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     simgrid::mc::PatternCommunication* 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_state_copy_incomplete_communications_pattern(simgrid::mc::State* state)
  33 {
  34   state->incomplete_comm_pattern_.clear();
  35   for (unsigned i=0; i < MC_smx_get_maxpid(); i++) {
  36     std::vector<simgrid::mc::PatternCommunication> res;
  37     for (auto const& comm : incomplete_communications_pattern[i])
  38       res.push_back(comm->dup());
  39     state->incomplete_comm_pattern_.push_back(std::move(res));
  40   }
  41 }
  42
  43 void MC_state_copy_index_communications_pattern(simgrid::mc::State* state)
  44 {
  45   state->communication_indices_.clear();
  46   for (auto const& list_process_comm : initial_communications_pattern)
  47     state->communication_indices_.push_back(list_process_comm.index_comm);
  48 }
  49
  50 void MC_handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t req, int value, int backtracking)
  51 {
  52   // HACK, do not rely on the Checker implementation outside of it
  53   simgrid::mc::CommunicationDeterminismChecker* checker =
  54     (simgrid::mc::CommunicationDeterminismChecker*) mc_model_checker->getChecker();
  55
  56   switch(call_type) {
  57   case MC_CALL_TYPE_NONE:
  58     break;
  59   case MC_CALL_TYPE_SEND:
  60   case MC_CALL_TYPE_RECV:
  61     checker->get_comm_pattern(req, call_type, backtracking);
  62     break;
  63   case MC_CALL_TYPE_WAIT:
  64   case MC_CALL_TYPE_WAITANY:
  65     {
  66     simgrid::mc::RemotePtr<simgrid::kernel::activity::CommImpl> comm_addr{nullptr};
  67     if (call_type == MC_CALL_TYPE_WAIT)
  68       comm_addr = remote(static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(req)));
  69
  70     else {
  71       simgrid::kernel::activity::ActivityImpl* addr;
  72       addr      = mc_model_checker->process().read(remote(simcall_comm_waitany__getraw__comms(req) + value));
  73       comm_addr = remote(static_cast<simgrid::kernel::activity::CommImpl*>(addr));
  74       }
  75       checker->complete_comm_pattern(comm_addr, MC_smx_simcall_get_issuer(req)->get_pid(), backtracking);
  76     }
  77     break;
  78   default:
  79     xbt_die("Unexpected call type %i", (int)call_type);
  80   }
  81
  82 }