source: vbox/trunk/src/libs/xpcom18a4/nsprpub/lib/prstreams/prstrms.h@ 55761

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/*
 * Robin J. Maxwell 11-22-96
 */

#ifndef _PRSTRMS_H
#define _PRSTRMS_H

#include "prtypes.h"
#include "prio.h"

#ifdef _MSC_VER
#pragma warning( disable : 4275)
#endif
#include <iostream.h>

#if defined(AIX) && defined(__64BIT__)
typedef long PRstreambuflen;
#else
typedef int PRstreambuflen;
#endif

#if defined (PRFSTREAMS_BROKEN)

// fix it sometime

#define  PRfilebuf      streambuf
#define  PRifstream     ifstream
#define  PRofstream     ofstream
#define  PRfstream      fstream

#else

class PR_IMPLEMENT(PRfilebuf): public streambuf
{
public:
    PRfilebuf();
    PRfilebuf(PRFileDesc *fd);
    PRfilebuf(PRFileDesc *fd, char * buffptr, int bufflen);
    ~PRfilebuf();
    virtual     int     overflow(int=EOF);
    virtual     int     underflow();
    virtual     streambuf *setbuf(char *buff, PRstreambuflen bufflen);
    virtual     streampos seekoff(streamoff, ios::seek_dir, int);
    virtual int sync();
    PRfilebuf *open(const char *name, int mode, int flags);
        PRfilebuf *attach(PRFileDesc *fd);
    PRfilebuf *close();
        int     is_open() const {return (_fd != 0);}
    PRFileDesc *fd(){return _fd;}

private:
    PRFileDesc * _fd;
    PRBool _opened;
        PRBool _allocated;
};

class PR_IMPLEMENT(PRifstream): public istream {
public:
        PRifstream();
        PRifstream(const char *, int mode=ios::in, int flags = 0);
        PRifstream(PRFileDesc *);
        PRifstream(PRFileDesc *, char *, int);
        ~PRifstream();

        streambuf * setbuf(char *, int);
        PRfilebuf* rdbuf(){return (PRfilebuf*) ios::rdbuf(); }

        void attach(PRFileDesc *fd);
        PRFileDesc *fd() {return rdbuf()->fd();}

        int is_open(){return rdbuf()->is_open();}
        void open(const char *, int mode=ios::in, int flags= 0);
        void close();
};

class PR_IMPLEMENT(PRofstream) : public ostream {
public:
        PRofstream();
        PRofstream(const char *, int mode=ios::out, int flags = 0);
        PRofstream(PRFileDesc *);
        PRofstream(PRFileDesc *, char *, int);
        ~PRofstream();

        streambuf * setbuf(char *, int);
        PRfilebuf* rdbuf() { return (PRfilebuf*) ios::rdbuf(); }

        void attach(PRFileDesc *);
        PRFileDesc *fd() {return rdbuf()->fd();}

        int is_open(){return rdbuf()->is_open();}
        void open(const char *, int =ios::out, int = 0);
        void close();
};
        
class PR_IMPLEMENT(PRfstream) : public iostream {
public:
        PRfstream();
        PRfstream(const char *name, int mode, int flags= 0);
        PRfstream(PRFileDesc *fd);
        PRfstream(PRFileDesc *fd, char *buff, int bufflen);
        ~PRfstream();

        streambuf * setbuf(char *, int);
        PRfilebuf* rdbuf(){ return (PRfilebuf*) ostream::rdbuf(); }

        void attach(PRFileDesc *);
        PRFileDesc *fd() { return rdbuf()->fd(); }

        int is_open() { return rdbuf()->is_open(); }
        void open(const char *, int, int = 0);
        void close();
};

#endif

#endif /* _PRSTRMS_H */