PPI/Connectors.cc

   1 // $Id$
   2 //
   3 // Copyright (C) 2007
   4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
   5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
   6 //     Stefan Bund <g0dil@berlios.de>
   7 //
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 2 of the License, or
  11 // (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the
  20 // Free Software Foundation, Inc.,
  21 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22
  23 /** \file
  24     \brief Connectors non-inline non-template implementation */
  25
  26 #include "Connectors.hh"
  27 //#include "Connectors.ih"
  28
  29 // Custom includes
  30 #include "Route.hh"
  31
  32 //#include "Connectors.mpp"
  33 #define prefix_
  34 ///////////////////////////////cc.p////////////////////////////////////////
  35
  36 ///////////////////////////////////////////////////////////////////////////
  37 // senf::ppi::connector::PassiveConnector
  38
  39 ////////////////////////////////////////
  40 // private members
  41
  42 prefix_ void senf::ppi::connector::PassiveConnector::notifyUnthrottle()
  43 {
  44     if (throttled() && !nativeThrottled_) {
  45         Routes::const_iterator i (routes_.begin());
  46         Routes::const_iterator const i_end (routes_.end());
  47         for (; i != i_end; ++i)
  48             if ((*i)->throttled())
  49                 break;
  50         if (i == i_end) {
  51             remoteThrottled_ = false;
  52             emitUnthrottle();
  53         }
  54     }
  55     else
  56         remoteThrottled_ = false;
  57 }
  58
  59 ///////////////////////////////////////////////////////////////////////////
  60 // senf::ppi::connector::ActiveConnector
  61
  62 ////////////////////////////////////////
  63 // private members
  64
  65 prefix_ void senf::ppi::connector::ActiveConnector::notifyThrottle()
  66 {
  67     if (throttleCallback_)
  68         throttleCallback_();
  69     NotifyRoutes::const_iterator i (notifyRoutes_.begin());
  70     NotifyRoutes::const_iterator const i_end (notifyRoutes_.end());
  71     for (; i != i_end; ++i)
  72         (*i)->notifyThrottle();
  73 }
  74
  75 prefix_ void senf::ppi::connector::ActiveConnector::notifyUnthrottle()
  76 {
  77     if (unthrottleCallback_)
  78         unthrottleCallback_();
  79     NotifyRoutes::const_iterator i (notifyRoutes_.begin());
  80     NotifyRoutes::const_iterator const i_end (notifyRoutes_.end());
  81     for (; i != i_end; ++i)
  82         (*i)->notifyUnthrottle();
  83 }
  84
  85 prefix_ void senf::ppi::connector::ActiveConnector::registerRoute(ForwardingRoute & route)
  86 {
  87     notifyRoutes_.push_back(&route);
  88 }
  89
  90 ///////////////////////////////////////////////////////////////////////////
  91 // senf::ppi::connector::InputConnector
  92
  93 prefix_ senf::Packet senf::ppi::connector::InputConnector::operator()()
  94 {
  95     if (empty())
  96         v_requestEvent();
  97     Packet p;
  98     if (! empty()) {
  99         p = peek();
 100         queue_.pop_back();
 101         v_dequeueEvent();
 102     }
 103     return p;
 104 }
 105
 106 ////////////////////////////////////////
 107 // private members
 108
 109 prefix_ void senf::ppi::connector::InputConnector::v_requestEvent()
 110 {}
 111
 112 prefix_ void senf::ppi::connector::InputConnector::v_enqueueEvent()
 113 {}
 114
 115 prefix_ void senf::ppi::connector::InputConnector::v_dequeueEvent()
 116 {}
 117
 118 ///////////////////////////////////////////////////////////////////////////
 119 // senf::ppi::connector::ActiveInput
 120
 121 ////////////////////////////////////////
 122 // private members
 123
 124 prefix_ void senf::ppi::connector::ActiveInput::v_requestEvent()
 125 {
 126     request();
 127 }
 128
 129 ///////////////////////////////////////////////////////////////////////////
 130 // senf::ppi::connector::PassiveInput
 131
 132 ////////////////////////////////////////
 133 // private members
 134
 135 prefix_ void senf::ppi::connector::PassiveInput::v_enqueueEvent()
 136 {
 137     emit();
 138     qdisc_->update(*this, QueueingDiscipline::ENQUEUE);
 139 }
 140
 141 prefix_ void senf::ppi::connector::PassiveInput::v_dequeueEvent()
 142 {
 143     qdisc_->update(*this, QueueingDiscipline::DEQUEUE);
 144 }
 145
 146 prefix_ void senf::ppi::connector::PassiveInput::v_unthrottleEvent()
 147 {
 148     size_type n (queueSize());
 149     while (n) {
 150         emit();
 151         size_type nn (queueSize());
 152         if (n == nn)
 153             break;
 154         n = nn;
 155     }
 156 }
 157
 158 ///////////////////////////////cc.e////////////////////////////////////////
 159 #undef prefix_
 160 //#include "Connectors.mpp"
 161
 162 \f
 163 // Local Variables:
 164 // mode: c++
 165 // fill-column: 100
 166 // comment-column: 40
 167 // c-file-style: "senf"
 168 // indent-tabs-mode: nil
 169 // ispell-local-dictionary: "american"
 170 // compile-command: "scons -u test"
 171 // End: