-/* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2007-2016. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "surf/ns3/ns3_simulator.h"
+#include "src/surf/ns3/ns3_simulator.h"
+#include "xbt/dict.h"
+#include "xbt/log.h"
+#include "xbt/sysdep.h"
+
+static void delete_mysocket(void *p)
+{
+ delete (SgFlow *)p;
+}
+xbt_dict_t flowFromSock = xbt_dict_new_homogeneous(delete_mysocket);; // ns3::sock -> SgFlow
+
+static void receive_callback(ns3::Ptr<ns3::Socket> socket);
+static void send_callback(ns3::Ptr<ns3::Socket> sock, uint32_t txSpace);
+static void datasent_callback(ns3::Ptr<ns3::Socket> socket, uint32_t dataSent);
+static void StartFlow(ns3::Ptr<ns3::Socket> sock, const char *to, uint16_t port_number);
+
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ns3);
-// Constructor.
NS3Sim::NS3Sim(){
}
-//Destructor.
-NS3Sim::~NS3Sim(){
+
+static inline const char *transformSocketPtr (ns3::Ptr<ns3::Socket> localSocket)
+{
+ static char key[24];
+ std::stringstream sstream;
+ sstream << localSocket ;
+ sprintf(key,"%s",sstream.str().c_str());
+
+ return key;
+}
+
+SgFlow::SgFlow(uint32_t totalBytes, simgrid::surf::NetworkNS3Action * action) {
+ totalBytes_ = totalBytes;
+ remaining_ = totalBytes;
+ action_ = action;
+}
+/*
+ * This function creates a flow from src to dst
+ *
+ * Parameters
+ * src: node source
+ * dst: node destination
+ * port_number: The port number to use
+ * start: the time the communication start
+ * addr: ip address
+ * totalBytes: number of bytes to transmit
+ */
+void NS3Sim::create_flow_NS3(ns3::Ptr<ns3::Node> src, ns3::Ptr<ns3::Node> dst, uint16_t port_number,
+ double startTime, const char *ipAddr, uint32_t totalBytes,
+ simgrid::surf::NetworkNS3Action * action)
+{
+ ns3::PacketSinkHelper sink("ns3::TcpSocketFactory", ns3::InetSocketAddress (ns3::Ipv4Address::GetAny(), port_number));
+ sink.Install (dst);
+
+ ns3::Ptr<ns3::Socket> sock = ns3::Socket::CreateSocket (src, ns3::TcpSocketFactory::GetTypeId());
+
+ xbt_dict_set(flowFromSock, transformSocketPtr(sock), new SgFlow(totalBytes, action), NULL);
+
+ sock->Bind(ns3::InetSocketAddress(port_number));
+ XBT_DEBUG("Create flow starting to %fs + %fs = %fs",
+ startTime-ns3::Simulator::Now().GetSeconds(), ns3::Simulator::Now().GetSeconds(), startTime);
+
+ ns3::Simulator::Schedule (ns3::Seconds(startTime-ns3::Simulator::Now().GetSeconds()),
+ &StartFlow, sock, ipAddr, port_number);
+}
+
+void NS3Sim::simulator_start(double min){
+ if(min > 0.0)
+ ns3::Simulator::Stop(ns3::Seconds(min));
+ XBT_DEBUG("Start simulator '%f'",min);
+ ns3::Simulator::Run ();
+}
+
+static SgFlow* getFlowFromSocket(ns3::Ptr<ns3::Socket> socket) {
+ return (SgFlow*)xbt_dict_get_or_null(flowFromSock, transformSocketPtr(socket));
+}
+
+static void receive_callback(ns3::Ptr<ns3::Socket> socket){
+ SgFlow* flow = getFlowFromSocket(socket);
+
+ if (flow->finished_ == false){
+ flow->finished_ = true;
+ XBT_DEBUG("recv_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_);
+ XBT_DEBUG("Stop simulator at %f seconds", ns3::Simulator::Now().GetSeconds());
+ ns3::Simulator::Stop(ns3::Seconds(0.0));
+ ns3::Simulator::Run();
+ }
+}
+
+static void send_callback(ns3::Ptr<ns3::Socket> sock, uint32_t txSpace){
+ SgFlow* flow = getFlowFromSocket(sock);
+
+ if (flow->remaining_ == 0) // all data was already buffered (and socket was already closed)
+ return;
+
+ uint8_t *data = (uint8_t*)malloc(sizeof(uint8_t)*txSpace);
+
+ while (flow->bufferedBytes_ < flow->totalBytes_ && sock->GetTxAvailable () > 0) {
+
+ uint32_t toWrite = std::min ({flow->remaining_, txSpace, sock->GetTxAvailable ()});
+ int amountSent = sock->Send (data, toWrite, 0);
+
+ if(amountSent < 0)
+ return;
+ flow->bufferedBytes_ += amountSent;
+ flow->remaining_ -= amountSent;
+
+ XBT_DEBUG("send_cb of F[%p, %p, %d] (%d/%d) %d buffered", flow, flow->action_, flow->totalBytes_,
+ flow->remaining_, flow->totalBytes_, amountSent);
+ }
+ free(data);
+
+ if ((flow->bufferedBytes_) >= flow->totalBytes_)
+ sock->Close();
+}
+
+static void datasent_callback(ns3::Ptr<ns3::Socket> socket, uint32_t dataSent){
+ SgFlow* flow = getFlowFromSocket(socket);
+ flow->sentBytes_ += dataSent;
+ XBT_DEBUG("datasent_cb of F[%p, %p, %d] %d sent", flow, flow->action_, flow->totalBytes_, dataSent);
+}
+
+static void normalClose_callback(ns3::Ptr<ns3::Socket> socket){
+ SgFlow* flow = getFlowFromSocket(socket);
+ XBT_DEBUG("normalClose_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_);
+ receive_callback (socket);
+}
+
+static void errorClose_callback(ns3::Ptr<ns3::Socket> socket){
+ SgFlow* flow = getFlowFromSocket(socket);
+ XBT_DEBUG("errorClose_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_);
+ xbt_die("NS3: a socket was closed anormally");
+}
+
+static void succeededConnect_callback(ns3::Ptr<ns3::Socket> socket){
+ SgFlow* flow = getFlowFromSocket(socket);
+ XBT_DEBUG("succeededConnect_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_);
+}
+
+static void failedConnect_callback(ns3::Ptr<ns3::Socket> socket){
+ SgFlow* mysocket = getFlowFromSocket(socket);
+ XBT_DEBUG("failedConnect_cb of F[%p, %p, %d]", mysocket, mysocket->action_, mysocket->totalBytes_);
+ xbt_die("NS3: a socket failed to connect");
+}
+
+static void StartFlow(ns3::Ptr<ns3::Socket> sock, const char *to, uint16_t port_number)
+{
+ ns3::InetSocketAddress serverAddr (to, port_number);
+
+ sock->Connect(serverAddr);
+ sock->SetSendCallback (MakeCallback (&send_callback));
+ sock->SetRecvCallback (MakeCallback (&receive_callback));
+ sock->SetDataSentCallback (MakeCallback (&datasent_callback));
+ sock->SetConnectCallback (MakeCallback (&succeededConnect_callback), MakeCallback (&failedConnect_callback));
+ sock->SetCloseCallbacks (MakeCallback (&normalClose_callback), MakeCallback (&errorClose_callback));
+
+ SgFlow* flow = getFlowFromSocket(sock);
+ XBT_DEBUG("startFlow_cb of F[%p, %p, %d] dest=%s port=%d", flow, flow->action_, flow->totalBytes_, to, port_number);
}
