• Overview
  • Examples
  • HowTos
  • Glossary
    • Packet.ct
    Go to the documentation of this file.
    1 //
    2 // Copyright (c) 2020 Fraunhofer Institute for Applied Information Technology (FIT)
    3 // Network Research Group (NET)
    4 // Schloss Birlinghoven, 53754 Sankt Augustin, GERMANY
    5 // Contact: support@wiback.org
    6 //
    7 // This file is part of the SENF code tree.
    8 // It is licensed under the 3-clause BSD License (aka New BSD License).
    9 // See LICENSE.txt in the top level directory for details or visit
    10 // https://opensource.org/licenses/BSD-3-Clause
    11 //
    12 
    13 
    14 /** \file
    15  \brief Packet non-inline template implementation */
    16 
    17 //#include "Packet.ih"
    18 
    19 // Custom includes
    20 
    21 #define prefix_
    22 //-/////////////////////////////////////////////////////////////////////////////////////////////////
    23 
    24 //-/////////////////////////////////////////////////////////////////////////////////////////////////
    25 // senf::Packet
    26 
    27 template <class OtherPacket>
    28 prefix_ OtherPacket senf::Packet::find(NoThrow_t)
    29  const
    30 {
    31  Packet p (*this);
    32  while (p && ! p.is<OtherPacket>())
    33  p = p.next(nothrow);
    34  if (p)
    35  return p.as<OtherPacket>();
    36  else
    37  return OtherPacket();
    38 }
    39 
    40 template <class OtherPacket>
    41 prefix_ OtherPacket senf::Packet::rfind(NoThrow_t)
    42  const
    43 {
    44  Packet p (*this);
    45  while (p && ! p.is<OtherPacket>())
    46  p = p.prev(nothrow);
    47  if (p)
    48  return p.as<OtherPacket>();
    49  else
    50  return OtherPacket();
    51 }
    52 
    53 //-/////////////////////////////////////////////////////////////////////////////////////////////////
    54 // senf::ConcretePacket<PacketType>
    55 
    56 template <class PacketType>
    57 template <class OtherPacket>
    58 prefix_ OtherPacket senf::ConcretePacket<PacketType>::next(NoThrow_t)
    59  const
    60 {
    61  PacketInterpreterBase::ptr p (Packet::ptr()->next());
    62  if (p)
    63  return (p->typeId() == typeIdValue<OtherPacket>()) ?
    64  OtherPacket(p->as<typename OtherPacket::type>()) : OtherPacket();
    65  PacketInterpreterBase::optional_range r (type::nextPacketRange(*this));
    66  if (r && ! r->empty()) {
    67  PacketInterpreterBase::ptr nxt (getNext(r));
    68  if (nxt && nxt->typeId() == typeIdValue<OtherPacket>())
    69  return OtherPacket(nxt->as<typename OtherPacket::type>());
    70  }
    71  return OtherPacket();
    72 }
    73 
    74 //-/////////////////////////////////////////////////////////////////////////////////////////////////
    75 #undef prefix_
    76 
    77 
    78 // Local Variables:
    79 // mode: c++
    80 // fill-column: 100
    81 // c-file-style: "senf"
    82 // indent-tabs-mode: nil
    83 // ispell-local-dictionary: "american"
    84 // compile-command: "scons -u test"
    85 // comment-column: 40
    86 // End: