-/* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2007-2017. 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"
-using namespace ns3;
-using namespace std;
+#include <algorithm>
-static const uint32_t writeSize = 1024; // limit the amout of data to write
-uint8_t data[writeSize];
-xbt_dict_t dict_socket = NULL;
+xbt_dict_t flowFromSock = xbt_dict_new_homogeneous([](void *p) {
+ delete (SgFlow*)p;
+}); // ns3::sock -> SgFlow
-NS3Sim SimulatorNS3;
+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 receive_callback(Ptr<Socket> localSocket);
-static void send_callback(Ptr<Socket> localSocket, uint32_t txSpace);
-static void StartFlow(Ptr<Socket> sock,
- const char *to,
- uint16_t port_number);
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ns3);
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simulator_ns3, surf,
- "Logging specific to the SURF network NS3 module");
-
-// Constructor.
-NS3Sim::NS3Sim(){
-}
-//Destructor.
-NS3Sim::~NS3Sim(){
+SgFlow::SgFlow(uint32_t totalBytes, simgrid::surf::NetworkNS3Action* action)
+{
+ totalBytes_ = totalBytes;
+ remaining_ = totalBytes;
+ action_ = action;
}
-/*
- * This function create 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(
- Ptr<Node> src,
- Ptr<Node> dst,
- uint16_t port_number,
- double start,
- const char *addr,
- uint32_t totalBytes,
- void * action)
+static SgFlow* getFlowFromSocket(ns3::Ptr<ns3::Socket> socket)
{
- if(!dict_socket) dict_socket = xbt_dict_new();
- PacketSinkHelper sink ("ns3::TcpSocketFactory", InetSocketAddress (Ipv4Address::GetAny(), port_number));
- sink.Install (dst);
- Ptr<Socket> sock = Socket::CreateSocket (src, TypeId::LookupByName ("ns3::TcpSocketFactory"));
- MySocket *mysocket = new MySocket();
- mysocket->totalBytes = totalBytes;
- mysocket->remaining = totalBytes;
- mysocket->last_amount_sent = 0;
- mysocket->bufferedBytes = 0;
- mysocket->sentBytes = 0;
- mysocket->finished = 0;
- mysocket->action = action;
- xbt_dict_set(dict_socket,(const char*)&sock, mysocket,NULL);
- sock->Bind(InetSocketAddress(port_number));
- Simulator::Schedule (Seconds(start),&StartFlow, sock, addr, port_number);
+ return (SgFlow*)xbt_dict_get_or_null(flowFromSock, transformSocketPtr(socket));
}
-void* NS3Sim::get_action_from_socket(void *socket){
- return ((MySocket *)socket)->action;
+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();
+ }
}
-char NS3Sim::get_finished(void *socket){
- return ((MySocket *)socket)->finished;
-}
+static void send_callback(ns3::Ptr<ns3::Socket> sock, uint32_t txSpace)
+{
+ SgFlow* flow = getFlowFromSocket(sock);
-double NS3Sim::get_remains_from_socket(void *socket){
- return ((MySocket *)socket)->remaining;
-}
+ if (flow->remaining_ == 0) // all data was already buffered (and socket was already closed)
+ return;
-double NS3Sim::get_last_amount_sent_from_socket(void *socket){
- return ((MySocket *)socket)->last_amount_sent;
-}
+ uint8_t* data = (uint8_t*)malloc(sizeof(uint8_t) * txSpace);
-void NS3Sim::reset_last_amount_sent_from_socket(void *socket){
- ((MySocket *)socket)->last_amount_sent = 0;
-}
+ 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);
-void NS3Sim::simulator_stop(double min){
- if(min > 0.0)
- Simulator::Stop(Seconds(min));
- else
- Simulator::Stop();
+ 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();
}
-void NS3Sim::simulator_start(void){
- XBT_DEBUG("Start simulator");
- Simulator::Run ();
+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 receive_callback(Ptr<Socket> localSocket){
- Address addr;
- localSocket->GetSockName (addr);
- InetSocketAddress iaddr = InetSocketAddress::ConvertFrom (addr);
- MySocket* mysocket = (MySocket*)xbt_dict_get_or_null(dict_socket,(char*)&localSocket);
- mysocket->finished = 1;
-
- //cout << "[" << Simulator::Now ().GetSeconds() << "] " << "Received [" << mysocket->totalBytes << "bytes], from: " << iaddr.GetIpv4 () << " port: " << iaddr.GetPort () << endl;
- std::stringstream sstream;
- sstream << Simulator::Now ().GetSeconds();
- std::string s = sstream.str();
- size_t size = s.size() + 1;
- char * time_sec = new char[ size ];
- strncpy( time_sec, s.c_str(), size );
- XBT_DEBUG("Stop simulator at %s seconds",time_sec);
- Simulator::Stop();
+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 send_callback(Ptr<Socket> localSocket, uint32_t txSpace){
-
- Address addr;
- localSocket->GetSockName (addr);
- InetSocketAddress iaddr = InetSocketAddress::ConvertFrom (addr);
- MySocket* mysocket = (MySocket*)xbt_dict_get_or_null(dict_socket,(char*)&localSocket);
- uint32_t totalBytes = mysocket->totalBytes;
- while ((mysocket->bufferedBytes) < totalBytes && localSocket->GetTxAvailable () > 0){
- uint32_t toWrite = min ((mysocket->remaining), writeSize);
- toWrite = min (toWrite, localSocket->GetTxAvailable ());
- int amountSent = localSocket->Send (&data[0], toWrite, 0);
-
- if(amountSent < 0)
- return;
-
- (mysocket->last_amount_sent) += amountSent;
- (mysocket->bufferedBytes) += amountSent;
- (mysocket->remaining) -= amountSent;
- //cout << "[" << Simulator::Now ().GetSeconds() << "] " << "Send one packet, remaining "<< mysocket->remaining << " bytes!" << endl;
- }
- if ((mysocket->bufferedBytes) >= totalBytes){
- localSocket->Close();
- }
+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 StartFlow(Ptr<Socket> sock,
- const char *to,
- uint16_t port_number)
+static void failedConnect_callback(ns3::Ptr<ns3::Socket> socket)
{
- InetSocketAddress serverAddr (to, port_number);
+ 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");
+}
- //cout << "[" << Simulator::Now().GetSeconds() << "] Starting flow to " << to << " using port " << port_number << endl;
+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->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);
}
