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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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// Serialization/unserialization buffer
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//=============================================================================//
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#ifndef UTLBUFFER_H
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#define UTLBUFFER_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "tier1/utlmemory.h"
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#include "tier1/byteswap.h"
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#include <stdarg.h>
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//-----------------------------------------------------------------------------
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// Forward declarations
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//-----------------------------------------------------------------------------
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struct characterset_t;
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//-----------------------------------------------------------------------------
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// Description of character conversions for string output
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// Here's an example of how to use the macros to define a character conversion
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// BEGIN_CHAR_CONVERSION( CStringConversion, '\\' )
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// { '\n', "n" },
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// { '\t', "t" }
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// END_CHAR_CONVERSION( CStringConversion, '\\' )
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//-----------------------------------------------------------------------------
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class CUtlCharConversion
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{
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public:
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struct ConversionArray_t
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{
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char m_nActualChar;
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const char *m_pReplacementString;
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};
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CUtlCharConversion( char nEscapeChar, const char *pDelimiter, int nCount, ConversionArray_t *pArray );
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char GetEscapeChar() const;
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const char *GetDelimiter() const;
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int GetDelimiterLength() const;
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const char *GetConversionString( char c ) const;
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int GetConversionLength( char c ) const;
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int MaxConversionLength() const;
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// Finds a conversion for the passed-in string, returns length
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virtual char FindConversion( const char *pString, int *pLength );
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protected:
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struct ConversionInfo_t
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{
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int m_nLength;
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const char *m_pReplacementString;
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};
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char m_nEscapeChar;
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const char *m_pDelimiter;
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int m_nDelimiterLength;
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int m_nCount;
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int m_nMaxConversionLength;
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char m_pList[256];
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ConversionInfo_t m_pReplacements[256];
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};
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#define BEGIN_CHAR_CONVERSION( _name, _delimiter, _escapeChar ) \
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static CUtlCharConversion::ConversionArray_t s_pConversionArray ## _name[] = {
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#define END_CHAR_CONVERSION( _name, _delimiter, _escapeChar ) \
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}; \
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CUtlCharConversion _name( _escapeChar, _delimiter, sizeof( s_pConversionArray ## _name ) / sizeof( CUtlCharConversion::ConversionArray_t ), s_pConversionArray ## _name );
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#define BEGIN_CUSTOM_CHAR_CONVERSION( _className, _name, _delimiter, _escapeChar ) \
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static CUtlCharConversion::ConversionArray_t s_pConversionArray ## _name[] = {
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#define END_CUSTOM_CHAR_CONVERSION( _className, _name, _delimiter, _escapeChar ) \
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}; \
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_className _name( _escapeChar, _delimiter, sizeof( s_pConversionArray ## _name ) / sizeof( CUtlCharConversion::ConversionArray_t ), s_pConversionArray ## _name );
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//-----------------------------------------------------------------------------
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// Character conversions for C strings
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//-----------------------------------------------------------------------------
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CUtlCharConversion *GetCStringCharConversion();
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//-----------------------------------------------------------------------------
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// Character conversions for quoted strings, with no escape sequences
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//-----------------------------------------------------------------------------
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CUtlCharConversion *GetNoEscCharConversion();
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//-----------------------------------------------------------------------------
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// Macro to set overflow functions easily
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//-----------------------------------------------------------------------------
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#define SetUtlBufferOverflowFuncs( _get, _put ) \
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SetOverflowFuncs( static_cast <UtlBufferOverflowFunc_t>( _get ), static_cast <UtlBufferOverflowFunc_t>( _put ) )
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//-----------------------------------------------------------------------------
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// Command parsing..
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//-----------------------------------------------------------------------------
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class CUtlBuffer
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{
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public:
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enum SeekType_t
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{
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SEEK_HEAD = 0,
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SEEK_CURRENT,
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SEEK_TAIL
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};
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// flags
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enum BufferFlags_t
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{
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TEXT_BUFFER = 0x1, // Describes how get + put work (as strings, or binary)
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EXTERNAL_GROWABLE = 0x2, // This is used w/ external buffers and causes the utlbuf to switch to reallocatable memory if an overflow happens when Putting.
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CONTAINS_CRLF = 0x4, // For text buffers only, does this contain \n or \n\r?
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READ_ONLY = 0x8, // For external buffers; prevents null termination from happening.
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AUTO_TABS_DISABLED = 0x10, // Used to disable/enable push/pop tabs
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};
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// Overflow functions when a get or put overflows
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typedef bool (CUtlBuffer::*UtlBufferOverflowFunc_t)( int nSize );
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// Constructors for growable + external buffers for serialization/unserialization
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CUtlBuffer( int growSize = 0, int initSize = 0, int nFlags = 0 );
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CUtlBuffer( const void* pBuffer, int size, int nFlags = 0 );
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// This one isn't actually defined so that we catch contructors that are trying to pass a bool in as the third param.
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CUtlBuffer( const void *pBuffer, int size, bool crap );
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unsigned char GetFlags() const;
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// NOTE: This will assert if you attempt to recast it in a way that
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// is not compatible. The only valid conversion is binary-> text w/CRLF
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void SetBufferType( bool bIsText, bool bContainsCRLF );
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// Makes sure we've got at least this much memory
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void EnsureCapacity( int num );
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// Attaches the buffer to external memory....
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void SetExternalBuffer( void* pMemory, int nSize, int nInitialPut, int nFlags = 0 );
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bool IsExternallyAllocated() const;
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// Takes ownership of the passed memory, including freeing it when this buffer is destroyed.
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void AssumeMemory( void *pMemory, int nSize, int nInitialPut, int nFlags = 0 );
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// copies data from another buffer
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void CopyBuffer( const CUtlBuffer &buffer );
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void CopyBuffer( const void *pubData, int cubData );
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void Swap( CUtlBuffer &buf );
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void Swap( CUtlMemory<uint8> &mem );
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FORCEINLINE void ActivateByteSwappingIfBigEndian( void )
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{
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if ( IsX360() )
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ActivateByteSwapping( true );
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}
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// Controls endian-ness of binary utlbufs - default matches the current platform
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void ActivateByteSwapping( bool bActivate );
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void SetBigEndian( bool bigEndian );
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bool IsBigEndian( void );
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// Resets the buffer; but doesn't free memory
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void Clear();
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// Clears out the buffer; frees memory
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void Purge();
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// Read stuff out.
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// Binary mode: it'll just read the bits directly in, and characters will be
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// read for strings until a null character is reached.
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// Text mode: it'll parse the file, turning text #s into real numbers.
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// GetString will read a string until a space is reached
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char GetChar( );
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unsigned char GetUnsignedChar( );
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short GetShort( );
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unsigned short GetUnsignedShort( );
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int GetInt( );
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int64 GetInt64( );
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int GetIntHex( );
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unsigned int GetUnsignedInt( );
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float GetFloat( );
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double GetDouble( );
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template <size_t maxLenInChars> void GetString( char( &pString )[maxLenInChars] )
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{
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GetStringInternal( pString, maxLenInChars );
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}
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void GetStringManualCharCount( char *pString, size_t maxLenInChars )
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{
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GetStringInternal( pString, maxLenInChars );
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}
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void Get( void* pMem, int size );
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void GetLine( char* pLine, int nMaxChars = 0 );
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// Used for getting objects that have a byteswap datadesc defined
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template <typename T> void GetObjects( T *dest, int count = 1 );
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// This will get at least 1 byte and up to nSize bytes.
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// It will return the number of bytes actually read.
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int GetUpTo( void *pMem, int nSize );
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// This version of GetString converts \" to \\ and " to \, etc.
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// It also reads a " at the beginning and end of the string
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void GetDelimitedString( CUtlCharConversion *pConv, char *pString, int nMaxChars = 0 );
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char GetDelimitedChar( CUtlCharConversion *pConv );
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// This will return the # of characters of the string about to be read out
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// NOTE: The count will *include* the terminating 0!!
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// In binary mode, it's the number of characters until the next 0
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// In text mode, it's the number of characters until the next space.
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int PeekStringLength();
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// This version of PeekStringLength converts \" to \\ and " to \, etc.
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// It also reads a " at the beginning and end of the string
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// NOTE: The count will *include* the terminating 0!!
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// In binary mode, it's the number of characters until the next 0
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// In text mode, it's the number of characters between "s (checking for \")
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// Specifying false for bActualSize will return the pre-translated number of characters
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// including the delimiters and the escape characters. So, \n counts as 2 characters when bActualSize == false
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// and only 1 character when bActualSize == true
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int PeekDelimitedStringLength( CUtlCharConversion *pConv, bool bActualSize = true );
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// Just like scanf, but doesn't work in binary mode
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int Scanf( SCANF_FORMAT_STRING const char* pFmt, ... );
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int VaScanf( const char* pFmt, va_list list );
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// Eats white space, advances Get index
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void EatWhiteSpace();
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// Eats C++ style comments
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bool EatCPPComment();
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// (For text buffers only)
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// Parse a token from the buffer:
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// Grab all text that lies between a starting delimiter + ending delimiter
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// (skipping whitespace that leads + trails both delimiters).
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// If successful, the get index is advanced and the function returns true,
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// otherwise the index is not advanced and the function returns false.
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bool ParseToken( const char *pStartingDelim, const char *pEndingDelim, char* pString, int nMaxLen );
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// Advance the get index until after the particular string is found
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// Do not eat whitespace before starting. Return false if it failed
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// String test is case-insensitive.
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bool GetToken( const char *pToken );
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// Parses the next token, given a set of character breaks to stop at
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// Returns the length of the token parsed in bytes (-1 if none parsed)
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int ParseToken( characterset_t *pBreaks, char *pTokenBuf, int nMaxLen, bool bParseComments = true );
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// Write stuff in
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// Binary mode: it'll just write the bits directly in, and strings will be
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// written with a null terminating character
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// Text mode: it'll convert the numbers to text versions
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// PutString will not write a terminating character
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void PutChar( char c );
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void PutUnsignedChar( unsigned char uc );
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void PutUint64( uint64 ub );
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void PutInt16( int16 s16 );
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void PutShort( short s );
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void PutUnsignedShort( unsigned short us );
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void PutInt( int i );
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void PutInt64( int64 i );
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void PutUnsignedInt( unsigned int u );
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void PutFloat( float f );
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void PutDouble( double d );
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void PutString( const char* pString );
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void Put( const void* pMem, int size );
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// Used for putting objects that have a byteswap datadesc defined
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template <typename T> void PutObjects( T *src, int count = 1 );
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// This version of PutString converts \ to \\ and " to \", etc.
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// It also places " at the beginning and end of the string
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void PutDelimitedString( CUtlCharConversion *pConv, const char *pString );
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void PutDelimitedChar( CUtlCharConversion *pConv, char c );
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// Just like printf, writes a terminating zero in binary mode
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void Printf( PRINTF_FORMAT_STRING const char* pFmt, ... ) FMTFUNCTION( 2, 3 );
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void VaPrintf( const char* pFmt, va_list list );
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// What am I writing (put)/reading (get)?
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void* PeekPut( int offset = 0 );
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const void* PeekGet( int offset = 0 ) const;
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const void* PeekGet( int nMaxSize, int nOffset );
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// Where am I writing (put)/reading (get)?
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int TellPut( ) const;
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int TellGet( ) const;
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// What's the most I've ever written?
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int TellMaxPut( ) const;
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// How many bytes remain to be read?
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// NOTE: This is not accurate for streaming text files; it overshoots
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int GetBytesRemaining() const;
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// Change where I'm writing (put)/reading (get)
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void SeekPut( SeekType_t type, int offset );
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void SeekGet( SeekType_t type, int offset );
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// Buffer base
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const void* Base() const;
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void* Base();
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// Returns the base as a const char*, only valid in text mode.
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const char *String() const;
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// memory allocation size, does *not* reflect size written or read,
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// use TellPut or TellGet for that
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int Size() const;
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// Am I a text buffer?
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bool IsText() const;
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// Can I grow if I'm externally allocated?
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bool IsGrowable() const;
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// Am I valid? (overflow or underflow error), Once invalid it stays invalid
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bool IsValid() const;
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// Do I contain carriage return/linefeeds?
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bool ContainsCRLF() const;
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// Am I read-only
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bool IsReadOnly() const;
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// Converts a buffer from a CRLF buffer to a CR buffer (and back)
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// Returns false if no conversion was necessary (and outBuf is left untouched)
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// If the conversion occurs, outBuf will be cleared.
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bool ConvertCRLF( CUtlBuffer &outBuf );
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// Push/pop pretty-printing tabs
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void PushTab();
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void PopTab();
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// Temporarily disables pretty print
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void EnableTabs( bool bEnable );
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protected:
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// error flags
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enum
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{
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PUT_OVERFLOW = 0x1,
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GET_OVERFLOW = 0x2,
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MAX_ERROR_FLAG = GET_OVERFLOW,
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};
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void SetOverflowFuncs( UtlBufferOverflowFunc_t getFunc, UtlBufferOverflowFunc_t putFunc );
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bool OnPutOverflow( int nSize );
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bool OnGetOverflow( int nSize );
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protected:
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// Checks if a get/put is ok
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bool CheckPut( int size );
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bool CheckGet( int size );
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void AddNullTermination( );
|
|
|
|
|
|
|
|
// Methods to help with pretty-printing
|
|
|
|
bool WasLastCharacterCR();
|
|
|
|
void PutTabs();
|
|
|
|
|
|
|
|
// Help with delimited stuff
|
|
|
|
char GetDelimitedCharInternal( CUtlCharConversion *pConv );
|
|
|
|
void PutDelimitedCharInternal( CUtlCharConversion *pConv, char c );
|
|
|
|
|
|
|
|
// Default overflow funcs
|
|
|
|
bool PutOverflow( int nSize );
|
|
|
|
bool GetOverflow( int nSize );
|
|
|
|
|
|
|
|
// Does the next bytes of the buffer match a pattern?
|
|
|
|
bool PeekStringMatch( int nOffset, const char *pString, int nLen );
|
|
|
|
|
|
|
|
// Peek size of line to come, check memory bound
|
|
|
|
int PeekLineLength();
|
|
|
|
|
|
|
|
// How much whitespace should I skip?
|
|
|
|
int PeekWhiteSpace( int nOffset );
|
|
|
|
|
|
|
|
// Checks if a peek get is ok
|
|
|
|
bool CheckPeekGet( int nOffset, int nSize );
|
|
|
|
|
|
|
|
// Call this to peek arbitrarily long into memory. It doesn't fail unless
|
|
|
|
// it can't read *anything* new
|
|
|
|
bool CheckArbitraryPeekGet( int nOffset, int &nIncrement );
|
|
|
|
void GetStringInternal( char *pString, size_t maxLenInChars );
|
|
|
|
|
|
|
|
template <typename T> void GetType( T& dest, const char *pszFmt );
|
|
|
|
template <typename T> void GetTypeBin( T& dest );
|
|
|
|
template <typename T> void GetObject( T *src );
|
|
|
|
|
|
|
|
template <typename T> void PutType( T src, const char *pszFmt );
|
|
|
|
template <typename T> void PutTypeBin( T src );
|
|
|
|
template <typename T> void PutObject( T *src );
|
|
|
|
|
|
|
|
CUtlMemory<unsigned char> m_Memory;
|
|
|
|
int m_Get;
|
|
|
|
int m_Put;
|
|
|
|
|
|
|
|
unsigned char m_Error;
|
|
|
|
unsigned char m_Flags;
|
|
|
|
unsigned char m_Reserved;
|
|
|
|
#if defined( _X360 )
|
|
|
|
unsigned char pad;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
int m_nTab;
|
|
|
|
int m_nMaxPut;
|
|
|
|
int m_nOffset;
|
|
|
|
|
|
|
|
UtlBufferOverflowFunc_t m_GetOverflowFunc;
|
|
|
|
UtlBufferOverflowFunc_t m_PutOverflowFunc;
|
|
|
|
|
|
|
|
CByteswap m_Byteswap;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
// Stream style output operators for CUtlBuffer
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, char v )
|
|
|
|
{
|
|
|
|
b.PutChar( v );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, unsigned char v )
|
|
|
|
{
|
|
|
|
b.PutUnsignedChar( v );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, short v )
|
|
|
|
{
|
|
|
|
b.PutShort( v );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, unsigned short v )
|
|
|
|
{
|
|
|
|
b.PutUnsignedShort( v );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, int v )
|
|
|
|
{
|
|
|
|
b.PutInt( v );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, unsigned int v )
|
|
|
|
{
|
|
|
|
b.PutUnsignedInt( v );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, float v )
|
|
|
|
{
|
|
|
|
b.PutFloat( v );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, double v )
|
|
|
|
{
|
|
|
|
b.PutDouble( v );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, const char *pv )
|
|
|
|
{
|
|
|
|
b.PutString( pv );
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, const Vector &v )
|
|
|
|
{
|
|
|
|
b << v.x << " " << v.y << " " << v.z;
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline CUtlBuffer &operator<<( CUtlBuffer &b, const Vector2D &v )
|
|
|
|
{
|
|
|
|
b << v.x << " " << v.y;
|
|
|
|
return b;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
class CUtlInplaceBuffer : public CUtlBuffer
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
CUtlInplaceBuffer( int growSize = 0, int initSize = 0, int nFlags = 0 );
|
|
|
|
|
|
|
|
//
|
|
|
|
// Routines returning buffer-inplace-pointers
|
|
|
|
//
|
|
|
|
public:
|
|
|
|
//
|
|
|
|
// Upon success, determines the line length, fills out the pointer to the
|
|
|
|
// beginning of the line and the line length, advances the "get" pointer
|
|
|
|
// offset by the line length and returns "true".
|
|
|
|
//
|
|
|
|
// If end of file is reached or upon error returns "false".
|
|
|
|
//
|
|
|
|
// Note: the returned length of the line is at least one character because the
|
|
|
|
// trailing newline characters are also included as part of the line.
|
|
|
|
//
|
|
|
|
// Note: the pointer returned points into the local memory of this buffer, in
|
|
|
|
// case the buffer gets relocated or destroyed the pointer becomes invalid.
|
|
|
|
//
|
|
|
|
// e.g.: -------------
|
|
|
|
//
|
|
|
|
// char *pszLine;
|
|
|
|
// int nLineLen;
|
|
|
|
// while ( pUtlInplaceBuffer->InplaceGetLinePtr( &pszLine, &nLineLen ) )
|
|
|
|
// {
|
|
|
|
// ...
|
|
|
|
// }
|
|
|
|
//
|
|
|
|
// -------------
|
|
|
|
//
|
|
|
|
// @param ppszInBufferPtr on return points into this buffer at start of line
|
|
|
|
// @param pnLineLength on return holds num bytes accessible via (*ppszInBufferPtr)
|
|
|
|
//
|
|
|
|
// @returns true if line was successfully read
|
|
|
|
// false when EOF is reached or error occurs
|
|
|
|
//
|
|
|
|
bool InplaceGetLinePtr( /* out */ char **ppszInBufferPtr, /* out */ int *pnLineLength );
|
|
|
|
|
|
|
|
//
|
|
|
|
// Determines the line length, advances the "get" pointer offset by the line length,
|
|
|
|
// replaces the newline character with null-terminator and returns the initial pointer
|
|
|
|
// to now null-terminated line.
|
|
|
|
//
|
|
|
|
// If end of file is reached or upon error returns NULL.
|
|
|
|
//
|
|
|
|
// Note: the pointer returned points into the local memory of this buffer, in
|
|
|
|
// case the buffer gets relocated or destroyed the pointer becomes invalid.
|
|
|
|
//
|
|
|
|
// e.g.: -------------
|
|
|
|
//
|
|
|
|
// while ( char *pszLine = pUtlInplaceBuffer->InplaceGetLinePtr() )
|
|
|
|
// {
|
|
|
|
// ...
|
|
|
|
// }
|
|
|
|
//
|
|
|
|
// -------------
|
|
|
|
//
|
|
|
|
// @returns ptr-to-zero-terminated-line if line was successfully read and buffer modified
|
|
|
|
// NULL when EOF is reached or error occurs
|
|
|
|
//
|
|
|
|
char * InplaceGetLinePtr( void );
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Where am I reading?
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline int CUtlBuffer::TellGet( ) const
|
|
|
|
{
|
|
|
|
return m_Get;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// How many bytes remain to be read?
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline int CUtlBuffer::GetBytesRemaining() const
|
|
|
|
{
|
|
|
|
return m_nMaxPut - TellGet();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// What am I reading?
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline const void* CUtlBuffer::PeekGet( int offset ) const
|
|
|
|
{
|
|
|
|
return &m_Memory[ m_Get + offset - m_nOffset ];
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Unserialization
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
template <typename T>
|
|
|
|
inline void CUtlBuffer::GetObject( T *dest )
|
|
|
|
{
|
|
|
|
if ( CheckGet( sizeof(T) ) )
|
|
|
|
{
|
|
|
|
if ( !m_Byteswap.IsSwappingBytes() || ( sizeof( T ) == 1 ) )
|
|
|
|
{
|
|
|
|
*dest = *(T *)PeekGet();
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
m_Byteswap.SwapFieldsToTargetEndian<T>( dest, (T*)PeekGet() );
|
|
|
|
}
|
|
|
|
m_Get += sizeof(T);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
Q_memset( dest, 0, sizeof(T) );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template <typename T>
|
|
|
|
inline void CUtlBuffer::GetObjects( T *dest, int count )
|
|
|
|
{
|
|
|
|
for ( int i = 0; i < count; ++i, ++dest )
|
|
|
|
{
|
|
|
|
GetObject<T>( dest );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template <typename T>
|
|
|
|
inline void CUtlBuffer::GetTypeBin( T &dest )
|
|
|
|
{
|
|
|
|
if ( CheckGet( sizeof(T) ) )
|
|
|
|
{
|
|
|
|
if ( !m_Byteswap.IsSwappingBytes() || ( sizeof( T ) == 1 ) )
|
|
|
|
{
|
|
|
|
Q_memcpy(&dest, PeekGet(), sizeof(T) );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
m_Byteswap.SwapBufferToTargetEndian<T>( &dest, (T*)PeekGet() );
|
|
|
|
}
|
|
|
|
m_Get += sizeof(T);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
dest = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <>
|
|
|
|
inline void CUtlBuffer::GetTypeBin< float >( float &dest )
|
|
|
|
{
|
|
|
|
if ( CheckGet( sizeof( float ) ) )
|
|
|
|
{
|
|
|
|
uintptr_t pData = (uintptr_t)PeekGet();
|
|
|
|
if ( IsX360() && ( pData & 0x03 ) )
|
|
|
|
{
|
|
|
|
// handle unaligned read
|
|
|
|
((unsigned char*)&dest)[0] = ((unsigned char*)pData)[0];
|
|
|
|
((unsigned char*)&dest)[1] = ((unsigned char*)pData)[1];
|
|
|
|
((unsigned char*)&dest)[2] = ((unsigned char*)pData)[2];
|
|
|
|
((unsigned char*)&dest)[3] = ((unsigned char*)pData)[3];
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
// aligned read
|
|
|
|
Q_memcmp( &dest, pData, sizeof(float) );
|
|
|
|
}
|
|
|
|
if ( m_Byteswap.IsSwappingBytes() )
|
|
|
|
{
|
|
|
|
m_Byteswap.SwapBufferToTargetEndian< float >( &dest, &dest );
|
|
|
|
}
|
|
|
|
m_Get += sizeof( float );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
dest = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <typename T>
|
|
|
|
inline void CUtlBuffer::GetType( T &dest, const char *pszFmt )
|
|
|
|
{
|
|
|
|
if (!IsText())
|
|
|
|
{
|
|
|
|
GetTypeBin( dest );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
dest = 0;
|
|
|
|
Scanf( pszFmt, &dest );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
inline char CUtlBuffer::GetChar( )
|
|
|
|
{
|
|
|
|
char c;
|
|
|
|
GetType( c, "%c" );
|
|
|
|
return c;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline unsigned char CUtlBuffer::GetUnsignedChar( )
|
|
|
|
{
|
|
|
|
unsigned char c;
|
|
|
|
GetType( c, "%u" );
|
|
|
|
return c;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline short CUtlBuffer::GetShort( )
|
|
|
|
{
|
|
|
|
short s;
|
|
|
|
GetType( s, "%d" );
|
|
|
|
return s;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline unsigned short CUtlBuffer::GetUnsignedShort( )
|
|
|
|
{
|
|
|
|
unsigned short s;
|
|
|
|
GetType( s, "%u" );
|
|
|
|
return s;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline int CUtlBuffer::GetInt( )
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
GetType( i, "%d" );
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline int64 CUtlBuffer::GetInt64( )
|
|
|
|
{
|
|
|
|
int64 i;
|
|
|
|
GetType( i, "%lld" );
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline int CUtlBuffer::GetIntHex( )
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
GetType( i, "%x" );
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline unsigned int CUtlBuffer::GetUnsignedInt( )
|
|
|
|
{
|
|
|
|
unsigned int u;
|
|
|
|
GetType( u, "%u" );
|
|
|
|
return u;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline float CUtlBuffer::GetFloat( )
|
|
|
|
{
|
|
|
|
float f;
|
|
|
|
GetType( f, "%f" );
|
|
|
|
return f;
|
|
|
|
}
|
|
|
|
|
|
|
|
inline double CUtlBuffer::GetDouble( )
|
|
|
|
{
|
|
|
|
double d;
|
|
|
|
GetType( d, "%f" );
|
|
|
|
return d;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Where am I writing?
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline unsigned char CUtlBuffer::GetFlags() const
|
|
|
|
{
|
|
|
|
return m_Flags;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
//
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline bool CUtlBuffer::IsExternallyAllocated() const
|
|
|
|
{
|
|
|
|
return m_Memory.IsExternallyAllocated();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Where am I writing?
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline int CUtlBuffer::TellPut( ) const
|
|
|
|
{
|
|
|
|
return m_Put;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// What's the most I've ever written?
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//-----------------------------------------------------------------------------
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inline int CUtlBuffer::TellMaxPut( ) const
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|
{
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|
return m_nMaxPut;
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}
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//-----------------------------------------------------------------------------
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// What am I reading?
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//-----------------------------------------------------------------------------
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inline void* CUtlBuffer::PeekPut( int offset )
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|
{
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|
return &m_Memory[m_Put + offset - m_nOffset];
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}
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//-----------------------------------------------------------------------------
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// Various put methods
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//-----------------------------------------------------------------------------
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template <typename T>
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inline void CUtlBuffer::PutObject( T *src )
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{
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if ( CheckPut( sizeof(T) ) )
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{
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|
if ( !m_Byteswap.IsSwappingBytes() || ( sizeof( T ) == 1 ) )
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|
{
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Q_memcpy( PeekPut(), src, sizeof( T ) );
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}
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else
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|
{
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m_Byteswap.SwapFieldsToTargetEndian<T>( (T*)PeekPut(), src );
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}
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m_Put += sizeof(T);
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AddNullTermination();
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}
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}
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template <typename T>
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inline void CUtlBuffer::PutObjects( T *src, int count )
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|
{
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for ( int i = 0; i < count; ++i, ++src )
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{
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|
PutObject<T>( src );
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|
}
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}
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template <typename T>
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inline void CUtlBuffer::PutTypeBin( T src )
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|
{
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|
if ( CheckPut( sizeof(T) ) )
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|
{
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|
if ( !m_Byteswap.IsSwappingBytes() || ( sizeof( T ) == 1 ) )
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|
|
{
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|
Q_memcpy( PeekPut(), &src, sizeof( T ) );
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|
}
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|
else
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|
|
|
{
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|
m_Byteswap.SwapBufferToTargetEndian<T>( (T*)PeekPut(), &src );
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|
}
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m_Put += sizeof(T);
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|
AddNullTermination();
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|
}
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|
}
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|
template <typename T>
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|
inline void CUtlBuffer::PutType( T src, const char *pszFmt )
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|
{
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|
if (!IsText())
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|
{
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|
PutTypeBin( src );
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|
}
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|
else
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|
{
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|
Printf( pszFmt, src );
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|
}
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|
}
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|
//-----------------------------------------------------------------------------
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|
// Methods to help with pretty-printing
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|
//-----------------------------------------------------------------------------
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|
|
inline bool CUtlBuffer::WasLastCharacterCR()
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|
|
|
{
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|
|
if ( !IsText() || (TellPut() == 0) )
|
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|
|
return false;
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|
|
return ( *( const char * )PeekPut( -1 ) == '\n' );
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|
|
|
}
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|
|
inline void CUtlBuffer::PutTabs()
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|
|
|
{
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|
|
|
int nTabCount = ( m_Flags & AUTO_TABS_DISABLED ) ? 0 : m_nTab;
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|
|
for (int i = nTabCount; --i >= 0; )
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|
|
{
|
|
|
|
PutTypeBin<char>( '\t' );
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|
|
}
|
|
|
|
}
|
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|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Push/pop pretty-printing tabs
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline void CUtlBuffer::PushTab( )
|
|
|
|
{
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|
|
|
++m_nTab;
|
|
|
|
}
|
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|
|
|
|
|
inline void CUtlBuffer::PopTab()
|
|
|
|
{
|
|
|
|
if ( --m_nTab < 0 )
|
|
|
|
{
|
|
|
|
m_nTab = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Temporarily disables pretty print
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline void CUtlBuffer::EnableTabs( bool bEnable )
|
|
|
|
{
|
|
|
|
if ( bEnable )
|
|
|
|
{
|
|
|
|
m_Flags &= ~AUTO_TABS_DISABLED;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
m_Flags |= AUTO_TABS_DISABLED;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutChar( char c )
|
|
|
|
{
|
|
|
|
if ( WasLastCharacterCR() )
|
|
|
|
{
|
|
|
|
PutTabs();
|
|
|
|
}
|
|
|
|
|
|
|
|
PutTypeBin( c );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutUnsignedChar( unsigned char c )
|
|
|
|
{
|
|
|
|
PutType( c, "%u" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutUint64( uint64 ub )
|
|
|
|
{
|
|
|
|
PutType( ub, "%llu" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutInt16( int16 s16 )
|
|
|
|
{
|
|
|
|
PutType( s16, "%d" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutShort( short s )
|
|
|
|
{
|
|
|
|
PutType( s, "%d" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutUnsignedShort( unsigned short s )
|
|
|
|
{
|
|
|
|
PutType( s, "%u" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutInt( int i )
|
|
|
|
{
|
|
|
|
PutType( i, "%d" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutInt64( int64 i )
|
|
|
|
{
|
|
|
|
PutType( i, "%llu" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutUnsignedInt( unsigned int u )
|
|
|
|
{
|
|
|
|
PutType( u, "%u" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutFloat( float f )
|
|
|
|
{
|
|
|
|
PutType( f, "%f" );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::PutDouble( double d )
|
|
|
|
{
|
|
|
|
PutType( d, "%f" );
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Am I a text buffer?
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline bool CUtlBuffer::IsText() const
|
|
|
|
{
|
|
|
|
return (m_Flags & TEXT_BUFFER) != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Can I grow if I'm externally allocated?
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline bool CUtlBuffer::IsGrowable() const
|
|
|
|
{
|
|
|
|
return (m_Flags & EXTERNAL_GROWABLE) != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Am I valid? (overflow or underflow error), Once invalid it stays invalid
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline bool CUtlBuffer::IsValid() const
|
|
|
|
{
|
|
|
|
return m_Error == 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Do I contain carriage return/linefeeds?
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline bool CUtlBuffer::ContainsCRLF() const
|
|
|
|
{
|
|
|
|
return IsText() && ((m_Flags & CONTAINS_CRLF) != 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Am I read-only
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline bool CUtlBuffer::IsReadOnly() const
|
|
|
|
{
|
|
|
|
return (m_Flags & READ_ONLY) != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Buffer base and size
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline const void* CUtlBuffer::Base() const
|
|
|
|
{
|
|
|
|
return m_Memory.Base();
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void* CUtlBuffer::Base()
|
|
|
|
{
|
|
|
|
return m_Memory.Base();
|
|
|
|
}
|
|
|
|
|
|
|
|
// Returns the base as a const char*, only valid in text mode.
|
|
|
|
inline const char *CUtlBuffer::String() const
|
|
|
|
{
|
|
|
|
Assert( IsText() );
|
|
|
|
return reinterpret_cast<const char*>( m_Memory.Base() );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline int CUtlBuffer::Size() const
|
|
|
|
{
|
|
|
|
return m_Memory.NumAllocated();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Clears out the buffer; frees memory
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline void CUtlBuffer::Clear()
|
|
|
|
{
|
|
|
|
m_Get = 0;
|
|
|
|
m_Put = 0;
|
|
|
|
m_Error = 0;
|
|
|
|
m_nOffset = 0;
|
|
|
|
m_nMaxPut = -1;
|
|
|
|
AddNullTermination();
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::Purge()
|
|
|
|
{
|
|
|
|
m_Get = 0;
|
|
|
|
m_Put = 0;
|
|
|
|
m_nOffset = 0;
|
|
|
|
m_nMaxPut = 0;
|
|
|
|
m_Error = 0;
|
|
|
|
m_Memory.Purge();
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::CopyBuffer( const CUtlBuffer &buffer )
|
|
|
|
{
|
|
|
|
CopyBuffer( buffer.Base(), buffer.TellPut() );
|
|
|
|
}
|
|
|
|
|
|
|
|
inline void CUtlBuffer::CopyBuffer( const void *pubData, int cubData )
|
|
|
|
{
|
|
|
|
Clear();
|
|
|
|
if ( cubData )
|
|
|
|
{
|
|
|
|
Put( pubData, cubData );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif // UTLBUFFER_H
|
|
|
|
|