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CWE-ou-minkata/MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/CoreLib/hsStream.h

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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#ifndef hsStream_Defined
#define hsStream_Defined
#include <stdarg.h> // Included for GCC 3.2.2+
#include "hsTypes.h"
#include "hsMemory.h"
namespace hsPackFileSys {
struct FileEntry;
}
// Define this for use of Streams with Logging (commonly used w/ a packet sniffer)
// These streams log their reads to an event list
//#define STREAM_LOGGER
#ifndef STREAM_LOGGER
#define hsReadOnlyLoggingStream hsReadOnlyStream
#define LogRead(byteCount, buffer, desc) Read(byteCount, buffer)
#define LogReadSafeString() ReadSafeString();
#define LogReadSafeStringLong() ReadSafeStringLong();
#define LogSkip(deltaByteCount, desc) Skip(deltaByteCount)
#define LogReadSwap(value, desc) ReadSwap(value)
#define LogReadSwapArray(count, values, desc) ReadSwap(count, values)
#define LogSubStreamStart(desc) LogVoidFunc()
#define LogSubStreamPushDesc(desc) LogVoidFunc()
#define LogSubStreamEnd() LogVoidFunc()
#define LogStringString(s) LogVoidFunc()
#endif
class hsStream {
public:
enum {
kEolnCode = '\n',
kComment = '#'
};
enum VDB_Type {// Virtual Database type
kVDB_GroupObject,
kVDB_Mesh
};
protected:
UInt32 fBytesRead;
UInt32 fPosition;
hsBool IsTokenSeparator(char c);
public:
hsStream() : fBytesRead(0), fPosition(0) {}
virtual ~hsStream();
virtual hsBool Open(const char *, const char * = "rb")=0;
virtual hsBool Open(const wchar *, const wchar * = L"rb")=0;
virtual hsBool Close()=0;
virtual hsBool AtEnd();
virtual UInt32 Read(UInt32 byteCount, void * buffer) = 0;
virtual UInt32 Write(UInt32 byteCount, const void* buffer) = 0;
virtual void Skip(UInt32 deltaByteCount) = 0;
virtual void Rewind() = 0;
virtual void FastFwd();
virtual UInt32 GetPosition() const;
virtual void SetPosition(UInt32 position);
virtual void Truncate();
virtual void Flush() {}
#ifdef STREAM_LOGGER
// Logging Reads & Skips
virtual UInt32 LogRead(UInt32 byteCount, void * buffer, const char* desc) { return Read(byteCount,buffer); }
virtual char* LogReadSafeString() { return ReadSafeString(); }
virtual char* LogReadSafeStringLong() { return ReadSafeStringLong(); }
virtual void LogSkip(UInt32 deltaByteCount, const char* desc) { Skip(deltaByteCount); }
// Stream Notes for Logging
virtual void LogStringString(const char* s) { }
virtual void LogSubStreamStart(const char* desc) { }
virtual void LogSubStreamEnd() { }
virtual void LogSubStreamPushDesc(const char* desc) { }
#endif
void LogVoidFunc() { }
// Optimization for small Reads
virtual UInt8 ReadByte();
virtual hsBool Read4Bytes(void *buffer); // Reads 4 bytes, return true if success
virtual hsBool Read8Bytes(void *buffer); // Reads 8 bytes, return true if success
virtual hsBool Read12Bytes(void *buffer); // Reads 12 bytes, return true if success
virtual UInt32 GetEOF();
UInt32 GetSizeLeft();
virtual void CopyToMem(void* mem);
virtual hsBool IsCompressed() { return false; }
UInt32 WriteString(const char cstring[]);
UInt32 WriteFmt(const char * fmt, ...);
UInt32 WriteFmtV(const char * fmt, va_list av);
UInt32 WriteSafeStringLong(const char *string); // uses 4 bytes for length
UInt32 WriteSafeWStringLong(const wchar_t *string);
char * ReadSafeStringLong();
wchar_t * ReadSafeWStringLong();
UInt32 WriteSafeString(const char *string); // uses 2 bytes for length
UInt32 WriteSafeWString(const wchar_t *string);
char * ReadSafeString();
wchar_t * ReadSafeWString();
hsBool GetToken(char *s, UInt32 maxLen=UInt32(-1), const char beginComment=kComment, const char endComment=kEolnCode);
hsBool ReadLn(char* s, UInt32 maxLen=UInt32(-1), const char beginComment=kComment, const char endComment=kEolnCode);
bool Readbool();
hsBool ReadBool();
void ReadBool(int count, hsBool values[]);
UInt16 ReadSwap16();
void ReadSwap16(int count, UInt16 values[]);
UInt32 ReadSwap32();
void ReadSwap32(int count, UInt32 values[]);
UInt32 ReadUnswap32();
void Writebool(bool value);
void WriteBool(hsBool value);
void WriteBool(int count, const hsBool values[]);
void WriteByte(UInt8 value);
void WriteSwap16(UInt16 value);
void WriteSwap16(int count, const UInt16 values[]);
void WriteSwap32(UInt32 value);
void WriteSwap32(int count, const UInt32 values[]);
void WriteUnswap32(UInt32 value);
/* Overloaded Begin (8 & 16 & 32 int)*/
/* yes, swapping an 8 bit value does nothing, just useful*/
void ReadSwap(bool* value) { *value = this->ReadByte() ? true : false; }
void ReadSwap(UInt8* value) { *value = this->ReadByte(); }
void ReadSwap(int count, UInt8 values[]) { this->Read(count, values); }
void ReadSwap(UInt16* value) { *value = this->ReadSwap16(); }
void ReadSwap(int count, UInt16 values[]) { this->ReadSwap16(count, values); }
void ReadSwap(UInt32* value) { *value = this->ReadSwap32(); }
void ReadSwap(int count, UInt32 values[]) { this->ReadSwap32(count, values); }
#ifdef STREAM_LOGGER
// Begin LogReadSwaps
virtual void LogReadSwap(bool* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwap(UInt8* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwapArray(int count, UInt8 values[], const char* desc) { this->ReadSwap(count, values); }
virtual void LogReadSwap(UInt16* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwapArray(int count, UInt16 values[], const char* desc) { this->ReadSwap(count, values); }
virtual void LogReadSwap(UInt32* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwapArray(int count, UInt32 values[], const char* desc) { this->ReadSwap(count, values); }
// End LogReadSwaps
#endif
void WriteSwap(bool value) { this->Write(1,&value); }
void WriteSwap(UInt8 value) { this->Write(1,&value); }
void WriteSwap(int count, const UInt8 values[]) { this->Write(count, values); }
void WriteSwap(UInt16 value) { this->WriteSwap16(value); }
void WriteSwap(int count, const UInt16 values[]) { this->WriteSwap16(count, values); }
void WriteSwap(UInt32 value) { this->WriteSwap32(value); }
void WriteSwap(int count, const UInt32 values[]) { this->WriteSwap32(count, values); }
void ReadSwap(Int8* value) { *value = this->ReadByte(); }
void ReadSwap(int count, Int8 values[]) { this->Read(count, values); }
void ReadSwap(char* value) { *value = (char)this->ReadByte(); }
void ReadSwap(int count, char values[]) { this->Read(count, values); }
void ReadSwap(Int16* value) { *value = (Int16)this->ReadSwap16(); }
void ReadSwap(int count, Int16 values[]) { this->ReadSwap16(count, (UInt16*)values); }
void ReadSwap(Int32* value) { *value = (Int32)this->ReadSwap32(); }
void ReadSwap(int count, Int32 values[]) { this->ReadSwap32(count, (UInt32*)values); }
void ReadSwap(int* value) { *value = (Int32)this->ReadSwap32(); }
void ReadSwap(int count, int values[]) { this->ReadSwap32(count, (UInt32*)values); }
#ifdef STREAM_LOGGER
// Begin LogReadSwaps
virtual void LogReadSwap(Int8* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwapArray(int count, Int8 values[], const char* desc) { this->ReadSwap(count, values); }
virtual void LogReadSwap(char* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwapArray(int count, char values[], const char* desc) { this->ReadSwap(count, values); }
virtual void LogReadSwap(Int16* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwapArray(int count, Int16 values[], const char* desc) { this->ReadSwap(count, (UInt16*)values); }
virtual void LogReadSwap(Int32* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwapArray(int count, Int32 values[], const char* desc) { this->ReadSwap(count, (UInt32*)values); }
virtual void LogReadSwap(int* value, const char* desc) { this->ReadSwap(value); }
virtual void LogReadSwapArray(int count, int values[], const char* desc) { this->ReadSwap(count, (UInt32*)values); }
// End LogReadSwaps
#endif
void WriteSwap(Int8 value) { this->Write(1,&value); }
void WriteSwap(int count, const Int8 values[]) { this->Write(count, values); }
void WriteSwap(char value) { this->Write(1,(UInt8*)&value); }
void WriteSwap(int count, const char values[]) { this->Write(count, (UInt8*)values); }
void WriteSwap(Int16 value) { this->WriteSwap16((UInt16)value); }
void WriteSwap(int count, const Int16 values[]) { this->WriteSwap16(count, (UInt16*)values); }
void WriteSwap(Int32 value) { this->WriteSwap32((UInt32)value); }
void WriteSwap(int count, const Int32 values[]) { this->WriteSwap32(count, (UInt32*)values); }
void WriteSwap(int value) { this->WriteSwap32((UInt32)value); }
void WriteSwap(int count, const int values[]) { this->WriteSwap32(count, (UInt32*)values); }
/* Overloaded End */
#if HS_CAN_USE_FLOAT
float ReadSwapFloat();
void ReadSwapFloat(int count, float values[]);
double ReadSwapDouble();
void ReadSwapDouble(int count, double values[]);
float ReadUnswapFloat();
void WriteSwapFloat(float value);
void WriteSwapFloat(int count, const float values[]);
void WriteSwapDouble(double value);
void WriteSwapDouble(int count, const double values[]);
void WriteUnswapFloat(float value);
/* Overloaded Begin (Float)*/
void ReadSwap(float* value) { *value = ReadSwapFloat(); }
void ReadSwap(int count, float values[]) { ReadSwapFloat(count, values); }
void ReadSwap(double* value) { *value = ReadSwapDouble(); }
void ReadSwap(int count, double values[]) { ReadSwapDouble(count, values); }
#ifdef STREAM_LOGGER
// Begin LogReadSwaps
virtual void LogReadSwap(float* value, const char* desc) { ReadSwap(value); }
virtual void LogReadSwapArray(int count, float values[], const char* desc) { ReadSwap(count, values); }
virtual void LogReadSwap(double* value, const char* desc) { ReadSwap(value); }
virtual void LogReadSwapArray(int count, double values[], const char* desc) { ReadSwap(count, values); }
// End LogReadSwaps
#endif
void WriteSwap(float value) { WriteSwapFloat(value); }
void WriteSwap(int count, const float values[]) { WriteSwapFloat(count, values); }
void WriteSwap(double value) { WriteSwapDouble(value); }
void WriteSwap(int count, const double values[]) { WriteSwapDouble(count, values); }
/* Overloaded End */
#endif
#if HS_SCALAR_IS_FIXED
hsFixed ReadSwapScalar() { return (hsFixed)this->ReadSwap32(); }
void ReadSwapScalar(int count, hsFixed values[])
{
this->ReadSwap32(count, (UInt32*)values);
}
hsFixed ReadUnswapScalar() { return (hsFixed)this->ReadUnswap32(); }
void WriteSwapScalar(hsFixed value) { this->WriteSwap32(value); }
void WriteSwapScalar(int count, const hsFixed values[])
{
this->WriteSwap32(count, (UInt32*)values);
}
void WriteUnswapScalar(hsFixed value) { this->WriteUnswap32(value); }
/* Overloaded Begin (Scalar) */
void ReadSwap(hsFixed* value) { this->ReadSwap((UInt32*)value); }
void ReadSwap(int count, hsFixed values[]) { this->ReadSwap(count, (UInt32*)values); }
void WriteSwap(hsFixed value) { this->WriteSwap((UInt32)value); }
void WriteSwap(int count, const hsFixed values[]) { this->WriteSwap(count, (UInt32*)values); }
/* Overloaded End */
#else
float ReadSwapScalar() { return (float)this->ReadSwapFloat(); }
void ReadSwapScalar(int count, float values[])
{
this->ReadSwapFloat(count, (float*)values);
}
float ReadUnswapScalar() { return (float)this->ReadUnswapFloat(); }
void WriteSwapScalar(float value) { this->WriteSwapFloat(value); }
void WriteSwapScalar(int count, const float values[])
{
this->WriteSwapFloat(count, (float*)values);
}
void WriteUnswapScalar(float value) { this->WriteUnswapFloat(value); }
#endif
void WriteSwapAtom(UInt32 tag, UInt32 size);
UInt32 ReadSwapAtom(UInt32* size);
/* Overloaded Begin (Atom)*/
void WriteSwap(UInt32* tag, UInt32 size) { WriteSwapAtom(*tag, size); }
void ReadSwap(UInt32* tag, UInt32 *size) { *tag = ReadSwapAtom(size); }
/* Overloaded End */
virtual void VirtualSetPosition(UInt32 pos, VDB_Type ){ SetPosition(pos); };
virtual hsPackFileSys::FileEntry *GetFileEntry() { return nil; } // Streams from Packfiles can return a FileEntry
};
class hsStreamable {
public:
virtual void Read(hsStream* stream) = 0;
virtual void Write(hsStream* stream) = 0;
virtual UInt32 GetStreamSize() = 0;
};
class hsFileStream: public hsStream
{
UInt32 fRef;
#if HS_BUILD_FOR_PS2
enum {
kBufferSize = 2*1024
};
UInt32 fFileSize;
char fBuffer[kBufferSize];
Int32 fVirtualFilePointer;
Int32 fBufferBase; // offset to top of fBuffer
hsBool fBufferIsEmpty;
hsBool fWriteBufferUsed; // In write mode. fBuffer must be flush, when file was closed.
#endif
public:
hsFileStream();
virtual ~hsFileStream();
virtual hsBool Open(const char *name, const char *mode = "rb");
virtual hsBool Open(const wchar *name, const wchar *mode = L"rb");
virtual hsBool Close();
virtual hsBool AtEnd();
virtual UInt32 Read(UInt32 byteCount, void* buffer);
virtual UInt32 Write(UInt32 byteCount, const void* buffer);
virtual void Skip(UInt32 deltaByteCount);
virtual void Rewind();
virtual void Truncate();
virtual UInt32 GetFileRef();
virtual void SetFileRef(UInt32 refNum);
};
#if !HS_BUILD_FOR_PS2
#if !(HS_BUILD_FOR_REFERENCE)
class hsUNIXStream: public hsStream
{
FILE* fRef;
char* fBuff;
public:
hsUNIXStream(): fRef(0), fBuff(nil) {}
~hsUNIXStream();
virtual hsBool Open(const char* name, const char* mode = "rb");
virtual hsBool Open(const wchar *name, const wchar *mode = L"rb");
virtual hsBool Close();
virtual hsBool AtEnd();
virtual UInt32 Read(UInt32 byteCount, void* buffer);
virtual UInt32 Write(UInt32 byteCount, const void* buffer);
virtual void SetPosition(UInt32 position);
virtual void Skip(UInt32 deltaByteCount);
virtual void Rewind();
virtual void FastFwd();
virtual void Truncate();
virtual void Flush();
FILE* GetFILE() { return fRef; }
void SetFILE(FILE* file) { fRef = file; }
virtual UInt32 GetEOF();
};
// Small substream class: give it a base stream, an offset and a length, and it'll
// treat all ops as if you had a chunk from the base stream as a separate, vanilla
// stream of the given length.
class plReadOnlySubStream: public hsStream
{
hsStream *fBase;
UInt32 fOffset, fLength;
void IFixPosition( void );
public:
plReadOnlySubStream(): fBase( nil ), fOffset( 0 ), fLength( 0 ) {}
~plReadOnlySubStream();
virtual hsBool Open(const char *, const char *) { hsAssert(0, "plReadOnlySubStream::Open NotImplemented"); return false; }
virtual hsBool Open(const wchar *, const wchar *) { hsAssert(0, "plReadOnlySubStream::Open NotImplemented"); return false; }
void Open( hsStream *base, UInt32 offset, UInt32 length );
virtual hsBool Close() { fBase = nil; fOffset = 0; fLength = 0; return true; }
virtual hsBool AtEnd();
virtual UInt32 Read(UInt32 byteCount, void* buffer);
virtual UInt32 Write(UInt32 byteCount, const void* buffer);
virtual void Skip(UInt32 deltaByteCount);
virtual void Rewind();
virtual void FastFwd();
virtual void Truncate();
virtual UInt32 GetEOF();
};
#endif
#endif
class hsRAMStream : public hsStream {
hsAppender fAppender;
hsAppenderIterator fIter;
public:
hsRAMStream();
hsRAMStream(UInt32 chunkSize);
virtual ~hsRAMStream();
virtual hsBool Open(const char *, const char *) { hsAssert(0, "hsRAMStream::Open NotImplemented"); return false; }
virtual hsBool Open(const wchar *, const wchar *) { hsAssert(0, "hsRAMStream::Open NotImplemented"); return false; }
virtual hsBool Close() { hsAssert(0, "hsRAMStream::Close NotImplemented"); return false; }
virtual hsBool AtEnd();
virtual UInt32 Read(UInt32 byteCount, void * buffer);
virtual UInt32 Write(UInt32 byteCount, const void* buffer);
virtual void Skip(UInt32 deltaByteCount);
virtual void Rewind();
virtual void Truncate();
virtual UInt32 GetEOF();
virtual void CopyToMem(void* mem);
void Reset(); // clears the buffers
};
class hsNullStream : public hsStream {
public:
virtual hsBool Open(const char *, const char *) { return true; }
virtual hsBool Open(const wchar *, const wchar *) { return true; }
virtual hsBool Close() { return true; }
virtual UInt32 Read(UInt32 byteCount, void * buffer); // throw's exception
virtual UInt32 Write(UInt32 byteCount, const void* buffer);
virtual void Skip(UInt32 deltaByteCount);
virtual void Rewind();
virtual void Truncate();
UInt32 GetBytesWritten() const { return fBytesRead; }
void Reset( ) { fBytesRead = 0; }
};
// read only mem stream
class hsReadOnlyStream : public hsStream {
protected:
char* fStart;
char* fData;
char* fStop;
public:
hsReadOnlyStream(int size, const void* data) { Init(size, data); }
hsReadOnlyStream() {}
virtual void Init(int size, const void* data) { fStart=((char*)data); fData=((char*)data); fStop=((char*)data + size); }
virtual hsBool Open(const char *, const char *) { hsAssert(0, "hsReadOnlyStream::Open NotImplemented"); return false; }
virtual hsBool Open(const wchar *, const wchar *) { hsAssert(0, "hsReadOnlyStream::Open NotImplemented"); return false; }
virtual hsBool Close() { hsAssert(0, "hsReadOnlyStream::Close NotImplemented"); return false; }
virtual hsBool AtEnd();
virtual UInt32 Read(UInt32 byteCount, void * buffer);
virtual UInt32 Write(UInt32 byteCount, const void* buffer); // throws exception
virtual void Skip(UInt32 deltaByteCount);
virtual void Rewind();
virtual void Truncate();
virtual UInt32 GetBytesRead() const { return fBytesRead; }
virtual UInt32 GetEOF() { return (UInt32)(fStop-fStart); }
virtual void CopyToMem(void* mem);
};
// write only mem stream
class hsWriteOnlyStream : public hsReadOnlyStream {
public:
hsWriteOnlyStream(int size, const void* data) : hsReadOnlyStream(size, data) {}
hsWriteOnlyStream() {}
virtual hsBool Open(const char *, const char *) { hsAssert(0, "hsWriteOnlyStream::Open NotImplemented"); return false; }
virtual hsBool Open(const wchar *, const wchar *) { hsAssert(0, "hsWriteOnlyStream::Open NotImplemented"); return false; }
virtual hsBool Close() { hsAssert(0, "hsWriteOnlyStream::Close NotImplemented"); return false; }
virtual UInt32 Read(UInt32 byteCount, void * buffer); // throws exception
virtual UInt32 Write(UInt32 byteCount, const void* buffer);
virtual UInt32 GetBytesRead() const { return 0; }
virtual UInt32 GetBytesWritten() const { return fBytesRead; }
};
// circular queue stream
class hsQueueStream : public hsStream {
private:
char* fQueue;
UInt32 fReadCursor;
UInt32 fWriteCursor;
UInt32 fSize;
public:
hsQueueStream(Int32 size);
~hsQueueStream();
virtual hsBool Open(const char *, const char *) { hsAssert(0, "hsQueueStream::Open NotImplemented"); return false; }
virtual hsBool Open(const wchar *, const wchar *) { hsAssert(0, "hsQueueStream::Open NotImplemented"); return false; }
virtual hsBool Close() { hsAssert(0, "hsQueueStream::Close NotImplemented"); return false; }
virtual UInt32 Read(UInt32 byteCount, void * buffer);
virtual UInt32 Write(UInt32 byteCount, const void* buffer);
virtual void Skip(UInt32 deltaByteCount);
virtual void Rewind();
virtual void FastFwd();
virtual hsBool AtEnd();
UInt32 GetSize() { return fSize; }
const char* GetQueue() { return fQueue; }
UInt32 GetReadCursor() { return fReadCursor; }
UInt32 GetWriteCursor() { return fWriteCursor; }
};
class hsBufferedStream : public hsStream
{
FILE* fRef;
UInt32 fFileSize;
enum { kBufferSize = 2*1024 };
char fBuffer[kBufferSize];
// If the buffer is empty, this is zero. Otherwise it is the size of the
// buffer (if we read a full block), or something less than that if we read
// a partial block at the end of the file.
UInt32 fBufferLen;
hsBool fWriteBufferUsed;
#ifdef HS_DEBUGGING
// For doing statistics on how efficient we are
int fBufferHits, fBufferMisses;
UInt32 fBufferReadIn, fBufferReadOut, fReadDirect, fLastReadPos;
char* fFilename;
const char* fCloseReason;
#endif
public:
hsBufferedStream();
virtual ~hsBufferedStream();
virtual hsBool Open(const char* name, const char* mode = "rb");
virtual hsBool Open(const wchar* name, const wchar* mode = L"rb");
virtual hsBool Close();
virtual hsBool AtEnd();
virtual UInt32 Read(UInt32 byteCount, void* buffer);
virtual UInt32 Write(UInt32 byteCount, const void* buffer);
virtual void Skip(UInt32 deltaByteCount);
virtual void Rewind();
virtual void Truncate();
virtual UInt32 GetEOF();
FILE* GetFileRef();
void SetFileRef(FILE* file);
// Something optional for when we're doing stats. Will log the reason why
// the file was closed. Really just for plRegistryPageNode.
void SetCloseReason(const char* reason)
{
#ifdef HS_DEBUGGING
fCloseReason = reason;
#endif
}
};
#endif