X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/cd8852187f491f7fa8049414d7ac2d0193518e23..1b911b6a9f89da36c855be22c9506b772a089ca6:/src/mc/mc_global.c

diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c
index 2a72f31351..42e8dd131f 100644
--- a/src/mc/mc_global.c
+++ b/src/mc/mc_global.c
@@ -14,22 +14,24 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_global, mc,
 /* MC global data structures */
 mc_snapshot_t initial_snapshot = NULL;
 xbt_fifo_t mc_stack = NULL;
-xbt_setset_t mc_setset = NULL;
 mc_stats_t mc_stats = NULL;
+mc_stats_pair_t mc_stats_pair = NULL;
 mc_state_t mc_current_state = NULL;
 char mc_replay_mode = FALSE;
+double *mc_time = NULL;
+xbt_fifo_t mc_snapshot_stack = NULL;
 
 /**
  *  \brief Initialize the model-checker data structures
  */
 void MC_init(void)
 {
-  smx_process_t process;
-  
   /* Check if MC is already initialized */
   if (initial_snapshot)
     return;
 
+  mc_time = xbt_new0(double, simix_process_maxpid);
+
   /* Initialize the data structures that must be persistent across every
      iteration of the model-checker (in RAW memory) */
   MC_SET_RAW_MEM;
@@ -41,23 +43,44 @@ void MC_init(void)
   /* Create exploration stack */
   mc_stack = xbt_fifo_new();
 
-  /* Create the container for the sets */
-  mc_setset = xbt_setset_new(20);
+  MC_UNSET_RAW_MEM;
 
-  /* Add the existing processes to mc's setset so they have an ID designated */
-  /* FIXME: check what happen if there are processes created during the exploration */
-  xbt_swag_foreach(process, simix_global->process_list){
-    xbt_setset_elm_add(mc_setset, process);
-  }
-  
   MC_dpor_init();
 
+  MC_SET_RAW_MEM;
   /* Save the initial state */
   initial_snapshot = xbt_new0(s_mc_snapshot_t, 1);
   MC_take_snapshot(initial_snapshot);
   MC_UNSET_RAW_MEM;
 }
 
+void MC_init_with_automaton(xbt_automaton_t a){
+
+  XBT_DEBUG("Start init mc");
+  
+  mc_time = xbt_new0(double, simix_process_maxpid);
+
+  /* Initialize the data structures that must be persistent across every
+     iteration of the model-checker (in RAW memory) */
+
+  MC_SET_RAW_MEM;
+
+  /* Initialize statistics */
+  mc_stats_pair = xbt_new0(s_mc_stats_pair_t, 1);
+  //mc_stats_pair->pair_size = 1;
+
+  XBT_DEBUG("Creating snapshot_stack");
+
+ /* Create exploration stack */
+  mc_snapshot_stack = xbt_fifo_new();
+
+  MC_UNSET_RAW_MEM;
+
+  //MC_dfs_init(a);
+  MC_dfs_init(a);
+}
+
+
 void MC_modelcheck(void)
 {
   MC_init();
@@ -65,8 +88,22 @@ void MC_modelcheck(void)
   MC_exit();
 }
 
+void MC_modelcheck_with_automaton(xbt_automaton_t a){
+  MC_init_with_automaton(a);
+  MC_exit_with_automaton();
+}
+
+void MC_exit_with_automaton(void)
+{
+  MC_print_statistics_pairs(mc_stats_pair);
+  xbt_free(mc_time);
+  MC_memory_exit();
+}
+
 void MC_exit(void)
 {
+  MC_print_statistics(mc_stats);
+  xbt_free(mc_time);
   MC_memory_exit();
 }
 
@@ -76,6 +113,42 @@ int MC_random(int min, int max)
   return 0;
 }
 
+/**
+ * \brief Schedules all the process that are ready to run
+ */
+void MC_wait_for_requests(void)
+{
+  smx_process_t process;
+  smx_req_t req;
+  unsigned int iter;
+
+  while (xbt_dynar_length(simix_global->process_to_run)) {
+    SIMIX_process_runall();
+    xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
+      req = &process->request;
+      if (req->call != REQ_NO_REQ && !MC_request_is_visible(req))
+          SIMIX_request_pre(req, 0);
+    }
+  }
+}
+
+int MC_deadlock_check()
+{
+  int deadlock = FALSE;
+  smx_process_t process;
+  if(xbt_swag_size(simix_global->process_list)){
+    deadlock = TRUE;
+    xbt_swag_foreach(process, simix_global->process_list){
+      if(process->request.call != REQ_NO_REQ
+         && MC_request_is_enabled(&process->request)){
+        deadlock = FALSE;
+        break;
+      }
+    }
+  }
+  return deadlock;
+}
+
 /**
  * \brief Re-executes from the initial state all the transitions indicated by
  *        a given model-checker stack.
@@ -83,15 +156,19 @@ int MC_random(int min, int max)
 */
 void MC_replay(xbt_fifo_t stack)
 {
+  int value;
   char *req_str;
   smx_req_t req = NULL, saved_req = NULL;
   xbt_fifo_item_t item;
   mc_state_t state;
 
-  DEBUG0("**** Begin Replay ****");
+  XBT_DEBUG("**** Begin Replay ****");
 
   /* Restore the initial state */
   MC_restore_snapshot(initial_snapshot);
+  /* At the moment of taking the snapshot the raw heap was set, so restoring
+   * it will set it back again, we have to unset it to continue  */
+  MC_UNSET_RAW_MEM;
 
   /* Traverse the stack from the initial state and re-execute the transitions */
   for (item = xbt_fifo_get_last_item(stack);
@@ -99,7 +176,7 @@ void MC_replay(xbt_fifo_t stack)
        item = xbt_fifo_get_prev_item(item)) {
 
     state = (mc_state_t) xbt_fifo_get_item_content(item);
-    saved_req = MC_state_get_executed_request(state);
+    saved_req = MC_state_get_executed_request(state, &value);
    
     if(saved_req){
       /* because we got a copy of the executed request, we have to fetch the  
@@ -108,20 +185,20 @@ void MC_replay(xbt_fifo_t stack)
 
       /* Debug information */
       if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
-        req_str = MC_request_to_string(req); 
-        DEBUG1("Replay: %s", req_str);
+        req_str = MC_request_to_string(req, value);
+        XBT_DEBUG("Replay: %s (%p)", req_str, state);
         xbt_free(req_str);
       }
     }
          
-    SIMIX_request_pre(req);
+    SIMIX_request_pre(req, value);
     MC_wait_for_requests();
          
     /* Update statistics */
     mc_stats->visited_states++;
     mc_stats->executed_transitions++;
   }
-  DEBUG0("**** End Replay ****");
+  XBT_DEBUG("**** End Replay ****");
 }
 
 /**
@@ -143,6 +220,7 @@ void MC_dump_stack(xbt_fifo_t stack)
 
 void MC_show_stack(xbt_fifo_t stack)
 {
+  int value;
   mc_state_t state;
   xbt_fifo_item_t item;
   smx_req_t req;
@@ -151,76 +229,87 @@ void MC_show_stack(xbt_fifo_t stack)
   for (item = xbt_fifo_get_last_item(stack);
        (item ? (state = (mc_state_t) (xbt_fifo_get_item_content(item)))
         : (NULL)); item = xbt_fifo_get_prev_item(item)) {
-    req = MC_state_get_executed_request(state);
+    req = MC_state_get_executed_request(state, &value);
     if(req){
-      req_str = MC_request_to_string(req); 
-      INFO1("%s", req_str);
+      req_str = MC_request_to_string(req, value);
+      XBT_INFO("%s", req_str);
       xbt_free(req_str);
     }
   }
 }
 
-/**
- * \brief Schedules all the process that are ready to run
- */
-void MC_wait_for_requests(void)
+void MC_show_deadlock(smx_req_t req)
 {
-  char *req_str = NULL;
-  smx_req_t req = NULL;
-
-  do {
-    SIMIX_context_runall(simix_global->process_to_run);
-    while((req = SIMIX_request_pop())){
-      if(!SIMIX_request_is_visible(req))
-        SIMIX_request_pre(req);
-      else if(req->call == REQ_COMM_WAITANY)
-        THROW_UNIMPLEMENTED;
-      else if(XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)){
-        req_str = MC_request_to_string(req);
-        DEBUG1("Got: %s", req_str);
-        xbt_free(req_str);
-      }
-    }
-  } while (xbt_swag_size(simix_global->process_to_run));
+  /*char *req_str = NULL;*/
+  XBT_INFO("**************************");
+  XBT_INFO("*** DEAD-LOCK DETECTED ***");
+  XBT_INFO("**************************");
+  XBT_INFO("Locked request:");
+  /*req_str = MC_request_to_string(req);
+  XBT_INFO("%s", req_str);
+  xbt_free(req_str);*/
+  XBT_INFO("Counter-example execution trace:");
+  MC_dump_stack(mc_stack);
 }
 
-/****************************** Statistics ************************************/
 void MC_print_statistics(mc_stats_t stats)
 {
-  INFO1("State space size ~= %lu", stats->state_size);
-  INFO1("Expanded states = %lu", stats->expanded_states);
-  INFO1("Visited states = %lu", stats->visited_states);
-  INFO1("Executed transitions = %lu", stats->executed_transitions);
-  INFO1("Expanded / Visited = %lf",
+  XBT_INFO("State space size ~= %lu", stats->state_size);
+  XBT_INFO("Expanded states = %lu", stats->expanded_states);
+  XBT_INFO("Visited states = %lu", stats->visited_states);
+  XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
+  XBT_INFO("Expanded / Visited = %lf",
         (double) stats->visited_states / stats->expanded_states);
-  /*INFO1("Exploration coverage = %lf", 
+  /*XBT_INFO("Exploration coverage = %lf",
+     (double)stats->expanded_states / stats->state_size); */
+}
+
+void MC_print_statistics_pairs(mc_stats_pair_t stats)
+{
+  XBT_INFO("Expanded pairs = %lu", stats->expanded_pairs);
+  XBT_INFO("Visited pairs = %lu", stats->visited_pairs);
+  //XBT_INFO("Executed transitions = %lu", stats->executed_transitions);
+  XBT_INFO("Expanded / Visited = %lf",
+        (double) stats->visited_pairs / stats->expanded_pairs);
+  /*XBT_INFO("Exploration coverage = %lf",
      (double)stats->expanded_states / stats->state_size); */
 }
 
-/************************* Assertion Checking *********************************/
 void MC_assert(int prop)
 {
   if (MC_IS_ENABLED && !prop) {
-    INFO0("**************************");
-    INFO0("*** PROPERTY NOT VALID ***");
-    INFO0("**************************");
-    INFO0("Counter-example execution trace:");
+    XBT_INFO("**************************");
+    XBT_INFO("*** PROPERTY NOT VALID ***");
+    XBT_INFO("**************************");
+    XBT_INFO("Counter-example execution trace:");
     MC_dump_stack(mc_stack);
     MC_print_statistics(mc_stats);
     xbt_abort();
   }
 }
 
-void MC_show_deadlock(smx_req_t req)
+void MC_assert_pair(int prop){
+  if (MC_IS_ENABLED && !prop) {
+    XBT_INFO("**************************");
+    XBT_INFO("*** PROPERTY NOT VALID ***");
+    XBT_INFO("**************************");
+    //XBT_INFO("Counter-example execution trace:");
+    MC_show_snapshot_stack(mc_snapshot_stack);
+    //MC_dump_snapshot_stack(mc_snapshot_stack);
+    MC_print_statistics_pairs(mc_stats_pair);
+    xbt_abort();
+  }
+}
+
+void MC_process_clock_add(smx_process_t process, double amount)
 {
-  char *req_str = NULL;
-  INFO0("**************************");
-  INFO0("*** DEAD-LOCK DETECTED ***");
-  INFO0("**************************");
-  INFO0("Locked request:");
-  req_str = MC_request_to_string(req);
-  INFO1("%s", req_str);
-  xbt_free(req_str);
-  INFO0("Counter-example execution trace:");
-  MC_dump_stack(mc_stack);
+  mc_time[process->pid] += amount;
+}
+
+double MC_process_clock_get(smx_process_t process)
+{
+  if(mc_time)
+    return mc_time[process->pid];
+  else
+    return 0;
 }