+**
+** 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 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));
+
+