version 1.1.2.1, 2005/10/08 02:01:46
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version 1.4.2.2, 2006/03/07 18:45:46
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//%2005//////////////////////////////////////////////////////////////////////// |
//%2006//////////////////////////////////////////////////////////////////////// |
// | // |
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development | // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development |
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. | // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. |
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// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. | // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. |
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; | // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
// EMC Corporation; VERITAS Software Corporation; The Open Group. | // EMC Corporation; VERITAS Software Corporation; The Open Group. |
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// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; |
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// EMC Corporation; Symantec Corporation; The Open Group. |
// | // |
// Permission is hereby granted, free of charge, to any person obtaining a copy | // Permission is hereby granted, free of charge, to any person obtaining a copy |
// of this software and associated documentation files (the "Software"), to | // of this software and associated documentation files (the "Software"), to |
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#ifndef _Pegasus_StringRep_h | #ifndef _Pegasus_StringRep_h |
#define _Pegasus_StringRep_h | #define _Pegasus_StringRep_h |
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#include <Pegasus/Common/Atomic.h> |
#include <Pegasus/Common/Config.h> |
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#include <Pegasus/Common/AtomicInt.h> |
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#include <new> |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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static StringRep* create(const char* data, size_t size); | static StringRep* create(const char* data, size_t size); |
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static StringRep* createASCII7(const char* data, size_t size); |
static StringRep* copyOnWrite(StringRep* rep); |
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static StringRep* copy_on_write(StringRep* rep); |
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static Uint32 length(const Uint16* str); | static Uint32 length(const Uint16* str); |
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static void unref(const StringRep* rep); | static void unref(const StringRep* rep); |
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static StringRep _empty_rep; |
static StringRep _emptyRep; |
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// Number of characters in this string, excluding the null terminator. |
size_t size; | 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. |
size_t cap; | size_t cap; |
Atomic refs; |
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// Number of string refering to this StringRep (1, 2, etc). |
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AtomicInt 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. |
Uint16 data[1]; | Uint16 data[1]; |
}; | }; |
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inline void StringRep::free(StringRep* rep) | inline void StringRep::free(StringRep* rep) |
{ | { |
Atomic_destroy(&rep->refs); |
rep->refs.~AtomicInt(); |
::operator delete(rep); | ::operator delete(rep); |
} | } |
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inline StringRep::StringRep() : size(0), cap(0) |
inline StringRep::StringRep() : size(0), cap(0), refs(2) |
{ | { |
// Only called on _empty_rep. |
// Only called on _emptyRep. We set the reference count to two to |
Atomic_create(&refs, 99); |
// 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). |
data[0] = 0; | data[0] = 0; |
} | } |
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inline StringRep::~StringRep() | inline StringRep::~StringRep() |
{ | { |
// Only called on _empty_rep. |
// Only called on _emptyRep. |
Atomic_destroy(&refs); |
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} | } |
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inline void StringRep::ref(const StringRep* rep) | inline void StringRep::ref(const StringRep* rep) |
{ | { |
if (rep != &StringRep::_empty_rep) |
if (rep != &StringRep::_emptyRep) |
Atomic_inc(&((StringRep*)rep)->refs); |
((StringRep*)rep)->refs++; |
} | } |
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inline void StringRep::unref(const StringRep* rep) | inline void StringRep::unref(const StringRep* rep) |
{ | { |
if (rep != &StringRep::_empty_rep && |
if (rep != &StringRep::_emptyRep && |
Atomic_dec_and_test(&((StringRep*)rep)->refs)) |
((StringRep*)rep)->refs.decAndTestIfZero()) |
StringRep::free((StringRep*)rep); | StringRep::free((StringRep*)rep); |
} | } |
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PEGASUS_COMMON_LINKAGE void String_throw_out_of_bounds(); |
PEGASUS_COMMON_LINKAGE void StringThrowOutOfBounds(); |
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PEGASUS_COMMON_LINKAGE void StringAppendCharAux(StringRep*& _rep); |
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#ifdef PEGASUS_STRING_NO_THROW |
PEGASUS_COMMON_LINKAGE Boolean StringEqualNoCase( |
# define _check_bounds(ARG1, ARG2) /* empty */ |
const String& s1, const String& s2); |
#else |
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inline void _check_bounds(size_t index, size_t size) |
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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#ifndef PEGASUS_STRING_NO_THROW |
if (index > size) | if (index > size) |
String_throw_out_of_bounds(); |
StringThrowOutOfBounds(); |
} |
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#endif | #endif |
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} |
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PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |
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