src/mc/mc_comm_pattern.cpp

   1 /* Copyright (c) 2007-2020. The SimGrid Team. All rights reserved.          */
   2
   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. */
   5
   6 #include <cstring>
   7
   8 #include "src/mc/checker/CommunicationDeterminismChecker.hpp"
   9 #include "src/mc/mc_smx.hpp"
  10
  11 using simgrid::mc::remote;
  12
  13 static void MC_patterns_copy(std::vector<simgrid::mc::PatternCommunication*>& dest,
  14                              std::vector<simgrid::mc::PatternCommunication> const& source)
  15 {
  16   dest.clear();
  17   for (simgrid::mc::PatternCommunication const& comm : source) {
  18     auto* copy_comm = new simgrid::mc::PatternCommunication(comm.dup());
  19     dest.push_back(copy_comm);
  20   }
  21 }
  22
  23 void MC_restore_communications_pattern(simgrid::mc::State* state)
  24 {
  25   for (unsigned i = 0; i < initial_communications_pattern.size(); i++)
  26     initial_communications_pattern[i].index_comm = state->communication_indices_[i];
  27
  28   for (unsigned i = 0; i < MC_smx_get_maxpid(); i++)
  29     MC_patterns_copy(incomplete_communications_pattern[i], state->incomplete_comm_pattern_[i]);
  30 }
  31
  32 void MC_handle_comm_pattern(simgrid::mc::CallType call_type, smx_simcall_t req, int value, int backtracking)
  33 {
  34   // HACK, do not rely on the Checker implementation outside of it
  35   auto* checker = static_cast<simgrid::mc::CommunicationDeterminismChecker*>(mc_model_checker->getChecker());
  36
  37   using simgrid::mc::CallType;
  38   switch(call_type) {
  39     case CallType::NONE:
  40       break;
  41     case CallType::SEND:
  42     case CallType::RECV:
  43       checker->get_comm_pattern(req, call_type, backtracking);
  44       break;
  45     case CallType::WAIT:
  46     case CallType::WAITANY: {
  47       simgrid::mc::RemotePtr<simgrid::kernel::activity::CommImpl> comm_addr{nullptr};
  48       if (call_type == CallType::WAIT)
  49         comm_addr = remote(simcall_comm_wait__getraw__comm(req));
  50
  51       else {
  52         simgrid::kernel::activity::ActivityImpl* addr;
  53         addr = mc_model_checker->get_remote_simulation().read(remote(simcall_comm_waitany__getraw__comms(req) + value));
  54         comm_addr = remote(static_cast<simgrid::kernel::activity::CommImpl*>(addr));
  55       }
  56       checker->complete_comm_pattern(comm_addr, MC_smx_simcall_get_issuer(req)->get_pid(), backtracking);
  57     } break;
  58   default:
  59     xbt_die("Unexpected call type %i", (int)call_type);
  60   }
  61 }