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Diff for /pegasus/src/Pegasus/Common/Buffer.h between version 1.1 and 1.1.2.1

version 1.1, 2005/09/29 16:13:44 version 1.1.2.1, 2005/09/29 16:13:44
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   //%2005////////////////////////////////////////////////////////////////////////
   //
   // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
   // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
   // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
   // IBM Corp.; EMC Corporation, The Open Group.
   // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
   // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
   // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
   // EMC Corporation; VERITAS Software Corporation; The Open Group.
   //
   // Permission is hereby granted, free of charge, to any person obtaining a copy
   // of this software and associated documentation files (the "Software"), to
   // deal in the Software without restriction, including without limitation the
   // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   // sell copies of the Software, and to permit persons to whom the Software is
   // furnished to do so, subject to the following conditions:
   //
   // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
   // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
   // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
   // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
   // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   //
   //==============================================================================
   //
   // Author: Michael E. Brasher
   //
   //%/////////////////////////////////////////////////////////////////////////////
   
   #ifndef Pegasus_Buffer_h
   #define Pegasus_Buffer_h
   
   #include <Pegasus/Common/Config.h>
   #include <Pegasus/Common/Linkage.h>
   
   PEGASUS_NAMESPACE_BEGIN
   
   struct BufferRep
   {
       size_t size;
       size_t cap;
       char data[1];
   };
   
   class PEGASUS_COMMON_LINKAGE Buffer
   {
   public:
   
       Buffer();
   
       Buffer(const Buffer& x);
   
       Buffer(const char* data, size_t size);
   
       ~Buffer();
   
       Buffer& operator=(const Buffer& x);
   
       void swap(Buffer& x);
   
       size_t size() const;
   
       size_t capacity() const;
   
       const char* getData() const;
   
       char get(size_t i) const;
   
       void set(size_t i, char x);
   
       const char& operator[](size_t i) const;
   
       void reserveCapacity(size_t cap);
   
       void grow(size_t size, char x = '\0');
   
       void append(char x);
   
       void append(const char* data, size_t size);
   
       void append(char c1, char c2, char c3, char c4);
   
       void append(
           char c1, char c2, char c3, char c4, char c5, char c6, char c7, char c8);
   
       void insert(size_t pos, const char* data, size_t size);
   
       void remove(size_t pos, size_t size);
   
       void remove(size_t pos);
   
       void clear();
   
   private:
   
       void _reserve_aux(size_t cap);
   
       void _append_char_aux();
   
       BufferRep* _rep;
       static BufferRep _empty_rep;
   };
   
   inline Buffer::Buffer() : _rep(&_empty_rep)
   {
   }
   
   inline Buffer::~Buffer()
   {
       if (_rep != &_empty_rep)
           free(_rep);
   }
   
   inline void Buffer::swap(Buffer& x)
   {
       BufferRep* tmp = _rep;
       _rep = x._rep;
       x._rep = tmp;
   }
   
   inline size_t Buffer::size() const
   {
       return _rep->size;
   }
   
   inline size_t Buffer::capacity() const
   {
       return _rep->cap;
   }
   
   inline const char* Buffer::getData() const
   {
       return _rep->data;
   }
   
   inline char Buffer::get(size_t i) const
   {
       return _rep->data[i];
   }
   
   inline void Buffer::set(size_t i, char x)
   {
       _rep->data[i] = x;
   }
   
   inline const char& Buffer::operator[](size_t i) const
   {
       return _rep->data[i];
   }
   
   inline void Buffer::reserveCapacity(size_t cap)
   {
       if (cap > _rep->cap)
           _reserve_aux(cap);
   }
   
   inline void Buffer::grow(size_t size, char x)
   {
       size_t cap = _rep->size + size;
   
       if (cap > _rep->cap)
           _reserve_aux(cap);
   
       memset(_rep->data + _rep->size, x, size);
       _rep->size += size;
   }
   
   inline void Buffer::append(char x)
   {
       if (_rep->size == _rep->cap)
           _append_char_aux();
   
       _rep->data[_rep->size++] = x;
   }
   
   inline void Buffer::append(const char* data, size_t size)
   {
       size_t cap = _rep->size + size;
   
       if (cap > _rep->cap)
           _reserve_aux(cap);
   
       memcpy(_rep->data + _rep->size, data, size);
       _rep->size += size;
   }
   
   inline void Buffer::clear()
   {
       _rep->size = 0;
   }
   
   inline void Buffer::remove(size_t pos)
   {
       remove(pos, 1);
   }
   
   inline void Buffer::append(char c1, char c2, char c3, char c4)
   {
       size_t cap = _rep->size + 4;
   
       if (cap > _rep->cap)
           _reserve_aux(cap);
   
       char* p = _rep->data + _rep->size;
       p[0] = c1;
       p[1] = c2;
       p[2] = c3;
       p[3] = c4;
       _rep->size += 4;
   }
   
   inline void Buffer::append(
       char c1, char c2, char c3, char c4, char c5, char c6, char c7, char c8)
   {
       size_t cap = _rep->size + 8;
   
       if (cap > _rep->cap)
           _reserve_aux(cap);
   
       char* p = _rep->data + _rep->size;
       p[0] = c1;
       p[1] = c2;
       p[2] = c3;
       p[3] = c4;
       p[4] = c5;
       p[5] = c6;
       p[6] = c7;
       p[7] = c8;
       _rep->size += 8;
   }
   
   inline bool operator==(const Buffer& x, const Buffer& y)
   {
       return memcmp(x.getData(), y.getData(), x.size()) == 0;
   }
   
   PEGASUS_NAMESPACE_END
   
   #endif /* Pegasus_Buffer_h */

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