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version 1.1, 2005/10/08 02:01:46
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version 1.1.2.6, 2005/10/11 23:47:23
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//%2005//////////////////////////////////////////////////////////////////////// |
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// |
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// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development |
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// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. |
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// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation, The Open Group. |
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// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; |
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// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a copy |
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// of this software and associated documentation files (the "Software"), to |
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// deal in the Software without restriction, including without limitation the |
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
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// sell copies of the Software, and to permit persons to whom the Software is |
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// furnished to do so, subject to the following conditions: |
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// |
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// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN |
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// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED |
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// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT |
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// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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// |
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//============================================================================== |
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// |
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//%///////////////////////////////////////////////////////////////////////////// |
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#ifndef _Pegasus_StringRep_h |
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#define _Pegasus_StringRep_h |
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#include <Pegasus/Common/AtomicInt.h> |
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#include <new> |
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PEGASUS_NAMESPACE_BEGIN |
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struct StringRep |
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{ |
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StringRep(); |
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~StringRep(); |
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static StringRep* alloc(size_t cap); |
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static void free(StringRep* rep); |
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static StringRep* create(const Uint16* data, size_t size); |
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static StringRep* create(const char* data, size_t size); |
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static StringRep* createASCII7(const char* data, size_t size); |
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static StringRep* copyOnWrite(StringRep* rep); |
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static Uint32 length(const Uint16* str); |
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static void ref(const StringRep* rep); |
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static void unref(const StringRep* rep); |
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static StringRep _emptyRep; |
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// Number of characters in this string, excluding the null terminator. |
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size_t size; |
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// Number of characters this representation has room for. This is |
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// greater or equal to size. |
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size_t cap; |
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// Number of string refering to this StringRep (1, 2, etc). |
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NewAtomicInt refs; |
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// The first character in the string. Extra space is allocated off the |
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// end of this structure for additional characters. |
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Uint16 data[1]; |
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}; |
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inline void StringRep::free(StringRep* rep) |
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{ |
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rep->refs.~NewAtomicInt(); |
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::operator delete(rep); |
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} |
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inline StringRep::StringRep() : size(0), cap(0) |
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{ |
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// Only called on _emptyRep. We set the reference count to two to |
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// keep a String from modifying it (if the reference count were one, |
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// a string would think it was the sole owner of the StringRep object). |
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new(&refs) NewAtomicInt(); |
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data[0] = 0; |
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} |
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inline StringRep::~StringRep() |
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{ |
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// Only called on _emptyRep. |
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refs.~NewAtomicInt(); |
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} |
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inline void StringRep::ref(const StringRep* rep) |
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{ |
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if (rep != &StringRep::_emptyRep) |
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((StringRep*)rep)->refs.inc(); |
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} |
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inline void StringRep::unref(const StringRep* rep) |
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{ |
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if (rep != &StringRep::_emptyRep && ((StringRep*)rep)->refs.dec_and_test()) |
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StringRep::free((StringRep*)rep); |
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} |
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PEGASUS_COMMON_LINKAGE void StringThrowOutOfBounds(); |
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PEGASUS_COMMON_LINKAGE void StringAppendCharAux(StringRep*& _rep); |
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PEGASUS_COMMON_LINKAGE Boolean StringEqualNoCase( |
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const String& s1, const String& s2); |
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PEGASUS_COMMON_LINKAGE Uint32 StringFindAux( |
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const StringRep* _rep, const Char16* s, Uint32 n); |
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inline void _checkBounds(size_t index, size_t size) |
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{ |
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#ifndef PEGASUS_STRING_NO_THROW |
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if (index > size) |
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StringThrowOutOfBounds(); |
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#endif |
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} |
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PEGASUS_NAMESPACE_END |
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#endif /* _Pegasus_StringRep_h */ |
Return to
StringRep.h
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