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/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
Copyright (c) 2000-2001 Palm, Inc. or its subsidiaries.
All rights reserved.
This file is part of the Palm OS Emulator.
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 2 of the License, or
(at your option) any later version.
\* ===================================================================== */
#ifndef EmStreamFile_h
#define EmStreamFile_h
#include "EmStream.h" // EmStream
#include "EmFileRef.h" // EmFileRef
#include "EmTypes.h" // ErrCode
#include "stdio.h" // FILE
enum
{
kOpenExistingForRead, // "r" Open an existing file for input.
kCreateOrEraseForWrite, // "w" Create a new file, or truncate an
// existing one, for output.
kCreateOrOpenForWrite, // "a" Create a new file, or append to an
// existing one, for output.
kOpenExistingForUpdate, // "r+" Open an existing file for update,
// starting at the beginning of the file.
kCreateOrEraseForUpdate, // "w+" Create a new file, or truncate an
// existing one, for update.
kCreateOrOpenForUpdate, // "a+" Create a new file, or append to an
// existing one, for update.
kOpenTypeMask = 63,
kOpenText = 64
};
class EmStreamFile : public EmStream
{
public:
EmStreamFile (const EmFileRef&,
long openMode,
EmFileCreator creator = kFileCreatorNone,
EmFileType fileType = kFileTypeNone);
virtual ~EmStreamFile (void);
virtual void SetMarker (int32 inOffset,
StreamFromType inFromWhere);
virtual int32 GetMarker (void) const;
virtual void SetLength (int32 inLength);
virtual int32 GetLength (void) const;
virtual ErrCode PutBytes (const void* inBuffer,
int32 inByteCount);
virtual ErrCode GetBytes (void* outBuffer,
int32 inByteCount);
EmFileRef GetFileRef (void) const
{
return fFileRef;
}
protected:
void Open (const EmFileRef&,
long openMode,
EmFileCreator creator,
EmFileType fileType);
void Close (void);
void Throw (int) const;
void SetFileNameParameter (void) const;
private:
// Protect the copy constructor so that we don't
// accidentally make copies (what does it mean to
// copy a reference to an open file?).
EmStreamFile (const EmStreamFile&);
EmFileRef fFileRef;
#if USE_MAC_CALLS
short fRefNum;
Bool fTextMode;
#else
FILE* fStream;
#endif
};
#endif /* EmStreamFile_h */
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