X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/f537f6705eaf9d1d99186860f2da468a9d755417..6e3804d01fd5317dac9b0ddf0ddfbc46cf12cef1:/src/msg/global.c

diff --git a/src/msg/global.c b/src/msg/global.c
index 877d5f1d46..2d000f486f 100644
--- a/src/msg/global.c
+++ b/src/msg/global.c
@@ -14,7 +14,13 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(global, msg,
 MSG_Global_t msg_global = NULL;
 
 /* static void MarkAsFailed(m_task_t t, TBX_HashTable_t failedProcessList); */
-/* static xbt_fifo_t MSG_buildFailedHostList(long double a, long double b); */
+/* static xbt_fifo_t MSG_buildFailedHostList(double a, double b); */
+
+/** \defgroup msg_simulation   MSG simulation Functions
+ *  \brief This section describes the functions you need to know to
+ *  set up a simulation. You should have a look at \ref MSG_examples 
+ *  to have an overview of their usage.
+ */
 
 /********************************* MSG **************************************/
 
@@ -26,8 +32,7 @@ void MSG_global_init(void)
   int argc=0;
   char **argv=NULL;
 
-  CRITICAL0("Please stop using this function. Use MSG_global_init_args instead.");
-  DIE_IMPOSSIBLE;
+  CRITICAL0("Function MSG_global_init() is deprecated by MSG_global_init_args().");
   MSG_global_init_args(&argc,argv);
 }
 
@@ -37,9 +42,10 @@ void MSG_global_init(void)
 void MSG_global_init_args(int *argc, char **argv)
 {
   if (!msg_global) {
+    surf_init(argc, argv);	/* Initialize some common structures. Warning, it sets msg_global=NULL */
+     
     msg_global = xbt_new0(s_MSG_Global_t,1);
 
-    surf_init(argc, argv);	/* Initialize some common structures */
     xbt_context_init();
     msg_global->host = xbt_fifo_new();
     msg_global->process_to_run = xbt_fifo_new();
@@ -193,7 +199,7 @@ void MSG_paje_output(const char *filename)
   int len;
 
   xbt_assert0(msg_global, "Initialize MSG first\n");
-  xbt_assert0(!msg_global->paje_output, "Paje output allready defined\n");
+  xbt_assert0(!msg_global->paje_output, "Paje output already defined\n");
   xbt_assert0(filename, "Need a real file name\n");
 
   len = strlen(filename);
@@ -202,8 +208,6 @@ void MSG_paje_output(const char *filename)
 	      filename,ext);
   }
 
-  xbt_assert0(filename, "Need a real file name\n");
-
   msg_global->paje_output=fopen(filename,"w");
   xbt_assert1(msg_global->paje_output, "Failed to open %s \n",filename);
 
@@ -222,9 +226,20 @@ void MSG_paje_output(const char *filename)
  */
 void MSG_set_verbosity(MSG_outputmode_t mode)
 {
-  CRITICAL0("MSG_set_verbosity : Not implemented yet.");
+  CRITICAL0("MSG_set_verbosity : Deprecated function. Use the XBT logging interface.");
 }
 
+/** \defgroup m_channel_management    Understanding channels
+ *  \brief This section briefly describes the channel notion of MSG
+ *  (#m_channel_t).
+ *
+ *  For convenience, the simulator provides the notion of channel
+ *  that is close to the tag notion in MPI. A channel is not a
+ *  socket. It doesn't need to be opened neither closed. It rather
+ *  corresponds to the ports opened on the different machines.
+ */
+
+
 /** \ingroup m_channel_management
  * \brief Set the number of channel in the simulation.
  *
@@ -257,7 +272,7 @@ MSG_error_t MSG_set_channel_number(int number)
    currently used only for the MSG_STORE_AND_FORWARD flavor and represents the
    granularity of the communications (i.e. the packet size).
  */
-MSG_error_t MSG_set_sharing_policy(MSG_sharing_t mode, long double param)
+MSG_error_t MSG_set_sharing_policy(MSG_sharing_t mode, double param)
 {
   CRITICAL0("MSG_set_sharing_policy: this function is now deprecated and useless. Store and forward does not exist anymore. Please stop using it.");
   
@@ -304,11 +319,11 @@ MSG_error_t MSG_main(void)
       xbt_context_schedule(process->simdata->context);
       msg_global->current_process = NULL;
     }
-    DEBUG1("%Lg : Calling surf_solve",MSG_getClock());
+    DEBUG1("%lg : Calling surf_solve",MSG_getClock());
     elapsed_time = surf_solve();
     DEBUG1("Elapsed_time %lg",elapsed_time);
 
-/*     fprintf(stderr, "====== %Lg =====\n",Now); */
+/*     fprintf(stderr, "====== %lg =====\n",Now); */
 /*     if (elapsed_time==0.0) { */
 /*       fprintf(stderr, "No change in time\n"); */
 /*     } */
@@ -448,7 +463,7 @@ MSG_error_t MSG_main(void)
   
 /* } */
 
-/* static xbt_fifo_t MSG_buildFailedHostList(long double begin, long double end) */
+/* static xbt_fifo_t MSG_buildFailedHostList(double begin, double end) */
 /* { */
 /*   xbt_fifo_t failedHostList = xbt_fifo_new(); */
 /*   m_host_t host = NULL; */
@@ -515,17 +530,25 @@ MSG_error_t MSG_clean(void)
     fclose(msg_global->paje_output);
     msg_global->paje_output = NULL;
   }
-  xbt_free(msg_global);
+  free(msg_global);
   surf_finalize();
 
   return MSG_OK;
 }
 
 
+/** \ingroup msg_easier_life
+ * \brief A clock (in second).
+ * \deprecated Use MSG_get_clock
+ */
+double MSG_getClock(void) {
+  return surf_get_clock();
+}
+
 /** \ingroup msg_easier_life
  * \brief A clock (in second).
  */
-long double MSG_getClock(void) {
+double MSG_get_clock(void) {
   return surf_get_clock();
 }