StdBuf Class Reference

#include <StdBuf.h>

Inheritance diagram for StdBuf:

Public Member Functions
	StdBuf ()=default
	StdBuf (StdBuf &Buf2, bool fCopy=false)
	StdBuf (const StdBuf &Buf2, bool fCopy=true)
	StdBuf (StdBuf &&Buf2) noexcept
	StdBuf (const void *pData, size_t iSize, bool fCopy=false)
	~StdBuf ()
bool	isNull () const
const void *	getData () const
void *	getMData ()
size_t	getSize () const
bool	isRef () const
const void *	getPtr (size_t i) const
void *	getMPtr (size_t i)
StdBuf	getPart (size_t iStart, size_t inSize) const
void	Ref (const void *pnData, size_t inSize)
void	Take (void *pnData, size_t inSize)
void *	GrabPointer ()
void	New (size_t inSize)
void	Write (const void *pnData, size_t inSize, size_t iAt=0)
void	Move (size_t iFrom, size_t inSize, size_t iTo=0)
int	Compare (const void *pCData, size_t iCSize, size_t iAt=0) const
void	Grow (size_t iGrow)
void	Shrink (size_t iShrink)
void	Clear ()
void	SetSize (size_t inSize)
void	Write (const StdBuf &Buf2, size_t iAt=0)
int	Compare (const StdBuf &Buf2, size_t iAt=0) const
void	Copy (size_t inSize)
void	Copy ()
void	Copy (const void *pnData, size_t inSize)
void	Copy (const StdBuf &Buf2)
StdBuf	Duplicate () const
void	Append (const void *pnData, size_t inSize)
void	Append (const StdBuf &Buf2)
void	Ref (const StdBuf &Buf2)
StdBuf	getRef () const
void	Take (StdBuf &Buf2)
void	Take (StdBuf &&Buf2)
bool	LoadFromFile (const char *szFile)
bool	SaveToFile (const char *szFile) const
bool	operator! () const
StdBuf	operator+= (const StdBuf &Buf2)
StdBuf	operator+ (const StdBuf &Buf2) const
bool	operator== (const StdBuf &Buf2) const
bool	operator!= (const StdBuf &Buf2) const
StdBuf &	operator= (StdBuf &&Buf2)
int	GetHash () const
void	CompileFunc (class StdCompiler *pComp, int iType=0)

Static Public Member Functions
static void	DeletePointer (void *data)

Protected Attributes
bool	fRef = true
union {
const void *	pData = nullptr
void *	pMData
};
unsigned int	iSize = 0

Detailed Description

Definition at line 29 of file StdBuf.h.

Constructor & Destructor Documentation

StdBuf() [1/5]

StdBuf::StdBuf ( )

default

Referenced by getPart(), and getRef().

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StdBuf() [2/5]

StdBuf::StdBuf ( StdBuf &  Buf2, bool  fCopy = false  )

inline

Definition at line 40 of file StdBuf.h.

            : pData(nullptr)
    {
        if (fCopy)
            Copy(Buf2);
        else if (!Buf2.isRef())
            Take(std::move(Buf2));
        else
            Ref(Buf2);
    }

References Copy(), isRef(), Ref(), and Take().

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StdBuf() [3/5]

StdBuf::StdBuf ( const StdBuf &  Buf2, bool  fCopy = true  )

inline

Definition at line 50 of file StdBuf.h.

            : pData(nullptr)
    {
        if (fCopy)
            Copy(Buf2);
        else
            Ref(Buf2);
    }

References Copy(), and Ref().

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StdBuf() [4/5]

StdBuf::StdBuf ( StdBuf &&  Buf2 )

inlinenoexcept

Definition at line 58 of file StdBuf.h.

            : pData(nullptr)
    {
        if (!Buf2.isRef())
            Take(std::move(Buf2));
        else
            Ref(Buf2);
    }

References Ref(), and Take().

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StdBuf() [5/5]

StdBuf::StdBuf ( const void *  pData, size_t  iSize, bool  fCopy = false  )

inline

Definition at line 68 of file StdBuf.h.

            : pData(pData), iSize(iSize)
    {
        if (fCopy) Copy();
    }

References Copy().

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~StdBuf()

StdBuf::~StdBuf ( )

inline

Definition at line 74 of file StdBuf.h.

    {
        Clear();
    }

References Clear().

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Member Function Documentation

Append() [1/2]

void StdBuf::Append ( const StdBuf &  Buf2 )

inline

Definition at line 260 of file StdBuf.h.

    {
        Append(Buf2.getData(), Buf2.getSize());
    }

References Append(), getData(), and getSize().

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Append() [2/2]

void StdBuf::Append ( const void *  pnData, size_t  inSize  )

inline

Definition at line 254 of file StdBuf.h.

    {
        Grow(inSize);
        Write(pnData, inSize, iSize - inSize);
    }

References Grow(), iSize, and Write().

Referenced by Append(), operator+(), operator+=(), C4Network2RefServer::PackPacket(), C4Playback::ReadBinary(), and CStdFile::SaveBuffer().

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Clear()

void StdBuf::Clear ( )

inline

Definition at line 190 of file StdBuf.h.

    {
        if (!fRef) free(pMData);
        pMData = nullptr; fRef = true; iSize = 0;
    }

References fRef, and iSize.

Referenced by C4ControlReInitScenario::C4ControlReInitScenario(), C4Playback::Clear(), StdStrBuf::Clear(), C4HTTPClient::Clear(), C4NetIOPacket::Clear(), C4Record::ClearStreamingBuf(), CStdVectorFont::CStdVectorFont(), C4Group::LoadEntry(), New(), C4Playback::ReadBinary(), Ref(), C4Network2::StopStreaming(), Take(), and ~StdBuf().

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Compare() [1/2]

int StdBuf::Compare ( const StdBuf &  Buf2, size_t  iAt = 0  ) const

inline

Definition at line 219 of file StdBuf.h.

    {
        return Compare(Buf2.getData(), Buf2.getSize(), iAt);
    }

References Compare(), getData(), and getSize().

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Compare() [2/2]

int StdBuf::Compare ( const void *  pCData, size_t  iCSize, size_t  iAt = 0  ) const

inline

Definition at line 165 of file StdBuf.h.

    {
        assert(iAt + iCSize <= getSize());
        return std::memcmp(getPtr(iAt), pCData, iCSize);
    }

References getPtr(), and getSize().

Referenced by Compare(), StdStrBuf::Compare(), C4NetIOUDP::DoLoopbackTest(), and operator==().

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CompileFunc()

void StdBuf::CompileFunc	(	class StdCompiler *	pComp,
		int	iType = 0
	)

Definition at line 114 of file StdBuf.cpp.

{
    // Size (guess it is a small value most of the time - if it's big, an extra byte won't hurt anyway)
    uint32_t tmp = iSize; pComp->Value(mkIntPackAdapt(tmp)); iSize = tmp;
    pComp->Separator(StdCompiler::SEP_PART2);
    // Read/write data
    if (pComp->isDeserializer())
    {
        New(iSize);
        pComp->Raw(getMData(), iSize, StdCompiler::RawCompileType(iType));
    }
    else
    {
        pComp->Raw(const_cast<void *>(getData()), iSize, StdCompiler::RawCompileType(iType));
    }
}

References getData(), getMData(), StdCompiler::isDeserializer(), iSize, mkIntPackAdapt(), New(), StdCompiler::Raw(), StdCompiler::SEP_PART2, StdCompiler::Separator(), and StdCompiler::Value().

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Copy() [1/4]

void StdBuf::Copy ( )

inline

Definition at line 233 of file StdBuf.h.

    {
        Copy(iSize);
    }

References iSize.

Referenced by StdStrBuf::Copy(), Copy(), GrabPointer(), Grow(), StdCopyBuf::operator=(), Shrink(), and StdBuf().

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Copy() [2/4]

void StdBuf::Copy ( const StdBuf &  Buf2 )

inline

Definition at line 243 of file StdBuf.h.

    {
        Copy(Buf2.getData(), Buf2.getSize());
    }

References Copy(), getData(), and getSize().

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Copy() [3/4]

void StdBuf::Copy ( const void *  pnData, size_t  inSize  )

inline

Definition at line 238 of file StdBuf.h.

    {
        Ref(pnData, inSize); Copy();
    }

References Copy(), and Ref().

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Copy() [4/4]

void StdBuf::Copy ( size_t  inSize )

inline

Definition at line 225 of file StdBuf.h.

    {
        if (isNull() && !inSize) return;
        const void *pOldData = getData();
        size_t iOldSize = iSize;
        New(inSize);
        Write(pOldData, std::min(iOldSize, inSize));
    }

References getData(), iSize, isNull(), New(), and Write().

Referenced by Duplicate(), and C4PktBuf::operator=().

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DeletePointer()

static void StdBuf::DeletePointer ( void *  data )

inlinestatic

Definition at line 196 of file StdBuf.h.

    {
        free(data);
    }

Referenced by C4ID::CompileFunc(), and C4GroupEntry::~C4GroupEntry().

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Duplicate()

StdBuf StdBuf::Duplicate ( ) const

inline

Definition at line 248 of file StdBuf.h.

    {
        StdBuf Buf; Buf.Copy(*this); return Buf;
    }

References Copy().

Referenced by C4NetIOPacket::Duplicate().

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getData()

const void* StdBuf::getData ( ) const

inline

Definition at line 99 of file StdBuf.h.

{ return fRef ? pData : pMData; }

References fRef.

Referenced by C4Network2ResChunk::AddTo(), Append(), Compare(), CompileFunc(), Copy(), CStdVectorFont::CStdVectorFont(), getBufPtr(), C4PktBuf::getData(), GetDbgRecPktData(), GetHash(), getPtr(), getRef(), isNull(), C4KeyboardInput::LoadCustomConfig(), C4Network2IODiscoverClient::OnPacket(), C4HTTPClient::Query(), StdCompilerINIRead::ReadString(), C4Record::Rec(), Ref(), SaveToFile(), C4Network2::StreamOut(), and Write().

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GetHash()

int StdBuf::GetHash ( ) const

inline

Definition at line 322 of file StdBuf.h.

    {
        if (isNull()) return 0;
        return crc32(0, reinterpret_cast<const Bytef *>(getData()), getSize());
    }

References getData(), getSize(), and isNull().

Referenced by StdStrBuf::GetHash().

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getMData()

void* StdBuf::getMData ( )

inline

Definition at line 100 of file StdBuf.h.

{ assert(!fRef); return pMData; }

References fRef.

Referenced by C4Group::Add(), C4Playback::Check(), CompileFunc(), CStdVectorFont::CStdVectorFont(), getMBufPtr(), getMPtr(), GrabPointer(), C4TextureShape::Load(), C4SoundEffect::Load(), C4Group::LoadEntry(), LoadFromFile(), C4SolidMask::LoadMaskFromFile(), C4Playback::NextSequentialChunk(), and C4Network2::StartStreaming().

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getMPtr()

void* StdBuf::getMPtr ( size_t  i )

inline

Definition at line 105 of file StdBuf.h.

{ return reinterpret_cast<char*>(getMData()) + i; }

References getMData().

Referenced by Move(), and Write().

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getPart()

StdBuf StdBuf::getPart ( size_t  iStart, size_t  inSize  ) const

inline

Definition at line 107 of file StdBuf.h.

    {
        assert(iStart + inSize <= iSize);
        return StdBuf(getPtr(iStart), inSize);
    }

References getPtr(), iSize, and StdBuf().

Referenced by C4NetIOPacket::getPBuf(), C4NetIOTCP::Peer::OnRecv(), C4Playback::ReadBinary(), and C4NetIOTCP::UnpackPacket().

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getPtr()

const void* StdBuf::getPtr ( size_t  i ) const

inline

Definition at line 104 of file StdBuf.h.

{ return reinterpret_cast<const char*>(getData()) + i; }

References getData().

Referenced by Compare(), getPart(), Move(), StdCompilerBinRead::Raw(), and StdCompilerBinRead::String().

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getRef()

StdBuf StdBuf::getRef ( ) const

inline

Definition at line 271 of file StdBuf.h.

    {
        return StdBuf(getData(), getSize());
    }

References getData(), getSize(), and StdBuf().

Referenced by C4NetIOPacket::getRef(), operator+(), and C4Playback::ReadBinary().

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getSize()

size_t StdBuf::getSize ( ) const

inline

Definition at line 101 of file StdBuf.h.

{ return iSize; }

References iSize.

Referenced by C4Group::Add(), C4Network2ResChunk::AddTo(), Append(), C4Record::ClearStreamingBuf(), Compare(), Copy(), CStdVectorFont::CStdVectorFont(), C4NetIOUDP::DoLoopbackTest(), C4Network2::DrawStatus(), GetDbgRecPktData(), GetHash(), C4NetIOPacket::getPBuf(), C4NetIOPacket::getPData(), C4Network2::getPendingStreamData(), C4NetIOPacket::getPSize(), getRef(), StdCompilerBinRead::getRemainingBytes(), StdStrBuf::getSize(), C4PktBuf::getSize(), C4NetIOPacket::getStatus(), C4Network2IO::HandlePacket(), C4TextureShape::Load(), C4SoundEffect::Load(), LoadFromFile(), C4SolidMask::LoadMaskFromFile(), C4Network2IO::OnPacket(), C4Network2IODiscover::OnPacket(), C4Network2IODiscoverClient::OnPacket(), C4NetIOUDP::Peer::OnRecv(), operator==(), C4NetIOTCP::PackPacket(), C4HTTPClient::Query(), StdCompilerBinRead::Raw(), C4Playback::ReadBinary(), StdCompilerBinRead::ReadValue(), C4Record::Rec(), Ref(), C4Playback::ReWriteBinary(), SaveToFile(), C4NetIOSimpleUDP::Send(), C4Network2::StreamIn(), C4Playback::StreamToRecord(), StdCompilerBinRead::String(), Take(), C4NetIOTCP::UnpackPacket(), C4Network2RefServer::UnpackPacket(), and Write().

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GrabPointer()

void* StdBuf::GrabPointer ( )

inline

Definition at line 133 of file StdBuf.h.

    {
        if (isNull()) return nullptr;
        // Do not give out a buffer which someone else will free
        if (fRef) Copy();
        void *pMData = getMData();
        pData = pMData; fRef = true;
        return pMData;
    }

References Copy(), fRef, getMData(), and isNull().

Referenced by C4Group::Add(), StdStrBuf::GrabPointer(), and Take().

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Grow()

void StdBuf::Grow ( size_t  iGrow )

inline

Definition at line 171 of file StdBuf.h.

    {
        // Grow dereferences
        if (fRef) { Copy(iSize + iGrow); return; }
        if (!iGrow) return;
        // Realloc
        pMData = realloc(pMData, iSize += iGrow);
    }

References Copy(), fRef, and iSize.

Referenced by Append(), StdStrBuf::Grow(), C4NetIOTCP::PackPacket(), C4Playback::ReWriteBinary(), SetSize(), C4Network2::StreamIn(), and C4Playback::StreamToRecord().

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isNull()

bool StdBuf::isNull ( ) const

inline

Definition at line 98 of file StdBuf.h.

{ return ! getData(); }

References getData().

Referenced by Copy(), C4NetIOUDP::Packet::Empty(), GetHash(), GrabPointer(), C4NetIOTCP::Peer::hasWaitingData(), C4NetIOUDP::InitBroadcast(), StdStrBuf::isNull(), and operator!().

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isRef()

bool StdBuf::isRef ( ) const

inline

Definition at line 102 of file StdBuf.h.

{ return fRef; }

References fRef.

Referenced by StdStrBuf::isRef(), and StdBuf().

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LoadFromFile()

bool StdBuf::LoadFromFile

(

const char *

szFile

)

Definition at line 32 of file StdBuf.cpp.

{
    // Open file
#ifdef _WIN32
    int fh = _wopen(::GetWideChar(szFile), O_BINARY | O_RDONLY | O_SEQUENTIAL, S_IREAD | S_IWRITE);
#else
    int fh = open(szFile, O_BINARY | O_CLOEXEC | O_RDONLY | O_SEQUENTIAL, S_IREAD | S_IWRITE);
#endif
    if (fh < 0) return false;
    // Create buf
    New(FileSize(fh));
    // Read
    if (read(fh, getMData(), getSize()) != (signed int) getSize())
    {
        close(fh);
        return false;
    }
    close(fh);
    // Ok
    return true;
}

References FileSize(), getMData(), getSize(), GetWideChar(), New(), O_BINARY, O_CLOEXEC, and O_SEQUENTIAL.

Referenced by C4ControlJoinPlayer::C4ControlJoinPlayer(), C4ControlReInitScenario::C4ControlReInitScenario(), C4Playback::StreamToRecord(), and C4ControlJoinPlayer::Strip().

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Move()

void StdBuf::Move ( size_t  iFrom, size_t  inSize, size_t  iTo = 0  )

inline

Definition at line 159 of file StdBuf.h.

    {
        assert(iFrom + inSize <= iSize); assert(iTo + inSize <= iSize);
        std::memmove(getMPtr(iTo), getPtr(iFrom), inSize);
    }

References getMPtr(), getPtr(), and iSize.

Referenced by C4Record::ClearStreamingBuf(), StdStrBuf::Move(), C4NetIOTCP::Peer::OnRecv(), C4Playback::ReadBinary(), and C4Network2::StreamOut().

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New()

void StdBuf::New ( size_t  inSize )

inline

Definition at line 146 of file StdBuf.h.

    {
        Clear();
        pMData = malloc(iSize = inSize);
        fRef = false;
    }

References Clear(), fRef, and iSize.

Referenced by StdCompilerBinWrite::BeginSecond(), C4NetIOPacket::C4NetIOPacket(), CompileFunc(), Copy(), C4NetIOSimpleUDP::Execute(), C4Group::LoadEntry(), LoadFromFile(), C4Playback::NextSequentialChunk(), C4NetpuncherPacket::PackTo(), StdCompilerINIRead::ReadString(), StdStrBuf::Replace(), C4Network2::StartStreaming(), and C4Playback::StreamToRecord().

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operator!()

bool StdBuf::operator! ( ) const

inline

Definition at line 292 of file StdBuf.h.

{ return isNull(); }

References isNull().

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operator!=()

bool StdBuf::operator!= ( const StdBuf &  Buf2 ) const

inline

Definition at line 312 of file StdBuf.h.

{ return ! operator == (Buf2); }

References operator==().

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operator+()

StdBuf StdBuf::operator+ ( const StdBuf &  Buf2 ) const

inline

Definition at line 300 of file StdBuf.h.

    {
        StdBuf Buf(getRef());
        Buf.Append(Buf2);
        return Buf;
    }

References Append(), and getRef().

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operator+=()

StdBuf StdBuf::operator+= ( const StdBuf &  Buf2 )

inline

Definition at line 295 of file StdBuf.h.

    {
        Append(Buf2);
        return *this;
    }

References Append().

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operator=()

StdBuf& StdBuf::operator= ( StdBuf &&  Buf2 )

inline

Definition at line 315 of file StdBuf.h.

    {
        if (Buf2.isRef()) Ref(Buf2); else Take(std::move(Buf2));
        return *this;
    }

References Ref(), and Take().

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operator==()

bool StdBuf::operator== ( const StdBuf &  Buf2 ) const

inline

Definition at line 308 of file StdBuf.h.

    {
        return getSize() == Buf2.getSize() && !Compare(Buf2);
    }

References Compare(), and getSize().

Referenced by operator!=().

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Ref() [1/2]

void StdBuf::Ref ( const StdBuf &  Buf2 )

inline

Definition at line 266 of file StdBuf.h.

    {
        Ref(Buf2.getData(), Buf2.getSize());
    }

References getData(), getSize(), and Ref().

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Ref() [2/2]

void StdBuf::Ref ( const void *  pnData, size_t  inSize  )

inline

Definition at line 118 of file StdBuf.h.

    {
        Clear();
        fRef = true; pData = pnData; iSize = inSize;
    }

References Clear(), fRef, and iSize.

Referenced by Copy(), operator=(), StdStrBuf::Ref(), Ref(), and StdBuf().

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SaveToFile()

bool StdBuf::SaveToFile

(

const char *

szFile

)

const

Definition at line 53 of file StdBuf.cpp.

{
    // Open file
#ifdef _WIN32
    int fh = _wopen(::GetWideChar(szFile), O_BINARY | O_CREAT | O_WRONLY | O_SEQUENTIAL | O_TRUNC, S_IREAD | S_IWRITE);
#else
    int fh = open(szFile, O_BINARY | O_CLOEXEC | O_CREAT | O_WRONLY | O_SEQUENTIAL | O_TRUNC, S_IREAD | S_IWRITE);
#endif
    if (fh < 0) return false;
    // Write data
    if (write(fh, getData(), getSize()) != (signed int) getSize())
    {
        close(fh);
        return false;
    }
    close(fh);
    // Ok
    return true;
}

References getData(), getSize(), GetWideChar(), O_BINARY, O_CLOEXEC, and O_SEQUENTIAL.

Referenced by C4Playback::Open(), C4DownloadDlg::ShowModal(), C4Playback::StreamToRecord(), and C4ControlJoinPlayer::Strip().

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SetSize()

void StdBuf::SetSize ( size_t  inSize )

inline

Definition at line 204 of file StdBuf.h.

    {
        if (inSize > iSize)
            Grow(inSize - iSize);
        else
            Shrink(iSize - inSize);
    }

References Grow(), iSize, and Shrink().

Referenced by StdStrBuf::AppendFormatV(), C4Playback::Check(), C4Record::ClearStreamingBuf(), CStdVectorFont::CStdVectorFont(), C4NetIOSimpleUDP::Execute(), C4Playback::NextSequentialChunk(), C4Playback::ReWriteBinary(), and C4Playback::StreamToRecord().

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Shrink()

void StdBuf::Shrink ( size_t  iShrink )

inline

Definition at line 180 of file StdBuf.h.

    {
        assert(iSize >= iShrink);
        // Shrink dereferences
        if (fRef) { Copy(iSize - iShrink); return; }
        if (!iShrink) return;
        // Realloc
        pMData = realloc(pMData, iSize -= iShrink);
    }

References Copy(), fRef, and iSize.

Referenced by C4Playback::ReadBinary(), StdCompilerINIRead::ReadString(), SetSize(), and StdStrBuf::Shrink().

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Take() [1/3]

void StdBuf::Take ( StdBuf &&  Buf2 )

inline

Definition at line 280 of file StdBuf.h.

    {
        Take(Buf2.GrabPointer(), Buf2.getSize());
    }

References Take().

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Take() [2/3]

void StdBuf::Take ( StdBuf &  Buf2 )

inline

Definition at line 276 of file StdBuf.h.

    {
        Take(Buf2.GrabPointer(), Buf2.getSize());
    }

References getSize(), GrabPointer(), and Take().

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Take() [3/3]

void StdBuf::Take ( void *  pnData, size_t  inSize  )

inline

Definition at line 124 of file StdBuf.h.

    {
        Clear();
        if (pnData)
        {
            fRef = false; pMData = pnData; iSize = inSize;
        }
    }

References Clear(), fRef, and iSize.

Referenced by C4Network2IO::HandlePacket(), operator=(), C4Network2ResChunk::Set(), StdBuf(), StdStrBuf::Take(), and Take().

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Write() [1/2]

void StdBuf::Write ( const StdBuf &  Buf2, size_t  iAt = 0  )

inline

Definition at line 213 of file StdBuf.h.

    {
        Write(Buf2.getData(), Buf2.getSize(), iAt);
    }

References getData(), getSize(), and Write().

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Write() [2/2]

void StdBuf::Write ( const void *  pnData, size_t  inSize, size_t  iAt = 0  )

inline

Definition at line 153 of file StdBuf.h.

    {
        assert(iAt + inSize <= iSize);
        if (pnData && inSize) std::memcpy(getMPtr(iAt), pnData, inSize);
    }

References getMPtr(), and iSize.

Referenced by StdStrBuf::Append(), Append(), C4NetIOPacket::C4NetIOPacket(), Copy(), C4NetIOTCP::PackPacket(), StdCompilerBinWrite::Raw(), C4Playback::ReWriteBinary(), Write(), and StdCompilerBinWrite::WriteData().

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Member Data Documentation

union { ... }

fRef

bool StdBuf::fRef = true

protected

Definition at line 82 of file StdBuf.h.

Referenced by Clear(), getData(), getMData(), GrabPointer(), Grow(), isRef(), New(), Ref(), Shrink(), and Take().

iSize

unsigned int StdBuf::iSize = 0

protected

Definition at line 92 of file StdBuf.h.

Referenced by StdStrBuf::Append(), Append(), StdStrBuf::AppendFormatV(), Clear(), CompileFunc(), Copy(), StdStrBuf::copyPart(), getPart(), getSize(), Grow(), Move(), New(), Ref(), SetSize(), Shrink(), Take(), and Write().

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The documentation for this class was generated from the following files:

• StdBuf.h
• StdBuf.cpp