$ ./test_server & ./test_client 127.0.0.1 
[arthur:server:(12832) 0.000013] [test/INFO] Convert 4321 to string
[arthur:server:(12832) 0.000128] [test/INFO] 4321 converted to string: 4321
[arthur:server:(12832) 0.003889] [test/INFO] Convert 1234 to long
[arthur:server:(12832) 0.008356] [test/INFO] Convert azerty to long
[arthur:server:(12832) 0.053995] [gras_msg/INFO] Propagate local exception ('Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')') from 'convert a2i' RPC cb back to 127.0.0.1:1024
** SimGrid: UNCAUGHT EXCEPTION received on arthur(12832): category: invalid_arg; value: 0
** Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')
** Thrown by server() in this process
[arthur:server:(12832) 0.054088] xbt/ex.c:113: [xbt_ex/CRITICAL] Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')

**   In server_convert_a2i_cb() at /home/mquinson/Code/simgrid-git/doc/gtut-files/test.c:48
**   In gras_msg_handle() at /home/mquinson/Code/simgrid-git/src/gras/Msg/gras_msg_exchange.c:400
**   In server() at /home/mquinson/Code/simgrid-git/doc/gtut-files/test.c:71
[arthur:server:(12832) 0.055022] [test/INFO] Server done
[arthur:server:(12832) 0.055063] [gras/INFO] Exiting GRAS
[arthur:client:(12837) 0.000025] [test/INFO] Ask to convert 4321
[arthur:client:(12837) 0.004416] [test/INFO] The server says that 4321 is equal to "4321".
[arthur:client:(12837) 0.004468] [test/INFO] Ask to convert 1234
[arthur:client:(12837) 0.008930] [test/INFO] The server says that "1234" is equal to 1234.
[arthur:client:(12837) 0.055412] [test/INFO] The server refuses to convert azerty. Here is the received exception:
** SimGrid: UNCAUGHT EXCEPTION received on arthur(12837): category: invalid_arg; value: 0
** Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')
** Thrown by server() on host arthur(12832)
[arthur:client:(12837) 0.055505] xbt/ex.c:113: [xbt_ex/CRITICAL] Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')

**   In server_convert_a2i_cb() at /home/mquinson/Code/simgrid-git/doc/gtut-files/test.c:48
**   In gras_msg_handle() at /home/mquinson/Code/simgrid-git/src/gras/Msg/gras_msg_exchange.c:400
**   In server() at /home/mquinson/Code/simgrid-git/doc/gtut-files/test.c:71
[arthur:client:(12837) 0.055564] [test/INFO] Again, previous exception was excepted
[arthur:client:(12837) 0.056367] [test/INFO] Stopped the server
[arthur:client:(12837) 0.056404] [gras/INFO] Exiting GRAS
$
$ killall test_server
$
$ ./test_simulator platform.xml test.xml
[Boivin:client:(2) 0.000000] [test/INFO] Ask to convert 4321
[Jacquelin:server:(1) 0.000538] [test/INFO] Convert 4321 to string
[Jacquelin:server:(1) 0.000538] [test/INFO] 4321 converted to string: 4321
[Boivin:client:(2) 0.001077] [test/INFO] The server says that 4321 is equal to "4321".
[Boivin:client:(2) 0.001077] [test/INFO] Ask to convert 1234
[Jacquelin:server:(1) 0.001615] [test/INFO] Convert 1234 to long
[Boivin:client:(2) 0.002153] [test/INFO] The server says that "1234" is equal to 1234.
[Jacquelin:server:(1) 0.002692] [test/INFO] Convert azerty to long
[Jacquelin:server:(1) 0.002692] [gras_msg/INFO] Propagate local exception ('Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')') from 'convert a2i' RPC cb back to Boivin:1024
** SimGrid: UNCAUGHT EXCEPTION received on Jacquelin(1): category: invalid_arg; value: 0
** Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')
** Thrown by server() in this process
[Jacquelin:server:(1) 0.002692] xbt/ex.c:113: [xbt_ex/CRITICAL] Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')

**   In server_convert_a2i_cb() at /home/mquinson/Code/simgrid-git/doc/gtut-files/test.c:48
**   In gras_msg_handle() at /home/mquinson/Code/simgrid-git/src/gras/Msg/gras_msg_exchange.c:400
**   In server() at /home/mquinson/Code/simgrid-git/doc/gtut-files/test.c:71
**   In xbt_ctx_sysv_stop() at /home/mquinson/Code/simgrid-git/src/xbt/xbt_context_sysv.c:257
**   In makecontext() at ??:0
**   In update_actions_state() at /home/mquinson/Code/simgrid-git/src/surf/surf_timer.c:108
**   In surf_solve() at /home/mquinson/Code/simgrid-git/src/surf/surf.c:543
**   In SIMIX_solve() at /home/mquinson/Code/simgrid-git/src/simix/smx_global.c:347
**   In gras_main() at /home/mquinson/Code/simgrid-git/src/gras/Virtu/sg_process.c:222
[Boivin:client:(2) 0.003490] [test/INFO] The server refuses to convert azerty. Here is the received exception:
** SimGrid: UNCAUGHT EXCEPTION received on Boivin(2): category: invalid_arg; value: 0
** Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')
** Thrown by server() on host Jacquelin(1)
[Boivin:client:(2) 0.003490] xbt/ex.c:113: [xbt_ex/CRITICAL] Error while converting azerty: this does not seem to be a valid number (problem at 'azerty')

**   In server_convert_a2i_cb() at /home/mquinson/Code/simgrid-git/doc/gtut-files/test.c:48
**   In gras_msg_handle() at /home/mquinson/Code/simgrid-git/src/gras/Msg/gras_msg_exchange.c:400
**   In server() at /home/mquinson/Code/simgrid-git/doc/gtut-files/test.c:71
**   In xbt_ctx_sysv_stop() at /home/mquinson/Code/simgrid-git/src/xbt/xbt_context_sysv.c:257
**   In makecontext() at ??:0
**   In update_actions_state() at /home/mquinson/Code/simgrid-git/src/surf/surf_timer.c:108
**   In surf_solve() at /home/mquinson/Code/simgrid-git/src/surf/surf.c:543
**   In SIMIX_solve() at /home/mquinson/Code/simgrid-git/src/simix/smx_global.c:347
**   In gras_main() at /home/mquinson/Code/simgrid-git/src/gras/Virtu/sg_process.c:222
[Boivin:client:(2) 0.003490] [test/INFO] Again, previous exception was excepted
[Boivin:client:(2) 0.004027] [test/INFO] Stopped the server
[Boivin:client:(2) 0.004027] [gras/INFO] Exiting GRAS
[Jacquelin:server:(1) 0.004027] [test/INFO] Server done
[Jacquelin:server:(1) 0.004027] [gras/INFO] Exiting GRAS
$