DwmMplsLabel.hh

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//===========================================================================
// @(#) $DwmPath$
//===========================================================================
//  Copyright (c) Daniel W. McRobb 2007, 2016, 2020, 2024
//  All rights reserved.
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions
//  are met:
//
//  1. Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
//  2. Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
//  3. The names of the authors and copyright holders may not be used to
//     endorse or promote products derived from this software without
//     specific prior written permission.
//
//  IN NO EVENT SHALL DANIEL W. MCROBB BE LIABLE TO ANY PARTY FOR
//  DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
//  INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE,
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//  OR THAT THE USE OF THIS SOFTWARE WILL NOT INFRINGE ANY PATENT,
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//===========================================================================
 
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#ifndef _DWMMPLSLABEL_HH_
#define _DWMMPLSLABEL_HH_
 
extern "C" {
  #include <bzlib.h>
  #include <zlib.h>
}
 
#include <cstdint>
#include <cstdio>
#include <iostream>
 
namespace Dwm {
 
  //--------------------------------------------------------------------------
  //--------------------------------------------------------------------------
  class MplsLabel
  {
  public:
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    MplsLabel();
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    MplsLabel(const std::string & s);
    
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    uint32_t Label() const;
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    uint32_t Label(uint32_t label);
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    uint8_t Exp() const;
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    uint8_t Exp(uint8_t exp);
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    bool S() const;
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    bool S(bool s);
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    uint8_t Ttl() const;
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    uint8_t Ttl(uint8_t ttl);
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    bool operator == (const MplsLabel & label) const;
    
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    std::istream & Read(std::istream & is);
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    std::ostream & Write(std::ostream & os) const;
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    ssize_t Read(int fd);
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    ssize_t Write(int fd) const;
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    size_t Read(FILE *f);
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    size_t Write(FILE *f) const;
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    int Read(gzFile gzf);
    
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    int Write(gzFile gzf) const;
    
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    int BZRead(BZFILE *bzf);
    
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    int BZWrite(BZFILE *bzf) const;
    
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    uint64_t StreamedLength() const;
    
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    friend std::ostream &
    operator << (std::ostream & os, const MplsLabel & label);
 
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    friend std::istream &
    operator >> (std::istream & is, MplsLabel & label);
    
  protected:
    uint32_t  _data;
  };
  
}  // namespace Dwm
 
#endif  // _DWMMPLSLABEL_HH_
 
//---------------------------- emacs settings -----------------------------
//  Local Variables:
//  mode: C++
//  tab-width: 2
//  indent-tabs-mode: nil
//  c-basic-offset: 2
//  End:
//-------------------------------------------------------------------------