binaryFile.hpp

//
// Copyright (c) Singular Inversions Inc. 2000
//
// Authors:             Andrew Beatty
// Created:     Sept. 4, 2000
//
 
#ifndef FR2_BINARYFILE_HPP
#define FR2_BINARYFILE_HPP
 
#include "algs.hpp"
#include "FgSerial.hpp"
 
namespace Fg {
 
class FutBinaryFileC
{
public:
    // Constructor requires the unique file ID
    explicit
        FutBinaryFileC(std::string);
 
        ~FutBinaryFileC()
    {close();}
 
    void
    changeFileId(const std::string &newFileId); // fptr must be zero.
 
        bool
    openForRead(String8 const &);
 
        bool
    openForOverwrite(String8 const &);
 
    bool
    writeHeader(const void *data,uint size,uint num);
 
    bool
    readHeader(void *data,uint size,uint num);
 
        bool
    write(const void *data,uint size,uint num);
 
        bool
    read(void *data,uint size,uint num);
 
    bool    seek(long offsetFromBeginning);
        void    close();
        bool    valid() const {return (fptr != NULL);}
    bool    operator!() const { return (fptr==NULL); }
    bool    eof();
 
protected:
        String8        m_fname;
        std::string   fileId;
        FILE                    *fptr;
 
        FutBinaryFileC(FutBinaryFileC&);                        // Copy constructor disallowed.
        FutBinaryFileC& operator=(FutBinaryFileC&); // Operator= disallowed.
};
 
}
 
#endif