src/mc/mc_comm_pattern.cpp

   1 /* Copyright (c) 2007-2019. 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 "xbt/dynar.h"
   9 #include "xbt/sysdep.h"
  10
  11 #include "src/mc/checker/CommunicationDeterminismChecker.hpp"
  12 #include "src/mc/mc_comm_pattern.hpp"
  13 #include "src/mc/mc_smx.hpp"
  14
  15 using simgrid::mc::remote;
  16
  17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_comm_pattern, mc,
  18                                 "Logging specific to MC communication patterns");
  19
  20 static void MC_patterns_copy(std::vector<simgrid::mc::PatternCommunication*>& dest,
  21                              std::vector<simgrid::mc::PatternCommunication> const& source)
  22 {
  23   dest.clear();
  24   for (simgrid::mc::PatternCommunication const& comm : source) {
  25     simgrid::mc::PatternCommunication* copy_comm = new simgrid::mc::PatternCommunication(comm.dup());
  26     dest.push_back(copy_comm);
  27   }
  28 }
  29
  30 void MC_restore_communications_pattern(simgrid::mc::State* state)
  31 {
  32   for (unsigned i = 0; i < initial_communications_pattern.size(); i++)
  33     initial_communications_pattern[i].index_comm = state->communicationIndices[i];
  34
  35   for (unsigned i = 0; i < MC_smx_get_maxpid(); i++)
  36     MC_patterns_copy(incomplete_communications_pattern[i], state->incomplete_comm_pattern[i]);
  37 }
  38
  39 void MC_state_copy_incomplete_communications_pattern(simgrid::mc::State* state)
  40 {
  41   state->incomplete_comm_pattern.clear();
  42   for (unsigned i=0; i < MC_smx_get_maxpid(); i++) {
  43     std::vector<simgrid::mc::PatternCommunication> res;
  44     for (auto const& comm : incomplete_communications_pattern[i])
  45       res.push_back(comm->dup());
  46     state->incomplete_comm_pattern.push_back(std::move(res));
  47   }
  48 }
  49
  50 void MC_state_copy_index_communications_pattern(simgrid::mc::State* state)
  51 {
  52   state->communicationIndices.clear();
  53   for (auto const& list_process_comm : initial_communications_pattern)
  54     state->communicationIndices.push_back(list_process_comm.index_comm);
  55 }
  56
  57 void MC_handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t req, int value, int backtracking)
  58 {
  59   // HACK, do not rely on the Checker implementation outside of it
  60   simgrid::mc::CommunicationDeterminismChecker* checker =
  61     (simgrid::mc::CommunicationDeterminismChecker*) mc_model_checker->getChecker();
  62
  63   switch(call_type) {
  64   case MC_CALL_TYPE_NONE:
  65     break;
  66   case MC_CALL_TYPE_SEND:
  67   case MC_CALL_TYPE_RECV:
  68     checker->get_comm_pattern(req, call_type, backtracking);
  69     break;
  70   case MC_CALL_TYPE_WAIT:
  71   case MC_CALL_TYPE_WAITANY:
  72     {
  73     simgrid::mc::RemotePtr<simgrid::kernel::activity::CommImpl> comm_addr{nullptr};
  74     if (call_type == MC_CALL_TYPE_WAIT)
  75       comm_addr = remote(static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(req)));
  76
  77     else {
  78       simgrid::kernel::activity::ActivityImpl* addr;
  79       addr      = mc_model_checker->process().read(remote(simcall_comm_waitany__getraw__comms(req) + value));
  80       comm_addr = remote(static_cast<simgrid::kernel::activity::CommImpl*>(addr));
  81       }
  82       checker->complete_comm_pattern(comm_addr, MC_smx_simcall_get_issuer(req)->get_pid(), backtracking);
  83     }
  84     break;
  85   default:
  86     xbt_die("Unexpected call type %i", (int)call_type);
  87   }
  88
  89 }