1 /* Copyright (c) 2007-2014. The SimGrid Team.
2 * All rights reserved. */
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. */
7 #include "src/surf/ns3/ns3_simulator.h"
10 #include "xbt/sysdep.h"
15 xbt_dict_t dict_socket = NULL;
18 static char socket_key[24];
20 static void receive_callback(Ptr<Socket> localSocket);
21 static void send_callback(Ptr<Socket> localSocket, uint32_t txSpace);
22 static void datasent_callback(Ptr<Socket> localSocket, uint32_t dataSent);
23 static void StartFlow(Ptr<Socket> sock, const char *to, uint16_t port_number);
25 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ns3);
32 static inline void transformSocketPtr (Ptr<Socket> localSocket)
34 std::stringstream sstream;
35 sstream << localSocket ;
36 std::string s = sstream.str();
37 sprintf(socket_key,"%s",s.c_str());
40 static void delete_mysocket(void *p)
42 MySocket *sock = (MySocket *)p;
47 * This function creates a flow from src to dst
51 * dst: node destination
52 * port_number: The port number to use
53 * start: the time the communication start
55 * totalBytes: number of bytes to transmit
57 void NS3Sim::create_flow_NS3(
67 dict_socket = xbt_dict_new_homogeneous(delete_mysocket);
69 PacketSinkHelper sink ("ns3::TcpSocketFactory",
70 InetSocketAddress (Ipv4Address::GetAny(),
74 Ptr<Socket> sock = Socket::CreateSocket (src, TcpSocketFactory::GetTypeId());
76 MySocket *mysocket = new MySocket();
77 mysocket->totalBytes = totalBytes;
78 mysocket->remaining = totalBytes;
79 mysocket->bufferedBytes = 0;
80 mysocket->sentBytes = 0;
81 mysocket->finished = 0;
82 mysocket->action = action;
84 transformSocketPtr(sock);
85 xbt_dict_set(dict_socket,socket_key, mysocket,NULL);
87 sock->Bind(InetSocketAddress(port_number));
88 XBT_DEBUG("Create flow starting to %fs + %fs = %fs",start-ns3::Simulator::Now().GetSeconds(), ns3::Simulator::Now().GetSeconds(), start);
90 Simulator::Schedule (Seconds(start-ns3::Simulator::Now().GetSeconds()),&StartFlow, sock, addr, port_number);
93 void NS3Sim::simulator_start(double min){
95 Simulator::Stop(Seconds(min));
96 XBT_DEBUG("Start simulator '%f'",min);
100 static MySocket* get_my_socket(Ptr<Socket> localSocket) {
101 transformSocketPtr(localSocket);
102 return (MySocket*)xbt_dict_get_or_null(dict_socket,socket_key);
105 static void receive_callback(Ptr<Socket> localSocket){
106 MySocket* mysocket = get_my_socket(localSocket);
108 if (mysocket->finished == 0){
109 mysocket->finished = 1;
110 XBT_DEBUG("recv_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
111 XBT_DEBUG("Stop simulator at %f seconds", Simulator::Now().GetSeconds());
112 Simulator::Stop(Seconds(0.0));
117 static void send_callback(Ptr<Socket> localSocket, uint32_t txSpace){
118 MySocket* mysocket = get_my_socket(localSocket);
120 if (mysocket->remaining == 0){
121 // all data was already buffered (and socket was already closed), just return
125 uint8_t *data = (uint8_t*)malloc(sizeof(uint8_t)*txSpace);
127 while (mysocket->bufferedBytes < mysocket->totalBytes
128 && localSocket->GetTxAvailable () > 0)
130 uint32_t toWrite = min ((mysocket->remaining), txSpace);
131 toWrite = min (toWrite, localSocket->GetTxAvailable ());
132 int amountSent = localSocket->Send (data, toWrite, 0);
136 (mysocket->bufferedBytes) += amountSent;
137 (mysocket->remaining) -= amountSent;
138 XBT_DEBUG("send_cb of F[%p, %p, %d] (%d/%d) %d buffered", mysocket, mysocket->action, mysocket->totalBytes, mysocket->remaining, mysocket->totalBytes, amountSent);
144 if ((mysocket->bufferedBytes) >= mysocket->totalBytes)
145 localSocket->Close();
148 static void datasent_callback(Ptr<Socket> localSocket, uint32_t dataSent){
149 MySocket* mysocket = get_my_socket(localSocket);
150 mysocket->sentBytes += dataSent;
151 XBT_DEBUG("datasent_cb of F[%p, %p, %d] %d sent", mysocket, mysocket->action, mysocket->totalBytes, dataSent);
154 static void normalClose_callback(Ptr<Socket> localSocket){
155 MySocket* mysocket = get_my_socket(localSocket);
156 XBT_DEBUG("normalClose_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
157 receive_callback (localSocket);
160 static void errorClose_callback(Ptr<Socket> localSocket){
161 MySocket* mysocket = get_my_socket(localSocket);
162 XBT_DEBUG("errorClose_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
163 xbt_die("NS3: a socket was closed anormally");
166 static void succeededConnect_callback(Ptr<Socket> localSocket){
167 MySocket* mysocket = get_my_socket(localSocket);
168 XBT_DEBUG("succeededConnect_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
171 static void failedConnect_callback(Ptr<Socket> localSocket){
172 MySocket* mysocket = get_my_socket(localSocket);
173 XBT_DEBUG("failedConnect_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
174 xbt_die("NS3: a socket failed to connect");
177 static void StartFlow(Ptr<Socket> sock, const char *to, uint16_t port_number)
179 InetSocketAddress serverAddr (to, port_number);
181 sock->Connect(serverAddr);
182 sock->SetSendCallback (MakeCallback (&send_callback));
183 sock->SetRecvCallback (MakeCallback (&receive_callback));
184 sock->SetDataSentCallback (MakeCallback (&datasent_callback));
185 sock->SetConnectCallback (MakeCallback (&succeededConnect_callback), MakeCallback (&failedConnect_callback));
186 sock->SetCloseCallbacks (MakeCallback (&normalClose_callback), MakeCallback (&errorClose_callback));
188 MySocket* mysocket = get_my_socket(sock);
189 XBT_DEBUG("startFlow_cb of F[%p, %p, %d] dest=%s port=%d", mysocket, mysocket->action, mysocket->totalBytes, to, port_number);