src/surf/network_interface.cpp

   1 /* Copyright (c) 2013-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "network_interface.hpp"
   8 #include "simgrid/sg_config.h"
   9
  10 #ifndef NETWORK_INTERFACE_CPP_
  11 #define NETWORK_INTERFACE_CPP_
  12
  13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
  14                                 "Logging specific to the SURF network module");
  15
  16 /*************
  17  * Callbacks *
  18  *************/
  19
  20 surf_callback(void, NetworkLinkPtr) networkLinkCreatedCallbacks;
  21 surf_callback(void, NetworkLinkPtr) networkLinkDestructedCallbacks;
  22 surf_callback(void, NetworkLinkPtr, e_surf_resource_state_t, e_surf_resource_state_t) networkLinkStateChangedCallbacks;
  23 surf_callback(void, NetworkActionPtr, e_surf_action_state_t, e_surf_action_state_t) networkActionStateChangedCallbacks;
  24 surf_callback(void, NetworkActionPtr, RoutingEdgePtr src, RoutingEdgePtr dst, double size, double rate) networkCommunicateCallbacks;
  25
  26 void netlink_parse_init(sg_platf_link_cbarg_t link){
  27   if (link->policy == SURF_LINK_FULLDUPLEX) {
  28     char *link_id;
  29     link_id = bprintf("%s_UP", link->id);
  30     surf_network_model->createNetworkLink(link_id,
  31                       link->bandwidth,
  32                       link->bandwidth_trace,
  33                       link->latency,
  34                       link->latency_trace,
  35                       link->state,
  36                       link->state_trace, link->policy, link->properties);
  37     xbt_free(link_id);
  38     link_id = bprintf("%s_DOWN", link->id);
  39     surf_network_model->createNetworkLink(link_id,
  40                       link->bandwidth,
  41                       link->bandwidth_trace,
  42                       link->latency,
  43                       link->latency_trace,
  44                       link->state,
  45                       link->state_trace, link->policy, link->properties);
  46     xbt_free(link_id);
  47   } else {
  48   surf_network_model->createNetworkLink(link->id,
  49                       link->bandwidth,
  50                       link->bandwidth_trace,
  51                       link->latency,
  52                       link->latency_trace,
  53                       link->state,
  54                       link->state_trace, link->policy, link->properties);
  55   }
  56 }
  57
  58 void net_add_traces(){
  59   surf_network_model->addTraces();
  60 }
  61
  62 /*********
  63  * Model *
  64  *********/
  65
  66 NetworkModelPtr surf_network_model = NULL;
  67
  68 double NetworkModel::latencyFactor(double /*size*/) {
  69   return sg_latency_factor;
  70 }
  71
  72 double NetworkModel::bandwidthFactor(double /*size*/) {
  73   return sg_bandwidth_factor;
  74 }
  75
  76 double NetworkModel::bandwidthConstraint(double rate, double /*bound*/, double /*size*/) {
  77   return rate;
  78 }
  79
  80 /************
  81  * Resource *
  82  ************/
  83
  84 NetworkLink::NetworkLink(NetworkModelPtr model, const char *name, xbt_dict_t props)
  85 : Resource(model, name, props)
  86 , p_latEvent(NULL)
  87 {
  88   surf_callback_emit(networkLinkCreatedCallbacks, this);
  89 }
  90
  91 NetworkLink::NetworkLink(NetworkModelPtr model, const char *name, xbt_dict_t props,
  92                                  lmm_constraint_t constraint,
  93                              tmgr_history_t history,
  94                              tmgr_trace_t state_trace)
  95 : Resource(model, name, props, constraint),
  96   p_latEvent(NULL)
  97 {
  98   surf_callback_emit(networkLinkCreatedCallbacks, this);
  99   if (state_trace)
 100     p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
 101 }
 102
 103 NetworkLink::~NetworkLink()
 104 {
 105   surf_callback_emit(networkLinkDestructedCallbacks, this);
 106 }
 107
 108 bool NetworkLink::isUsed()
 109 {
 110   return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
 111 }
 112
 113 double NetworkLink::getLatency()
 114 {
 115   return m_latCurrent;
 116 }
 117
 118 double NetworkLink::getBandwidth()
 119 {
 120   return p_power.peak * p_power.scale;
 121 }
 122
 123 bool NetworkLink::isShared()
 124 {
 125   return lmm_constraint_is_shared(getConstraint());
 126 }
 127
 128 void NetworkLink::setState(e_surf_resource_state_t state){
 129   e_surf_resource_state_t old = Resource::getState();
 130   Resource::setState(state);
 131   surf_callback_emit(networkLinkStateChangedCallbacks, this, old, state);
 132 }
 133
 134 /**********
 135  * Action *
 136  **********/
 137
 138 void NetworkAction::setState(e_surf_action_state_t state){
 139   e_surf_action_state_t old = getState();
 140   Action::setState(state);
 141   surf_callback_emit(networkActionStateChangedCallbacks, this, old, state);
 142 }
 143
 144 #endif /* NETWORK_INTERFACE_CPP_ */