X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e631fc4ebfccaf24508e14216a9138669a635c6a..027295612d642dab025657808b3ab22304644aae:/src/simix/smx_process.c

diff --git a/src/simix/smx_process.c b/src/simix/smx_process.c
index b3e2a37163..da0f7d22fb 100644
--- a/src/simix/smx_process.c
+++ b/src/simix/smx_process.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2007-2014. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -26,7 +26,7 @@ XBT_INLINE smx_process_t SIMIX_process_self(void)
 {
   smx_context_t self_context = SIMIX_context_self();
 
-  return self_context ? SIMIX_context_get_data(self_context) : NULL;
+  return self_context ? SIMIX_context_get_process(self_context) : NULL;
 }
 
 /**
@@ -38,6 +38,9 @@ int SIMIX_process_has_pending_comms(smx_process_t process) {
   return xbt_fifo_size(process->comms) > 0;
 }
 
+void SIMIX_pre_process_cleanup(smx_simcall_t simcall, smx_process_t process) {
+  SIMIX_process_cleanup(process);
+}
 /**
  * \brief Moves a process to the list of processes to destroy.
  */
@@ -46,6 +49,8 @@ void SIMIX_process_cleanup(smx_process_t process)
   XBT_DEBUG("Cleanup process %s (%p), waiting action %p",
       process->name, process, process->waiting_action);
 
+  SIMIX_process_on_exit_runall(process);
+
   /* cancel non-blocking communications */
   smx_action_t action;
   while ((action = xbt_fifo_pop(process->comms))) {
@@ -92,14 +97,13 @@ void SIMIX_process_cleanup(smx_process_t process)
     }
   }
 
-  /*xbt_swag_remove(process, simix_global->process_to_run);*/
   xbt_swag_remove(process, simix_global->process_list);
-  xbt_swag_remove(process, process->smx_host->process_list);
+  xbt_swag_remove(process, SIMIX_host_priv(process->smx_host)->process_list);
   xbt_swag_insert(process, simix_global->process_to_destroy);
   process->context->iwannadie = 0;
 }
 
-/** 
+/**
  * Garbage collection
  *
  * Should be called some time to time to free the memory allocated for processes
@@ -120,8 +124,8 @@ void SIMIX_process_empty_trash(void)
 
     xbt_dynar_free(&process->on_exit);
 
-    free(process->name);
-    free(process);
+    xbt_free(process->name);
+    xbt_free(process);
   }
 }
 
@@ -135,18 +139,20 @@ void SIMIX_create_maestro_process()
   /* Create maestro process and intilialize it */
   maestro = xbt_new0(s_smx_process_t, 1);
   maestro->pid = simix_process_maxpid++;
+  maestro->ppid = -1;
   maestro->name = (char *) "";
   maestro->running_ctx = xbt_new(xbt_running_ctx_t, 1);
   XBT_RUNNING_CTX_INITIALIZE(maestro->running_ctx);
   maestro->context = SIMIX_context_new(NULL, 0, NULL, NULL, maestro);
   maestro->simcall.issuer = maestro;
-
   simix_global->maestro_process = maestro;
   return;
 }
 /**
  * \brief Stops a process.
- * Stops the process, execute all the registered on_exit functions
+ *
+ * Stops the process, execute all the registered on_exit functions,
+ * register it to the list of the process to restart if needed
  * and stops its context.
  */
 void SIMIX_process_stop(smx_process_t arg) {
@@ -157,11 +163,12 @@ void SIMIX_process_stop(smx_process_t arg) {
    */
   if (arg->auto_restart && !SIMIX_host_get_state(arg->smx_host)) {
     SIMIX_host_add_auto_restart_process(arg->smx_host,arg->name,arg->code, arg->data,
-                                        arg->smx_host->name,
+                                        sg_host_name(arg->smx_host),
                                         arg->kill_time,
                                         arg->argc,arg->argv,arg->properties,
                                         arg->auto_restart);
   }
+  XBT_DEBUG("Process %s (%s) is dead",arg->name,sg_host_name(arg->smx_host));
   /* stop the context */
   SIMIX_context_stop(arg->context);
 }
@@ -174,21 +181,36 @@ void SIMIX_process_stop(smx_process_t arg) {
 smx_process_t SIMIX_process_create_from_wrapper(smx_process_arg_t args) {
 
   smx_process_t process;
-  simix_global->create_process_function(
-      &process,
-      args->name,
-      args->code,
-      args->data,
-      args->hostname,
-      args->kill_time,
-      args->argc,
-      args->argv,
-      args->properties,
-      args->auto_restart);
+  simix_global->create_process_function(&process,
+                                        args->name,
+                                        args->code,
+                                        args->data,
+                                        args->hostname,
+                                        args->kill_time,
+                                        args->argc,
+                                        args->argv,
+                                        args->properties,
+                                        args->auto_restart,
+                                        NULL);
   xbt_free(args);
   return process;
 }
 
+
+void SIMIX_pre_process_create(smx_simcall_t simcall,
+		          smx_process_t *process,
+                          const char *name,
+                          xbt_main_func_t code,
+                          void *data,
+                          const char *hostname,
+                          double kill_time,
+                          int argc, char **argv,
+                          xbt_dict_t properties,
+                          int auto_restart){
+  SIMIX_process_create(process, name, code, data, hostname,
+                       kill_time, argc, argv, properties, auto_restart,
+                       simcall->issuer);
+}
 /**
  * \brief Internal function to create a process.
  *
@@ -206,22 +228,26 @@ void SIMIX_process_create(smx_process_t *process,
                           double kill_time,
                           int argc, char **argv,
                           xbt_dict_t properties,
-                          int auto_restart) {
-
+                          int auto_restart,
+                          smx_process_t parent_process)
+{
   *process = NULL;
   smx_host_t host = SIMIX_host_get_by_name(hostname);
 
-  XBT_DEBUG("Start process %s on host %s", name, hostname);
+  XBT_DEBUG("Start process %s on host '%s'", name, hostname);
 
   if (!SIMIX_host_get_state(host)) {
+    int i;
     XBT_WARN("Cannot launch process '%s' on failed host '%s'", name,
           hostname);
+    for (i = 0; i < argc; i++)
+      xbt_free(argv[i]);
+    xbt_free(argv);
   }
   else {
     *process = xbt_new0(s_smx_process_t, 1);
 
     xbt_assert(((code != NULL) && (host != NULL)), "Invalid parameters");
-
     /* Process data */
     (*process)->pid = simix_process_maxpid++;
     (*process)->name = xbt_strdup(name);
@@ -229,6 +255,13 @@ void SIMIX_process_create(smx_process_t *process,
     (*process)->data = data;
     (*process)->comms = xbt_fifo_new();
     (*process)->simcall.issuer = *process;
+
+     if (parent_process) {
+       (*process)->ppid = SIMIX_process_get_PID(parent_process);
+     } else {
+       (*process)->ppid = -1;
+     }
+
     /* Process data for auto-restart */
     (*process)->auto_restart = auto_restart;
     (*process)->code = code;
@@ -244,24 +277,28 @@ void SIMIX_process_create(smx_process_t *process,
     (*process)->running_ctx = xbt_new(xbt_running_ctx_t, 1);
     XBT_RUNNING_CTX_INITIALIZE((*process)->running_ctx);
 
+    if(MC_is_active()){
+      MC_ignore_heap((*process)->running_ctx, sizeof(*(*process)->running_ctx));
+    }
+
     /* Add properties */
     (*process)->properties = properties;
 
     /* Add the process to it's host process list */
-    xbt_swag_insert(*process, host->process_list);
+    xbt_swag_insert(*process, SIMIX_host_priv(host)->process_list);
 
     XBT_DEBUG("Start context '%s'", (*process)->name);
 
     /* Now insert it in the global process list and in the process to run list */
     xbt_swag_insert(*process, simix_global->process_list);
-    XBT_DEBUG("Inserting %s(%s) in the to_run list", (*process)->name, host->name);
+    XBT_DEBUG("Inserting %s(%s) in the to_run list", (*process)->name, sg_host_name(host));
     xbt_dynar_push_as(simix_global->process_to_run, smx_process_t, *process);
   }
 
   if (kill_time > SIMIX_get_clock()) {
     if (simix_global->kill_process_function) {
       XBT_DEBUG("Process %s(%s) will be kill at time %f", (*process)->name,
-          (*process)->smx_host->name, kill_time);
+          sg_host_name((*process)->smx_host), kill_time);
       SIMIX_timer_set(kill_time, simix_global->kill_process_function, *process);
     }
   }
@@ -286,6 +323,9 @@ void SIMIX_process_runall(void)
   xbt_dynar_reset(simix_global->process_to_run);
 }
 
+void SIMIX_pre_process_kill(smx_simcall_t simcall, smx_process_t process) {
+  SIMIX_process_kill(process, simcall->issuer);
+}
 /**
  * \brief Internal function to kill a SIMIX process.
  *
@@ -293,10 +333,11 @@ void SIMIX_process_runall(void)
  * or directly for SIMIX internal purposes.
  *
  * \param process poor victim
+ * \param issuer the process which has sent the PROCESS_KILL. Important to not schedule twice the same process.
  */
-void SIMIX_process_kill(smx_process_t process) {
+void SIMIX_process_kill(smx_process_t process, smx_process_t issuer) {
 
-  XBT_DEBUG("Killing process %s on %s", process->name, process->smx_host->name);
+  XBT_DEBUG("Killing process %s on %s", process->name, sg_host_name(process->smx_host));
 
   process->context->iwannadie = 1;
   process->blocked = 0;
@@ -308,70 +349,91 @@ void SIMIX_process_kill(smx_process_t process) {
 
     switch (process->waiting_action->type) {
 
-      case SIMIX_ACTION_EXECUTE:          
-      case SIMIX_ACTION_PARALLEL_EXECUTE:
-        SIMIX_host_execution_destroy(process->waiting_action);
-        break;
-
-      case SIMIX_ACTION_COMMUNICATE:
-        xbt_fifo_remove(process->comms, process->waiting_action);
-        SIMIX_comm_destroy(process->waiting_action);
-        break;
+    case SIMIX_ACTION_EXECUTE:
+    case SIMIX_ACTION_PARALLEL_EXECUTE:
+      SIMIX_host_execution_destroy(process->waiting_action);
+      break;
+
+    case SIMIX_ACTION_COMMUNICATE:
+      xbt_fifo_remove(process->comms, process->waiting_action);
+      SIMIX_comm_cancel(process->waiting_action);
+      SIMIX_comm_destroy(process->waiting_action);
+      break;
+
+    case SIMIX_ACTION_SLEEP:
+      SIMIX_process_sleep_destroy(process->waiting_action);
+      break;
+
+    case SIMIX_ACTION_JOIN:
+      SIMIX_process_sleep_destroy(process->waiting_action);
+      break;
+
+    case SIMIX_ACTION_SYNCHRO:
+      SIMIX_synchro_stop_waiting(process, &process->simcall);
+      SIMIX_synchro_destroy(process->waiting_action);
+      break;
+
+    case SIMIX_ACTION_IO:
+      SIMIX_io_destroy(process->waiting_action);
+      break;
+
+      /* **************************************/
+      /* TUTORIAL: New API                    */
+    case SIMIX_ACTION_NEW_API:
+      SIMIX_new_api_destroy(process->waiting_action);
+      break;
+      /* **************************************/
 
-        case SIMIX_ACTION_SLEEP:
-          SIMIX_process_sleep_destroy(process->waiting_action);
-          break;
-
-        case SIMIX_ACTION_SYNCHRO:
-          SIMIX_synchro_stop_waiting(process, &process->simcall);
-          SIMIX_synchro_destroy(process->waiting_action);
-          break;
-
-        case SIMIX_ACTION_IO:
-          SIMIX_io_destroy(process->waiting_action);
-          break;
     }
   }
-  if(!xbt_dynar_member(simix_global->process_to_run, &(process)))
+  if(!xbt_dynar_member(simix_global->process_to_run, &(process)) && process != issuer) {
     xbt_dynar_push_as(simix_global->process_to_run, smx_process_t, process);
+  }
+
 }
 
+void SIMIX_pre_process_killall(smx_simcall_t simcall, int reset_pid) {
+  SIMIX_process_killall(simcall->issuer, reset_pid);
+}
 /**
  * \brief Kills all running processes.
  * \param issuer this one will not be killed
  */
-void SIMIX_process_killall(smx_process_t issuer)
+void SIMIX_process_killall(smx_process_t issuer, int reset_pid)
 {
   smx_process_t p = NULL;
 
   while ((p = xbt_swag_extract(simix_global->process_list))) {
     if (p != issuer) {
-      SIMIX_process_kill(p);
+      SIMIX_process_kill(p,issuer);
     }
   }
 
+  if (reset_pid > 0)
+    simix_process_maxpid = reset_pid;
+
   SIMIX_context_runall();
 
   SIMIX_process_empty_trash();
 }
 
+void SIMIX_pre_process_change_host(smx_simcall_t simcall, smx_process_t process,
+		                   smx_host_t dest)
+{
+  process->new_host = dest;
+}
 void SIMIX_process_change_host(smx_process_t process,
              smx_host_t dest)
 {
   xbt_assert((process != NULL), "Invalid parameters");
-  xbt_swag_remove(process, process->smx_host->process_list);
+  xbt_swag_remove(process, SIMIX_host_priv(process->smx_host)->process_list);
   process->smx_host = dest;
-  xbt_swag_insert(process, dest->process_list);
+  xbt_swag_insert(process, SIMIX_host_priv(dest)->process_list);
 }
 
-void SIMIX_pre_process_change_host(smx_process_t process, smx_host_t dest)
-{
-  process->new_host = dest;
-}
 
-void SIMIX_pre_process_suspend(smx_simcall_t simcall)
+void SIMIX_pre_process_suspend(smx_simcall_t simcall, smx_process_t process)
 {
-  smx_process_t process = simcall->process_suspend.process;
   smx_action_t action_suspend =
       SIMIX_process_suspend(process, simcall->issuer);
 
@@ -431,10 +493,15 @@ smx_action_t SIMIX_process_suspend(smx_process_t process, smx_process_t issuer)
       return NULL;
     }
   } else {
-    return SIMIX_host_execute("suspend", process->smx_host, 0.0, 1.0);
+    /* FIXME: computation size is zero. Is it okay that bound is zero ? */
+    return SIMIX_host_execute("suspend", process->smx_host, 0.0, 1.0, 0.0, 0);
   }
 }
 
+void SIMIX_pre_process_resume(smx_simcall_t simcall, smx_process_t process){
+  SIMIX_process_resume(process, simcall->issuer);
+}
+
 void SIMIX_process_resume(smx_process_t process, smx_process_t issuer)
 {
   xbt_assert((process != NULL), "Invalid parameters");
@@ -457,7 +524,7 @@ void SIMIX_process_resume(smx_process_t process, smx_process_t issuer)
 
       switch (process->waiting_action->type) {
 
-        case SIMIX_ACTION_EXECUTE:          
+        case SIMIX_ACTION_EXECUTE:
         case SIMIX_ACTION_PARALLEL_EXECUTE:
           SIMIX_host_execution_resume(process->waiting_action);
           break;
@@ -489,11 +556,40 @@ int SIMIX_process_get_maxpid(void) {
   return simix_process_maxpid;
 }
 
+int SIMIX_pre_process_count(smx_simcall_t simcall){
+  return SIMIX_process_count();
+}
 int SIMIX_process_count(void)
 {
   return xbt_swag_size(simix_global->process_list);
 }
 
+int SIMIX_pre_process_get_PID(smx_simcall_t simcall, smx_process_t self){
+   return SIMIX_process_get_PID(self);
+}
+
+int SIMIX_process_get_PID(smx_process_t self){
+  if (self == NULL)
+    return 0;
+  else
+    return self->pid;
+}
+
+int SIMIX_pre_process_get_PPID(smx_simcall_t simcall, smx_process_t self){
+  return SIMIX_process_get_PPID(self);
+}
+
+int SIMIX_process_get_PPID(smx_process_t self){
+  if (self == NULL)
+    return 0;
+  else
+    return self->ppid;
+}
+
+void* SIMIX_pre_process_self_get_data(smx_simcall_t simcall, smx_process_t self){
+  return SIMIX_process_self_get_data(self);
+}
+
 void* SIMIX_process_self_get_data(smx_process_t self)
 {
   xbt_assert(self == SIMIX_process_self(), "This is not the current process");
@@ -504,6 +600,10 @@ void* SIMIX_process_self_get_data(smx_process_t self)
   return SIMIX_process_get_data(self);
 }
 
+void SIMIX_pre_process_set_data(smx_simcall_t simcall, smx_process_t process,
+                                void *data){
+  SIMIX_process_set_data(process, data);
+}
 void SIMIX_process_self_set_data(smx_process_t self, void *data)
 {
   xbt_assert(self == SIMIX_process_self(), "This is not the current process");
@@ -511,6 +611,9 @@ void SIMIX_process_self_set_data(smx_process_t self, void *data)
   SIMIX_process_set_data(self, data);
 }
 
+void* SIMIX_pre_process_get_data(smx_simcall_t simcall, smx_process_t process){
+  return SIMIX_process_get_data(process);
+}
 void* SIMIX_process_get_data(smx_process_t process)
 {
   return process->data;
@@ -521,6 +624,9 @@ void SIMIX_process_set_data(smx_process_t process, void *data)
   process->data = data;
 }
 
+smx_host_t SIMIX_pre_process_get_host(smx_simcall_t simcall, smx_process_t process){
+  return SIMIX_process_get_host(process);
+}
 smx_host_t SIMIX_process_get_host(smx_process_t process)
 {
   return process->smx_host;
@@ -537,6 +643,9 @@ const char* SIMIX_process_self_get_name(void) {
   return SIMIX_process_get_name(process);
 }
 
+const char* SIMIX_pre_process_get_name(smx_simcall_t simcall, smx_process_t process) {
+  return SIMIX_process_get_name(process);
+}
 const char* SIMIX_process_get_name(smx_process_t process)
 {
   return process->name;
@@ -554,25 +663,68 @@ smx_process_t SIMIX_process_get_by_name(const char* name)
   return NULL;
 }
 
+int SIMIX_pre_process_is_suspended(smx_simcall_t simcall, smx_process_t process){
+  return SIMIX_process_is_suspended(process);
+}
 int SIMIX_process_is_suspended(smx_process_t process)
 {
   return process->suspended;
 }
 
+xbt_dict_t SIMIX_pre_process_get_properties(smx_simcall_t simcall, smx_process_t process){
+  return SIMIX_process_get_properties(process);
+}
 xbt_dict_t SIMIX_process_get_properties(smx_process_t process)
 {
   return process->properties;
 }
 
-void SIMIX_pre_process_sleep(smx_simcall_t simcall)
+void SIMIX_pre_process_join(smx_simcall_t simcall, smx_process_t process, double timeout)
+{
+  smx_action_t action = SIMIX_process_join(simcall->issuer, process, timeout);
+  xbt_fifo_push(action->simcalls, simcall);
+  simcall->issuer->waiting_action = action;
+}
+
+static int SIMIX_process_join_finish(smx_process_exit_status_t status, smx_action_t action){
+  if (action->sleep.surf_sleep) {
+    surf_action_cancel(action->sleep.surf_sleep);
+
+    smx_simcall_t simcall;
+    while ((simcall = xbt_fifo_shift(action->simcalls))) {
+      simcall_process_sleep__set__result(simcall, SIMIX_DONE);
+      simcall->issuer->waiting_action = NULL;
+      if (simcall->issuer->suspended) {
+        XBT_DEBUG("Wait! This process is suspended and can't wake up now.");
+        simcall->issuer->suspended = 0;
+        SIMIX_pre_process_suspend(simcall, simcall->issuer);
+      } else {
+        SIMIX_simcall_answer(simcall);
+      }
+    }
+
+    SIMIX_process_sleep_destroy(action);
+  }
+  return 0;
+}
+
+smx_action_t SIMIX_process_join(smx_process_t issuer, smx_process_t process, double timeout)
+{
+  smx_action_t res = SIMIX_process_sleep(issuer, timeout);
+  res->type = SIMIX_ACTION_JOIN;
+  SIMIX_process_on_exit(process, (int_f_pvoid_pvoid_t)SIMIX_process_join_finish, res);
+  return res;
+}
+
+void SIMIX_pre_process_sleep(smx_simcall_t simcall, double duration)
 {
-  if (MC_IS_ENABLED) {
-    MC_process_clock_add(simcall->issuer, simcall->process_sleep.duration);
-    simcall->process_sleep.result = SIMIX_DONE;
+  if (MC_is_active()) {
+    MC_process_clock_add(simcall->issuer, duration);
+    simcall_process_sleep__set__result(simcall, SIMIX_DONE);
     SIMIX_simcall_answer(simcall);
     return;
   }
-  smx_action_t action = SIMIX_process_sleep(simcall->issuer, simcall->process_sleep.duration);
+  smx_action_t action = SIMIX_process_sleep(simcall->issuer, duration);
   xbt_fifo_push(action->simcalls, simcall);
   simcall->issuer->waiting_action = action;
 }
@@ -583,10 +735,9 @@ smx_action_t SIMIX_process_sleep(smx_process_t process, double duration)
   smx_host_t host = process->smx_host;
 
   /* check if the host is active */
-  if (surf_workstation_model->extension.
-      workstation.get_state(host->host) != SURF_RESOURCE_ON) {
+  if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
-           host->name);
+           sg_host_name(host));
   }
 
   action = xbt_mallocator_get(simix_global->action_mallocator);
@@ -598,9 +749,9 @@ smx_action_t SIMIX_process_sleep(smx_process_t process, double duration)
 
   action->sleep.host = host;
   action->sleep.surf_sleep =
-      surf_workstation_model->extension.workstation.sleep(host->host, duration);
+      surf_workstation_sleep(host, duration);
 
-  surf_workstation_model->action_data_set(action->sleep.surf_sleep, action);
+  surf_action_set_data(action->sleep.surf_sleep, action);
   XBT_DEBUG("Create sleep action %p", action);
 
   return action;
@@ -610,13 +761,15 @@ void SIMIX_post_process_sleep(smx_action_t action)
 {
   smx_simcall_t simcall;
   e_smx_state_t state;
+  xbt_assert(action->type == SIMIX_ACTION_SLEEP || action->type == SIMIX_ACTION_JOIN);
 
   while ((simcall = xbt_fifo_shift(action->simcalls))) {
 
-    switch(surf_workstation_model->action_state_get(action->sleep.surf_sleep)){
+    switch(surf_action_get_state(action->sleep.surf_sleep)){
       case SURF_ACTION_FAILED:
         simcall->issuer->context->iwannadie = 1;
         //SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
+        state = SIMIX_SRC_HOST_FAILURE;
         break;
 
       case SURF_ACTION_DONE:
@@ -627,37 +780,50 @@ void SIMIX_post_process_sleep(smx_action_t action)
         THROW_IMPOSSIBLE;
         break;
     }
-    if (surf_workstation_model->extension.
-        workstation.get_state(simcall->issuer->smx_host->host) != SURF_RESOURCE_ON) {
+    if (surf_resource_get_state(surf_workstation_resource_priv(simcall->issuer->smx_host)) != SURF_RESOURCE_ON) {
       simcall->issuer->context->iwannadie = 1;
     }
-    simcall->process_sleep.result = state;
+    simcall_process_sleep__set__result(simcall, state);
     simcall->issuer->waiting_action = NULL;
-    SIMIX_simcall_answer(simcall);
-
+    if (simcall->issuer->suspended) {
+      XBT_DEBUG("Wait! This process is suspended and can't wake up now.");
+      simcall->issuer->suspended = 0;
+      SIMIX_pre_process_suspend(simcall, simcall->issuer);
+    } else {
+      SIMIX_simcall_answer(simcall);
+    }
   }
+
   SIMIX_process_sleep_destroy(action);
 }
 
 void SIMIX_process_sleep_destroy(smx_action_t action)
 {
   XBT_DEBUG("Destroy action %p", action);
-  if (action->sleep.surf_sleep)
-    action->sleep.surf_sleep->model_type->action_unref(action->sleep.surf_sleep);
-  xbt_mallocator_release(simix_global->action_mallocator, action);
+  xbt_assert(action->type == SIMIX_ACTION_SLEEP || action->type == SIMIX_ACTION_JOIN);
+
+  if (action->sleep.surf_sleep) {
+    surf_action_unref(action->sleep.surf_sleep);
+    action->sleep.surf_sleep = NULL;
+  }
+  if (action->type == SIMIX_ACTION_SLEEP)
+    xbt_mallocator_release(simix_global->action_mallocator, action);
 }
 
 void SIMIX_process_sleep_suspend(smx_action_t action)
 {
-  surf_workstation_model->suspend(action->sleep.surf_sleep);
+  xbt_assert(action->type == SIMIX_ACTION_SLEEP);
+  surf_action_suspend(action->sleep.surf_sleep);
 }
 
 void SIMIX_process_sleep_resume(smx_action_t action)
 {
-  surf_workstation_model->resume(action->sleep.surf_sleep);
+  XBT_DEBUG("Action state is %d on process_sleep_resume.", action->state);
+  xbt_assert(action->type == SIMIX_ACTION_SLEEP);
+  surf_action_resume(action->sleep.surf_sleep);
 }
 
-/** 
+/**
  * \brief Calling this function makes the process to yield.
  *
  * Only the current process can call this function, giving back the control to
@@ -685,10 +851,11 @@ void SIMIX_process_yield(smx_process_t self)
     SIMIX_process_stop(self);
   }
 
-  if(self->suspended) {
+  if (self->suspended) {
+    XBT_DEBUG("Hey! I'm suspended.");
     xbt_assert(!self->doexception, "Gloups! This exception may be lost by subsequent calls.");
     self->suspended = 0;
-    SIMIX_process_suspend(self,self);
+    SIMIX_process_suspend(self, self);
   }
 
   if (self->doexception) {
@@ -696,6 +863,7 @@ void SIMIX_process_yield(smx_process_t self)
     self->doexception = 0;
     SMX_THROW();
   }
+
 }
 
 /* callback: context fetching */
@@ -708,7 +876,7 @@ xbt_running_ctx_t *SIMIX_process_get_running_context(void)
 void SIMIX_process_exception_terminate(xbt_ex_t * e)
 {
   xbt_ex_display(e);
-  abort();
+  xbt_abort();
 }
 
 smx_context_t SIMIX_process_get_context(smx_process_t p) {
@@ -750,15 +918,24 @@ xbt_dynar_t SIMIX_processes_as_dynar(void) {
   }
   return res;
 }
+
+
 void SIMIX_process_on_exit_runall(smx_process_t process) {
   s_smx_process_exit_fun_t exit_fun;
-
+  smx_process_exit_status_t exit_status = (process->context->iwannadie) ?
+                                         SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS;
   while (!xbt_dynar_is_empty(process->on_exit)) {
     exit_fun = xbt_dynar_pop_as(process->on_exit,s_smx_process_exit_fun_t);
-    (exit_fun.fun)(exit_fun.arg);
+    (exit_fun.fun)((void*)exit_status, exit_fun.arg);
   }
 }
-void SIMIX_process_on_exit(smx_process_t process, int_f_pvoid_t fun, void *data) {
+
+void SIMIX_pre_process_on_exit(smx_simcall_t simcall, smx_process_t process,
+	                       int_f_pvoid_pvoid_t fun, void *data) {
+  SIMIX_process_on_exit(process, fun, data);
+}
+
+void SIMIX_process_on_exit(smx_process_t process, int_f_pvoid_pvoid_t fun, void *data) {
   xbt_assert(process, "current process not found: are you in maestro context ?");
 
   if (!process->on_exit) {
@@ -769,6 +946,11 @@ void SIMIX_process_on_exit(smx_process_t process, int_f_pvoid_t fun, void *data)
 
   xbt_dynar_push_as(process->on_exit,s_smx_process_exit_fun_t,exit_fun);
 }
+
+void SIMIX_pre_process_auto_restart_set(smx_simcall_t simcall, smx_process_t process,
+		                        int auto_restart) {
+  SIMIX_process_auto_restart_set(process, auto_restart);
+}
 /**
  * \brief Sets the auto-restart status of the process.
  * If set to 1, the process will be automatically restarted when its host
@@ -777,3 +959,60 @@ void SIMIX_process_on_exit(smx_process_t process, int_f_pvoid_t fun, void *data)
 void SIMIX_process_auto_restart_set(smx_process_t process, int auto_restart) {
   process->auto_restart = auto_restart;
 }
+
+smx_process_t SIMIX_pre_process_restart(smx_simcall_t simcall, smx_process_t process) {
+  return SIMIX_process_restart(process, simcall->issuer);
+}
+/**
+ * \brief Restart a process.
+ * Restart a process, starting it again from the beginning.
+ */
+smx_process_t SIMIX_process_restart(smx_process_t process, smx_process_t issuer) {
+  XBT_DEBUG("Restarting process %s on %s", process->name, sg_host_name(process->smx_host));
+  //retrieve the arguments of the old process
+  //FIXME: Factorise this with SIMIX_host_add_auto_restart_process ?
+  s_smx_process_arg_t arg;
+  arg.code = process->code;
+  arg.hostname = sg_host_name(process->smx_host);
+  arg.kill_time = process->kill_time;
+  arg.argc = process->argc;
+  arg.data = process->data;
+  int i;
+  arg.argv = xbt_new(char*,process->argc + 1);
+  for (i = 0; i < arg.argc; i++) {
+    arg.argv[i] = xbt_strdup(process->argv[i]);
+  }
+  arg.argv[process->argc] = NULL;
+  arg.properties = NULL;
+  arg.auto_restart = process->auto_restart;
+  //kill the old process
+  SIMIX_process_kill(process,issuer);
+  //start the new process
+  smx_process_t new_process;
+  if (simix_global->create_process_function) {
+    simix_global->create_process_function(&new_process,
+                                          arg.argv[0],
+                                          arg.code,
+                                          arg.data,
+                                          arg.hostname,
+                                          arg.kill_time,
+                                          arg.argc,
+                                          arg.argv,
+                                          arg.properties,
+                                          arg.auto_restart,
+                                          NULL);
+  } else {
+    simcall_process_create(&new_process,
+                           arg.argv[0],
+                           arg.code,
+                           arg.data,
+                           arg.hostname,
+                           arg.kill_time,
+                           arg.argc,
+                           arg.argv,
+                           arg.properties,
+                           arg.auto_restart);
+
+  }
+  return new_process;
+}