev/null
+++ b/source/i18n/sharedbreakiterator.h
@@ -0,0 +1,47 @@
+/*
+******************************************************************************
+* 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
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