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version 1.1.2.3, 2005/10/11 01:39:31
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version 1.4, 2005/11/29 22:10:24
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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); |
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| static StringRep* copyOnWrite(StringRep* rep); | static StringRep* copyOnWrite(StringRep* rep); |
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| static Uint32 length(const Uint16* str); | static Uint32 length(const Uint16* str); |
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| size_t cap; | size_t cap; |
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| // Number of string refering to this StringRep (1, 2, etc). | // Number of string refering to this StringRep (1, 2, etc). |
| Atomic refs; |
AtomicInt refs; |
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| // The first character in the string. Extra space is allocated off the | // The first character in the string. Extra space is allocated off the |
| // end of this structure for additional characters. | // end of this structure for additional characters. |
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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 _emptyRep. We set the reference count to two to | // Only called on _emptyRep. We set the reference count to two to |
| // keep a String from modifying it (if the reference count were one, | // keep a String from modifying it (if the reference count were one, |
| // a string would think it was the sole owner of the StringRep object). | // a string would think it was the sole owner of the StringRep object). |
| Atomic_create(&refs, 2); |
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| data[0] = 0; | data[0] = 0; |
| } | } |
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| inline StringRep::~StringRep() | inline StringRep::~StringRep() |
| { | { |
| // Only called on _emptyRep. | // Only called on _emptyRep. |
| Atomic_destroy(&refs); |
refs.~AtomicInt(); |
| } | } |
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| inline void StringRep::ref(const StringRep* rep) | inline void StringRep::ref(const StringRep* rep) |
| { | { |
| if (rep != &StringRep::_emptyRep) | 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::_emptyRep && | 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 StrinThrowOutOfBounds(); |
PEGASUS_COMMON_LINKAGE void StringThrowOutOfBounds(); |
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| PEGASUS_COMMON_LINKAGE void StringAppendCharAux(StringRep*& _rep); | PEGASUS_COMMON_LINKAGE void StringAppendCharAux(StringRep*& _rep); |
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| PEGASUS_COMMON_LINKAGE Uint32 StringFindAux( | PEGASUS_COMMON_LINKAGE Uint32 StringFindAux( |
| const StringRep* _rep, const Char16* s, Uint32 n); | const StringRep* _rep, const Char16* s, Uint32 n); |
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| #ifdef PEGASUS_STRING_NO_THROW |
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| # define _checkBounds(ARG1, ARG2) /* empty */ |
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| #else |
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| inline void _checkBounds(size_t index, size_t size) | inline void _checkBounds(size_t index, size_t size) |
| { | { |
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#ifndef PEGASUS_STRING_NO_THROW |
| if (index > size) | if (index > size) |
| StrinThrowOutOfBounds(); |
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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StringRep.h
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