stdiobuf.h

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//
// Copyright (c) 2002-2004 California Institute of Technology
// Copyright (c) 2004-2007 University of Southern California
// Rob Peters <rjpeters at usc dot edu>
//
// created: Tue Feb 25 13:27:36 2003
// commit: $Id: stdiobuf.h 10065 2007-04-12 05:54:56Z rjpeters $
// $HeadURL: file:///lab/rjpeters/svnrepo/code/trunk/groovx/src/rutz/stdiobuf.h $
//
// --------------------------------------------------------------------
//
// This file is part of GroovX.
//   [http://ilab.usc.edu/rjpeters/groovx/]
//
// GroovX 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.
//
// GroovX 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 GroovX; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//

#ifndef GROOVX_RUTZ_STDIOBUF_H_UTC20050626084019_DEFINED
#define GROOVX_RUTZ_STDIOBUF_H_UTC20050626084019_DEFINED

#include <cstdio>
#include <streambuf>
#include <istream>

namespace rutz
{
  class stdiobuf;
  class stdiostream;
}

class rutz::stdiobuf : public std::streambuf
{
private:
  int m_mode;
  int m_filedes;

  stdiobuf(const stdiobuf&);
  stdiobuf& operator=(const stdiobuf&);

  static const int s_buf_size = 4092;
  static const int s_pback_size = 4;
  char buffer[s_buf_size];

  void init(int fd, int om, bool throw_exception);

  int flushoutput();

public:

  stdiobuf(FILE* f, int om, bool throw_exception=false);


  stdiobuf(int fd, int om, bool throw_exception=false);

  ~stdiobuf() { close(); }

  bool is_open() const { return m_filedes >= 0; }


  void close();


  virtual int underflow();


  virtual int overflow(int c);

  virtual int sync();
};

class rutz::stdiostream : public std::iostream
{
private:
  rutz::stdiobuf m_buf;

public:

  stdiostream(FILE* f, int om, bool throw_exception=false) :
    std::iostream(0),
    m_buf(f, om, throw_exception)
  {
    rdbuf(&m_buf);
  }


  stdiostream(int fd, int om, bool throw_exception=false) :
    std::iostream(0),
    m_buf(fd, om, throw_exception)
  {
    rdbuf(&m_buf);
  }

  bool is_open() const { return m_buf.is_open(); }

  void close() { m_buf.close(); }
};

static const char __attribute__((used)) vcid_groovx_rutz_stdiobuf_h_utc20050626084019[] = "$Id: stdiobuf.h 10065 2007-04-12 05:54:56Z rjpeters $ $HeadURL: file:
#endif // !GROOVX_RUTZ_STDIOBUF_H_UTC20050626084019_DEFINED

---

The software described here is Copyright (c) 1998-2005, Rob Peters.
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