Additionnal checks to help end-users.

[simgrid.git] / src / msg / gos.c

diff --git a/src/msg/gos.c b/src/msg/gos.c
index aa21ba2..892b523 100644 (file)
--- a/src/msg/gos.c
+++ b/src/msg/gos.c
@@ -24,6 +24,7 @@ static MSG_error_t __MSG_task_get_with_time_out_from_host(m_task_t * task,
   m_process_t process = MSG_process_self();
   m_task_t t = NULL;
   m_host_t h = NULL;
+  m_task_t task_to_wait_for;
   simdata_task_t t_simdata = NULL;
   simdata_host_t h_simdata = NULL;
   int first_time = 1;
@@ -97,7 +98,7 @@ static MSG_error_t __MSG_task_get_with_time_out_from_host(m_task_t * task,
   while(MSG_process_is_suspended(t_simdata->sender)) {
     DEBUG1("Oooups, the sender (%s) has been suspended in the meantime. Let's wait for him", 
           t_simdata->sender->name);
-    m_task_t task_to_wait_for = t_simdata->sender->simdata->waiting_task;
+    task_to_wait_for = t_simdata->sender->simdata->waiting_task;
     if(__MSG_process_isBlocked(t_simdata->sender)) {
       DEBUG0("He's blocked. Let's wait for him to go in the suspended state");
       __MSG_process_unblock(t_simdata->sender);
@@ -237,14 +238,12 @@ MSG_error_t MSG_task_get_from_host(m_task_t * task, int channel,
 int MSG_task_Iprobe(m_channel_t channel)
 {
   m_host_t h = NULL;
-  simdata_host_t h_simdata = NULL;
 
   xbt_assert1((channel>=0) && (channel < msg_global->max_channel),"Invalid channel %d",channel);
   DEBUG2("Probing on channel %d (%s)", channel,h->name);
   CHECK_HOST();
   h = MSG_host_self();
-  h_simdata = h->simdata;
-  return(xbt_fifo_get_first_item(h_simdata->mbox[channel])!=NULL);
+  return(xbt_fifo_get_first_item(h->simdata->mbox[channel])!=NULL);
 }
 
 /** \ingroup msg_gos_functions
@@ -259,14 +258,12 @@ int MSG_task_Iprobe(m_channel_t channel)
 int MSG_task_probe_from(m_channel_t channel)
 {
   m_host_t h = NULL;
-  simdata_host_t h_simdata = NULL;
   xbt_fifo_item_t item;
   m_task_t t;
 
   xbt_assert1((channel>=0) && (channel < msg_global->max_channel),"Invalid channel %d",channel);
   CHECK_HOST();
   h = MSG_host_self();
-  h_simdata = h->simdata;
 
   DEBUG2("Probing on channel %d (%s)", channel,h->name);
    
@@ -366,7 +363,6 @@ MSG_error_t MSG_channel_select_from(m_channel_t channel, double max_duration,
  */
 int MSG_task_probe_from_host(int channel, m_host_t host)
 {
-  simdata_host_t h_simdata = NULL;
   xbt_fifo_item_t item;
   m_task_t t;
   int count = 0;
@@ -375,7 +371,6 @@ int MSG_task_probe_from_host(int channel, m_host_t host)
   xbt_assert1((channel>=0) && (channel < msg_global->max_channel),"Invalid channel %d",channel);
   CHECK_HOST();
   h = MSG_host_self();
-  h_simdata = h->simdata;
 
   DEBUG2("Probing on channel %d (%s)", channel,h->name);
    
@@ -750,6 +745,8 @@ MSG_error_t MSG_process_sleep(double nb_sec)
   m_process_t process = MSG_process_self();
   m_task_t dummy = NULL;
   simdata_task_t simdata = NULL;
+  
+  xbt_assert1(nb_sec>=0,"Invalid duration %g",nb_sec);
 
   CHECK_HOST();
   dummy = MSG_task_create("MSG_sleep", nb_sec, 0.0, NULL);