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Move MSG_parallel_task_create() in msg_task.c.
[simgrid.git] / src / mc / mc_state.c
index 74f5a54..822d17a 100644 (file)
@@ -1,24 +1,40 @@
-#include "../simix/private.h"
-#include "xbt/fifo.h"
-#include "private.h"
+/* Copyright (c) 2008-2012 Da SimGrid Team. All rights reserved.            */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
 
-static void MC_state_add_transition(mc_state_t state, mc_transition_t trans);
+#include "../simix/smx_private.h"
+#include "xbt/fifo.h"
+#include "mc_private.h"
 
 /**
  * \brief Creates a state data structure used by the exploration algorithm
  */
-mc_state_t MC_state_new(void)
+mc_state_t MC_state_new()
 {
   mc_state_t state = NULL;
   
   state = xbt_new0(s_mc_state_t, 1);
   state->max_pid = simix_process_maxpid;
   state->proc_status = xbt_new0(s_mc_procstate_t, state->max_pid);
-  
+  state->system_state = NULL;
+
   mc_stats->expanded_states++;
   return state;
 }
 
+mc_state_t MC_state_pair_new(void)
+{
+  mc_state_t state = NULL;
+  
+  state = xbt_new0(s_mc_state_t, 1);
+  state->max_pid = simix_process_maxpid;
+  state->proc_status = xbt_new0(s_mc_procstate_t, state->max_pid);
+  
+  //mc_stats->expanded_states++;
+  return state;
+}
+
 /**
  * \brief Deletes a state data structure
  * \param trans The state to be deleted
@@ -29,10 +45,10 @@ void MC_state_delete(mc_state_t state)
   xbt_free(state);
 }
 
-void MC_state_add_to_interleave(mc_state_t state, smx_process_t process)
+void MC_state_interleave_process(mc_state_t state, smx_process_t process)
 {
   state->proc_status[process->pid].state = MC_INTERLEAVE;
-  state->proc_status[process->pid].num_to_interleave = 1;
+  state->proc_status[process->pid].interleave_count = 0;
 }
 
 unsigned int MC_state_interleave_size(mc_state_t state)
@@ -51,43 +67,131 @@ int MC_state_process_is_done(mc_state_t state, smx_process_t process){
   return state->proc_status[process->pid].state == MC_DONE ? TRUE : FALSE;
 }
 
-void MC_state_set_executed_request(mc_state_t state, smx_req_t req)
+void MC_state_set_executed_request(mc_state_t state, smx_simcall_t req, int value)
+{
+  state->executed_req = *req;
+  state->req_num = value;
+
+  /* The waitany and testany request are transformed into a wait or test request over the
+   * corresponding communication action so it can be treated later by the dependence
+   * function. */
+  switch(req->call){
+    case SIMCALL_COMM_WAITANY:
+      state->internal_req.call = SIMCALL_COMM_WAIT;
+      state->internal_req.issuer = req->issuer;
+      state->internal_comm = *xbt_dynar_get_as(req->comm_waitany.comms, value, smx_action_t);
+      state->internal_req.comm_wait.comm = &state->internal_comm;
+      state->internal_req.comm_wait.timeout = 0;
+      break;
+
+    case SIMCALL_COMM_TESTANY:
+      state->internal_req.call = SIMCALL_COMM_TEST;
+      state->internal_req.issuer = req->issuer;
+
+      if(value > 0)
+        state->internal_comm = *xbt_dynar_get_as(req->comm_testany.comms, value, smx_action_t);
+
+      state->internal_req.comm_wait.comm = &state->internal_comm;
+      state->internal_req.comm_test.result = value;
+      break;
+
+    case SIMCALL_COMM_WAIT:
+      state->internal_req = *req;
+      state->internal_comm = *(req->comm_wait.comm);
+      state->executed_req.comm_wait.comm = &state->internal_comm;
+      state->internal_req.comm_wait.comm = &state->internal_comm;
+      break;
+
+    case SIMCALL_COMM_TEST:
+      state->internal_req = *req;
+      state->internal_comm = *req->comm_test.comm;
+      state->executed_req.comm_test.comm = &state->internal_comm;
+      state->internal_req.comm_test.comm = &state->internal_comm;
+      break;
+
+    default:
+      state->internal_req = *req;
+      break;
+  }
+}
+
+smx_simcall_t MC_state_get_executed_request(mc_state_t state, int *value)
 {
-  state->executed = *req;
+  *value = state->req_num;
+  return &state->executed_req;
 }
 
-smx_req_t MC_state_get_executed_request(mc_state_t state)
+smx_simcall_t MC_state_get_internal_request(mc_state_t state)
 {
-  return &state->executed;
+  return &state->internal_req;
 }
 
-smx_req_t MC_state_get_request(mc_state_t state, char *value)
+smx_simcall_t MC_state_get_request(mc_state_t state, int *value)
 {
-  unsigned int i;
   smx_process_t process = NULL;
   mc_procstate_t procstate = NULL;
+  unsigned int start_count;
 
-  for(i=0; i < state->max_pid; i++){
-    procstate = &state->proc_status[i];
+  xbt_swag_foreach(process, simix_global->process_list){
+    procstate = &state->proc_status[process->pid];
 
     if(procstate->state == MC_INTERLEAVE){
-
-      if(procstate->num_to_interleave-- > 1)
-        *value = procstate->requests_indexes[procstate->num_to_interleave];
-
-      /* If the are no more requests to interleave for process i then it is done */
-      if(procstate->num_to_interleave == 0)
-        procstate->state = MC_DONE;
-
-      /* FIXME: SIMIX should implement a process table indexed by pid */
-      /* So we should use that instead of traversing the swag */
-      xbt_swag_foreach(process, simix_global->process_list){
-        if(process->pid == i)
-          break;
+      if(MC_process_is_enabled(process)){
+        switch(process->simcall.call){
+          case SIMCALL_COMM_WAITANY:
+            *value = -1;
+            while(procstate->interleave_count < xbt_dynar_length(process->simcall.comm_waitany.comms)){
+              if(MC_request_is_enabled_by_idx(&process->simcall, procstate->interleave_count++)){
+                *value = procstate->interleave_count-1;
+                break;
+              }
+            }
+
+            if(procstate->interleave_count >= xbt_dynar_length(process->simcall.comm_waitany.comms))
+              procstate->state = MC_DONE;
+
+            if(*value != -1)
+              return &process->simcall;
+
+            break;
+
+          case SIMCALL_COMM_TESTANY:
+            start_count = procstate->interleave_count;
+            *value = -1;
+            while(procstate->interleave_count < xbt_dynar_length(process->simcall.comm_testany.comms)){
+              if(MC_request_is_enabled_by_idx(&process->simcall, procstate->interleave_count++)){
+                *value = procstate->interleave_count - 1;
+                break;
+              }
+            }
+
+            if(procstate->interleave_count >= xbt_dynar_length(process->simcall.comm_testany.comms))
+              procstate->state = MC_DONE;
+
+            if(*value != -1 || start_count == 0)
+              return &process->simcall;
+
+            break;
+
+          case SIMCALL_COMM_WAIT:
+            if(process->simcall.comm_wait.comm->comm.src_proc
+               && process->simcall.comm_wait.comm->comm.dst_proc){
+              *value = 0;
+            }else{
+              *value = -1;
+            }
+            procstate->state = MC_DONE;
+            return &process->simcall;
+
+            break;
+
+          default:
+            procstate->state = MC_DONE;
+            *value = 0;
+            return &process->simcall;
+            break;
+        }
       }
-
-      if(SIMIX_process_is_enabled(process))
-        return &process->request;
     }
   }