int myport; /* port on which I receive stuff */
int todo; /* amount of messages I should get */
char *data; /* message content */
-
+
gras_socket_t mysock; /* socket on which other people contact me */
gras_socket_t expeditor; /* to notice who wrote me */
-
+
/* Init the GRAS infrastructure and declare my globals */
gras_init(&argc,argv);
-
+
/* Get my settings from the command line */
myport=atoi(argv[1]);
todo=atoi(argv[2]);
- /* Create my master socket */
- mysock = gras_socket_server(myport);
-
/* Register the known messages */
gras_msgtype_declare("data", gras_datadesc_by_name("string"));
- /* Get the data */
+ /* Create my master socket */
+ mysock = gras_socket_server(myport);
+ /* Get the data */
INFO2("Listening on port %d (expecting %d messages)",
gras_socket_my_port(mysock),
todo);
&expeditor,
&data);
todo--;
-
+
INFO3("Got Data from %s:%d (still %d to go)",
gras_socket_peer_name(expeditor), gras_socket_peer_port(expeditor),
todo);
int sender (int argc,char *argv[]) {
- int i; /* iterator */
+ unsigned int iter; /* iterator */
char *data; /* data exchanged */
int datasize; /* size of message */
xbt_peer_t h; /* iterator */
-
- gras_socket_t peer; /* socket to node */
-
-
+ int connected = 0;
+
+ gras_socket_t peer=NULL; /* socket to node */
+
+
/* xbt_dynar for peers */
xbt_dynar_t peers = xbt_dynar_new(sizeof(xbt_peer_t),&xbt_peer_free_voidp);
-
+
/* Init the GRAS infrastructure and declare my globals */
gras_init(&argc,argv);
-
+
/* Get the node location from argc/argv */
- for (i=1; i<argc-1; i++){
- xbt_peer_t peer = xbt_peer_from_string(argv[i]);
+ for (iter=1; iter<argc-1; iter++){
+ xbt_peer_t peer = xbt_peer_from_string(argv[iter]);
xbt_dynar_push(peers,&peer);
}
-
+
datasize=atoi(argv[argc-1]);
-
+
data=(char *) malloc(datasize+1); // allocation of datasize octets
memset(data, 32, datasize);
data[datasize] = '\0';
gras_msgtype_declare("data", gras_datadesc_by_name("string"));
- /* Wait for receivers to startup */
- gras_os_sleep(.01);
-
- /* write 'em */
- xbt_dynar_foreach(peers,i,h) {
-
- peer = gras_socket_client(h->name,h->port);
+ /* write to the receivers */
+ xbt_dynar_foreach(peers,iter,h) {
+ connected = 0;
+ while (!connected) {
+ xbt_ex_t e;
+ TRY {
+ peer = gras_socket_client(h->name,h->port);
+ connected=1;
+ } CATCH(e) {
+ if (e.category != system_error /*in RL*/&& e.category != mismatch_error/*in SG*/)
+ RETHROW;
+ xbt_ex_free(e);
+ gras_os_sleep(0.01);
+ }
+ }
gras_msg_send(peer,"data",&data);
if (gras_if_SG()) {
INFO2(" Sent Data from %s to %s", gras_os_myname(),h->name);
} else {
INFO0(" Sent Data");
- }
-
+ }
+
gras_socket_close(peer);
}
/* Free the allocated resources, and shut GRAS down */
+ free(data);
xbt_dynar_free(&peers);
-
+
gras_exit();
return 0;
} /* end_of_sender */