+++ /dev/null
-/* Copyright (c) 2007-2019. 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 "src/surf/ns3/ns3_simulator.hpp"
-#include "xbt/log.h"
-#include "xbt/sysdep.h"
-
-#include <ns3/ipv4-address-helper.h>
-#include <ns3/point-to-point-helper.h>
-
-#include <algorithm>
-
-std::map<std::string, SgFlow*> flow_from_sock; // ns3::sock -> SgFlow
-
-static void receive_callback(ns3::Ptr<ns3::Socket> socket);
-static void datasent_cb(ns3::Ptr<ns3::Socket> socket, uint32_t dataSent);
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ns3);
-
-SgFlow::SgFlow(uint32_t totalBytes, simgrid::kernel::resource::NetworkNS3Action* action)
-{
- total_bytes_ = totalBytes;
- remaining_ = totalBytes;
- action_ = action;
-}
-
-static SgFlow* getFlowFromSocket(ns3::Ptr<ns3::Socket> socket)
-{
- auto it = flow_from_sock.find(transform_socket_ptr(socket));
- return (it == flow_from_sock.end()) ? nullptr : it->second;
-}
-
-static void receive_callback(ns3::Ptr<ns3::Socket> socket)
-{
- SgFlow* flow = getFlowFromSocket(socket);
- XBT_DEBUG("received on F[%p, total: %u, remain: %u]", flow, flow->total_bytes_, flow->remaining_);
-
- if (flow->finished_ == false) {
- flow->finished_ = true;
- XBT_DEBUG("recv_cb of F[%p, %p, %u]", flow, flow->action_, flow->total_bytes_);
- XBT_DEBUG("Stop simulator at %f seconds", ns3::Simulator::Now().GetSeconds());
- ns3::Simulator::Stop(ns3::Seconds(0.0));
- ns3::Simulator::Run();
- }
-}
-
-static void send_cb(ns3::Ptr<ns3::Socket> sock, uint32_t txSpace)
-{
- SgFlow* flow = getFlowFromSocket(sock);
- XBT_DEBUG("Asked to write on F[%p, total: %u, remain: %u]", flow, flow->total_bytes_, flow->remaining_);
-
- if (flow->remaining_ == 0) // all data was already buffered (and socket was already closed)
- return;
-
- /* While not all is buffered and there remain space in the buffers */
- while (flow->buffered_bytes_ < flow->total_bytes_ && sock->GetTxAvailable() > 0) {
-
- // Send at most 1040 bytes (data size in a TCP packet), as ns-3 seems to not split correctly by itself
- uint32_t toWrite = std::min({flow->remaining_, sock->GetTxAvailable(), std::uint32_t(1040)});
- if (toWrite == 0) { // buffer full
- XBT_DEBUG("%f: buffer full on flow %p (still %u to go)", ns3::Simulator::Now().GetSeconds(), flow,
- flow->remaining_);
- return;
- }
- int amountSent = sock->Send(0, toWrite, 0);
-
- xbt_assert(amountSent > 0, "Since TxAvailable>0, amountSent should also >0");
- flow->buffered_bytes_ += amountSent;
- flow->remaining_ -= amountSent;
-
- XBT_DEBUG("%f: sent %d bytes over flow %p (still %u to go)", ns3::Simulator::Now().GetSeconds(), amountSent, flow,
- flow->remaining_);
- }
-
- if (flow->buffered_bytes_ >= flow->total_bytes_)
- sock->Close();
-}
-
-static void datasent_cb(ns3::Ptr<ns3::Socket> socket, uint32_t dataSent)
-{
- /* The tracing wants to know */
- SgFlow* flow = getFlowFromSocket(socket);
- flow->sent_bytes_ += dataSent;
- XBT_DEBUG("datasent_cb of F[%p, %p, %u] %u sent (%u total)", flow, flow->action_, flow->total_bytes_, dataSent,
- flow->sent_bytes_);
-}
-
-static void normalClose_callback(ns3::Ptr<ns3::Socket> socket)
-{
- SgFlow* flow = getFlowFromSocket(socket);
- XBT_DEBUG("normalClose_cb of F[%p, %p] total: %u; sent: %u", flow, flow->action_, flow->total_bytes_,
- flow->sent_bytes_);
- // xbt_assert(flow->total_bytes_ == flow->sent_bytes_,
- // "total_bytes (=%u) is not sent_bytes(=%u)", flow->total_bytes_ , flow->sent_bytes_);
- // xbt_assert(flow->remaining_ == 0, "Remaining is not 0 but %u", flow->remaining_);
- receive_callback(socket);
-}
-
-static void errorClose_callback(ns3::Ptr<ns3::Socket> socket)
-{
- SgFlow* flow = getFlowFromSocket(socket);
- XBT_DEBUG("errorClose_cb of F[%p, %p, %u]", flow, flow->action_, flow->total_bytes_);
- xbt_die("ns-3: 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, %u]", flow, flow->action_, flow->total_bytes_);
-}
-
-static void failedConnect_callback(ns3::Ptr<ns3::Socket> socket)
-{
- SgFlow* mysocket = getFlowFromSocket(socket);
- XBT_DEBUG("failedConnect_cb of F[%p, %p, %u]", mysocket, mysocket->action_, mysocket->total_bytes_);
- xbt_die("ns-3: a socket failed to connect");
-}
-
-void start_flow(ns3::Ptr<ns3::Socket> sock, const char* to, uint16_t port_number)
-{
- SgFlow* flow = getFlowFromSocket(sock);
- ns3::InetSocketAddress serverAddr(to, port_number);
-
- sock->Connect(serverAddr);
- // tell the tcp implementation to call send_cb again
- // if we blocked and new tx buffer space becomes available
- sock->SetSendCallback(MakeCallback(&send_cb));
- // Notice when the send is over
- sock->SetRecvCallback(MakeCallback(&receive_callback));
- // Notice when we actually sent some data (mostly for the TRACING module)
- sock->SetDataSentCallback(MakeCallback(&datasent_cb));
-
- XBT_DEBUG("startFlow of F[%p, %p, %u] dest=%s port=%d", flow, flow->action_, flow->total_bytes_, to, port_number);
-
- sock->SetConnectCallback(MakeCallback(&succeededConnect_callback), MakeCallback(&failedConnect_callback));
- sock->SetCloseCallbacks(MakeCallback(&normalClose_callback), MakeCallback(&errorClose_callback));
-}
