* under the terms of the license (GNU LGPL) which comes with this package. */
#include "surf/ns3/ns3_simulator.h"
+#include "xbt/dict.h"
+#include "xbt/log.h"
+#include "xbt/sysdep.h"
+
+using namespace ns3;
+using namespace std;
+
+xbt_dict_t dict_socket = NULL;
+
+NS3Sim SimulatorNS3;
+static char socket_key[24];
+
+static void receive_callback(Ptr<Socket> localSocket);
+static void send_callback(Ptr<Socket> localSocket, uint32_t txSpace);
+static void datasent_callback(Ptr<Socket> localSocket, uint32_t dataSent);
+static void StartFlow(Ptr<Socket> sock,
+ const char *to,
+ uint16_t port_number);
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simulator_ns3, surf,
+ "Logging specific to the SURF network NS3 module");
// Constructor.
NS3Sim::NS3Sim(){
//Destructor.
NS3Sim::~NS3Sim(){
}
+
+static XBT_INLINE void transformSocketPtr (Ptr<Socket> localSocket){
+ std::stringstream sstream;
+ sstream << localSocket ;
+ std::string s = sstream.str();
+ sprintf(socket_key,"%s",s.c_str());
+}
+
+/*
+ * 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)
+{
+ if(!dict_socket) dict_socket = xbt_dict_new_homogeneous(free);
+
+ PacketSinkHelper sink ("ns3::TcpSocketFactory",
+ InetSocketAddress (Ipv4Address::GetAny(),
+ port_number));
+ sink.Install (dst);
+
+ Ptr<Socket> sock = Socket::CreateSocket (src,
+ TcpSocketFactory::GetTypeId());
+
+ MySocket *mysocket = new MySocket();
+ mysocket->totalBytes = totalBytes;
+ mysocket->remaining = totalBytes;
+ mysocket->bufferedBytes = 0;
+ mysocket->sentBytes = 0;
+ mysocket->finished = 0;
+ mysocket->action = action;
+
+ transformSocketPtr(sock);
+ xbt_dict_set(dict_socket,socket_key, mysocket,NULL);
+
+ sock->Bind(InetSocketAddress(port_number));
+ XBT_DEBUG("Create flow starting to %fs + %fs = %fs",start-ns3_time(), ns3_time(), start);
+
+ Simulator::Schedule (Seconds(start-ns3_time()),&StartFlow, sock, addr, port_number);
+// Simulator::Schedule (Seconds(0.0),&StartFlow, sock, addr, port_number);
+
+}
+
+void* NS3Sim::get_action_from_socket(void *socket){
+ return ((MySocket *)socket)->action;
+}
+
+char NS3Sim::get_finished(void *socket){
+ return ((MySocket *)socket)->finished;
+}
+
+double NS3Sim::get_remains_from_socket(void *socket){
+ return ((MySocket *)socket)->remaining;
+}
+
+double NS3Sim::get_sent_from_socket(void *socket){
+ return ((MySocket *)socket)->sentBytes;
+}
+
+void NS3Sim::simulator_start(double min){
+ if(min > 0.0)
+ Simulator::Stop(Seconds(min));
+ XBT_DEBUG("Start simulator");
+ Simulator::Run ();
+}
+
+static MySocket* get_my_socket(Ptr<Socket> localSocket) {
+ transformSocketPtr(localSocket);
+ return (MySocket*)xbt_dict_get_or_null(dict_socket,socket_key);
+}
+
+static void receive_callback(Ptr<Socket> localSocket){
+ MySocket* mysocket = get_my_socket(localSocket);
+
+ if (mysocket->finished == 0){
+ mysocket->finished = 1;
+ XBT_DEBUG("recv_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
+ XBT_DEBUG("Stop simulator at %f seconds", Simulator::Now().GetSeconds());
+ Simulator::Stop(Seconds(0.0));
+ Simulator::Run();
+ }
+}
+
+static void send_callback(Ptr<Socket> localSocket, uint32_t txSpace){
+ MySocket* mysocket = get_my_socket(localSocket);
+
+ if (mysocket->remaining == 0){
+ //all data was already buffered (and socket was already closed), just return
+ return;
+ }
+
+ uint8_t *data = (uint8_t*)malloc(sizeof(uint8_t)*txSpace);
+
+ while (mysocket->bufferedBytes < mysocket->totalBytes
+ && localSocket->GetTxAvailable () > 0)
+ {
+ uint32_t toWrite = min ((mysocket->remaining), txSpace);
+ toWrite = min (toWrite, localSocket->GetTxAvailable ());
+ int amountSent = localSocket->Send (data, toWrite, 0);
+
+ if(amountSent < 0)
+ return;
+ (mysocket->bufferedBytes) += amountSent;
+ (mysocket->remaining) -= amountSent;
+ XBT_DEBUG("send_cb of F[%p, %p, %d] (%d/%d) %d buffered", mysocket, mysocket->action, mysocket->totalBytes, mysocket->remaining, mysocket->totalBytes, amountSent);
+
+ }
+
+ free(data);
+
+ if ((mysocket->bufferedBytes) >= mysocket->totalBytes){
+ localSocket->Close();
+ }
+}
+
+static void datasent_callback(Ptr<Socket> localSocket, uint32_t dataSent){
+ MySocket* mysocket = get_my_socket(localSocket);
+ mysocket->sentBytes += dataSent;
+ XBT_DEBUG("datasent_cb of F[%p, %p, %d] %d sent", mysocket, mysocket->action, mysocket->totalBytes, dataSent);
+}
+
+static void normalClose_callback(Ptr<Socket> localSocket){
+ MySocket* mysocket = get_my_socket(localSocket);
+ XBT_DEBUG("normalClose_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
+ receive_callback (localSocket);
+}
+
+static void errorClose_callback(Ptr<Socket> localSocket){
+ MySocket* mysocket = get_my_socket(localSocket);
+ XBT_DEBUG("errorClose_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
+ xbt_die("NS3: a socket was closed anormally");
+}
+
+static void succeededConnect_callback(Ptr<Socket> localSocket){
+ MySocket* mysocket = get_my_socket(localSocket);
+ XBT_DEBUG("succeededConnect_cb of F[%p, %p, %d]", mysocket, mysocket->action, mysocket->totalBytes);
+}
+
+static void failedConnect_callback(Ptr<Socket> localSocket){
+ MySocket* mysocket = get_my_socket(localSocket);
+ 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(Ptr<Socket> sock,
+ const char *to,
+ uint16_t port_number)
+{
+ 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));
+
+ MySocket* mysocket = get_my_socket(sock);
+ XBT_DEBUG("startFlow_cb of F[%p, %p, %d] dest=%s port=%d", mysocket, mysocket->action, mysocket->totalBytes, to, port_number);
+}
