1 /* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "src/surf/ns3/ns3_simulator.h"
9 #include "xbt/sysdep.h"
13 xbt_dict_t flowFromSock = xbt_dict_new_homogeneous([](void *p) {
15 }); // ns3::sock -> SgFlow
17 static void receive_callback(ns3::Ptr<ns3::Socket> socket);
18 static void send_callback(ns3::Ptr<ns3::Socket> sock, uint32_t txSpace);
19 static void datasent_callback(ns3::Ptr<ns3::Socket> socket, uint32_t dataSent);
21 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ns3);
23 SgFlow::SgFlow(uint32_t totalBytes, simgrid::surf::NetworkNS3Action* action)
25 totalBytes_ = totalBytes;
26 remaining_ = totalBytes;
30 static SgFlow* getFlowFromSocket(ns3::Ptr<ns3::Socket> socket)
32 return (SgFlow*)xbt_dict_get_or_null(flowFromSock, transformSocketPtr(socket));
35 static void receive_callback(ns3::Ptr<ns3::Socket> socket)
37 SgFlow* flow = getFlowFromSocket(socket);
39 if (flow->finished_ == false) {
40 flow->finished_ = true;
41 XBT_DEBUG("recv_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_);
42 XBT_DEBUG("Stop simulator at %f seconds", ns3::Simulator::Now().GetSeconds());
43 ns3::Simulator::Stop(ns3::Seconds(0.0));
44 ns3::Simulator::Run();
48 static void send_callback(ns3::Ptr<ns3::Socket> sock, uint32_t txSpace)
50 SgFlow* flow = getFlowFromSocket(sock);
52 if (flow->remaining_ == 0) // all data was already buffered (and socket was already closed)
55 uint8_t* data = (uint8_t*)malloc(sizeof(uint8_t) * txSpace);
57 while (flow->bufferedBytes_ < flow->totalBytes_ && sock->GetTxAvailable() > 0) {
59 uint32_t toWrite = std::min({flow->remaining_, txSpace, sock->GetTxAvailable()});
60 int amountSent = sock->Send(data, toWrite, 0);
64 flow->bufferedBytes_ += amountSent;
65 flow->remaining_ -= amountSent;
67 XBT_DEBUG("send_cb of F[%p, %p, %d] (%d/%d) %d buffered", flow, flow->action_, flow->totalBytes_, flow->remaining_,
68 flow->totalBytes_, amountSent);
72 if ((flow->bufferedBytes_) >= flow->totalBytes_)
76 static void datasent_callback(ns3::Ptr<ns3::Socket> socket, uint32_t dataSent)
78 SgFlow* flow = getFlowFromSocket(socket);
79 flow->sentBytes_ += dataSent;
80 XBT_DEBUG("datasent_cb of F[%p, %p, %d] %d sent", flow, flow->action_, flow->totalBytes_, dataSent);
83 static void normalClose_callback(ns3::Ptr<ns3::Socket> socket)
85 SgFlow* flow = getFlowFromSocket(socket);
86 XBT_DEBUG("normalClose_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_);
87 receive_callback(socket);
90 static void errorClose_callback(ns3::Ptr<ns3::Socket> socket)
92 SgFlow* flow = getFlowFromSocket(socket);
93 XBT_DEBUG("errorClose_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_);
94 xbt_die("NS3: a socket was closed anormally");
97 static void succeededConnect_callback(ns3::Ptr<ns3::Socket> socket)
99 SgFlow* flow = getFlowFromSocket(socket);
100 XBT_DEBUG("succeededConnect_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_);
103 static void failedConnect_callback(ns3::Ptr<ns3::Socket> socket)
105 SgFlow* mysocket = getFlowFromSocket(socket);
106 XBT_DEBUG("failedConnect_cb of F[%p, %p, %d]", mysocket, mysocket->action_, mysocket->totalBytes_);
107 xbt_die("NS3: a socket failed to connect");
110 void StartFlow(ns3::Ptr<ns3::Socket> sock, const char* to, uint16_t port_number)
112 ns3::InetSocketAddress serverAddr(to, port_number);
114 sock->Connect(serverAddr);
115 sock->SetSendCallback(MakeCallback(&send_callback));
116 sock->SetRecvCallback(MakeCallback(&receive_callback));
117 sock->SetDataSentCallback(MakeCallback(&datasent_callback));
118 sock->SetConnectCallback(MakeCallback(&succeededConnect_callback), MakeCallback(&failedConnect_callback));
119 sock->SetCloseCallbacks(MakeCallback(&normalClose_callback), MakeCallback(&errorClose_callback));
121 SgFlow* flow = getFlowFromSocket(sock);
122 XBT_DEBUG("startFlow_cb of F[%p, %p, %d] dest=%s port=%d", flow, flow->action_, flow->totalBytes_, to, port_number);