X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5b1bf4b927630226493504bec19ea7356f8e70ff..6c930c685c64eb5bcf2e73ba17bbeddc8fe19a74:/src/surf/ns3/ns3_simulator.cc diff --git a/src/surf/ns3/ns3_simulator.cc b/src/surf/ns3/ns3_simulator.cc index e7b3382097..e675094a85 100644 --- a/src/surf/ns3/ns3_simulator.cc +++ b/src/surf/ns3/ns3_simulator.cc @@ -1,5 +1,4 @@ -/* Copyright (c) 2007-2016. 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. */ @@ -9,107 +8,126 @@ #include "xbt/log.h" #include "xbt/sysdep.h" -static void delete_mysocket(void *p) -{ - delete (SgFlow *)p; -} -xbt_dict_t flowFromSock = xbt_dict_new_homogeneous(delete_mysocket);; // ns3::sock -> SgFlow +#include + +xbt_dict_t flowFromSock = xbt_dict_new_homogeneous([](void *p) { + delete (SgFlow*)p; +}); // ns3::sock -> SgFlow static void receive_callback(ns3::Ptr socket); -static void send_callback(ns3::Ptr sock, uint32_t txSpace); static void datasent_callback(ns3::Ptr socket, uint32_t dataSent); XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ns3); -SgFlow::SgFlow(uint32_t totalBytes, simgrid::surf::NetworkNS3Action * action) { +SgFlow::SgFlow(uint32_t totalBytes, simgrid::surf::NetworkNS3Action* action) +{ totalBytes_ = totalBytes; - remaining_ = totalBytes; - action_ = action; + remaining_ = totalBytes; + action_ = action; } -static SgFlow* getFlowFromSocket(ns3::Ptr socket) { - return (SgFlow*)xbt_dict_get_or_null(flowFromSock, transformSocketPtr(socket)); +static SgFlow* getFlowFromSocket(ns3::Ptr socket) +{ + return (SgFlow*)xbt_dict_get_or_null(flowFromSock, transformSocketPtr(socket)); } -static void receive_callback(ns3::Ptr socket){ +static void receive_callback(ns3::Ptr socket) +{ SgFlow* flow = getFlowFromSocket(socket); - if (flow->finished_ == false){ + if (flow->finished_ == false) { flow->finished_ = true; - XBT_DEBUG("recv_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_); + XBT_DEBUG("recv_cb of F[%p, %p, %u]", 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(); } } -static void send_callback(ns3::Ptr sock, uint32_t txSpace){ - SgFlow* flow = getFlowFromSocket(sock); - - if (flow->remaining_ == 0) // all data was already buffered (and socket was already closed) - return; +static void WriteUntilBufferFull(ns3::Ptr sock, uint32_t txSpace) +{ + SgFlow* flow = getFlowFromSocket(sock); - uint8_t *data = (uint8_t*)malloc(sizeof(uint8_t)*txSpace); + if (flow->remaining_ == 0) // all data was already buffered (and socket was already closed) + return; - while (flow->bufferedBytes_ < flow->totalBytes_ && sock->GetTxAvailable () > 0) { + /* While not all is buffered and there remain space in the buffers */ + 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); + uint32_t toWrite = std::min({flow->remaining_, sock->GetTxAvailable()}); + if (toWrite == 0) // buffer full + return; + int amountSent = sock->Send(0, toWrite, 0); - if(amountSent < 0) - return; - flow->bufferedBytes_ += amountSent; - flow->remaining_ -= amountSent; + xbt_assert(amountSent > 0, "Since TxAvailable>0, amountSent should also >0"); + 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); + XBT_DEBUG("%f: sent %d bytes over flow %p (still %u to go)", ns3::Simulator::Now().GetSeconds(), amountSent, flow, + flow->remaining_); + } - if ((flow->bufferedBytes_) >= flow->totalBytes_) - sock->Close(); + if (flow->bufferedBytes_ >= flow->totalBytes_) + sock->Close(); } -static void datasent_callback(ns3::Ptr socket, uint32_t dataSent){ +static void datasent_callback(ns3::Ptr socket, uint32_t dataSent) +{ + /* The tracing wants to know */ SgFlow* flow = getFlowFromSocket(socket); flow->sentBytes_ += dataSent; - XBT_DEBUG("datasent_cb of F[%p, %p, %d] %d sent", flow, flow->action_, flow->totalBytes_, dataSent); + XBT_DEBUG("datasent_cb of F[%p, %p, %u] %u sent (%u total)", flow, flow->action_, flow->totalBytes_, dataSent, + flow->sentBytes_); } -static void normalClose_callback(ns3::Ptr socket){ +static void normalClose_callback(ns3::Ptr socket) +{ SgFlow* flow = getFlowFromSocket(socket); - XBT_DEBUG("normalClose_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_); - receive_callback (socket); + XBT_DEBUG("normalClose_cb of F[%p, %p, %u]", flow, flow->action_, flow->totalBytes_); + receive_callback(socket); } -static void errorClose_callback(ns3::Ptr socket){ +static void errorClose_callback(ns3::Ptr socket) +{ SgFlow* flow = getFlowFromSocket(socket); - XBT_DEBUG("errorClose_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_); + XBT_DEBUG("errorClose_cb of F[%p, %p, %u]", flow, flow->action_, flow->totalBytes_); xbt_die("NS3: a socket was closed anormally"); } -static void succeededConnect_callback(ns3::Ptr socket){ +static void succeededConnect_callback(ns3::Ptr socket) +{ SgFlow* flow = getFlowFromSocket(socket); - XBT_DEBUG("succeededConnect_cb of F[%p, %p, %d]", flow, flow->action_, flow->totalBytes_); + XBT_DEBUG("succeededConnect_cb of F[%p, %p, %u]", flow, flow->action_, flow->totalBytes_); } -static void failedConnect_callback(ns3::Ptr socket){ +static void failedConnect_callback(ns3::Ptr socket) +{ SgFlow* mysocket = getFlowFromSocket(socket); - XBT_DEBUG("failedConnect_cb of F[%p, %p, %d]", mysocket, mysocket->action_, mysocket->totalBytes_); + XBT_DEBUG("failedConnect_cb of F[%p, %p, %u]", mysocket, mysocket->action_, mysocket->totalBytes_); xbt_die("NS3: a socket failed to connect"); } -void StartFlow(ns3::Ptr sock, const char *to, uint16_t port_number) +void StartFlow(ns3::Ptr sock, const char* to, uint16_t port_number) { - ns3::InetSocketAddress serverAddr (to, port_number); + SgFlow* flow = getFlowFromSocket(sock); + ns3::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)); + // tell the tcp implementation to call WriteUntilBufferFull again + // if we blocked and new tx buffer space becomes available + sock->SetSendCallback (MakeCallback(&WriteUntilBufferFull)); + // Note when the send is over + sock->SetRecvCallback(MakeCallback(&receive_callback)); + // Keep track of what was used (for the TRACING module) + sock->SetDataSentCallback(MakeCallback(&datasent_callback)); + XBT_DEBUG("startFlow of F[%p, %p, %u] dest=%s port=%d", flow, flow->action_, flow->totalBytes_, to, port_number); + + //WriteUntilBufferFull (sock, sock->GetTxAvailable ()); + /* + sock->SetSendCallback(MakeCallback(&send_callback)); + sock->SetConnectCallback(MakeCallback(&succeededConnect_callback), MakeCallback(&failedConnect_callback)); + sock->SetCloseCallbacks(MakeCallback(&normalClose_callback), MakeCallback(&errorClose_callback)); + send_callback(sock, sock->GetTxAvailable ()); + */ - 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); }