X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3d630a8a0429ae6e380bf1e002a6e55c21cd078f..a3570625c9460617ccad1803b50bc4f1793b6376:/include/gras/process.h

diff --git a/include/gras/process.h b/include/gras/process.h
index 130960f248..5f4f2cac8d 100644
--- a/include/gras/process.h
+++ b/include/gras/process.h
@@ -10,53 +10,60 @@
 #ifndef GRAS_PROCESS_H
 #define GRAS_PROCESS_H
 
-#include "xbt/misc.h" /* BEGIN_DECL */
+#include "xbt/misc.h"           /* SG_BEGIN_DECL */
+#include "xbt/dict.h"
 
-BEGIN_DECL
+SG_BEGIN_DECL()
 
-/* **************************************************************************
- * Initializing the processes
- * **************************************************************************/
-/**
- * gras_process_init:
- * 
- * Perform the various intialisations needed by gras. Each process must run it
- */
-xbt_error_t gras_process_init(void);
+     void gras_agent_spawn(const char *name, void *data, xbt_main_func_t code,
+                           int argc, char *argv[], xbt_dict_t properties);
 
-/**
- * gras_process_exit:
- * 
- * Frees the memory allocated by gras. Processes should run it
- */
-xbt_error_t gras_process_exit(void);
 
 /****************************************************************************/
 /* Manipulating User Data                                                   */
 /****************************************************************************/
-/**
- * gras_userdata_get:
- *
- * Get the data associated with the current process.
+
+/** \addtogroup GRAS_globals
+ *  \brief Handling global variables so that it works on simulator.
+ * 
+ * In GRAS, using globals is forbidden since the "processes" will
+ * sometimes run as a thread inside the same process (namely, in
+ * simulation mode). So, you have to put all globals in a structure, and
+ * let GRAS handle it.
+ * 
+ * Use the \ref gras_userdata_new macro to create a new user data (or malloc it
+ * and use \ref gras_userdata_set yourself), and \ref gras_userdata_get to
+ * retrieve a reference to it.
+ * 
+ * 
+ * For more info on this, you may want to check the relevant lesson of the GRAS tutorial:
+ * \ref GRAS_tut_tour_globals
  */
-void *gras_userdata_get(void);
+/* @{ */
 
 /**
- * gras_userdata_set:
- *
- * Set the data associated with the current process.
+ * \brief Get the data associated with the current process.
+ * \ingroup GRAS_globals
  */
-void gras_userdata_set(void *ud);
+XBT_PUBLIC(void *) gras_userdata_get(void);
 
 /**
- * gras_userdata_new:
- *
- * Malloc and set the data associated with the current process.
+ * \brief Set the data associated with the current process.
+ * \ingroup GRAS_globals
  */
+XBT_PUBLIC(void *) gras_userdata_set(void *ud);
 
-#define gras_userdata_new(type) (gras_userdata_set(xbt_new0(type,1)),gras_userdata_get())
-
-END_DECL
+/** \brief Malloc and set the data associated with the current process.
+ *
+ * @warning gras_userdata_new() expects the pointed type, not the
+ * pointer type. We know it'a a bit troublesome, but it seems like
+ * the only solution since this macro has to compute the size to
+ * malloc and should thus know the pointed type. 
+ *
+ * You'll find an example in the tutorial:  \ref GRAS_tut_tour_globals
+ */
+#define gras_userdata_new(type) ((type*)gras_userdata_set(xbt_new0(type,1)))
+/* @} */
 
+SG_END_DECL()
 #endif /* GRAS_PROCESS_H */
-