X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c9b21bada62fe43b7e1cbb84a8eb44963aba8743..589ed30a21a139bc5735627ed82e23df0318230d:/README.coding

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+**
+** Source tree organization
+**
+******************************************************
+
+There is 4 projects in the tree:
+
+ - GROS: no fancy name yet (low-level toolbox: logging, datatypes).
+ - GRAS: Grid Reality And Simulation (message passing API with two
+         implementations allowing to compile programs on top of the
+         simulator or for the real life without code modification)
+ - SURF: Server for the Use of Resource Fictions (the simulator used 
+         in GRAS and more)
+ - AMOK: Advanced Metacomputing Overlay Kit (high level toolbox; Grid
+         application elements such as distributed database, topology
+         discovery service, and so on)
+
+They are all in the same tree because GRAS depends on SURF which depends on
+GRAS (that's the only cycle here, we're not *that* vicious).
+
+The tree is not splited on projects, but on file finality:
+ include/            -> all *public* headers
+ include/gros/*.h    -> one file per module
+ include/gros.h      -> file including all modules headers
+  (same for gras, surf and amok instead of gros)
+  
+ src/Makefile.am     -> main makefile. All projects should fit in only one
+                        library (I mean 2, RL+SG), which is compiled here.
+			
+			Since all object.o files are placed here, you should
+                        choose the name of c files carfully to avoid
+                        conflict. 
+			
+ src/gras/DataDesc                      -> typical project module
+ src/gras/DataDesc/datadesc_interface.h -> visible to any GRAS modules;
+                                           masked to the user and GROS/AMOK/SURF
+ src/gras/DataDesc/datadesc_private.h   -> visible only from this module					   
+  
+   So, the modules have 3 levels of publicity for their interface. 
+   Private, internal to GRAS, public. Of course, I try to keep as much stuff
+   private as possible.
+  
+ testsuite/ -> The more test the better. 
+               Same organization than src/ and include/
+               Tests are allowed to load some headers of the module they test.
+	       All tests should be listed in run_test.in so that they get
+                  run on 'make check'. 
+	       They are not listed directly in the check_PROGRAMS part of
+                  the makefile because run_test knows about the gras logging
+                  features and relaunch with full details the failed tests.
+		  
+ examples/ -> Supposed to be copy/pastable by the user, so keep it clear and
+                avoid any kind of trick. In particular, do only include the
+                public headers here.
+
+**
+** Type naming standard
+**
+*****************************************************
+
+It may sound strange, but the type naming convention was source of intense
+discution between da GRAS posse members. The convention we came to may not
+be the best solution, but it has the merit to exist and leave everyone work.
+So please stick to it.
+
+  - ???_t is a valid type (builded with typedef)
+  - s_toto_t is a structure (access to fields with .)
+  - s_toto   is a structure needing 'struct' keyword to be used
+  - e_toto_t is an enum
+  - u_toto_t is an union
+  - u_toto   is an union needing 'union' keyword to be used
+  -   toto_t is an 'object' (struct*)
+  
+Please to not call toto_t something else than an 'object' (ie, something you
+have to call _new and _free on it).
+
+Exemple:
+  typedef struct s_toto {} s_toto_t, *toto_t;
+  typedef enum {} e_toto_t;
+  
+Moreover, only toto_t (and e_toto_t) are public. The rest (mainly s_toto_t)
+is private.
+
+If you see any part of the code not following this convention, this is a
+bug. Please report it (or fix it yourself if you can).
+
 **
 ** Random bits about coding standards and portability
+**
+*****************************************************
 
 MALLOC:
  You must cast the result of malloc on AIX. 
  It's even better to use gras_new when possible.
 
 SIZE_T
- If possible, avoid size_t and use unsigned long instead.
+ If possible, avoid size_t and use unsigned long instead. If not,
 
  #include <sys/types.h> in all files manipulating size_t
  do cast it to unsigned long before printing (and use %lu)
  
-
-
 PRINTF pointer difference
  printf ("diff = %ld\n", (long) (pointer2 - pointer1));
   
+
+