src/mc/mc_comm_pattern.cpp

   1 /* Copyright (c) 2007-2015. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include <string.h>
   8
   9 #include <xbt/sysdep.h>
  10 #include <xbt/dynar.h>
  11 #include <xbt/dynar.hpp>
  12
  13 #include "src/mc/mc_comm_pattern.h"
  14 #include "src/mc/mc_smx.h"
  15 #include "src/mc/mc_xbt.hpp"
  16
  17 using simgrid::mc::remote;
  18
  19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_comm_pattern, mc,
  20                                 "Logging specific to MC communication patterns");
  21
  22 static void MC_patterns_copy(xbt_dynar_t dest,
  23   std::vector<simgrid::mc::PatternCommunication> const& source)
  24 {
  25   xbt_dynar_reset(dest);
  26   for (simgrid::mc::PatternCommunication const& comm : source) {
  27     simgrid::mc::PatternCommunication* copy_comm = new simgrid::mc::PatternCommunication(comm.dup());
  28     xbt_dynar_push(dest, &copy_comm);
  29   }
  30 }
  31
  32 void MC_restore_communications_pattern(simgrid::mc::State* state)
  33 {
  34   simgrid::mc::PatternCommunicationList* list_process_comm;
  35   unsigned int cursor;
  36
  37   xbt_dynar_foreach(initial_communications_pattern, cursor, list_process_comm)
  38     list_process_comm->index_comm = state->communicationIndices[cursor];
  39
  40   for (unsigned i = 0; i < MC_smx_get_maxpid(); i++)
  41     MC_patterns_copy(
  42       xbt_dynar_get_as(incomplete_communications_pattern, i, xbt_dynar_t),
  43       state->incomplete_comm_pattern[i]
  44     );
  45 }
  46
  47 void MC_state_copy_incomplete_communications_pattern(simgrid::mc::State* state)
  48 {
  49   state->incomplete_comm_pattern.clear();
  50   for (unsigned i=0; i < MC_smx_get_maxpid(); i++) {
  51     xbt_dynar_t patterns = xbt_dynar_get_as(incomplete_communications_pattern, i, xbt_dynar_t);
  52     std::vector<simgrid::mc::PatternCommunication> res;
  53     simgrid::mc::PatternCommunication* comm;
  54     unsigned int cursor;
  55     xbt_dynar_foreach(patterns, cursor, comm)
  56       res.push_back(comm->dup());
  57     state->incomplete_comm_pattern.push_back(std::move(res));
  58   }
  59 }
  60
  61 void MC_state_copy_index_communications_pattern(simgrid::mc::State* state)
  62 {
  63   state->communicationIndices.clear();
  64   simgrid::mc::PatternCommunicationList* list_process_comm;
  65   unsigned int cursor;
  66   xbt_dynar_foreach(initial_communications_pattern, cursor, list_process_comm)
  67     state->communicationIndices.push_back(list_process_comm->index_comm);
  68 }
  69
  70 void MC_handle_comm_pattern(
  71   e_mc_call_type_t call_type, smx_simcall_t req,
  72   int value, xbt_dynar_t pattern, int backtracking)
  73 {
  74
  75   switch(call_type) {
  76   case MC_CALL_TYPE_NONE:
  77     break;
  78   case MC_CALL_TYPE_SEND:
  79   case MC_CALL_TYPE_RECV:
  80     MC_get_comm_pattern(pattern, req, call_type, backtracking);
  81     break;
  82   case MC_CALL_TYPE_WAIT:
  83   case MC_CALL_TYPE_WAITANY:
  84     {
  85       smx_synchro_t comm_addr = nullptr;
  86       if (call_type == MC_CALL_TYPE_WAIT)
  87         comm_addr = simcall_comm_wait__get__comm(req);
  88       else
  89         // comm_addr = REMOTE(xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_synchro_t)):
  90         simgrid::mc::read_element(mc_model_checker->process(), &comm_addr,
  91           remote(simcall_comm_waitany__get__comms(req)), value, sizeof(comm_addr));
  92       MC_complete_comm_pattern(pattern, comm_addr,
  93         MC_smx_simcall_get_issuer(req)->pid, backtracking);
  94     }
  95     break;
  96   default:
  97     xbt_die("Unexpected call type %i", (int)call_type);
  98   }
  99
 100 }