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prstrms.h

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is the Netscape Portable Runtime (NSPR).
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998-2000
 * the Initial Developer. All Rights Reserved.
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
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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 */

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